Siemens SICAM AK Manual page 70

Redundancy via SCA-RS
•
Take the expansion PCB and guide it towards the backplane from below
correct plug connection between both PCB's
•
Screw the expansion PCB firmly to the mounting rack
3
+5V GND
NC
~/-
~/+
4
•
Remove the screws for the connection PCB
expansion PCB
5
+5V GND
•
Rotate the connection PCB to the position shown
expansion PCB
8
7
6
70
NC
~/-
~/+
+5V GND
2
NC
~/-
~/+
NC
~/-
~/+
+5V GND
NC
~/-
~/+
 
+
NC
~/-
~/+
+5V GND
+5V GND
NC
~/-
~/+
Unrestricted


NC
~/-
~/+
+5V
+5V GND
NC
~/- 2
~/+

; there are 2 on both the backplane and
NC
~/-
~/+
+5V GND
+5V GND
NC
~/-
~/+

and fasten it with backplane and
NC
~/-
~/+
+5V GND
+5V
NC
~/-
~/+
SICAM RTUs, SICAM AK Redundancy
Edition 10.2016, DC2-026-2.07

; ensure
3
GND
NC
~/-
~/+
4
5
8
7
GND
6