Example Connection With More Than One Sub-Distribution Board; Connection And Installation Example - HomeMatic HMW-LGW-O-DR-GS-EU Installation And Operating Manual

6.3 Example connection with more than
one sub-distribution board
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The shield must not be connected to the pro-
tective conductor of the supply network.

6.4 Connection and installation example

A
B
+24V/SELV
GND
Terminal Function
1.3 RS485 Bus (Bus A)
1.4 Supply voltage, +24 V
1.7 RS485 Bus (Bus B)
1.8 Supply voltage, ground (GND), ground
reference for all inputs
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