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Version: 6.0
08.04.14
The MTD System
Installation and Operation Manual
The MTD System
Table of Contents
INTRODUCING THE MTD SYSTEM
Page
3
OVERVIEW
MAIN FEATURES OF THE MTD SYSTEM
THE LTC(MTD)/RS485(MTD) SYSTEM
Description
Installation
Basic Set-Up
THE MTDOE SYSTEM
Description
Installation
Basic Set-Up
MTD Central Unit, MTD Groups, Redundant Systems
MAC Address → IP Address → Device Name
Basic Set-Up of MTDoE Devices
Passwords
More Features of the Configuration Program
CONFIGURING MTD UNITS
The Central Generator: Modules RUB GT and RUB GL
UD and SC Series Units
Control Units: TCU Series Units
Module VL: De-Multiplexing and Distribution Unit
Modules RUB AT/DT/HT/XT and RUB AV/DV/HV/XV
D126 and other Displays of the former MTD Series
3
4
6
6
7
9
10
10
10
12
12
13
15
16
18
20
21
23
24
25
26
28
FUNCTIONAL DESCRIPTION
29
GENERAL SETTINGS AND FEATURES
MTD Data: Time and Timers, Date and Status
The Access Rights
Programming of Function Keys
Entry of a Time as a Preset/Offset/Event Value
Configuration of Display Formats and DOWN Modes
Leading Zeros
Leading Zeros at Zero Transition
Down-Stop or Down-Overflow
Flashing of Negative Values
Separating Sign
Display Formats
"ALL" Function Key
Main Times
Time Table
Time Calculator
Beeper: Function and Programming
Display Shut-Off
STOP TIMER OPERATING MODES
Local Stop Timer
Timer A, B, C, D, E, F
UP Stop Timer Function
DOWN and DOWN START Stop Timer Function
DUE: Combination Down/Up/End with Real-Time
DUE NEXT: Combination Down/Up/End with Time Table
29
29
30
31
35
36
39
39
40
40
40
41
43
44
45
46
47
48
49
49
50
51
52
54
55
The MTD System
SET NEXT and NEXT DUE: Extensions of DUE Functions
REAL-TIME OPERATING MODES
MTD Real-Time and Date
OFFSET TIME = Offset + Real-Time
DIFF TIME = Difference Event Time – Real-Time
TIMECODE OPERATING MODES
Time of the Time Code
VTR LTC
OFFSET TC = Offset + VTR LTC
DIFF TC = Difference Event Time - VTR LTC
DUE TC: Combination Down/Up/End with VTR LTC
56
57
57
58
59
60
60
61
62
63
64
TIME ZONE APPLICATION
66
BASIC DESCRIPTION
66
OTHERS
67
ERROR MESSAGES
REVISION HISTORY
67
68
INSTALLATION GUIDE
69
TERMINATION OF THE RS485 LINES
69
The MTD System
Page 3
Introducing the MTD System
Overview
Alpermann+Velte developed the Multiple Time Display System (MTD). An MTD system consists
of a central generator (RUB GT or RUB GL), digital displays and/or analogue clocks as well as
control units. According to application, special distribution units and converters complete the
system.
The MTD system can be built up in two different ways:

Transport of timer data via LTC time code and communication via serial interface RS485:
LTC(MTD) and RS485(MTD).
GT
Control Units
D)
MT
C(
LT
LT
TE C(M
LE TD
GR ) o
AM r
VD VL
Distribution
VT
Displays

+
D) D)
MT T
C( (M
LT S485
R
Time & Date Reference
Clocks
Transport of timer data and communication via Ethernet: MTDoE.
Time & Date Reference
GT
TC_link
Control Units
IE
Option M
Ethernet
Displays
Clocks
The MTD System
Page 4
Main Features of the MTD System
Analogue clocks and digital displays of any quantity can be part of the system to display
different timers. The timers are managed from the central generator unit. The timers are
referenced to a real-time source and can be synchronized to a central black-burst television
signal. An external LTC (VTR LTC) can be connected; the time addresses of this LTC can be
displayed as well. Real-time, black-burst, and VTR LTC should be connected to the central
generator (RUB GT or RUBGL).
Installation details: → Functional Descriptions and Specifications of RUB GT/GL.
Any analogue clock or digital displays can display the following timers:

Time of the real-time; digital displays moreover can show the date.

Timer A or B or C or D or E or F: Each timer can independently receive a programming.

“Main Time“ (1 to 3): The main time is equal to one of the available timers. This
assignment can be changed at will, thus enabling a remote control of the time
displayed.

Time of the time code of the central generator.
The data representation at digital displays can be set for each timer individually:

Time display in a 12-hours or 24-hours format.

The separating signs between HH:MM and MM:SS can be selected.

Displaying leading zeros can be switched on or off.

Flashing at negative values can be switched on or off.

Time and date formats can be selected:
HH:MM:SS or MM MM:SS or SS SS SS or MM:SS:FF or MM:SS.1/10 or SS SS.1/10.
DD.MM.YY or MM.DD.YY or YY.MM.DD.
Any timer A – F can be set to:

UP or DOWN. With DOWN it is possible to choose DOWN STOP (= time stops at 0) or
DOWN-OVERFLOW (= time counts across negative values).

OFFSET TIME: Displaying the real-time (offset = 0) or real-time + offset.

OFFSET TC: Displaying the VTR LTC time (offset = 0) or VTR LTC time + offset.

DIFF TIME: Displaying the remaining time: event time – real-time.

DIFF TC: Displaying the remaining time: event time – VTR LTC time.

TIME ZONE: Time of a time zone. Any time zone can be programmed. Daylight Saving
Time switching can be done automatically.
The MTD System
Page 5
As many control units as you like can be inserted to the system to operate on the timers. Control
units are all devices of the TCU series and devices of the UD series with external keys connected
to the GPI inputs. The main features are:

Regarding UP and DOWN counters: Start/Stop/Reset commands. Enter a preset value.
Add or subtract a correction value of a running counter.

Regarding OFFSET TIME and OFFSET TC: Enter an offset 00:00:00 to 23:59:59.

Regarding DIFF TIME and DIFF TC: Enter an event time 00:00:00 to 23:59:59.

ALL feature: Control more than one or all timers A – F simultaneously.

DUE feature: Combine three timers to a DOWN/UP/END mode.
According to application it is recommended not to enable the control of every timer at every
control unit. For example it is possible to disable the control of selected stop timers or to refuse
setting the real time. Even displaying the time of specific timers can be disabled, thus limiting
TCU’s functionality to those timers actually used in a given application. This keeps the operation
on the timer system easy. This installation is done by the Access Rights feature (see chapter “The
Access Rights”).
The MTD System
Page 6
The LTC(MTD)/RS485(MTD) System
Description
The central MTD generator (RUB GT or RUB GL module) delivers the time & date reference and
manages the stop timers.
This unit generates a specific LTC format which is referred to as LTC(MTD) in this document.
LTC(MTD) fully complies to the SMPTE 12M specification for Linear Time Code. The time
addresses can be decoded by every time code reader, only the binary groups (32 user bits)
carry multiplexed data which can be decoded by Alpermann+Velte units only. The LTC(MTD)
transfers data e.g. to digital displays and includes six independent programmable timers (stop
timers, time zones), real-time, date and status data. Distribution of the LTC(MTD) is possible
using common LTC or audio distribution amplifiers. Alpermann+Velte offers the RUB VD and
the RUB VL modules out of the RUBIDIUM Series as distribution units, the RUB VD being a
distribution amplifier only, the RUB VL additionally can decode and convert the MTD data.
Control units communicate with the central generator via an RS485 bus. This interface is
referred to as RS485(MTD) in this document. As many control units as needed can be
connected to the same RS485(MTD) interface. Groups of control units with separate cable lines
can be built up integrating the RUB VD or RUB VL modules of the RUBIDIUM Series into the
system. Both units offer RS485 transceivers. Control units have to receive the LTC(MTD) and
have to be connected to the RS485(MTD) interface.
Further components can be added to the system integrating the distribution modules of the
RUBIDIUM Series:
RUB VD, directly connected to the central generator RUB GT or RUB GL, is a 1-to-4 LTC
distribution unit and delivers a TELEGRAM signal used to control analogue clocks. Further
RS422 and RS232 interfaces are available, e.g. to transfer time and date to server PCs.
There is no configuration provided for the RUB VD module, all output signals carry the
local time.
RUB VL decodes the LTC(MTD) and generates TELEGRAM signals to control analogue
clocks and RS232/RS422 serial signals. Additionally four LTC outputs can be used to feed
common LTC reader inputs. RUB VL is able to decode and convert the data of the
LTC(MTD), therefore making the MTD stop timers readable for other units. Typical application could be the insertion of counter values onto a video wall.
RUB VT is a distribution and amplifier for the TELEGRAM signal used to control analogue
slave clocks with a 2-wire interface. This unit enhances the number of clocks which could
be connected to one output stage – especially if several SC306T studio clocks are part of
the system.
The MTD System
Page 7
Installation
RUB GT and RUB GL are central generators of the MTD system. These units manage and
generate the counters and time zones. Connect a time & date reference to enable accurate
real-time operating. Connect a black-burst video to phase-lock the LTC(MTD) output. The
LTC(MTD) time code output contains all MTD data and should be connected to the other MTD
units of the system. All units which have the task only to read, display or evaluate these data
don’t need a further input signal. Control units doing any timer manipulations need a
communication link to the central generator, this is the RS485(MTD) interface.
Units and their interfaces:
Unit
Interface
Description
UDxxL
LTC(MTD)
All UD Series displays of type “L“.
SCxxxL
LTC(MTD)
All SC Series studio clocks of type “L“.
D126
LTC(MTD)
Big MTD displays, 126 mm digits height.
Dxx
LTC(MTD)
MTD displays, not continued, replaced by UD displays.
RUB AT/DT/HT/XT
AV/DV/HV/XV
LTC(MTD)
or TC_link
Video inserters, MTD counters can visibly be inserted onto a
video screen.
TCU
LTC(MTD) +
RS485(MTD)
Control units. Operating on all MTD stop timers.
UDxxL
LTC(MTD) +
RS485(MTD)
All UD Series displays of type “L“ which should operate on
an MTD timer by GPI commands.
SC306T
TELEGRAM
Round studio clocks with a 2-wire interface.
Analogue Clocks
TELEGRAM
Analogue slave clocks with a 2-wire interface.
Recommended cables:
Interface
Cable
LTC(MTD)
VTR LTC
Customary audio cables (stereo), shielded types recommended.
Other twisted pairs, shielded, can be used as well, e.g. U/FTP, S/FTP, F/FTP.
RS485(MTD)
Identical to LTC(MTD) cables.
TELEGRAM
Connecting analogue slave clocks with a 2-wire interface. The following
table shows standard values of maximum cable length (each VD/VL output
stage) calculated for a typical copper material:
Cross section [mm2]
0,205
0,324
0,519
e.g. AWG24 solid bar
Length [m], 12 clocks
Length [m], 10 clocks
Length [m], 6 clocks
e.g. AWG22 solid bar
550
660
1100
870
1045
1740
e.g. AWG20 solid bar
1400
1680
2800
Note:
Studio clocks SC306T have their own specification, please refer to the
“Studio Clocks Installation and Operating” manual.
TC_link
RUBIDIUM internal interface, without cables.
The MTD System
Page 8
Power supplies
Unit
Power supply
All RUB modules
RUBIDIUM Power Supply PS or PT. Redundancy is possible.
TCU
External AC/DC converter or supply via VD/VL if cable length ≤ 20 m.
Units with 2-wire
interface
Power supply via the 2-wire interface.
Other units
External AC/DC converter or power cord to 90 – 264 VA~.
System diagram, example
VTR LTC
MTD
GPS
Time & Date
TC_link
VT VD VL GT
AT
AV
TELEGRAM
LTC(MTD)
TELEGRAM
C
LT
or
22
S4
2/R
23
RS
BlackBurst CVBS
RUBIDIUM System
DT
DV
HT
HV
SD digital SD/HD digital
LTC(MTD) +
RS485(MTD)
11 12 1
10
2
3
9
8
4
7 6 5
29:13 A
29:13 A
29:13 A
11 12 1
2
10
3
9
8
4
7 6 5
TCU
Analogue Clocks
Alpermann+Velte
7 8 9
DIFF
TIME
4 5 6
Displays
1 2 3
+ 0 _
12:59:59
11 12 1
10
2
3
9
8
4
7 6 5
START
STOP
RESET
Video Wall
STOP
START
RESET
UDxxL
12:59:59
Displays + Counter Operating
SCxxxL Studio Clocks
11 12 1
2
10
3
9
8
4
7 6 5
12:59:59
TIMER
F
OFFSET TC
OFFSET
DOWN TIME
11 12 1
2
10
3
9
8
4
7 6 5
SC306T
The MTD System
Page 9
Basic Set-Up
The central generator (RUB GT or RUB GL) should generate the specific LTC(MTD) format,
phase-locked to an external signal – if available. The following set-up has to be done utilizing
one of the RUBIDIUM configuration tools:
“Sync = Video“ + connecting a video (black-burst) signal or
“Sync = LTC Read“ + connecting a reference LTC or
“Sync = Seconds Pulse“ + connecting a PPS signal or
“Sync = Internal“.
Important: An external sync signal as selected must be present, otherwise the complete
functionality of the system is not guaranteed!
„User Mode = MTD Data“
UD or SC series devices should receive a similar set-up utilizing the UD SC Config.exe
program:
„Source = LTC(MTD)“
Basically all features of the MTD system will be described in the following chapters. How to use
these features for individual devices, how to set up these devices, this will be described in the
related operating descriptions. For example, TCU control units have programmable function
keys, displays and studio clocks can be set to one of the MTD timer, etc.
The MTD System
Page 10
The MTDoE System
Description
The central MTD generator (RUB GT or RUB GL module) is the time & date reference and
manages the stop timers.
This generator can be used in the LTC(MTD)/RS485(MTD) system as well as in the MTDoE
system. The MTDoE system utilizes the internal TC_link interface of the RUBIDIUM system to
transmit the MTD data to the RUB Ethernet module (RUB IE or RUB PM with option M), the
Ethernet module opens the gates to the local Ethernet. The Ethernet is used to transport the
timer data as well as to communicate between control units and central generator. There is no
LTC(MTD) neither RS485(MTD) connection necessary.
Alpermann+Velte’s MTDoE devices have the property to perform an auto-installation within an
Ethernet network, i.e. the units find them selves, assign them selves to a group and can be
listed, named and configured centrally.
The MTD data of the central generator include six independent programmable timers (stop
timers, time zones), real-time, date and status data.
Displays, studio clocks and control units read these data and communicate via Ethernet. These
units have to be of type “E”.
Further components can be added using the LTC(MTD) and the output signals of the distribution
modules of the RUBIDIUM Series. Please refer to chapter “The LTC(MTD) and RS485(MTD)
System“ for more details.
Installation
The system is specified for 100Base-T Ethernet and standard CAT5 cables. Some units can be
ordered with “Power over Ethernet“ (PoE), in this case please pay attention to the common PoE
standard.
Units ready for the Ethernet system:
Unit
Description
RUB GT, RUB GL
Central generator, transmits data via TC_link.
RUB IE, RUB PM
with option “M“
Receives data via TC_link and opens the gate to Ethernet.
RUB AT/DT/HT/XT
RUB AV/DV/HV/XV
Video inserters, MTD counters can visibly be inserted onto a video
screen. Data will be received via TC_link, therefore these modules have
to be installed together with the central generator in the same RUBIDIUM
system.
TCUE, TCUE H1
Control units. Operating on all MTD stop timers.
UDxxE
All UD Series displays of type “E“.
SCxxxE
All SC Series studio clocks of type “E“.
Other units
Further units can be added using the LTC(MTD).
The MTD System
Page 11
Power supplies
Unit
Power supply
All RUB Module
RUBIDIUM Power Supply PS or PT. Redundancy is possible.
TCUE
Power over Ethernet (PoE). If PoE cannot be made available: External
power supply (PoE injector).
UDxxE
PoE available for UD25E, UD25TTE, UD56 (option UD-PoE) as an
alternative to the UD-EP external power adapter.
UD300E uses a power cord to 90 – 264 VA~.
Other types use the UD-EP external power adapter.
SCxxxE
PoE available for all types (option SC-PoE) as an alternative to the SC-EP
external power adapter.
System diagram, example
VTR LTC
GPS
MTD
RUBIDIUM System
Time & Date
TC_link
VT VD VL GT IE
Option M
BlackBurst
AT
AV
DT
DV
CVBS
SD digital SD/HD digital
29:13 A
29:13 A
HT
HV
refer to the LTC(MTD) / RS485(MTD) system
l
ca ork
Lo etw
N
UDxxE
12:59:59
Displays
11 12 1
10
2
3
9
8
4
7 6 5
SCxxxE Studio Clocks
START
STOP
RESET
TCUE
Alpermann+Velte
7 8 9
TIMER
F
OFFSET TC
OFFSET
DOWN TIME
DIFF
TIME
4 5 6
1 2 3
+ 0 _
STOP
START
RESET
29:13 A
UDxxE
12:59:59
Display + Counter Operating
The MTD System
Page 12
Basic Set-Up
MTD Central Unit, MTD Groups, Redundant Systems
RUB GT and RUB GL modules are central generators of the MTD system.
A system can be built up with one central unit or – to gain redundancy – with two units working
in parallel. In both cases there is one MTDoE group. Six independent timers are available in
one group. If there is need for more than six timers, a second system can be integrated in the
same network; this constitutes a different MTD group. Every MTDoE device (display, studio
clock, control unit) must be assigned to a group, so it has access only to data of this group.
SL
GT GT
IE
l
ca ork
Lo etw
N
TC_link
12:59:59
12:59:59
12:59:59
12:59:59
Option M
Two independent systems in one network. It is
recommended to keep each MTD central unit
and corresponding Ethernet module separate:
TC_link
GT IE
Option M
Local Network
TC_link
GT IE
Option M
The Group Number has to be set at the
RUB GT/GL: Configuration “MTD Generate“.
Example: MTD over Ethernet “Group = 1“
12:59:59 12:59:59
12:59:59 12:59:59
12:59:59 12:59:59
12:59:59 12:59:59
Group 2 Group 1
Redundant GT system = one group:
RUB GT/GL should send data via TC_link to
the Ethernet module: Enable the Reference
and MTDoE telegrams.
In a redundant GT/GL system both modules have to receive identical set-up. Ethernet modules
can operate in a redundant way as well. Simply add a second Ethernet module to the system; it
receives the same data via TC_link. One module will be active; the other module will take over
in case of a failure of the active module.
Important: Please notice chapter “Configuring MTD Units → The Central Generator: Modules
RUB GT and RUB GL” for more important set-ups.
The MTD System
Page 13
MAC Address → IP Address → Device Name
To set up the external MTDoE devices please follow these steps:

