
AS Martem Data Concentrator TELEM-GW5
Akadeemia tee 21G Tel: +372 639 79 79 E-mail: martem@martem.ee
12618 Tallinn Fax: +379 639 79 80 www.martem.ee
Estonia
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1. Main Tasks
The tasks of the Data Concentrator TELEM-GW5 (GW5) include the following:
•To control and monitor the system from the control center using data
communication protocols IEC 60870-5-101 and IEC 60870-5-104
•To concentrate data collection from lower level peripheral devices and
control them by using different data exchange protocols
2. Possible Applications
•Data acquisition and control of regional and national electricity utilities in
SCADA systems for remote control and substation automation
•Comprehensive integration of different devices
•As a communication gateway
3. Features
•Data concentrator with an associated event annunciator performing sub-
station level master unit functions in the substation secondary equipment
system
•Duplex data communications between the feeder and the equipment level
versus the station control level in substations using different
communication protocols and cross-referencing between the protocols
•Full scale data exchange between the levels of the substation control
system including setting values, measurement values, registered fault
parameter values, changes of state with associated time markings etc
•Data concentrator provided with serial interfaces to facilitate the
connection between local output devices and external host systems
•All the settings can be changed using software configuration tool
•GW5 is provided with seven serial RS 232 interface ports through which it
can be connected to remote control and substation automation systems by
using different type of protocols. A SSP interface port to connect to the
visual alarm annunciator unit or the additional input-output unit
A port for connection using interface RS – 485 and a fiber optic port or
Ethernet connection port depending on the version
•Output channel to the remote control system can be connected to a leased
or a dial-up line using a copper line-, radio- or GSM modem
•Data concentrator GW5 is provided with control input for clock
synchronizing purposes using GPS
•Logical operations between digital and analog signals can be described
•Hierarchical connection is possible
•TELEM RTU devices can be remotely configured across TELEM-GW5
•Microsoft Excel direct import and export facilities are in use
•A user-friendly user interface similar to MS