22
Device Description
WAGO-I/O-SYSTEM 750
750-652 Serial Interface RS-232 / RS-485
Manual
Version 1.4.0
3.2.3
CAGE CLAMP
®
Connectors
Use shielded signal lines!
Only use shielded signal lines for analog signals and I/O modules which are
equipped with shield clamps. Only then can you ensure that the accuracy and
interference immunity specified for the respective I/O module can be achieved
even in the presence of interference acting on the signal cable.
Figure 4: CAGE CLAMP
®
Connectors
Table 7: Legend for Figure “CAGE CLAMP
®
Connectors”
Designation Connector Function
D0
1
RTS (RS-232)
Z / TxD+ (RS-485/RS-422)
D1
5
TxD (RS-232)
Y / TxD- (RS-485/RS-422)
D2
2
CTS (RS-232)
B / RxD+ (RS-485/RS-422)
D3
6
RxD (RS-232)
A / RxD- (RS-485/RS-422)
Common
(ground)
3
Common (ground)
7
Common (ground)
Shield
(screen)
4
Shield (screen)
8
Shield (screen)
