Optical star coupler
The devices installed at power substation are usually equipped with two communication channels:
  • telecontrol channel – used for transmission telecontrol data (control commands, events)
  • diagnostic purpose channel – enabling access to data like: disturbance recorders data, measurment and diagnostic data, events recorder, settings
In most cases the substation is unmanned. The substation devices are connected to the star point, and the star point is joined to computer network, which enables continuous monitoring of substation. The connection of a few star couplers OPG-6 serves as communication equipment which allows to configure both telecontrol ans diagnostic purpose communication channels. OPG-6 enables connecting many different devices of different types and transfer data through one communication channel.

Manuals, diagrams, technical details


Product description

Main features

The device is equipped with:

  • 6 optic-fibre communication ports (ST, 820 nm – multimode fibre)
  • port 1 ST – MASTER/SLAVE (customizable operation mode: MASTER, SLAVE, ECHO ON/OFF)
  • ports: 2,3,4,5,6 ST – SLAVE
  • port RS-485 – MASTER
  • port RS-232 – MASTER
  • auxilliary voltage: 220-250 V AC/DC. Other voltage levels also available on request: ex. 24 V AC/DC


Rated supply voltage U = 100V – 220V DC
U = 230V AC
or other on request
Burden in supply voltage ≤2W
Communication ports Master – fiber-optic ST
Master – RS232
Master – RS485HD
Slave 1÷5 – fiber-optic ST
Ambient temperature -5 °C … +40 °C
Dimensions 77 x 55 x 110mm
Weight 0,3 kg
Ingress Protection degree IP40
Mount TS-35 rail

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