UMG 96 RM | a-tronix Documentation

Janitza UMG 96 RM Energy Meter

Supported Devices

UMG 96 PQ L

Janitza UMG 96 PQ L Energy Meter

UMG 96 S2

Janitza UMG 96 S2 Energy Meter

For correct RS485 wiring: Follow the guidelines for RS485 wiring.
If the wiring shown in the table below is incorrect, please let us know.
There is no general consensus in the industry about the usage of A and B for the RS485 polarity, so it may be counterintuitive and opposite of what you might expect for some devices.

Device	a-TroniX Controller model OM1	a-TroniX Controller model IG8	RS485-USB converter	RS485-Ethernet converter
A	RS485 A	RS485_POS	RS485 A	TX+
B	RS485 B	RS485_NEG	RS485 B	TX-
N/A	RS GND	GND	Not available	G

UMG 96 RM | a-tronix Documentation