Technical data

41
W&T
Serial Fiber Optic Interfaces
Subject to error and alteration
Interface FO <> RS232 with handshake, #81211
Function
The W&T Interface 81211 allows bi-directional conversion of an
RS232 interface into a fiber optic interface with a transmission
speed of up to 115.200 bps. The interface works independent-
ly of the data format used and converts one data line and one
hardware handshake line in each direction.
Connectors
The fiber optic cables are connected to the converter using ST
series connectors, with a DB9 plug for the RS232 connection.
The arrangement of the signal connectors on the front panel of
the interface can be seen from the following illustration:
Serial Port
Power LED
Data LED
TxD RxD
Fiber optic
ST connectors
The pin configuration for the serial connector is shown in the
following table, and may also be found on a sticker attached to
the device:
Pin# Funktion
2 Data In
3 Data Out
4 Freigabe-Pegel
5 Signal-Masse
7 Handshake Out
8 Handshake In