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CMc IP Box

CMc IP Box

The CMc IP Box offers a fully assembled solution for remote meter reading in fixed networks. The model combines the CMe3000 M-Bus Gateway with an M-Bus Master from the CMeX10-13S Series. The CMc IP Box acts as a communication tunnel which, depending on the variant, can connect up to 256 meters to another gateway or software via LAN. 

The CMc IP Box is easy to install and configure. It is the perfect solution to use in fixed networks. It also offers an ideal solution for energy suppliers who want to implement reliable and efficient remote meter reading.

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: 8
  • Total: 8


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

Electrical connections

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

Electrical characteristics

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

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

Wireless M-Bus

Integrated M-Bus Master

Nominal voltage, master port:
28 VDC (CMeX10-11) or 42 VDC (CMeX10S-13S)
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)
Maximum number of unit loads (hardware limit):
8T/12 mA - 256T/384 mA

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