Instructions

General Information 3
Anybus M-Bus to Modbus-TCP Gateway User Manual Doc: HMSI-27-300, Rev: 1.10
1.2 Description
1.2.1 Connections
The Anybus M-Bus to Modbus-TCP Gateway has the following connections:
Connector Pin assignment Note
Power supply 24 VDC: positive power supply
GND: negative power supply
24 VDC (±5%), Screw clamp
Cross sectional area 2.5 mm²
M-Bus connectors MBUS+: positive bus line (2x)
MBUS-: negative bus line (2x)
Screw clamp
Cross sectional area 2.5 mm²
MBUS+ and MBUS- are shorted each
Ethernet interface 1: TX+
2: TX−
3: RX+
4: Termination
5: Termination
6: RX−
7: Termination
8: Termination
According to TIA-568A/B
24VDC GND MBUS+ MBUS- MBUS+ MBUS-