5
If water meters with a potential free reed contact
are connected to the inputs the connection can
be made in any direction.
The connectors are given twice for the incoming
and outgoing of the M-bus wires.
Depending on the pulse counter module’s model
the version of the connection board can differ.
Note
You can download additional information in our
product area at www.zenner.com.
1 2 3 4 10 11 9 50 51 52 53 54 55 24 25 24 25
Version M-Bus
1 2 3 4 10 11 9 50 51 52 53 54 55
Version without interface
1 2 3 4 10 11 9 50 51 52 53 54 55 71 72 73 74
Version RS 232 / RS 485 (ZR-Bus)
Connector pin assignment
Main input
Volume pulse
10
Volume GND
11
Additional inputs
Input 1 pulse
52
Input 1 GND
53
Input 2 pulse
54
Input 2 GND
55
M-Bus
M-Bus A
24
M-Bus B
25
RS-232
DTR
71
GND
72
Tx
73
Rx
74
RS-485
+UB 71
GND 72
A 73
B 74
ZE12B28_MA_Multipulse_EN_V2_D 5
10.10.12 17:24
