Siemens 7SR10 Argus Series Manual page 160

7SR10 Technical Manual
Rear terminals
To Control
System
To Control
System
RS485
Fig. 2-2 Communication to Multiple Devices using RS485 (Standard Port)
Chapter 4 - Page 10 of 78
RS485 Screened
twisted pair
2
3
4
Bus Termination Polarity
5V
B
A
GND
RS485 Screened
twisted pair
2
3
4
RS 485 Twisted pair Cable
RS485
© 2018 Siemens Protection Devices
Ext Wire loop
(terminating
resistance) added
Rear terminals
where permanent
drive from master
2 station available
3
4
1
RS485