Find out the MAC and IP address of the device and give the device a name.

Set or change group numbers and passwords – if you like.
Each external MTDoE device has a world-wide unique MAC (Media-Access-Control) address.
MAC addresses are 12-digit hexadecimal numbers, e.g. 00-60-35-0C-EE-77. Within an
MTDoE system the first six digits are the same, the last six digits identify the device.
Each device in a network is given an IP address; these addresses are usually generated
automatically. Example of an IP address: 192.168.0.53.
The devices found in a network will be identified by their IP address. If you know the corresponding MAC address, then you can physically indentify the device. It is strongly recommended
to give a name to each device. This name can tell you something about the function and/or the
location of the device. This name appears in the list and allows a specific configuration in a
comfortable way.
12:59:59
12:59:59
12:59:59
12:59:59
12:59:59
12:59:59
This device ...
Connection
...
...
ETH(192.168.0.54)
Product
...
...
UD25E
Source
...
...
MTD.1
Device Name
...
...
Studio A
lo
ca
te
d
12:59:59
...
is
12:59:59
he
re
.
Studio A
Use the UD SC Config.exe program for the set-up and configuration of MTDoE devices.
The MTD System
Page 14
Find out the MAC address → the corresponding IP address → the location of the device: There
are two ways of doing this step.
1. Address a single device via USB – for devices with or without a display:

Connect the USB and execute the UD SC Config.exe at your PC or laptop.
The program gives a list of all devices found.
Click on the device in the list which shows the
USB connection.
Press button “Configure“ to open the configuration of the devices.
Please proceed to read at section “Basic Set-Up
of MTDoE Devices”.
2. Addressing via network for all devices with a display:

Be sure that these devices are connected to the network and switched on.
Now start the UD SC Config.exe at a computer which is connected to the same network.

Click on the “Tools“ menu and open “MTD Setup ...“, this opens the window Configure
Ethernet MTD System with detailed information.
→

Select all those units from which you want to find out the MAC address. Right click on the
selection, then choose “Ident“ and “Start“. Now all selected devices will show the last six
digits of their MAC address at their display. Now look at every display and write
down the MAC address and the location of the device. The list gives you the
relationship between MAC → IP address.

Click on “Ident“ and “Stop“, now the displays return to normal operating mode. Close the
window Configure Ethernet MTD System.

Double clicking a device in the list opens the configuration. Now proceed as follows.
The MTD System
Page 15
Basic Set-Up of MTDoE Devices
Tab Source:
Verify that “MTD“ has been selected.
Tab Ethernet:
Verify and maybe change the group number.
→
Click button “Show Current Configuration...“, this opens an info box showing the IP and
MAC addresses.
Tab System:
Give the device a significant name: Enter a text (10 characters) in the Name field. Complete
with Enter or Tab key.
If all devices have received a name it is much more comfortable to select a specific device out
of the list. Example of a list:
The MTD System
Page 16
Passwords
Having finished the first configuration of the MTDoE units, you might protect the units against
non permission or unintentional access via Ethernet. Each unit can get its own password, and
an MTDoE group can get a password as well. Any configuration with a USB connection ignores
the password.
The password for a single unit will be stored at a non-volatile memory of the unit. The MTDoE
group password will be stored and managed from the RUB Ethernet module. The Ethernet
module transmits this password to all members of this group. The MTDoE group password
overwrites a password for a single unit.
The password for a single unit can be set utilizing the UD SC Config.exe program. Either you
open the configuration of the unit and switch to the System tab or you click on the “Tools“
menu and open “MTD Setup ...“, this opens the window Configure Ethernet MTD System;
select one unit, right click on the selection, then choose “Set Password ...“, now the following
entry opens:
Enter the password twice and press the OK button. Clear an existing password by checking No
Password.
The MTDoE group password can be set at the RUB Ethernet module; please refer to the
description “Ethernet Option M: MTDoE“.
The UD SC Config.exe gives a list of MTDoE devices dependent on password settings:
No password entered in
the “Password“ field.
The list contains those units which have neither a single nor a
group password.
The password for a single
unit entered in the
“Password“ field.
The list contains the unit with a matching password and those
units which have neither a single nor a group password.
The MTDoE group
password entered in the
“Password“ field.
The list contains all units of this group, even units which are
protected by a single password, and those units which have
neither a single nor a group password.
Forgotten Password?
Unit with USB? Then you are lucky! You can gain access to the unit very easily because the USB
connection ignores the password – please refer to the description above.
Unit without USB? If the unit is part of an MTDoE group and there is a group password, then
you can find and configure the unit using this password.
The MTD System
Page 17
Failing that, the following password recovery procedure will help provided the firmware of the
unit is of version 4.6 or higher:
1. Start the UD SC Config.exe PC program. The unit will not appear in the list.
2. Click on Tools and MTD Setup..., this will open the Configure Ethernet MTD System
window. Check the Protected checkbox, the list now will show your unit as a protected
device, for example:
3. The ID shown at the first column normally shows the last six digits of the MAC address,
but for a protected device this will be a fake ID which alters each time after powering on
the unit.

Please send this ID to Alpermann+Velte via email.

