Technical data

W&T

Serial Fiber Optic Interfaces

Subject to error and alteration

Interface FO <> Profibus, #61211

Function

The W&T Interface 61211 allows bi-directional conversion of an

Profibus interface into a fiber optic interface with a transmissi-

on speed of up to 1,5 Mbps. The interface operates indepen-

dent of the respective data format and converts the Profibus

data into light signals which can be transmitted over a glass

fiber optic cable.

Connectors

The fiber optic cables are connected to the converter using ST

series connectors, with a DB9 socket for the Profibus connec-

tion. The arrangement of the signal connectors on the front pa-

nel 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# Function

1 Shield

2 n.c.

3 RxD/TxD-P

4 CNTR-P

5 DGND

6VP

7 n.c.

8 RxD/TxD-N

9 CNTR-N