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Elvaco's Infrastructure segment is made up of products that enable collection, processing and delivery of meter data. Our M-Bus Gateways are used to read meters and deliver meter data in a suitable format to a receiving system. M-Bus Masters extends the number of meters a Gateway is able to use and Wireless M-Bus Receivers enables the Gateway to communicate with Wireless M-Bus meters. Elvaco also offers turn-key solutions, which are assembled, connected and ready to start using at delivery. 

CMc IP Box - Elvaco box-build for Fixed Network

Elvaco's CMc IP Box is made up of our M-Bus Gateway CMe3000 and an M-Bus Master from the CMeX10-13S Series, fully assembled in a protective enclosure upon delivery. This turn-key solution acts as a communication tunnel which connects up to 256 meters with a receiving system. The Box can be equipped with our WIreless M-Bus Receiver CMeX50 to enable communication with Wireless M-Bus meters.

  • Total: 9
  • Total: 9


Casing material:
Polystyrene (box) and polycarbonate (transparent door)
Protection class:
Dimensions (w x h x d):
CM-Box 5: 125 x 200 x 122 mm, CM-Box 12: 250 x 200 x 122 mm

Electrical connections

M-Bus master port:
Pin terminal solid wire 0.6-0.8 Ø mm and screw terminal 0.25-2.5 mm²
Supply voltage:
Screw terminal. Cable 0.75-2.5 mm², 0.5 Nm tightening torque
RJ45 (Ethernet)

Electrical characteristics

Nominal voltage:
100-240 VAC (±10%)
Installation category:
50/60 Hz
Power consumption (max):
<5 W for solutions without RS232, <27.5 W for solutions with RS232
Power consumption (nom):
<2 W

Environmental specifications

Operating temperature:
-20 °C to +55 °C
Operating humidity:
5 % to 90 %, non-condensing
Operating altitude:
0-2000 m
Pollution degree:
Degree 2
Usage environment:
Storage temperature:
-40 °C to +85 °C

Temperature sensor, margin of error

Humidity sensor, margin of error

User interface

Green LED:
Red LED:
Yellow LED:
CMe3000: status Ethernet, CMeX10-13S: ongoing M-Bus communication
Push button:
Factory reset
Web interface (HTTP)


Integrated M-Bus Master
Transparent M-Bus:
TCP/IP (software limit does not apply to Transparent M-Bus mode)
M-Bus standard:
EN 13757

Wireless M-Bus

Integrated M-Bus Master

M-Bus baud rate, master port:
300 and 2400 bit/s
M-Bus search modes:
Primary, secondary
Maximum cable length:
1000 m (100 nF/km, maximum 90 ohm)
Nominal voltage, master port:
28 VDC (CMeX10-11) or 42 VDC (CMeX10S-13S)

Wireless M-Bus Receiver

M-Bus slave interface


Software/firmware update:
Web interface

Data storage (examples)

Mobile Network

Fixed Network (Ethernet)

Speed and duplex:
Auto 10/100 MBit half/full duplex



EN 61000-6-2, EN 61000-6-3
EN 61010-1, CAT 3

Connections and Interfaces


For downloads, please visit our support site at: https://support.elvaco.com

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