Signal Distribution Unit
EKRA-SDU-FOS02

FOS02 is designed to distribute optical signal in time synchronization systems of control and automation system at stations and substations

FOS01 is connected to PPS/IRIGB optical outputs of SV series time server from one side, and to optical inputs of converters or directly to IEDs from the other side

The distributor has metal enclosure and shall be mounted on the DIN-rail

Front view

grouped by output signals group: “Power”, “Signal”, “Emergency”

Features
Specifications

Simple configuration

Simple hardware configuration of distributor operation modes. Blocked outputs prevent fast wear of optical transmitters in continuous operation mode

High reliability

The device is designed for continuous operation

Specification	Value
Rated voltage, V	24 DC or 220 AC/DC
Power consumption, W, DC/AC, max	5/8
Current consumption at U_rat, mA, DC/AC, max	200/36
Optical cable length at data rate of 5 Mbaud, m, max	2,000
Optical transmitter operating wavelength, nm	820
Optical connector type	ST
Ingress protection (IP) degree	IP20
Operating temperature	minimum: -30 °C maximum: +55 °C
Humidity at 25 °C, %, max	80%

Signal Distribution UnitEKRA-SDU-FOS02

Power supply connection X1

Connector X2 of “Alarm” relay

Optical ST-connector of “Fin” input

Connectors for attaching optical signals (outputs from “Fo1” to “Fo12”)

3 single-color LEDs

Features

Specifications

Signal Distribution Unit
EKRA-SDU-FOS02