Please do not switch off the unit – otherwise this fake ID will be lost.
4. Alpermann+Velte will return a recovery password. Close the UD SC Config.exe PC
program and open it again.
5. Enter the recovery password at the Password field and click Refresh. Now the unit will
appear in the list.
6. The recovery password will not be valid anymore if the unit will be switched off and on
again. Therefore, select your unit from the list and click Configure. Clear the old
password and enter a new password.
This procedure did not helped? Then your unit has an old firmware which does not support this
procedure. The password can only be cleared from Alpermann+Velte technical support, so
please use our online repair request (RMA):
 The first step will be to access the RMA page at http://rma.alpermann-velte.com.
 Please login and follow the step by step instructions to create online RMA requests and
view repair status.
The MTD System
Page 18
More Features of the Configuration Program
The Menues:
File
Flash Update ...
Starts the firmware update (→ chapter “Firmware Update“).
Edit
Configure ...
Opens the configuration of the unit.
Tools
MTD Setup ...
Opens the window Configure Ethernet MTD System with
detailed information in a list of all MTDoE devices found in the
Ethernet network (see below).
Help
About ...
Opens a window with status information, e.g. indicating the
version number.
Button Refresh
Repeats searching Alpermann+Velte MTDoE devices, connected
via USB or Ethernet to this computer. The list will then get an
update.
Filter:
Using filter options, the list can be kept handy:
Group:
Enter a group number to show only the devices of this
MTDoE group.
Selecting <all> will show all devices in the list.
Password: Password protected devices will not show up in the list
unless the correct password is entered.
The MTD System
Page 19
The window Configure Ethernet MTD System:
Filter:
Using filter options, the list can be kept handy:
Group:
Enter a group number to show only the devices of this MTDoE group.
Selecting <all> will show all devices in the list.
Password: Password protected devices will not show up in the list unless the
correct password is entered.
Master:
If checked: RUB Ethernet modules will be listed as well.
Protected: If checked: Those units, which normally would not be listed because
the correct password has not been entered, will be indicated with ID,
Type and a “protected”.
Select one or more units, and then right click on the selection: This will open the following
window:
Ident
Start: All selected devices will show the last six
digits of their MAC address at their display.
Stop: Stops showing the MAC address.
Reboot
Forces a warm boot of the devices.
Assign Group... The selected devices can be assigned to an
MTDoE group.
Set Password... A password can be entered.
Button Refresh
Repeats searching Alpermann+Velte MTDoE devices, connected via
Ethernet to this computer. The list will then get an update.
Button Export to file...
Store this list in an Excel format to your computer.
The MTD System
Page 20
Configuring MTD Units
Configuration tools:
 Configuration of RUBIDIUM Series units requires the Rubidium Config.exe PC program
or the RUBIDIUM SERIES HTTP-Server via RUB Ethernet (RUB IE or RUB PM) module.
 Configuration of UD and SC Series units requires the UD SC Config.exe PC program.
 Configuration of TCU Series units (without Ethernet) requires the TcuConfig.exe PC
program via USB interface.
 Configuration of MTDoE units (TCU, UD and SC Series units of version “E“) requires the
UD SC Config.exe PC program via Ethernet or USB.
 Configuration of D126 displays or other displays of the (former) MTD Dxx Series (D25,
D56, ...) is done by a rotary switch at the unit.
Units divided into functional groups:
Units which have to receive a configuration can be assigned to the following groups:
Central units:
RUB GT or RUB GL (former GM-TTT, G30TTT).
Clocks and displays:
SC Series units (former AC ...) and UD Series units (former D...).
Control units:
TCU Series units (former MTD BE). UD Series units can operate as a
control unit using the GPI inputs (former BD... Series units).
Distribution units:
VL, decodes the MTD data and can be configured in a way to output
specific MTD timer values as LTC or serial data string or pulse telegram.
Inserter:
AT/DT/HT/XT and AV/DV/HV/XV (former MTD I and TC300-MTD).
The MTD System
Page 21
The Central Generator: Modules RUB GT and RUB GL
Details of configuration → Functional Description and Specifications Module GT.
Details of configuration → Functional Description and Specifications Module GL.
It is strongly recommended to lock the time code of the generator to an external sync signal.
At the Generate tab:
“Sync = Video“ + connecting a video (black-burst) signal or
“Sync = LTC Read“ + connecting a reference LTC or
“Sync = Seconds Pulse“ + connecting a PPS signal or
“Sync = Internal“.
Important: An external sync signal as selected must be present, otherwise the complete
functionality of the system is not guaranteed!
System MTDoE:
At the Link tab:
One telegram should be selected as “Reference“.
Another telegram should be selected as “MTDoE“.
AT/DT/HT/XT or AV/DV/HV/XV modules may be part of the system in order to visibly insert
a time, a date, or a stop timer. In this case these modules can receive the data from GT/GL
without an external cable connection. One telegram should be selected as “Gen“.
The MTD System
Page 22
System LTC(MTD)/RS485(MTD):
At the Generate tab select “User Mode = MTD Data“.
At the Link tab:
If a RUB Ethernet module with option N is part of the system, GT/GL is responsible
delivering the reference time to the NTP server. One telegram should be select as
“Reference“.
AT/DT/HT/XT or AV/DV/HV/XV modules may be part of the system in order to visibly insert
a time, a date, or a stop timer. In this case these modules can receive the data from GT/GL
without an external cable connection. One telegram should be selected as “Gen“.
The MTD System
Page 23
UD and SC Series Units
System LTC(MTD)/RS485(MTD):
Select the source: LTC(MTD)
System MTDoE:
Select the source: MTD
Select the display mode at “Mode“:
GPI programming (example):
Control of a stop timer:
Switching the display mode:
Details of configuration → Installation and Operating Manual UD Series Displays.
Details of configuration → Installation and Operating Manual Studio Clocks.
The MTD System
Page 24
Control Units: TCU Series Units
Access rights:
According to application it is recommended not to enable the control to every display mode.
For example it is possible to disable the control of selected stop timers or to refuse setting the
real time. Even displaying the time of specific timers can be disabled, thus limiting the
functionality of the control unit to those timers actually used in a given application. This keeps
the operation on the timer system easy.
This installation is done by the Access Rights feature. A display mode can be switched to:
On
= displaying and operating possible;
Display = displaying possible but no operating;
Off
= neither displaying nor operating possible.
Function keys:
Any control unit offers programmable Function Keys. This makes it easy to adjust the control
unit best according to application.
Example of functions:
Set the timer mode: UP, DOWN, DIFF TIME, OFFSET TIME, ...
Define the main time: 1st main time = Timer A, ...
Special stop timer control: RESET/START, OFFSET+, ...
See chapter “Table of Functions to Program Keys and GPIs“ for a list of all functions.
GPI:
Any control unit offers programmable GPI Inputs, e.g. to connect external buttons. Any GPI
input can receive a function as a key.
Any control unit offers programmable GPI Outputs, e.g. to output a trigger signal at a zero
crossing of a stop timer.
Configuration in a LTC(MTD)/RS485(MTD) system: TCU or TCU H1
Configure the access rights: Execute TcuConfig.exe and switch to the MTD Access
Rights tab; or open an installation mode by pressing keys 9 and 1 simultaneously.
Configure the function keys and GPI inputs: Execute TcuConfig.exe and switch to the
Function Keys tab; or open an installation mode by pressing keys 9 and 2 simultaneously.
Configure the GPI outputs: Execute TcuConfig.exe and switch to the GPIs tab.
Details of configuration → Operating Manual TCU.
Configuration in an MTDoE system: TCUE or TCUE H1
Configure the access rights, function keys, and GPI inputs: Execute UD SC Config.exe
and switch to the Keyboard tab.
Configure the GPI outputs: Execute UD SC Config.exe and switch to the GPI tab.
Details of configuration → Operating Manual TCUE.
The MTD System
Page 25
Module VL: De-Multiplexing and Distribution Unit
The LTC(MTD) has to be connected to input IN.
At the VL Input tab select “User Mode = MTD Data“.
At the VL Output tab each output can be configured independently. This is true for four LTC
outputs, four serial interfaces, and four pulse outputs.

LTC output = LTC input:
Time Mode = Ref. Time Offset 1, with Offset 1 = 0.
User Mode = Ref. User.

LTC/serial/pulse output =
time of an MTD stop timer (for example timer A):
Mode = MTD Timer A.
Details of configuration → Functional Description and Specifications Module VL.
The MTD System
Page 26
Modules RUB AT/DT/HT/XT and RUB AV/DV/HV/XV
These units as part of the MTD system mainly are used to visibly insert MTD timers onto a video
screen.
RUB AT/DT/HT/XT can receive MTD data via the LTC(MTD) connected to LTC input. Likewise it
is possible to receive MTD data via TC_link, the internal interface of the RUBIDIUM system. This
data transfer without additional external cable requires either RUB GT/GL to be located in the
same housing or an interconnection of the housings. RUB AV/DV/HV/XV can receive the MTD
data via TC_link only.
Reading from LTC(MTD):
“LTC Read“ should be enabled.
Configure the “Read“ function this way:
Reading from TC-link requires RUB GT/GL sending the “Gen“ telegram. This example assumes
that telegram 3 has been selected to send “Gen”.
Enable “Link“, but with “Telegram“ = “off“.
Configure the “Read“ function this way:
The MTD System
Page 27
At the “Insert“ tab, you can adjust the video window as you like. Example:
Details of configuration → Functional Description and Specifications Modules AT and AV.
Details of configuration → Functional Description and Specifications Modules DT and DV.
Details of configuration → Functional Description and Specifications Modules HT and HV.
The MTD System
Page 28
D126 and other Displays of the former MTD Series
These units should receive the LTC(MTD). The BD... version units are control units communicating via RS485(MTD) with the central generator.
Configuration is done by a HEX turn switch:
Position
Display and
operating mode
Description
0
Local stop timer
1
1st main time
2
3
4
MTD real-time
MTD date
“Master“
5
“Slave“
6
7
8
LTC time
LTC user
2nd main time
Connect external keys to control this timer. There is no
communication with the central generator.
