V20525-RS485 uses the round PCB format with a JST connector and an RS485 transceiver. Modbus RTU is the default protocol; power can be supplied externally at 5–12 V or internally at DC 3.6 V.
V20525-RS485 pairs the V20525 round PCB with an RS485 differential transceiver. Modbus RTU is the default protocol and CJ/T 188 is available as an option. A JST connector links the board to the meter, and power can come from an external 5–12 V supply or an internal DC 3.6 V battery.
The round outline and plug-in connector suit meter mechanisms with a central shaft and limited space. PCB dimensions, connector and cable can be customized.
See the M-Bus / RS485 Metering Module Series for protocol details, the other PCB formats and customization options.
