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Smart Meter M-Bus Connector

M-Bus (Meter Bus, EN 13757) is a European standard for reading utility meters (water gas heat electricity) using a 2-wire bus that can power slave meters while transmitting consumption data.

// Specifications
Standard
EN 13757-2 M-Bus
Wires
2-wire bus powered
Slaves
Up to 250 per master segment
Voltage
36V DC on bus
Data Rate
300 to 9600 bps
Use Case
Smart meters utility reading building energy management
// Pin Reference Table
Pin Name Function Type
1 M-Bus+ M-Bus data and power positive 36V PWR
2 M-Bus- M-Bus data and power negative GND