Display and control of 1st main time. It depends on the
current assignment whether the time is equal to real-time,
date or timer A – F.
Decoding the real-time out of the LTC(MTD).
Decoding the date out of the LTC(MTD).
Local stop timer mode and sending timer values to external
slave displays via RS485 interface.
Displaying timer vales received from a “master” via RS485
interface.
LTC reader mode: Displaying the time addresses.
LTC reader mode: Displaying the user bits (binary groups).
Display and control of 2nd main time. It depends on the
current assignment whether the time is equal to real-time,
date or timer A – F.
Operating mode with installation; display and operation of
all timers possible.
Display and control of 3rd main time. It depends on the
current assignment whether the time is equal to real-time,
date or timer A – F.
Operating mode without installation; display and operation
of all timers possible..
Display and control (“BD”) of timer A
Display and control (“BD”) of timer B
Display and control (“BD”) of timer C
Display and control (“BD”) of timer D
Display and control (“BD”) of timer E
Display and control (“BD”) of timer F
“BD“ version
9
3rd main time
“BD“ version
A
B
C
D
E
F
Timer A
Timer B
Timer C
Timer D
Timer E
Timer F
Details of configuration → Manual DD15/D25/D56/D126.
Details of configuration → Manual DSR230/DSR300.
Details of configuration → Manual BDD15/BD25/BD56.
The MTD System
Page 29
Functional Description
General Settings and Features
MTD Data: Time and Timers, Date and Status
The MTD data of the central generator include six independent programmable timers, realtime, date and status data. Any external MTD device can be set to display a time, a date, or a
timer. MTD control units can manually control the timers. Status information defines the way of
displaying the data, so all displays set to the same display mode will show really the same.
Date, Time, Timers
MTD real-time
The current time of the local time zone. The local time zone is defined by
programming the central generator. This time should be displayed only, not
operated.
MTD date
The current date of the local time zone. The local time zone is defined by
programming the central generator. This date should be displayed only, not
operated.
Timer A – F
Each timer can receive its own operating mode. The operating mode can be
changed by a control unit at will. Some operating modes allow a timer
control during operation.
Operating modes:
Stop timer and DUE functions: → Chapter “Stop Timer Operating Modes“.
Offset time, difference time:
→ Chapter “Real-Time Operating Modes“.
Offset TC, difference TC:
→ Chapter “VTR LTC Operating Modes“.
Time zone:
→ Chapter “Time Zone“.
Status data
(→ Chapter “Configuration of Display Formats and DOWN Modes)
DOWN mode
→ Chapter “Down-Stop or Down-Overflow“.
Display formats
→ Chapter “Display Formats“.
Separating sign
→ Chapter “Separating Sign“.
Leading zeros
→ Chapter “Leading Zeros “ and “Leading Zeros at Zero Transition“.
Flashing
→ Chapter “Flashing of Negative Values“.
Colour
→ Chapter “Colour of LED Displays“.
Main timers
→ Chapter “Main Times“.
Automation
Timer A – F can be controlled by an automation system instead of a manual
control. Control units can indicate this status.
Read all about this option in the manual: “RUBIDIUM GT + Option A:
Controlling the MTD Timers by an Automation System“.
The MTD System
Page 30
The Access Rights
According to application it is recommended not to enable the control to every timer by every
control unit. For example it is possible to disable the control of selected stop timers or to refuse
setting the real time. Even displaying the time of specific timers can be disabled, thus limiting
the functionality of a control unit to those timers actually used in a given application. This keeps
the operation on the timer system easy.
This installation is done by the Access Rights feature. A display mode can be switched to:
On
= displaying and operating possible;
Display = displaying possible but no operating;
Off
= neither displaying nor operating possible.
Programming the Access Rights is an installation feature of the control unit. Please refer to the
manual of the unit for an installation guide.
Alpermann+Velte
7 8 9
TIMER
DOWN
OFFSET
DOWN TIME
C
DIFF
TIME
4 5 6
1 2 3
+ 0 _
12:59:59 Real-Time
00:00:59 C
00:00:01 B
13:00:58 A
SPEAKER 1
12:59:59 Real-Time
00:00:59 C
00:00:01 B
13:00:58 A
STUDIO 1
CONTROL 1
Example:
00:23:17 D
Alpermann+Velte
7 8 9
TIMER
DOWN
OFFSET
DOWN TIME
D
DIFF
TIME
4 5 6
STOP
START
RESET
Control on A, B, C
1 2 3
+ 0 _
STOP
START
RESET
Control on D
The MTD System
Page 31
Programming of Function Keys
MTD control units offer function keys. These keys receive a user defined function, e.g. UP or
DOWN to select a stop timer mode, or A, B, to switch to a specific display mode. The backlit
lamp in the key will light up if the programmed function is currently activated.
Programming:
Programming the function keys at TCUE and TCUE H1 control units: Start the UD SC
Config.exe PC program and switch to the “Keyboard“ tab. For more details please refer to the
manual of the control unit.
Programming the function keys at TCU and TCU H1 control units: Start the TcuConfig.ex PC
program and switch to the “Function Keys“ tab. Alternatively it is possible to do the programming without a PC program: Simultaneously press keys 9 and 2, then press the function key,
then enter the program code. For more details please refer to the manual of the control unit.
Programming the function keys at MTD BE and “BD...” Series displays: Simultaneously press
keys 9 and 2, then press the function key, then enter the program code. For more details
please refer to the manual of the control unit.
Tables of Functions:
Timer Commands and General Functions
Code
Dropdown
list
Description
OLED text or
proposed label
00
No function
01
02
91
No
Operation
Start
Stop
Reset
Hold
Start / Stop
Reset+Start
Reset +
Continue
Up
Down
Down+Start
05
06
26
07
Offset Time
Offset TC
Offset TC 0
Diff Time
OFFSET TIME
OFFSET TC
OFFS TC 0
DIFF TIME
08
40
Diff TC
+
DIFF TC
+
67
68
69
66
31
60
88
START
STOP
RESET
HOLD
START STOP
RESET START
RESET CONT
UP
DOWN
DOWN START
START command
STOP command
RESET command
HOLD command: Display freezes last value
Toggles START and STOP command
RESET + START with one command
RESET command if selected timer stays in stop mode.
RESET + START command if selected timer is running.
Stop timer function, up-counting
Stop timer function, down-counting
Allows changing from UP to DOWN directly: enter a
preset value, then press DOWN START: Timer counts
downwards.
MTD real-time + time offset
VTR LTC + time offset
VTR LTC + time offset: reset offset to 0
Time difference: Difference of event time – MTD realtime
Time difference: Difference of event time – VTR LTC
Plus: Switch to next display mode
The MTD System
Page 32
41
04
–
All
–
ALL
09
28
03
27
29
30
Time Table
Calc
DUE
DUE Next
Set Next
Next DUE
TIME TABLE
CALC
DUE
DUE NEXT
SET NEXT
NEXT DUE
50
Beep
Program
Beep
On/Off
GPI3
Program
BEEP PGM
Minus: Switch to next display mode
Control all timers - enabled for operating simultaneously
Open/close the time table
Calculator to add/subtract time values
DOWN/UP/END combination
DOWN/UP/END combination + NEXT
Transfer next preset value
DOWN/UP/END combination + preset from SET
NEXT
Beeper programming
BEEP ON/OFF
Beeper on/off
51
79
80
86
87
89
90
GPI4
Program
Automation
Automation
Enable
Offset Plus
Offset
Minus
Programming the GPI3 output:
Press GPI3 PGM, enter a time value, store with GPI3
PGM.
GPI3 PGM and key RESET afterwards disables GPI3
output.
GPI4 PGM
Programming the GPI4 output – same way as GPI3
PGM
AUTOMATION Automation control for the selected timer on/off
AUTOM ENABLE Automation control for all timers on/off
GPI3 PGM
OFFSET +
OFFSET –
Correct the time of a running timer:
Enter a correction value, then press OFFSET + to add
this value to the running time.
Correct the time of a running timer:
Enter a correction value, then press OFFSET – to
subtract this value from the running time.
The MTD System
Page 33
Switching display formats
Code
Dropdown
list
OLED text or
proposed label
Description
65
75
76
Frames
Nulls
Nulls Zero
FRAMES
NULLS
NULLS ZERO
77
Down
Overflow
Flash
DOWN OVER
Display format = MM:SS:FF
Change the ‘leading zeros’ display directly
Change the ‘leading zeros at zero transition’ display
directly
Change the down-counting mode directly: DOWNSTOP or DOWN-OVERFLOW
Change the ‘flashing of negative values’ display
directly
78
NEG FLASH
Switching the Main Time
Code
Dropdown list
OLED text or
proposed label
Description
32
33
34
35
36
37
38
39
Main 1 = Time
Main 1 = Date
Main 1 = Timer A
Main 1 = Timer B
Main 1 = Timer C
Main 1 = Timer D
Main 1 = Timer E
Main 1 = Timer F
MAIN 1 TIME
MAIN 1 DATE
MAIN 1 TIMR A
MAIN 1 TIMR B
MAIN 1 TIMR C
MAIN 1 TIMR D
MAIN 1 TIMR E
MAIN 1 TIMR F
1st main time = MTD real-time
1st main time = MTD date
1st main time = Timer A
1st main time = Timer B
1st main time = Timer C
1st main time = Timer D
1st main time = Timer E
1st main time = Timer F
42
43
44
45
46
47
48
49
Main 2 = Time
Main 2 = Date
Main 2 = Timer A
Main 2 = Timer B
Main 2 = Timer C
Main 2 = Timer D
Main 2 = Timer E
Main 2 = Timer F
MAIN 2 TIME
MAIN 2 DATE
MAIN 2 TIMR A
MAIN 2 TIMR B
MAIN 2 TIMR C
MAIN 2 TIMR D
MAIN 2 TIMR E
MAIN 2 TIMR F
2nd main time = MTD real-time
2nd main time = MTD date
2nd main time = Timer A
2nd main time = Timer B
2nd main time = Timer C
2nd main time = Timer D
2nd main time = Timer E
2nd main time = Timer F
52
53
54
55
56
57
58
59
Main 3 = Time
Main 3 = Date
Main 3 = Timer A
Main 3 = Timer B
Main 3 = Timer C
Main 3 = Timer D
Main 3 = Timer E
Main 3 = Timer F
MAIN 3 TIME
MAIN 3 DATE
MAIN 3 TIMR A
MAIN 3 TIMR B
MAIN 3 TIMR C
MAIN 3 TIMR D
MAIN 3 TIMR E
MAIN 3 TIMR F
3rd main time = MTD real-time
3rd main time = MTD date
3rd main time = Timer A
3rd main time = Timer B
3rd main time = Timer C
3rd main time = Timer D
3rd main time = Timer E
3rd main time = Timer F
The MTD System
Page 34
Switching the display mode
Code
Dropdown
list
OLED text or
proposed label
Description
10
12
13
20
21
22
23
24
25
11
18
19
16
Local
Time
Date
Timer A
Timer B
Timer C
Timer D
Timer E
Timer F
Main 1
Main 2
Main 3
TC
LOCAL
TIME
DATE
TIMER A
TIMER B
TIMER C
TIMER D
TIMER E
TIMER F
MAIN 1
MAIN 2
MAIN 3
TC
Switch to local stop timer
Switch to MTD real-time
Switch to MTD date
Switch to timer A
Switch to timer B
Switch to timer C
Switch to timer D
Switch to timer E
Switch to timer F
Switch to 1st main time
Switch to 2nd main time
Switch to 3rd main time
Switch to displaying the time of the time code of the
central MTD generator
The MTD System
Page 35
Entry of a Time as a Preset/Offset/Event Value
Entry at a control unit:
For timer A, B, C, D, E, F, and for the local timer of a control unit, various timer operating
modes can be selected, as there are stop timer mode, offset and time difference functions. For
this purpose, a time value can be entered:

