
3.3.- UNIT TERMINALS
Table 2: List of unit terminals�
Terminal Description
A A (+) Modbus
B B (-) Modbus
L+ + 24 Vdc
M- GND
Rx RS-232, data reception
Tx RS-232, data transmission
MBUS+ + connection to M-BUS slaves
MBUS-
- connection to M-BUS slaves
A B L+
Rx Tx M-
Terminals
MBUS+ MBUS-
Terminals
Figure 4: Unit terminals
9
Instruction Manual
CMBUS
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