Technical data

W&T

Serial Fiber Optic Interfaces

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:

Termination

For all RS485 operating modes it is essential that the bus

system be terminated with a termination network which

assures a defined rest state in the high-impedance phases of

bus operation.

The bus system can be connected to a termination network by

closing switches #6 and #7 on the interface module:

120W

+5V

SW6

SW7

Data In B

Data In A

330W330W

Pin# Function

1 data out A (-)

2 data in A (-)

5 signal GND

6 data out B (+)

7 data in B ( +)