For stop timer functions a start value.

For offset functions an offset (value + real-time or value + VTR LTC).

For difference functions an event time (event time – real-time or event time – VTR LTC).
Entry at a control unit:
The value is entered by using the keys 0...9. The first key press resets the display and shows
only the digit selected with the key. Any further digits will be shifted to the left side of the
display. No leading zeros are displayed. The entered value appears only on the display of the
control unit. The times are always positive and less than 24 hours. It is not possible to set
frames or tenths of seconds. Pressing the corresponding function key (UP, DOWN...) will
transmit the value to the central generator, so that it appears on all connected displays of the
MTD system which are set to the same display mode (e.g. mode A). If required, the value is
previously converted into a valid time:
Display format
1 = HH:MM:SS
Entry
Converted to
99
1:39
99:00
1:39:00
99:00:00
3:00:00
99:99:99
4:40:39
24:00:00
0
Display format
2 = MM MM:SS
Entry
Converted to
99
1:39
99:00
99:00
9 99:00
9 99:00
99 99:99
13 60:39
14 40:00
0
Display format
3 = SS SS SS
Entry
Converted to
99
99
99 99
99 99
8 63 99
8 63 99
9 99 99
1 35 99
8 64 00
0
The entry of a time value can be cancelled pressing the + or - keys.
Entry by configuration of the central generator:
The time offset used for the OFFS TIME/OFFS TC function as well as the event time used for the
DIFF TIME/DIFF TC function can also be set by configuration of the central generator:
MTD Timer tab:
Select one timer out of A – F, choose an offset or difference mode,
then enter the time at the “Offset“ window:
The MTD System
Page 36
Configuration of Display Formats and DOWN Modes
Various display formats and the functionality of DOWN can be programmed for each timer
individually. This programming is valid for the whole MTD system, i.e. the display format is the
same for all displays of a system. Any new set-up will be transmitted to the central generator by
commands, and there it will be stored non-volatile. This set-up is part of the MTD data, and this
way it will reach each MTD unit.
Programming can be done at the central generator or at any MTD control unit.
Details of the formats and functions will be described in the following chapters.
Display formats overview:
Function
available for
Leading zeros on/off (1/0)
Real-time, date,
TC time, A – F
A–F
Real-time, date,
TC time, A – F
A–F
A–F
Date,
TC time, A – F
Date,
A–F
Date,
A–F
TC time, A – F
A–F
A–F
Real-time, A – F
Real-time, A – F
Leading zeros at zero transition on/off (1/0)
Separating sign: Colon/decimal point/space
Overflow (across negative values) when DOWN on/off (1/0)
Flashing of negative values on/off (1/0)
Display format 1 = HH:MM:SS (Hours/Minutes/Seconds)
or TT.MM.JJ (Day/Month/Year)
Display format 2 = MM MM:SS (Minutes 4-digit/Seconds)
or MM.TT.JJ (Month/Day/Year)
Display format 3 = SS SS SS (Seconds 6-digit)
or JJ.MM.TT (Year/Month/Day)
Display format 4 = MM:SS:FF (Minutes/Seconds/Frames)
Display format 5 = MM:SS.Z (Minutes/Seconds/Tenths of seconds)
Display format 6 = SS SS.Z (Seconds 4-digit/Tenths of seconds)
Display format 7 = HH:MM:SS (real-time in 24-hours format)
Display format 8 = HH:MM:SS (real-time in 12-hours format)
All features can be assigned to the local stop timer of a control unit as well.
After a RESET, the central generator is set to the following values:
Setting
Real- Date TC
time
Function
Leading zeros
Leading zeros at zero
transition
Separating sign
DOWN overflow
Flashing negative values
Display format
A
B
C
D
E
F
Offset
TC
1
0
0
-
0
-
Stop Stop Stop Stop Stop
Timer Timer Timer Timer Timer
1
0
0
0
0
0
0
0
0
0
0
.
7
.
1
:
1
:
1
0
1
:
1
0
1
:
1
0
1
:
1
0
1
:
1
0
1
1
0
1
The MTD System
Page 37
Programming by configuration of the central generator:
MTD Timer tab:
Timer
Select one timer: Time (= MTD real time), or Date (= MTD Date), or
LTC (= time code), or one timer out of A – F.
Display
Format
Select the display format → chapter “Display Formats“.
Delimiter Select the separating sign → chapter “Separating Signs“.
Mode
Select the operating mode.
Offset
Entry a time as a preset/offset/event value, depending on operating mode.
Leading zeros
Display of leading zeros on/off → chapter “Leading Zeros“.
Flash if negative
Flashing of negative values on/off → chapter “Flashing of
Negative Values “.
Leading zeros at zero
Display of leading zeros at zero transition on/off → chapter
“Leading Zeros at Zero Transition“.
Down counter overflow to negative
A down-counting stop timer can stop at zero
(check box deactivated) or can continue to count across negative values
(check box activated) → chapter “Down-Stop or Down-Overflow“.
Color
UD Series displays offer tri-colour LEDs. A colour can be assigned to a timer;
at the display’s configuration select “Color = Auto“.
Mode
At certain events a change of the colour can be programmed.
→ Chapter “Colour of LED Displays“
Programming by function keys at control units:
Programmable keys at MTD control units can receive a function which enables changing some
display status directly (→ chapter “Programming of Function Keys”).
The MTD System
Page 38
Programming with an installation mode at control units:
TCU, TCU H1and MTD BE control units as well as “BD...“ displays of the former MTD Series
offer an installation mode: Simultaneously press keys 9 and 3, then the display switches to:
Timer mode:
Select with
keys +/Display formats: Change with keys 1...8
Flashing of negative: Change with key RESET
DOWN Overflow: Change with key STOP
Separating Signs: Change with key 0
Leading zeros at zero: Change with key START
Leading zeros: Change with key "LEAD ZEROS" (TCU) or HOLD (MTD BE)
The + and – keys are used to switch to the next timer mode. Each timer can get its own display
format.
Key
Function
LEAD
Leading zeros on/off (1/0)
ZEROS
or
HOLD
START Leading zeros at zero transition on/off (1/0)
0
Separating sign: Colon/decimal point/space
STOP
RESET
1
2
3
4
5
6
7
8
Overflow (across negative values) when DOWN on/off (1/0)
Flashing of negative values on/off (1/0)
Display format 1 = HH:MM:SS (Hours/Minutes/Seconds)
or TT.MM.JJ (Day/Month/Year)
Display format 2 = MM MM:SS (Minutes 4-digit/Seconds)
or MM.TT.JJ (Month/Day/Year)
Display format 3 = SS SS SS (Seconds 6-digit)
or JJ.MM.TT (Year/Month/Day)
Display format 4 = MM:SS:FF (Minutes/Seconds/Frames)
Display format 5 = MM:SS.Z (Minutes/Seconds/Tenths of seconds)
Display format 6 = SS SS.Z (Seconds 4-digit/Tenths of seconds)
Display format 7 = HH:MM:SS (real-time in 24-hours format)
Display format 8 = HH:MM:SS (real-time in 12-hours format)
available for
Real-time, date,
TC time, A – F
A–F
Real-time, date,
TC time, A – F
A–F
A–F
Date,
TC time, A – F
Date,
A–F
Date,
A–F
TC time, A – F
A–F
A–F
Real-time, A – F
Real-time, A – F
All features can be assigned to the local stop timer of a control unit as well.
Simultaneously pressing keys 9 and 3 again will complete this installation. All modifications are
permanently stored at the central generator.
The MTD System
Page 39
Leading Zeros
The “leading zeros” of a time or date display can be switched on or off. This feature can be
assigned to real-time, date, TC time, timers A – F, and local stop timer of a control unit.
Remark: The function „leading zeros at zero transition“ selected for a down-counting stop timer
has no effect if „leading zeros on“ has been selected.
Example
Date
Real-time
Display formats HH:MM:SS (1)
or MM MM:SS (2) or SS SS SS (3)
Display format MM:SS:FF (4)
Display format MM:SS.Z (5)
Leading zeros OFF (= 0)
1.01.10
0.00.00
0
Leading zeros ON (= 1)
01.01.10
00.00.00
00:00:00
0:00
0.0
00:00:00
00:00.0
A function key programmed with the “leading zeros on/off” (75) function can directly change
this display format (→ chapter “Programming of Function Keys”). If the key has a lamp, the
current selected format is indicated: Lamp lights up = “leading zeros” ON. Pressing this key will
immediately change the display format of the current mode.
Leading Zeros at Zero Transition
This feature can be assigned to the timers A – F and to the local stop timer of a control unit. It
only has an effect during a DOWN function, if the feature “leading zeros” has been set to OFF,
because the leading zeros will be switched on for one second at a zero transition.
If the stop timer operates in the DOWN-STOP mode, the “leading zeros at zero transition“
feature indicates an elapsed time:
Display format HH:MM:SS Display format MM:SS:FF Display format MM:SS.Z
3
0:03
0.3
2
0:02
0.2
1
0:01
0.1
00:00:00
00:00:00
00:00.0
If the stop timer operates in the DOWN-OVERFLOW mode, the “leading zeros at zero
transition“ feature indicates the second before counting across negative values:
Display format HH:MM:SS Display format MM:SS:FF Display format MM:SS.Z
3
1:01
1.1
2
1:00
1.0
1
00:00:24
00:00.9
00:00:00
00:00:23
00:00.8
-1
etc.
etc.
-2
00:00:00
00:00.0
-3
-0:01
-0.1
A function key programmed with the “leading zeros at zero transition on/off” (76) function can
directly change this display format (→ chapter “Programming of Function Keys”). If the key has
a lamp, the current format is indicated: Lamp lights up = “leading zeros at zero transition” ON.
Pressing this key will immediately change the display format of the current mode.
The MTD System
Page 40
Down-Stop or Down-Overflow
A down-counting stop timer can stop counting at zero (function DOWN-OVERFLOW is switched
off = DOWN-STOP mode) or continue counting across negative values (DOWN-OVERFLOW
mode). This feature can be assigned to the timers A – F and to the local stop timer of a control
unit.
A function key programmed with the “overflow when DOWN on/off” (77) function can directly
change this mode (→ chapter “Programming of Function Keys”). If the key has a lamp, the
current mode is indicated: Lamp lights up = “overflow when DOWN” ON. Pressing this key will
immediately change the counter mode of the selected timer.
Flashing of Negative Values
Negative numbers are accessible with a down-counting stop timer in the DOWN-OVERFLOW
mode, in the DIFF TIME mode, or in the DIFF TC mode. In addition to the minus sign which
always precedes a negative number, a flashing of the digits can indicate negative numbers
(frequency 1 Hz approximately). This feature can be assigned to the timers A – F and to the
local stop timer of a control unit.
A function key programmed with the “flashing of negative values on/off” (78) function can
directly change this mode (→ chapter “Programming of Function Keys”). If the key has a lamp,
the current mode is indicated: Lamp lights up = “flashing of negative values” ON. Pressing this
key will immediately change the counter mode of the selected timer.
Separating Sign
A sign to separate Hours/Minutes, Minutes/Seconds, Seconds/Frames of a time display and
Day/Month/Year of a date display can be selected. The tenths of a second are always
separated by a decimal point. This feature can be assigned to the real-time, date, TC time,
timers A – F and to the local stop timer of a control unit.
Separating Sign
:
.
Description
Colons
Decimal points
Space
Examples
21:55:16; 15:16.0; 21:05:97
21.55.16; 15.16.0; 21.05.97
21 55 16; 15 16.0; 21 05 97
The MTD System
Page 41
Display Formats
There are eight different display formats provided for the various time and date modes. Each
mode can receive its own display format.
The following settings may be selected for timers A, B, C, D, E, F and for the local stop timer of
a control unit:
Format
1 = HH:MM:SS
2 = MM MM:SS
3 = SS SS SS
4 = MM:SS:FF
5 = MM:SS.Z
6 = SS SS.Z
7 = HH:MM:SS
8 = HH:MM:SS
Description
Hours/Minutes/Seconds
Minutes (4-digits)/Seconds
Seconds (6-digits)
Minutes/Seconds/Frames. Depending on the frame rate of the
time code of the central generator, frames count 00...24 or
00...29. Minutes count 00…59.
Minutes/Seconds/Tenths of seconds, the tenths are always
separated by the decimal point. Minutes count 00…99.
Seconds (4-digits)/Tenths of seconds, the tenths are always
separated by the decimal point.
Real-time in 24-hours format, i.e. always positive time with at
least 5 digits (i.e. any leading zeros refer only to the hours).
This is not applicable to stop timer modes, but for a real-time
or for OFFSET TIME.
Real-time as described at number 7, but in a 12-hours format.
Time is displayed according to the American AM/PM
representation, see *1.
Example
21:55:16
13 15:16
07 89 16
55:16:00
15:16.0
89 16.0
21:55:16
09:55:16
The following settings may be selected for the MTD real-time mode:
Format
7 = HH:MM:SS
8 = HH:MM:SS
Description
Real-time in 24-hours format, i.e. always positive time with at
least 5 digits (i.e. any leading zeros refer only to the hours).
This is not applicable to stop timer modes, but for a real-time
or for OFFSET TIME.
Real-time as described at number 7, but in a 12-hours format.
Time is displayed according to the American AM/PM
representation, see *1.
Example
21:55:16
09:55:16
The following settings may be selected for the MTD date mode:
Format
1 = TT.MM.JJ
2 = MM.TT.JJ
3 = JJ.MM.TT
Description
Day/Month/Year
Month/Day/Year
Year/Month/Day
Example
21.05.97
5.21.97
97.05.21
The following settings may be selected for the time of the time code reader:
Format
1 = HH:MM:SS
4 = MM:SS:FF
Description
Hours/Minutes/Seconds
Minutes/Seconds/Frames. Depending on the frame rate of the
time code of the central generator, frames count 00...24 or
00...29. Minutes count 00…59.
Example
21:55:16
55:16:00
The MTD System
Page 42
*1: Converting from 24 hour representation to AM/PM 12 hours:
Range (HH:MM) of
24 hour clock
00:00 – 00:59
01:00 – 11:59
12:00 – 12:59
13:00 – 23:59
Conversion
Examples
add 12:00 00:00  12:00 (midnight)
00:15  12:15 (AM)
00:30  12:30 (AM)
00:59  12:59 (AM)
straight conversion 01:00  01:00 (AM)
to AM 04:15  04:15 (AM)
08:30  08:30 (AM)
11:59  11:59 (AM)
straight conversion 12:00  12:00 (noon)
to PM 12:15  12:15 (PM)
12:30  12:30 (PM)
12:59  12:59 (PM)
subtract 12:00 13:00  01:00 (PM)
18:15  06:15 (PM)
20:30  08:30 (PM)
23:59  11:59 (PM)
The MTD System
Page 43
"ALL" Function Key
The ALL function allows simultaneous operation of all timers A, B, C, D, E and F.
A function key programmed with the ALL (04) function, directly switches on or off this mode (→
chapter “Programming of Function Keys”). If the function key has a lamp, this lamp lights up as
long as the ALL function is enabled.
ALL affects those timers A, B, C, D, E and F, which are also operable. This is defined in the
installation of the Access Rights, which is an installation feature of the control unit (→ chapter
“The Access Rights”). ALL is a feature of the control unit, not a feature of the central generator.
ALL permits simultaneous activation of the following functions for the operable timers:

HOLD, START, STOP, RESET.

STOP + RESET (display shut-off feature).

Transfer of a preset value with UP or DOWN key.

Transfer of an offset with OFFSET TIME or OFFSET TC key.

Transfer of an event time with DIFF TIME or DIFF TC key.
The MTD System
Page 44
Main Times
The “Main Time“ feature enables a remote control of MTD displays. There are three main times
provided, therefore three groups of MTD displays can be controlled independently. Within one
group all displays show the same time. These groups are within one MTD system of one central
MTD generator, not to mix up with MTD groups defined by different MTD generators of an
MTDoE system.
The displays will be setup to mode 1st main time or 2nd main time or 3rd main time.
The time of a “Main Time” can be one of the following eight:
Real-Time, Date, Timer A, Timer B, Timer C, Timer D, Timer E, Timer F.
Now, any control unit can select the time of a “Main Time”. The following functions are
provided for a key or GPI of a control unit (→ chapter “Programming of Function Keys”):
MAIN1 = Time
MAIN1 = Date
MAIN1 = Timer A
MAIN1 = Timer B
MAIN1 = Timer C
MAIN1 = Timer D
MAIN1 = Timer E
MAIN1 = Timer F
Example:
MAIN2 = Time
MAIN2 = Date
MAIN2 = Timer A
MAIN2 = Timer B
MAIN2 = Timer C
MAIN2 = Timer D
MAIN2 = Timer E
MAIN2 = Timer F
MAIN3 = Time
MAIN3 = Date
MAIN3 = Timer A
MAIN3 = Timer B
MAIN3 = Timer C
MAIN3 = Timer D
MAIN3 = Timer E
MAIN3 = Timer F
Function key F1 programmed to “MAIN1 = Time“.
Function key F2 programmed to „MAIN1 = Timer A“.
A group of displays has been set to mode 1st main time.
Pressing key F1 → All displays of this group are showing the real-time.
Pressing key F2 → All displays of this group are showing timer A.
Alternatively it is possible to define the ”Main Time” by configuration of the central generator:
MTD Generate tab:
Select out of a dropdown list.
The MTD System
Page 45
Time Table
This function is an extended option of a control unit to enter values for the timers A – F. Any
value may be a preset, offset or event value, depending on the operating mode of the timer.
The time table offers up to 60 time values, used in common by timers A – F. The table will be
permanently stored at the control unit.
One of the function keys has to be assigned to TIME TABLE (09) (→ chapter “Programming of
Function Keys”).
The TIME TABLE function key switches between normal operating mode and time table mode,
provided that one of the timers A – F has been selected. During time table mode, the function
key lights up.
During time table mode, the display indicates the currently stored time and the location within
the time table. The time table may be stepped through by using + and - keys.
To add times to the table or to modify them, select the desired location number via the + or key and enter a time using the keys 0 ... 9. Then press the +, - or START button to store the
entered time. If the selected timer (A – F) is assigned to a DOWN function, the START button will
also preset the timer with this time table value and start down-counting.
If time values shall be entered without affecting the stop timer, please only use the + or - keys
for storage. The START key may be used for storage, if time values shall be entered during a
first production. This way you operate with the DOWN function and simultaneously fill the time
table. You can now easily recall the preset values in case you have to repeat the production
process.
The RESET key does not affect the time table, but the current timer function!
Examples for time A, preset values at the time table: 1=1:00:00, 2=2:00:00, 3=3:00:00:
Timer A while in the UP function
Select location 1=1:00:00
UP  time A indicates 1:00:00
START  time A counts up
Select location 2=2:00:00
UP  time A counts up from 2:00:00
Select location 3=3:00:00
START  no function, time A continues to
count upward
Timer A while in the DOWN function
Select location 1=1:00:00
START  time A counts down from 1:00:00
Select location 2=2:00:00
DOWN  time A counts down from 2:00:00
Select location 3=3:00:00
START  time A counts down from 3:00:00
The example for timer A in the UP function is also valid for an offset or difference function.
The MTD System
Page 46
Time Calculator
The time calculator can add and subtract times (= Hours:Minutes:Seconds). This permits e.g. to
add up the duration of individual takes calculating the total program length, or to calculate a
remainder of time from the remaining program time (end of the program minus the current
time minus the duration of the individual takes).
The time calculator is part of an MTD control unit (e.g. TCU, TCUE, SPT ...).
One of the function keys has to be assigned to CALCULATOR (28) (→ chapter “Programming
of Function Keys”).
The lamp in the CALCULATOR function key lights up as long as the calculator is selected. Any
current stop timer operating modes will not be affected by the use of the time calculator. The
time calculator is only operating local at the control unit.
The following functions keys are provided for the time calculator:
Key
0 ... 9
+/STOP
RESET
HOLD, START
CALCULATOR
F1, F2, ...
Function
Entry of a time
Defines the next arithmetic operation
Deletes only the last entry
Delete all entries and operations
No function
The CALCULATOR function key deactivates the time calculator function.
Function keys assigned to
UP (01), DOWN (02), DUE (03), ALL (04), OFFSET TIME (05), OFFSET TC
(06), DIFF TIME (07), DIFF TC (08), DUE NEXT (27),
deactivate the time calculator, but supply the result of the last operation
as a new preset value. This permits e.g. direct starting a stop timer in the
DOWN function.
All other function keys will execute the corresponding function, the time
calculator stays switched on.
Example:
Key
Function
Display
0 ... 9
+
Entry of a time
Defines the next arithmetic operation to be an addition:
If required, the previous entry is converted into a reasonable time
(please refer to chapter “Entry of Time ...“). Any operation which
has not been carried out up to that moment will now be performed.
Entry of a time
Defines the next arithmetic operation to be a subtraction:
If required, the previous entry is converted into a reasonable time
(please refer to chapter “Entry of Time ...“). Any operation which
has not been carried out up to that moment will now be performed.
Entry of a time
Deletes only the last entry
Entry of a time
Carries out the last operation and shows the result
Delete all entries and operations
99
1:39
0 ... 9
-
0 ... 9
STOP
0 ... 9
+
RESET
10
1:49
34
0
35
1:14
0
The MTD System
Page 47
Beeper: Function and Programming
Any control unit has a beeper integrated. The beeper operates only local at this control unit.
The beeper function can be assigned to one of the timers: real-time, TC time, timers A – F, and
local stop timer of the control unit. The beeper function can be enabled and disabled. The
beeper sounds shortly, if the following conditions are all fulfilled:


