RTM-04 is a signal converter; it provides RS-485 standard serial interface and M-bus
network interface, which is used to inter-convert two communication standards. It provides
communication interface and network power for M-BUS main station, with function of
protection and overload indication.

TECHNICAL PARAMETER
? Power supply: DC 24V±1V @1.5A
? Ambient pressure: 86kPa～106kPa
? Relative humidity: 5%～85% RH
? Ambient temperature: - 5℃～55℃
? Storing temperature: -10℃～70℃
? Input： M-BUS
? Output： RS485
? Communication baud rate: 300bps～9600bps
? Power consumption: 1.2 W
? Max. communicating distance in M-BUS network : 1000m
? The maximum loading : 32 terminal meters
? Voltage output： Low level voltage output： 24V， High level voltage output： 36