Cable Destination
Cable Marking***
Wire Destination
Wire Color
M-Bus 1 interface
MBUS1
Line
brown
Line
white
M-Bus 2 interface
MBUS2
Line
brown
Line
white
M-Bus interfaces (two) *
MBUS
Mbus1 Line
brown
Mbus1 Line
white
Mbus2 Line
yellow
Mbus2 Line
green
1
st
pulse input/output
PULS1
Pulses (+)
brown
Common (-)
white
2
nd
pulse input/output
PULS2
Pulses (+)
brown
Common (-)
white
Pulse inputs/outputs (two) *
PULS
Pulses1 (+)
yellow
Common1 (-)
green
Pulses2 (+)
brown
Common2 (-)
white
ModBus® interface
MODBUS
Line A
brown
Line B
white
24V AC/DC**
yellow
24V AC/DC**
green
CL interface
CL
CL+
brown
CL-
white
MiniBus interface
MINIBUS
Line+
brown
Line-
white
For external power supply from 230V AC mains
230V AC
230V L
brown
230V N
white
For external power supply from 24V AC/DC source
24V AC/DC
24V AC/DC
brown
24V AC/DC
white
*The option for the case when two extra cables are included at a time
**Not used when the meter is powered from an external power supply source
***When a second extra cable is not included, the M-Bus1 cable is not marked additionally
Table 4: Destination and marking of the extra cables of the heat meter
Cable Connections
Page 31
November 2020
HYB-UM-03193-EN-02