The beeper function is enabled.
The selected timer is (up- or down-) counting and matches the programmed event time.
To program and operate the beeper, function keys may be assigned to the BEEP PGM
(programming, 50) and BEEP ON/OFF (51) function.
Programming the beeper can also be done utilizing the configuration tool of the control unit.
Please refer to the manual of the unit for an installation guide.
Programming by function keys:
Key
BEEP PGM
BEEP ON/OFF
START
STOP
0 ... 9
RESET
TIMER A ...
TIMER F
any other
function key
BEEP PGM

Function
Activates the programming mode, lamp of the key lights up.
Enables/disables beeper function, lamp of the key indicates the current state.
Enables the beeper function.
Disables the beeper function.
Enters the event time, enables the beeper function.
Resets the event time, disables the beeper function.
Any function key programmed to switch the display mode (→ chapter
“Programming of Function Keys”): Assigns the beeper function to this timer.
Assigns the beeper function to the current selected timer.
Quits the programming mode, all changes will be stored, lamp of the key
goes out.
The BEEP ON/OFF function key becomes unnecessary, if the beeper function should not be
changed since last programming. The START and STOP keys used during BEEP PGM
function may replace the function of BEEP ON/OFF.
The MTD System
Page 48
Display Shut-Off
The display of the control unit may be set to a shut-off mode together with all displays of the
timer system which are set to the same mode (displaying the same timer). Shut-off means: The
display will switch off showing only one decimal point. This can be applied to the timers A – F. If
for example the stop timer D is not required for a production, and all displays set to time D
should be temporarily deactivated, select mode D on the control unit and simultaneously press
the keys STOP and RESET.
The displays are switched on again by pressing the RESET key, and automatically as soon as
any timer value changes, for example after pressing the START button.
Do not press the STOP and RESET key while the stop timer is running, because this will abort the
current function of the timer!
The MTD System
Page 49
Stop Timer Operating Modes
Local Stop Timer
The display of an MTD control unit may also serve as a local stop timer. The time of the local
stop timer is displayed only at the control unit. There is no communication with the central MTD
generator. There is a special display mode provided to display the local stop timer at the
control unit.
The following display formats and functions are available:






Leading zeros on/off.
Leading zeros on zero transition on/off.
DOWN function as DOWN-STOP (stop at zero) or DOWN-OVERFLOW.
Flashing of negative values on/off.
Separating sign between Hours/Minutes/Seconds = colon, decimal point or space.
Display formats: 1 = HH:MM:SS (stop timer)
2 = MM MM:SS
3 = SS SS SS
4 = MM:SS:FF
5 = MM:SS.Z
6 = SS SS.Z
7 = HH:MM:SS (24-hours format real-time)
8 = HH:MM:SS (12-hours format real-time)
Chapter “Configuration of Display Formats and DOWN Modes” describes these set-ups.
A preset value can be set using keys 0...9. This value is always a positive number (< 24 hours)
and will be converted into a reasonable time, if required (please refer to chapter “Entry of Time
as a Preset ...“).

If the START key is pressed after entry of a preset value = 0, the stop timer will be
automatically defined to count UP.

If the START key is pressed after entry of a preset value > 0, the stop timer will be
automatically defined to count DOWN.

If a function key is assigned to UP, the stop timer may as well count upwards with a preset
value > 0, if the UP function key is pressed before the START key.

DOWN function with a preset value = 0 is not provided.
The START, STOP, HOLD and RESET keys have the usual functions:
START
The stop timer counts up or down. The HOLD function is deactivated.
STOP
The stop timer stops. The HOLD function is deactivated.
HOLD
The current display freezes, the timer continues counting internally. Press HOLD
again to update the time display.
RESET
The stop timer stops and is set to 0.
A control unit of the LTC(MTD) system offers the OFFSET TIME and DIFF TIME functions for the
local stop timer if an LTC(MTD) has been connected.
The MTD System
Page 50
Timer A, B, C, D, E, F
The A, B, C, D, E, F timers are encoded in the MTD data. Any MTD device, displaying or
operating these timers, has to be connected to the central MTD generator.
The following display formats and functions are available:






Leading zeros on/off.
Leading zeros on zero transition on/off.
DOWN function as DOWN-STOP (stop at zero) or DOWN-OVERFLOW.
Flashing of negative values on/off.
Separating sign between Hours/Minutes/Seconds = colon, decimal point or space.
Display formats: 1 = HH:MM:SS (stop timer)
2 = MM MM:SS
3 = SS SS SS
4 = MM:SS:FF
5 = MM:SS.Z
6 = SS SS.Z
7 = HH:MM:SS (24-hours format real-time)
8 = HH:MM:SS (12-hours format real-time)
Chapter “Configuration of Display Formats and DOWN Modes” describes these set-ups.
The individual timers operate independently of each other (except during a DUE function), and
can receive one of the following functions:
UP
DOWN
DUE/DUE TC
OFFSET TIME
OFFSET TC
DIFF TIME
DIFF TC
Up-counting stop timer.
Down-counting stop timer, with a stop at zero or with an “overflow“ across
negative values.
Stop timer combination DOWN/UP/END (also DUE-NEXT).
Up-counting time = real-time + a fixed time offset.
VTR time code + a fixed time offset.
Time difference = fixed event time - real-time, e.g. down-counting to indicate
the remaining time of a television program.
Time difference = fixed event time - VTR time code, e.g. down-counting to
indicate the remaining time of a take.
Direct operation is possible assigning these functions to function keys (→ chapter
“Programming of Function Keys”).
Switching the operating mode is only possible after pressing the STOP or RESET key, e.g.
changing from UP to DOWN mode requires pressing the STOP or RESET key. It is
recommended to use the RESET key to cancel a timer operation, as a time > 0 mostly remains
at the display after pressing the STOP key, and this may be treated unintentionally as a preset
value.
All details regarding these functions are described in the corresponding chapters.
 Please also refer to chapter “Error Messages“.
The MTD System
Page 51
UP Stop Timer Function
This function may be assigned to timers A, B, C, D, E and F in any combination (please also
refer to the ALL function). The UP function sets a stop timer into an up-counting operating
mode. The timer counts in an HH:MM:SS time format (< 24 hours). Operating is possible with
the following keys and functions:
HOLD
The current display freezes, the timer continues counting internally. Press
HOLD again to update the time display.
START
Timer counts up. The HOLD function is deactivated.
STOP
Timer stops counting. The HOLD function is deactivated.
RESET
Timer stops counting and is set to 0.
START/STOP
START/STOP alternating.
RESET+START
Timer starts counting from 0.
RESET CONT
RESET, if timer stays in stop mode, else RESET+START.
OFFSET+
Correct the time of a running timer: Enter a correction value, then press
“OFFSET+” to add this value to the running time.
OFFSET–
Correct the time of a running timer: Enter a correction value, then press
“OFFSET–“ to subtract this value from the running time.
If this stop timer function is exclusively used for a preset value = 0, no UP function key has to
be defined. Press the RESET key (to cancel any other mode) and then press the START key, this
automatically will select the UP timer operating mode.
Counting from a preset value > 0 requires one of the function keys to be assigned to UP (01)
(→ chapter “Programming of Function Keys”).
The lamp of the UP function key lights up as long as the timer stays in the UP operating mode.
A preset value can be set using keys 0...9. This value is always a positive number (< 24 hours)
and will be converted into a reasonable time, if required (please refer to chapter “Entry of Time
as a Preset ...“). The entry will be displayed only on the local display of the control unit. It is not
possible to set frames or tenths of seconds. Pressing the UP key will transmit the preset value to
the central generator, so that it is indicated on all connected displays of the MTD system which
are set to the same timer (e.g. timer A).
After STOP, the timer starts to count by pressing the START key. It is also possible to start the
timer "on the fly": enter a preset value while the timer is running and set the timer to the new
preset value pressing the UP key.
You have to press STOP or RESET before you can change the timer mode, e.g. switch to DOWN
(except using the DOWN START function).
PRESET function: The control unit stores the preset value last set with the UP key - as long as this
unit will not be switched off. Every time pressing the UP key will set the timer to this preset value
again. A running timer will then start again with the last preset value.
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DOWN and DOWN START Stop Timer Function
This function may be assigned to timers A, B, C, D, E and F in any combination (please also
refer to the ALL function). The DOWN function sets a stop timer into a down-counting operating
mode. The timer counts in an HH:MM:SS time format (< 24 hours). Operating is possible with
the following keys and functions:
HOLD
The current display freezes, the timer continues counting internally. Press
HOLD again to update the time display.
START
Timer counts down. The HOLD function is deactivated.
STOP
Timer stops counting. The HOLD function is deactivated.
RESET
Timer stops counting and is set to 0.
START/STOP
START/STOP alternating.
OFFSET+
Correct the time of a running timer: Enter a correction value, then press
“OFFSET+” to add this value to the running time.
OFFSET–
Correct the time of a running timer: Enter a correction value, then press
“OFFSET–“ to subtract this value from the running time.
This stop timer function is exclusively defined for a preset value > 0, a preset value = 0 is
considered as an unintended operation and will force the stop timer to count upwards. To start
DOWN, it is not necessary to define a DOWN function key. Press the RESET key (to cancel any
other mode) and enter a preset value by using keys 0...9, then press the START key: This
automatically will select the DOWN timer operating mode.
However, if a DOWN function key shall be assigned, e.g. to identify the active function with a
lamp, one of the function keys has to be assigned to DOWN (02) or DOWN START (91) (→
chapter “Programming of Function Keys”).
The lamp of the DOWN function key lights up as long as the timer stays in the DOWN
operating mode.
A preset value can be set using keys 0...9. This value is always a positive number (< 24 hours)
and will be converted into a reasonable time, if required (please refer to chapter “Entry of Time
as a Preset ...“). The entry will be displayed only on the local display of the control unit. It is not
possible to set frames or tenths of seconds. Pressing the DOWN key will transmit the preset
value to the central generator, so that it is indicated on all connected displays of the MTD
system which are set to the same timer (e.g. timer A). It is also possible to use the START key,
this presets and immediately starts the timer.
After STOP, the timer starts to count by pressing the START key. It is also possible to start the
timer "on the fly": enter a preset value while the timer is running and set the timer to the new
preset value pressing the DOWN or START key.
You have to press STOP or RESET before you can change the timer mode, e.g. switch to UP.
Only the DOWN START function key allows switching from UP to DOWN directly.
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The DOWN operating mode may be selected as DOWN-STOP or DOWN-OVERFLOW (→
chapter “Configuration of Display Formats and DOWN Modes):
DOWN-STOP: The down-counting time always has positive numbers. The counting stops
reaching zero. Activating the "leading zeros at zero transition" function, the display switches on
all leading zeros (00:00:00) for approx. one second as soon as the counter reaches zero.
DOWN-OVERFLOW: After zero transition, the time continues counting with negative values.
The most significant digit is replaced by a minus sign (if this digit is <>0, it will be overwritten
by the minus sign). Activating the “flashing of negative values“ function, negative values will
additionally indicated by a flashing (frequency 1 Hz approximately). Activating the “leading
zeros at zero transition“ function, all leading zeros (00:00:00) will be displayed at zero
transition.
PRESET function: The control unit stores the preset value last set with the DOWN key - as long
as this unit will not be switched off. Every time pressing the DOWN key will set the timer to this
preset value again. A running timer will then start again with the last preset value.
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DUE: Combination Down/Up/End with Real-Time
This function may be assigned to the timers B, C, D, E and F. The DUE stop timer function
causes one timer to count DOWN, one timer to count UP, and one timer to display the END
time. If DUE is e.g. assigned to timer E, E will count DOWN, D will count UP, and C will display
END. If DUE is e.g. assigned to time B, B will count DOWN, A will count UP, and END is not
available.
No more than two DUE functions can be assigned at the same time: B and E, B and F, C and F.
END is that moment of the real-time at which the DOWN stop timer reaches zero. END is
calculated by adding the preset value of DOWN to the real time. When transmitting the preset
value by pressing the DUE key, END will count upwards = “real-time + preset value”. By
pressing the START key the value of the real-time is stored (= start time). Now END will freeze
at a value equal to “start time + preset value”. As soon as DOWN reaches zero, END starts
flashing.
Example:
Keys
RESET
0...9
DUE
START (e.g.:
real-time =
16:00:00)
Function
Resets the current timer
Enter a preset value,
e.g. 1:00
Transfer of the preset
value
Timers start counting,
fixed END time
DOWN has reached 0
DOWN
UP
END
0
0
0
1:00
0
Counting
down
Counting
up
Counting up:
real-time + 1:00
Fixed value = start time
+ 1:00 (e.g.: 16:01:00)
0 or negative
Counting
up
Fixed value (16:01:00),
flashing
This stop timer function is exclusively defined for a preset value > 0, a preset value = 0 is
considered as an unintended operation and will be rejected.
Pressing the STOP key will cancel the function, no re-start option is provided for END.
One of the function keys has to be assigned to DUE (03) (→ chapter “Programming of
Function Keys”).
The lamp of the DUE function key will light up as long as the DUE function is enabled.
If a function key is assigned to ALL, the ALL function must be disabled.
A preset value can be set using keys 0...9. This value is always a positive number (< 24 hours)
and will be converted into a reasonable time, if required (please refer to chapter “Entry of Time
as a Preset ...“). The entry will be displayed only on the local display of the control unit. It is not
possible to set frames or tenths of seconds. Pressing the DUE key will transmit the preset value
to the central generator, so that it is indicated on all connected displays of the MTD system
which are set to the same timer (e.g. timer C).
The DOWN function may be programmed as DOWN-STOP or DOWN-OVERFLOW.
You have to press RESET before you can change the timer operating mode.
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DUE NEXT: Combination Down/Up/End with Time Table
The DUE NEXT function is identical to the DUE function, if DUE NEXT is not activated in the
time table mode. Please refer to the description of the DUE function.
The DUE NEXT function - if activated in the time table mode - sets the timer following the
DOWN timer (in the sequence A to F) to the next preset value of the time table.
If the time table is activated and DUE NEXT is assigned to timer C (A = END, B = UP, C =
DOWN), timer D will be defined as NEXT. As the NEXT value acts like a preset value, please
once press the RESET key at this timer mode (mode D in our example) before selecting the DUE
NEXT function; this cancels all other operating modes of this timer, the timer now is free to
accept preset values.
Example: Time table filled with 1 = 1:00, 2 = 2:00, 3 = 3:00
Action
Select location 1 of the time table
Press the DUE NEXT key
Press the START key
Select location 2 of the time table
Press the DUE NEXT key
DOWN timer
NEXT timer
1:00
counting down
counting down
2:00
2:00
2:00
2:00
3:00
One of the function keys has to be assigned to DUE NEXT (27) (→ chapter “Programming of
Function Keys”).
The lamp of the DUE NEXT function key will light up as long as the DUE NEXT function is
enabled.
If a function key is assigned to ALL, the ALL function must be disabled.
All what applies to the DUE function does also apply to the DUE NEXT function.
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SET NEXT and NEXT DUE: Extensions of DUE Functions
The SET NEXT feature treats the content of the entry (see below) of a control unit as a preset
value for that timer following the current timer (in the sequence A to F).
Example: Timer C is currently selected. At the control unit enter manually a time = 34:21, then
press the SET NEXT key. 34:21 will become a preset value of timer D. Timer C will be
left unchanged.
The control unit either displays the current time of a stop timer or - having pressed one of the
keys 0...9 - a preset or event time. The last preset value remains in an entry memory, even if
the display switches to the current time of a stop timer. SET NEXT transfers the content of this
entry memory.
One of the function keys has to be assigned to SET NEXT (29) (→ chapter “Programming of
Function Keys”).
The NEXT DUE function is identical to the DUE function except the following feature: The
DOWN timer receives its preset value not from the value of the entry memory of the control
unit, but from the value of the timer following the current timer (in the sequence A to F). Please
also refer to the description of the DUE function.
Example: Timer C is currently selected. The DUE function (DOWN/UP/END) uses timer C as
DOWN, timer B as UP, timer A = END. Timer D may have the fixed value 34:21
(e.g. set by the SET NEXT function key). Now pressing the NEXT DUE function key,
timer C will be set to 34:21 and will be defined as a DOWN counter, timer B and A
will be defined according to the DUE function.
One of the function keys has to be assigned to NEXT DUE (30) (→ chapter “Programming of
Function Keys”).
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Real-Time Operating Modes
MTD Real-Time and Date
MTD real-time and date are encoded in the MTD data. Any MTD unit, displaying or operating
MTD real-time or date, has to be connected to the central MTD generator. There are special
display modes provided to display MTD real-time and date at MTD units.
The following display formats are provided for the real-time:



