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SNDEXT-4
4 way monitored sounder circuit extension card
PRODUCT OVERVIEW
SNDEXT-4 has been deisgned to provide a sounder circuit extension solution. The card has 4 monitored and fused
sounder cicuits. There are switched negative inputs to trigger all circuits (common) or each circuit individually, a relay is
also provided for remote fault monitoring. The fault relay will operate for all faults including loss of 24v supply input.
The card is driven from an existing sounder circuit in the control panel. A permanent 28v supply is required. If used with a
Haes Excel-EN control panel, this supply can be taken from the 28v output on the main circuit board.
Each circuit is fused at 0.75 amp via self healing fuses and requires a 4K7 end of line monitoring resistor (provided).
SNDR1
+ -
PARTS INCLUDED
SNDR2
SNDR3
+ - + -
SNDR4
+ -
SUPPLY
28V 0V
A
Nylon self adhesive pillar
CIRCUIT
ACTIVE
SNDR1
SNDR2
SNDR3
SNDR4
TPCA09
FAULT
B
M3x6 Screw
x4
S+ SINPUT
CARD DETAILS
NC
NO C
FAULT
-
FLT
x4
C
M3x25 Screw
x4
D
Fixing Kit
6x15mm Spacer
x4
1
2
3
4
ACTIVATION(-)
1
2
SNDR1
+ -
8
7
SNDR2
SNDR3
+ - + -
CIRCUIT
ACTIVE
SNDR1
SNDR2
SNDR4
SUPPLY
28V 0V
+ -
SNDR3
SNDR4
FAULT
S+ SINPUT
9
NC
NO C
FAULT
-
FLT
1
2
3
4
ACTIVATION(-)
1
Monitored sounder circuits, fused at 0.75 amp, 4K7
end of line resistor
2
28v supply input
3
Switched negative input for common sounder
circuit ringing (subject to link from 28v supply to S+)
4
Switched negative inputs for activation of individual
sounder circuits 1 - 4
5
Switched negative common fault output
6
Fault relay, NO/NC changeover (fail safe)
7
Sounder circuit fault LED indicators, open or short
circuit
8
Sounder circuit active LED indicators
9
S+, S-, sounder circuit drive input
6
3
5
4
Approved Document UI-SNDEXT-01 Issue 1.0
SNDEXT-4 Sounder circuit extension card
INSTALLATION
The sounder circuit extension card has been designed to utilise an existing sounder circuit and is therefore compatible with
most makes of conventional fire alarm control panel.
Four, self adhesive, nylon, mounting pillars (A) are provided to enable the card to be mounted into a suitable space.
If, however, the card is to be mounted into a Haes, Excel-EN control panel, it has been designed specifically to fit neatly
into a zone card slot and fixed using 4 x M3x6 screws (B) as provided.
Alternatively, if the Excel-EN is fully loaded, the sounder circuit card can be piggy backed over an existing zone card using
4 x M3x25 screws and 4 x 6x15mm spacers (C & D) as provided.
FIT IN PLACE OF ZONE CARD
PSU
@ + -
28V 0V
+ -
C
FIRE
NC NO
C
FAULT
NC NO
FR FLT CC PUL SNDR1 SNDR2
-OP -OP -IP -IP + - + -
ZONE A
ZONE1 ZONE2 ZONE3 ZONE4
+ -
+ - + -
+ -
+ -
ZONE B
ZONE C
+ - + -
SNDR1
ZONE D
+ -
+ -
SNDR2
SNDR3
+ - + -
CIRCUIT
ACTIVE
SNDR1
SNDR2
SNDR4
+ -
SNDR3
SUPPLY
28V 0V
SNDR4
FAULT
1
2
1
ON
2
3
4
TWIN
D
C
B
A
ON
+ -
3
BATTERY
-
-
OPA OPB
C
+ -
NO
AUX
+ -
SNDR A
S+ SINPUT
SNDR B
NC
NO C
FAULT
-
FLT
1
2
3
4
ACTIVATION(-)
Zone Card (TPCA04)
Sounder Ext Card (TPCA09)
Fix using 4 x M3x6 screws (B)
as provided
PIGGY BACK OVER EXISTING ZONE CARD
PSU
@ + -
28V 0V
+ -
C
FIRE
NC NO
C
FAULT
NC NO
FR FLT CC PUL SNDR1 SNDR2
-OP -OP -IP -IP + - + -
C
C
D
D
ZONE A
ZONE1 ZONE2 ZONE3 ZONE4
+ -
+ - + -
ZONE B
+ -
+ -
SNDR1
+ -
ZONE C
+ - + -
SNDR2
SNDR3
+ - + -
CIRCUIT
ACTIVE
SNDR1
SNDR2
ZONE A
ZONE D
+ -
+ -
SNDR4
+ -
ZONE B
ZONE C
+ - + -
SUPPLY
28V 0V
SNDR3
SNDR4
FAULT
TWIN
+ -
1
2
3
2
ON
1
4
3
2
ON
4
TWIN
D
C
B
A
1
D
C
B
A
ON
3
BATTERY
-
-
OPA OPB
S+ SINPUT
NC
C
NO
AUX
NO C
FAULT
-
FLT
+ -
SNDR A
+ -
SNDR B
1
2
3
4
ACTIVATION(-)
Piggy back sounder card
ontop of existing zone card
and fix using 4 x M3x25 screws and 6x15mm spacers
as provided
Approved Document UI-SNDEXT-01 Issue 1.0
ZONE D
+ -
SNDEXT-4 Sounder circuit extension card
CONNECTION DETAILS FOR COMMON SOUNDER RINGING FROM EXISTING SOUNDER CCT
Permanent 28v supply
Can use 28v O/P from Excel-EN
main PCB (500mA)
or seperate power supply unit.
SNDR1
+ -
SNDR2
SNDR3
+ - + -
CIRCUIT
ACTIVE
SNDR1
SNDR2
SNDR4
+ -
SNDR3
SUPPLY
28V 0V
SNDR4
FAULT
S+ SINPUT
+
Existing
Sounder CCT
-
NC
NO C
FAULT
-
FLT
1
2
3
4
ACTIVATION(-)
EOL
Sndr CCT
Approved Document UI-SNDEXT-01 Issue 1.0
SNDEXT-4 Sounder circuit extension card
CONNECTION DETAILS UTILISING INDIVIDUAL SWITCHED NEGATIVE CONTROL
Permanent 28v supply
Can use 28v O/P from Excel-EN
main PCB (500mA)
or seperate power supply unit.
SNDR1
+ -
SNDR2
SNDR3
+ - + -
CIRCUIT
ACTIVE
SNDR1
SNDR2
SNDR4
+ -
SNDR3
SUPPLY
28V 0V
SNDR4
FAULT
S+ SINPUT
NC
NO C
FAULT
fault
relay
contacts
OP 1
IP 1
programmed as
fault IP
OP 2
Approved Document UI-SNDEXT-01 Issue 1.0
-
FLT
1
2
3
4
ACTIVATION(-)
Individual circuit
activation from switched
negative inputs