Rs485 Connections; Pin-Outs For The Rs485 Connection - HomeMatic CCU1 HM-Cen-3-1 Schnellstartanleitung

10

RS485 connections

HomeMatic Central communication with the devices of the HomeMatic Wired family
The connecting lines must be constructed in accordance with the information provi-
ded in the following sections 10.1 Pin-outs for the RS485 connection and Infor-
mation on connecting the RS485 bus .
10.1

Pin-outs for the RS485 connection

Figure 1: Connection diagram for the HomeMatic Central RS485 socket.
The pin-outs of the connection socket above are assigned as follows in the Home-
Matic Central:
Pin
1 RS485 - A
2 RS485 - B
3-8 not connected
Shielding Ground - GND
Assignment
25