Technical data

58
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
Both ends of a Profibus segment must be terminated with a
terminating network which is usually integrated into the
Profibus connectors and can be optionally switched. This
resistor network has two functions: to ensure reflection-free
termination of the line, and to provide a defined rest state on
the lines during the high-impedence phases of the bus system.
To supply the termination network, Pin 6 provides 5 V
referenced to the ground Pin 5, with a maximum load capacity
of 50 mA.
Pin# Function
1 Shield
2n.c.
3 RxD/TxD-P
4 CNTR-P
5 DGND
6VP
7n.c.
8 RxD/TxD-N
9 CNTR-N