Leading zeros (of the hours) on/off.
Separating sign between Hours/Minutes/Seconds = colon, decimal point or space.
Display formats: 7 = HH:MM:SS (24-hours format)
8 = HH:MM:SS (12-hours format)
The following display formats are provided for the date:



Leading zeros on/off, this concerns the first (leading) figure of the date - Day, Month or
Year - according to the selected display format.
Separating sign between Day/Month/Year = colon, decimal point or space.
Display formats: 1 = TT/MM/JJ
2 = MM/TT/JJ
3 = JJ/MM/TT.
Chapter “Configuration of Display Formats and DOWN Modes” describes these set-ups.
Set time or date
If enabled by configuration of the Access Rights it is possible to set time and date.
Attention: Altering time or date will alter the most important parameters of the
system. Therefore it is strongly recommended to set the access rights to
“Display“ or “Off“ in order to avoid unintentional operating.
During normal operating mode the central MTD generator always outputs
a correct time. If this is not true the cause of this failure should be found
and cleared.
Time and date can be set using keys 0...9. This value is always a positive number and will
be converted into a reasonable time, if required (please refer to chapter “Entry of Time as
a Preset ...“). The entry will be displayed only on the local display of the control unit. It is
not possible to set frames or tenths of seconds. Pressing the START or UP key will transfer
the entry to the central generator. The entry of a preset value can be cancelled by using
the RESET or + or – key.
Note:
The central generator may be in a state which does not allow a manual setting of the internal
clock. In this case the entry will be ignored or an error message will be returned.
 Please also refer to chapter “Error Messages“.
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OFFSET TIME = Offset + Real-Time
This operating mode may be assigned to timers A, B, C, D, E and F in any combination (please
also refer to the ALL function). The OFFSET TIME operating mode shows the result of the
calculation “offset + real-time“, which is a positive value within the range of 0 to 23:59:59,
counting upwards. Application could be to simply program a time of a time zone, or - with
offset = 0 - to switch displays of the MTD system to a real-time display without switching the
display mode.
One of the function keys has to be assigned to OFFSET TIME (05) (→ chapter “Programming
of Function Keys”).
The lamp of the OFFSET TIME function key will light up as long as the OFFSET TIME function is
enabled.
An offset value can be set using keys 0...9. This value is always a positive number (< 24 hours)
and will be converted into a reasonable time, if required (please refer to chapter “Entry of Time
as a Preset ...“). The entry will be displayed only on the local display of the control unit. It is not
possible to set frames or tenths of seconds. Pressing the OFFSET TIME key will transmit the
offset value to the central generator, so all connected displays of the MTD system set to the
same timer (e.g. timer A) can now display “offset + real-time“.
The HOLD, START, STOP and RESET keys have the following functions:
HOLD
Current display freezes, the clock continues counting internally. Press HOLD again to
update the displayed time.
START
The HOLD function is deactivated.
STOP
The OFFSET TIME function is deactivated.
RESET
The OFFSET TIME function is deactivated and the displays are reset to 0.
You have to press STOP or RESET before you can change the timer mode, e.g. switch to UP.
Remarks:

After pressing the STOP key, the currently displayed value will be frozen. If the OFFSET TIME
function key is pressed again, the currently displayed value is transmitted as an offset value,
and a new result “offset + real-time “ is calculated! Therefore please use the RESET key to
complete this function.

After pressing the STOP key followed by START: time counts upward in the UP function!
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DIFF TIME = Difference Event Time – Real-Time
This operating mode may be assigned to timers A, B, C, D, E and F in any combination (please
also refer to the ALL function). The DIFF TIME operating mode shows the result of the
subtraction “event time – real-time“, a time which always counts down and continues counting
across negative values after zero transition. As long as the value is positive, it shows the time
remaining up to the event time. If it is negative, it shows the time elapsed since the event time.
Once this value has become negative, it will remain negative until a new event time is entered.
One of the function keys has to be assigned to DIFF TIME (07) (→ chapter “Programming of
Function Keys”).
The lamp of the DIFF TIME function key will light up as long as the DIFF TIME function is
enabled.
An event time can be set using keys 0...9. This value is always a positive number (< 24 hours)
and will be converted into a reasonable time, if required (please refer to chapter “Entry of Time
as a Preset ...“). The entry will be displayed only on the local display of the control unit. It is not
possible to set frames or tenths of seconds. Pressing the DIFF TIME key will transmit the event
time to the central generator, so all connected displays of the MTD system set to the same timer
(e.g. timer A) can now display “event time – real-time “.
The HOLD, START, STOP and RESET keys have the following functions:
HOLD
Current display freezes, the clock continues counting internally. Press HOLD again to
update the displayed time.
START
The HOLD function is deactivated.
STOP
The DIFF TIME function is deactivated.
RESET
The DIFF TIME function is deactivated and the displays are reset to 0.
You have to press STOP or RESET before you can change the timer mode, e.g. switch to UP.
Remarks:

After pressing the STOP key, the currently displayed value will be frozen. If the DIFF TIME
function key is pressed again, the currently displayed value is transmitted as an event time.
This applies in the same way after pressing the RESET key (displayed value = 0) followed by
the DIFF TIME key, i.e. „0 – real-time“ will be calculated and displayed. To obtain a useful
result, the correct event time must be displayed before pressing the DIFF TIME key!

After pressing the STOP or RESET key followed by START, the time will count down or up,
but now in the DOWN or UP operating mode!
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Timecode Operating Modes
Two different time codes are handled within the MTD system:
 The time code, generated from the central generator of the MTD system = Time Code.
 Time code, read from the central generator of the MTD system = VTR LTC.
Input LTC_IN at RUB GT, input REF_IN at RUB GL.
Time of the Time Code
The central generator of the MTD system works as a master time code generator. In most
applications, the time of the generated time code corresponds to the local real time.
 MTD units of the LTC(MTD)/RS485(MTD) system are equipped with an LTC reader. As soon
as any LTC has been connected, the time addresses of the LTC can be displayed. In case this
LTC does not correspond to the LTC(MTD) format, the time will be displayed in a 6-digits
HH:MM:SS format, separating signs = colons, leading zeros will be displayed. In case this
LTC corresponds to the LTC(MTD) format, various display formats can be selected – see
below.
 MTD units of the MTDoE system decode the time code of the central MTD generator out of
the MTD data. This requires a connection to the central MTD generator via network.
There is special display mode provided to display the time of the time code.
Status data are part of the MTD data defining the display format. The following display formats
are available:



