Technical Specifications
6-3
ET 200S Interface Module IM 151/CPU
A5E00058783-01
Terminal Assignment for the IM 151/CPU
Table 6-1 Terminal Assignment of the IM 151/CPU Interface Module
View
Signal Name Description
IM 151/CPU
1 – –
2 – –
3 RxD/TxD-P Data line B
1
2
6
4 RTS Request To Send
3
4
5
7
8
9
5 M5V2 Data reference potential (from the
station)
6 P5V2 Supply Plus (from the station)
7 – –
RS 485 interface
8 RxD/TxD-N Data line A
9 – –
Receiver
IM 151/CPU FO only:
Fiber-optic interface
Sender
2L+ 1M
2M
1 L+
1 L+ 24V DC
2L+ 24 V DC (to loop through)
1M Chassis ground
2M Chassis ground (to loop through)