M-Bus

● Supports M-Bus standard: EN-13757, CJ/T -188
● Supports Modbus TCP/RTU function code 0x03 and 0x04 to read Meter data
● Default M-Bus port data format: Data bit 8, Parity Even, Stop bit 1
● Supports up to 100 M-Bus slaves
● M-Bus over current protection
● Short-circuit protection on the M-Bus
● Update firmware from serial port
● Watchdog inside

● Supports M-Bus standard: EN-13757, CJ/T -188
● Supports Modbus RTU function code 0x03 and 0x04 to read Meter data
● Supports up to 100 M-Bus slaves
● M-Bus over current protection
● Short-circuit protection on the M-Bus
● Update firmware from serial port

● Supports M-Bus physical layer
● Supports drive up to 100 M-Bus slaves
● Auto M-Bus baud rate
● M-Bus distance is extended by 1200 meters (at 2400 bps)
● M-Bus overloading alarm
● Overcurrent and short-circuit protection on the M-Bus port
● Reverse polarity protection on power

RS-232 / RS-422 / RS-485 to M-Bus Convertor (RoHS)

● Serial Baud and M-Bus Baud can be configured separately
● Provides 10 kinds of Baud for default, 6 kinds of Baud for user-defined
● Supports up to 100 M-Bus slaves
● Provides transparent communication
● Watchdog inside
● Bias resistors of RS-422 and RS-485 adjust by switch
● Allows updating firmware by the RS-232 port
● Overcurrent and short-circuit protection on the M-Bus port
● 3750 Vrms photocouple isolation on the M-Bus port
● ±4 kV ESD to contact
● Reverse polarity protection on power
● Provide 3 LED indicators, PWR LED, MTX LED and MRX LED