Connecting cable: CPU - IM 512
To generate loop current, the IM 512 must be supplied with 24 V at
the subminiature D-type connector in the front plate.
Shield
CPU
Transmitter
13
Receiver
14
Transmitter
+ 24 V
+ 24 V
IM 512
12
13
23
11
24
25
Device ID
1
Receiver
19
10
Housing, GND
Housing
0
2
14
5
2
17
6
18
15
3
2
2
+ RxD
- RxD
+ TxD
- TxD
+ 20 mA
- 20 mA
- RxD
+ 20 mA
+ TxD
- TxD
- 20 mA
+ RxD
Figure 5-19
TTY Submodule: Connecting Cable CPU - IM 512
5
Interface Submodule
System Manual
C79000-B8576-C199-03
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