Leading zeros on/off.
Separating sign between Hours/Minutes/Seconds = colon, decimal point or space.
Display formats: 1 = HH:MM:SS
4 = MM:SS:FF
Chapter “Configuration of Display Formats and DOWN Modes” describes these set-ups.
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VTR LTC
The VTR LTC contains the time information of an LTC connected to the reader input of the
central MTD generator. VTR LTC is encoded in the MTD data. Any MTD unit, displaying or
operating VTR LTC, has to be connected to the central MTD generator.
Refer to the manual of the central MTD generator for specifications of the LTC input. Example
for the RUB GT module:
Format
Connector
Input impedance
Frame rates
Signal level
Frequency
according to ANSI/SMPTE 12M-1999
Balanced signals
18 k
24, 25, 30, 30-Drop
100 mVp-p - 5 Vp-p, auto-ranging
1.6 - 1000 frames/s
Displaying this time at MTD units works frame-accurate as long as the LTC does not change the
direction (forward ←→ reverse). Any dynamic direction changes cannot be displayed with
frame-accuracy due to the delayed status transmission.
Timers A, B, C, D, E and F are able to display the VTR LTC. The OFFSET TC function has to be
assigned to timers A, B, C, D, E or F in any combination (please also refer to the ALL function).
The original time is displayed if the offset is set to 0.
Further functions dealing with the VTR LTC are DIFF TC and DUE TC.
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OFFSET TC = Offset + VTR LTC
This operating mode may be assigned to timers A, B, C, D, E and F in any combination (please
also refer to the ALL function). The OFFSET TC operating mode shows the result of the
calculation “offset + VTR LTC“, which is a positive value within the range of 0 to 23:59:59, and
will either be displayed as a fixed value or as an up- or down-counting time - according to the
direction of the LTC read from the central generator. This permits e.g. the indication of a time
referenced to a VTR LTC, or - with offset = 0 - to switch displays of the MTD system to a VTR
LTC display without switching the display mode. Displaying this time at MTD units works frameaccurate as long as the LTC does not change the direction (forward ←→ reverse). Any dynamic
direction changes cannot be displayed with frame-accuracy due to the delayed status
transmission.
One of the function keys has to be assigned to OFFSET TC (06) (→ chapter “Programming of
Function Keys”).
The lamp of the OFFSET TC function key will light up as long as the OFFSET TC function is
enabled.
An offset value can be set using keys 0...9. This value is always a positive number (< 24 hours)
and will be converted into a reasonable time, if required (please refer to chapter “Entry of Time
as a Preset ...“). The entry will be displayed only on the local display of the control unit. It is not
possible to set frames or tenths of seconds. Pressing the OFFSET TC key will transmit the offset
value to the central generator, so all connected displays of the MTD system set to the same
timer (e.g. timer A) can now display “offset + VTR LTC “.
The HOLD, START, STOP and RESET keys have the following functions:
HOLD
Current display freezes, the clock continues counting internally. Press HOLD again to
update the displayed time.
START
The HOLD function is deactivated.
STOP
The OFFSET TC function is deactivated.
RESET
When the STOP key is pressed before: The displays are reset to 0.
When pressed during operation: Pressing the RESET key will store the current value of
VTR LTC as a reference value, and the offset is automatically calculated in a way that
“reference value + offset“ equals to 0, i.e. after RESET the display acts like a stop
timer counting up or down referenced to the VTR LTC. This permits e.g. to evaluate
the duration of takes. If the VTR LTC is identified to count down, the OFFSET TC will
also count down. When reaching 0, the result will not become negative, but count
down from 23:59:59. The HOLD function is deactivated.
You have to press STOP or STOP - RESET before you can change the timer mode, e.g. switch to
UP.
Remarks:

After pressing the STOP key, the currently displayed value will be frozen. If the OFFSET TC
function key is pressed again, the displayed value will be transmitted as an offset entry, and
a new result “offset + VTR LTC“ is calculated! Therefore please use the STOP-RESET
sequence to complete this function.

After pressing the STOP key followed by START: time counts upwards in the UP function!
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DIFF TC = Difference Event Time - VTR LTC
This operating mode may be assigned to timers A, B, C, D, E and F in any combination (please
also refer to the ALL function). The DIFF TC operating mode shows the result of the subtraction
“event time – VTR LTC“. If VTR LTC delivers an up-counting time, DIFF TC will be downcounting and positive, provided that the event time is greater than the VTR LTC time, else DIFF
TC will be negative. If VTR LTC shows a down-counting time (LTC runs in reverse direction),
DIFF TC will be up-counting and positive, provided that the event time is greater than the VTR
LTC time, else DIFF TC will be negative. Displaying this time at MTD units works frame-accurate
as long as the LTC does not change the direction (forward ←→ reverse). Any dynamic direction
changes cannot be displayed with frame-accuracy due to the delayed status transmission.
One of the function keys has to be assigned to DIFF TC (08) (→ chapter “Programming of
Function Keys”).
The lamp of the DIFF TC function key will light up as long as the DIFF TC function is enabled.
An offset value can be set using keys 0...9. This value is always a positive number (< 24 hours)
and will be converted into a reasonable time, if required (please refer to chapter “Entry of Time
as a Preset ...“). The entry will be displayed only on the local display of the control unit. It is not
possible to set frames or tenths of seconds. Pressing the DIFF TC key will transmit the offset
value to the central generator, so all connected displays of the MTD system set to the same
timer (e.g. timer A) can now display “event time – VTR LTC “.
The HOLD, START, STOP and RESET keys have the following functions:
HOLD
Current display freezes, the clock continues counting internally. Press HOLD again to
update the displayed time.
START
The HOLD function is deactivated.
STOP
The DIFF TC function is deactivated.
RESET
The DIFF TC function is deactivated and the displays are reset to 0.
You have to press STOP or RESET before you can change the timer mode, e.g. switch to UP.
Remark:

After pressing the STOP key, the currently displayed value will be frozen. If the DIFF TC
function key is pressed again, the currently displayed value is transmitted as an event time.
This applies in the same way after pressing the RESET key (displayed value = 0) followed by
the DIFF TC key, i.e. „0 – VTR LTC“ will be calculated and displayed. To obtain a useful
result, the correct event time must be displayed before pressing the DIFF TC key!

After pressing the STOP or RESET key followed by START, the time will count down or up,
but now in the DOWN or UP operating mode!
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DUE TC: Combination Down/Up/End with VTR LTC
This function may be assigned to the timers B, C, D, E and F. The DUE TC stop timer function
causes one timer to count DOWN, one timer to count UP, and one timer to display the END
time. If DUE TC is e.g. assigned to timer E, E will count DOWN, D will count UP, and C will
display END. If DUE TC is e.g. assigned to time B, B will count DOWN, A will count UP, and
END is not available.
No more than two DUE TC functions can be assigned at the same time: B/E, B/F, C/F.
DUE TC is a useful feature in a video recorder based transmission. The VTR LTC will be the
reference time source.
After setting the DOWN timer (e.g. preset value = clip duration) the DOWN displays show the
start value, the UP displays show zero, the END displays show “VTR LTC + start value”.
Pressing the START key will lock the timers to the VTR LTC. The time value of the VTR LTC at this
moment will be stored as a reference time.
UP now shows the difference of “current VTR LTC – reference time” (= current clip length).
DOWN now displays the difference “start value – time of UP” (= remaining clip duration).
END remains at “reference time + start value”, i.e. it shows the time of the VTR LTC at
which the DOWN timer reaches zero.
The UP and DOWN timers follow the direction of the VTR LTC counting up or down corresponding to an LTC in forward or reverse direction. If the VTR is set before the start of the clip
(VTR LTC with a time less than the reference value) then UP stays at zero and DOWN stays at
the start value.
Example:
Keys
RESET
0...9
DUE TC
START (e.g.:
VTR LTC =
8:00:00)
Function
Resets the current timer
Enter a start value,
e.g. 5:00
Transfer of the start
value
Timers lock to VTR LTC.
VTR runs forward.
DOWN
UP
END
0
0
0
5:00
0
Counting
down
Counting
up
Counting up:
VTR LTC + 5:00
Fixed value = start time
+ 5:00 (e.g.: 8:05:00)
DOWN has reached 0
0 or negative
VTR runs reverse
Counting up
VTR set before start of
the clip
5:00
Counting
up
Counting
down
0
Fixed value = start time
+ 5:00 (e.g.: 8:05:00)
Fixed value = start time
+ 5:00 (e.g.: 8:05:00)
Fixed value = start time
+ 5:00 (e.g.: 8:05:00)
This stop timer function is exclusively defined for a start value > 0, a start value = 0 or < 0 is
considered as an unintended operation and will be rejected.
Pressing the START key again (while timers are running) has no effect.
Pressing the STOP key during operation will unlock the timers. The DOWN and UP timers will
stop, END starts counting again (VTR LTC + last start value). Now it is possible to lock again
with the last start value by pressing the START key or to enter a new start value and press the
DUE TC key.
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One of the function keys has to be assigned to DUE TC (92) (→ chapter “Programming of
Function Keys”).
The lamp of the DUE TC function key will light up as long as the DIFF TC function is enabled.
If a function key is assigned to ALL, the ALL function must be disabled.
A preset value can be set using keys 0...9. This value is always a positive number (< 24 hours)
and will be converted into a reasonable time, if required (please refer to chapter “Entry of Time
as a Preset ...“). The entry will be displayed only on the local display of the control unit. It is not
possible to set frames or tenths of seconds. Pressing the DUE TC key will transmit the preset
value to the central generator, so that it is indicated on all connected displays of the MTD
system which are set to the same timer (e.g. timer C).
The DOWN function will automatically be configured as DOWN-OVERFLOW, so counting
with negative values.
You have to press RESET before you can change the timer operating mode.
The MTD System
Page 66
Time Zone Application
Basic Description
Timers A, B, C, D, E and F can be set to a time zone operating mode. This set-up and the time
zone programming should be done by configuration of the central MTD generator. Each timer
can receive its individual programming.
The internal time base of the central MTD generator conforms to the UTC (Universal Time
Coordinated, former GMT). Programming offsets, any time zone can be calculated. Daylight
Saving Time (DST) switching can be performed as well.
Within an MTD system, six different time zones can be displayed.
Example:
LTC(MTD)
MTD
REF IN
GPI A
UD Display
GPI B
1
2
1
MTD
12:05:00 Timer A = Time zone 1
1
LTC IN
2
LTC OUT (LOOP)
1
LTC IN
2
LTC OUT (LOOP)
3
3
GT/GL
UD Display
2
3
1
13:05:00 Timer B = Time zone 2
3
Analogue clocks with a 2-wire interface can be connected to a RUB VL module. This module
can convert time zone data into impulse telegrams.
Example:
TELEGRAM
GND
LTC(MTD)
MTD
REF IN
GPI A
IN
GPI B
GPI
OUT 1
OUT 3
VTR IN
OUT 2
OUT 4
1
VL
MTD
LOOP
GT/GL
TELEGRAM
GND
11 12 1
10
2
3
9
8
4
7 6 5
11 12 1
10
2
3
9
8
4
7 6 5
The MTD System
Page 67
Others
Error Messages
In those modes decoding the MTD data generated from the central MTD generator, the
connection to this generator has to be established. If this connection is not available after
power-on, an MTD device is not able to receive any data and will shut-down the display, only
the colons will light up. As soon as the connection has been established, the display will switch
to normal operating mode.
In case of a lost of the connection to the central MTD generator, the current displayed timer will
keep his function, i.e. an up-counting or down-counting time will continue counting, a still time
will not change. At a dropout both decimal points and colons will simultaneously light
up.
If the serial RS485(MTD) interface fails while an MTD device tries to send a command (e.g.
START, STOP, RESET ...), the display will shortly indicate the message ErrSEr.
If the Ethernet interface fails while an MTD device tries to send a command (e.g. START, STOP,
RESET ...), the display will shortly indicate the message ErrCon.
The MTD System
Page 68
Revision History
No.
Date
4.0
4.1
2002 March 20
2002 June 13
4.2
4.3
2002 July 01
2002 November 15
4.4
4.5
4.6
4.7
2004 December 20
2006 May 08
2007 January 10
2009 May 07
4.8
5.0
5.1
5.2
2009 September 01
March 25, 2010
April 30, 2010
September 25, 2012
6.0
April 07, 2014
Subject
‘Configuration of the Display and of the Down Function’ now available
for the Local Stop Timer as well - except programming of “leading zeros
at 0”.
New functions 60, 75, 76, 77, 78
OFFSET TC function:
 New function: RESET button pressed during operation deactivates the
HOLD function.
 Text only: “When the STOP key is pressed before: The displays are
reset to 0” and “ To switch to any other function firstly press the
STOP key”.
Transfer Time Zone Parameters: a remark is added.
Update.
Update.
Update.
Revised.
Update of the function table.
DUE TC.
Introducing MTDoE.
Revised.
Corrections at MTDoE diagrams.
XT and XV modules added.
At chapter “Passwords”: password recovery procedure added.
The MTD System
Page 69
Installation Guide
Termination of the RS485 Lines
The RS485 signals should be terminated with a 100 resistor. In the central generator of the
MTD system, this termination is already installed. As no high bit rates are used for
communication via the RS485 interface, the system operation will generally meet the safety
requirements without any further termination. However, when using long cables or many crossconnections or when a very high safety standard is required, a termination may also be
installed at the „opposite“ end of the line. For this purpose, a terminator having the required
resistor may be connected to the DATA OUT of the last equipment.
The system may have several open ends, i.e. the RS485 lines were bifurcated. The resistance
value of the terminator connected at every open end depends on the number of bifurcation:
Without bifurcation = one open end:
One bifurcation = 2 open ends:
Two bifurcation = 3 open ends:
Three bifurcation = 4 open ends:
R=100.
R=200 (220) .
R=300 (330) .
R=400 (390) .
The terminator (such as T_RS485, R=330) is a 9-pin D-SUB connector with the termination
soldered between pins 1 and 2.
Example:
MTD Central
Generator
MTD BD25
LTC(MTD)
RS485
1
1
MTD BD25
1
1
1
1
KDA
Out
In
Out
In
KDA
1
Out
1
Out
KDA
In
Out
KDA
MTD BD25
1
Out
1
KDA
1
In
Out
MTD BD25
Distribution
1
T_RS485
R=330
KDA
1
In
1
1
T_RS485
R=330
Out
MTD BD25
1
In
1
Out
1
T_RS485
R=330