e-terragridcom LMU Brochure

TELECOMMUNICATIONS PRODUCT SOLUTIONS
e-terragridcom LMU
Coupling Device
The e-terragridcom LMU
with compact design ensures
easy maintenance and
reduced installation space.
Comprehensive stand-alone coupling
device for PLC telecommunications
The power line carrier technique uses the power line as the transmission medium for
data transfer of voice, energy management and protection signaling of point-to-point
PLC terminals by superimposing a modulated carrier frequency on the AC signal
carried on the power line. The e-terragridcom LMU coupling device is designed to
insert and extract PLC signals from high voltage power lines under an optimum
impedance matching.
SAFETY AND RELIABILITY
OPTIMUM MATCHING TO POWER
Insulated and weather-proof enclosure
provides full protection of equipment
and personnel with a compact design
offering easy maintenance and high
reliability
LINE CHARACTERISTICS
Matching characteristics that cope with
all the impedances between PLC
equipment and the power line coupling
capacitor circuit
COMPATIBLE WITH EXISTNG PLC SYSTEMS
Without any additional accessories, the e-terragridcom LMU fulfils various
configurations encountered in the power line technique.
CUSTOMER BENEFITS
© ALSTOM 2014. All rights reserved.
High safety level
Compatible with existing PLC
systems
Cost effective solution
Easy to install and configure
Extended temperature range
Extended upper frequency value
750 kHz
Enhanced peak envelope power
650 W
IP66-compliant
Visible grounding switching
Grid-NMS-L3-eterragridcom_LMU-2574-2014_08-EN. Information contained in this document is indicative only. No representation or warranty is given or
should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is
provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly
prohibited. Alstom contributes to the protection of the environment. This leaflet is printed on environmentally friendly paper.
TELECOMMUNICATIONS PRODUCT SOLUTIONS
e-terragridcom LMU
TECHNICAL SPECIFICATIONS
For more information
please contact Alstom Grid:
Alstom Grid Worldwide Contact Centre
www.alstom.com/grid/contactcentre/
Phone: +44 (0) 1785 250 070
© ALSTOM 2014. All rights reserved.
Visit us online: www.alstom.com
Picture caption
Grid-NMS-L3-eterragridcom_LMU-2574-2014_08-EN. Information contained in this document is indicative only. No representation or warranty is given or
should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is
provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly
prohibited. Alstom contributes to the protection of the environment. This leaflet is printed on environmentally friendly paper.