Test voltage: M-Bus / 24 V supply UM
Test voltage: 24 V supply (UM)/functional ground
Connection method
Inline connector
Inline data jumper
Spring-cage connection
Transmission speed
300 Baud ... 19200 Baud (configurable)
500 kbps
Scope of supply
including Inline connectors and marking fields
Operating mode
Process data mode with 16 words
Special properties
for the connection of M-Bus devices
Overvoltage category
II (IEC 60664-1, EN 60664-1)
Pollution degree
2 (IEC 60664-1, EN 60664-1)
Supply voltage
24 V DC (via voltage jumper)
7.5 V DC (via voltage jumper)
Current draw
max. 160 mA
max. 90 mA
typ. 26 mA (without connected unit loads)
typ. 56 mA (for 10 unit loads; see example calculation)
typ. 65 mA
Supply voltage range
19.2 V DC ... 30 V DC (including all tolerances, including ripple)
Test voltage: M-Bus / 7.5 V supply (bus logic)
Test voltage: M-Bus / 24 V supply U<sub>M</sub>
Test voltage: M-Bus/functional ground
Test voltage: 7.5 V supply (bus logic)/functional ground
Test voltage: 24 V supply (U<sub>M</sub>)/functional ground
Conductor cross-section, rigid
Conductor cross-section, flexible
Conductor cross-section AWG
Ambient temperature (operation)
Air pressure (operation)
70 kPa ... 106 kPa (up to 3000 m above sea level)
Air pressure (storage/transport)
70 kPa ... 106 kPa (up to 3000 m above sea level)
Ambient temperature (storage/transport)
Permissible humidity (operation)
10 % ... 95 % (non-condensing)