Data Sheet for Product

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Siemens Room units with 2-wire interface CB2N3261en_03
2020-01-22
Connecting diagrams
The example below shows the room unit connected to POL6xx or POL4XX
controller.
C
E
+
C
E
-
C
E
-
C
E
+
R1 N1
RI: POL room unit
N1: POL controller
= Twisted pair
Terminal layout:
Wiring diagram
2-wire interface, power supply
+ Device power supply, data (positive)
- Device power supply, data (negative)
CE -
CE +
3
261Z19
3
261Z20