Siemens POS8.4420/109 Manual page 10

Diagrams
Connection terminals
KNX PL-Link plug
Connector
To find the location of the KNX PL-Link plug, refer to Mechanical design
NOTICE! Users can choose either pair of the pins to connect.
NOTICE
Wires are NOT interchangeable!
The device is protected against faulty wiring, but communication does not work on
interchanged wires. Do not connect the KNX / KNX PL-Link bus to the tool plug, only the
tool.
Tool plug
Connector
Connection diagrams
Operation
R1
N1
10
Siemens
Smart Infrastructure
Pin Description
+ KNX PL-Link (positive)
- KNX PL-Link (negative)
Pin Description
+ KNX PL-Link (positive)
- KNX PL-Link (negative)
The device - room operator unit (POS8.44xx)
The controller - room automation station
Twisted pair
A6V11519429_en--_a
2019-01-28