Technical data

W&T

Serial Fiber Optic Interfaces

Galvanic isolation and ESD protection

The serial ports for all Interfaces are galvanically isolated from

the supply voltage through a DC/DC converter with an isola-

tion voltage of 1 KV.

All signal lines for the serial interface are protected by ESD-

immune interface chips against static discharge for voltages up

to 15 kV corresponding to IEC 801-2, Level 4.

Display elements

The Interfaces feature two LED’s, with the Power LED indicating

correct supply voltage and the Data LED data communication

in both directions.

Housing

The W&T Fiber Optic Interfaces are contained in a plastic

housing for mounting on standard rails according to DIN EN

50022-35.

To configure the RS485 / RS422 Interfaces, the enclosure must

be opened to set the mode type/termination DIL switches on

the interface module.

For this purpose we recommend threading a SUB-D connector

with connector body onto the Interface and use the threaded-

on connector to assist in removing the housing cover from the

housing body.