Logged in as


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 LTE Box - Elvaco box-build for Mobile Network

Elvaco's CMc LTE Box consists of our M-Bus Metering Gateway CMe2100 LTE, an external magnet mount antenna, and an M-Bus Master from the CMeX10-13S Series (only for 32-256 meters), fully assembled and connected in a protective enclosure at delivery. This box-build solution is used to read up to 256 M-Bus meters, compile meter data in customized reports and deliver it to a receiving system. This by a set time schedule and integration protocol via a mobile network with support for LTE communication and automatic fallback function (2G/3G/LTE). Our Wireless M-Bus Receiver CMeX50, which enables communication with up to 256 Wireless M-Bus meters is available as an add-on option.

  • Total: 10
  • Total: 10


Casing material:
Polystyrene (box) and polycarbonate (transparent door)
Protection class:
Dimensions (w x h x d):
CM-Box 3: 100 x 150 x 96 mm, CM-Box 5: 125 x 200 x 122 mm, CM-Box 12: 250 x 200 x 122 mm

Electrical connections

M-Bus master port:
Screw terminal. Cable 0.2-1.5 mm², 0.5 Nm tightening torque
Supply voltage:
Screw terminal. Cable 0.5-2.5 mm², 0.5 Nm tightening torque
USB master port:
Type A
USB slave port:
Type micro B
Mobile (Radio)

Electrical characteristics

Nominal voltage:
100-240 VAC (±10%)
Installation category:
50/60 Hz

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

SMS, HTTP, Telnet


Integrated M-Bus Master
M-Bus standard:
EN 13757

Wireless M-Bus

Integrated M-Bus Master

M-Bus baud rate, master port:
2400 and 9600 bit/s
Maximum number of M-Bus devices (software limit):
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


Real-time clock accuracy:
<2 s/day
Script engine:
Intelligent script engine for active content generation
Software/firmware update:
Metering reports:
HTTP, FTP, SMTP (e-mail)
Real-time clock backup:
12 h

Data storage (examples)

Mobile Network

Fixed Network (Ethernet)



EN 61000-6-2, EN 61000-6-3, EN 301489-1, EN 301489-7
EN 61010-1, CAT 3

Connections and Interfaces


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

Our website has gathered all resources you need to update, tune and troubleshoot your installations, such as:

  • Latest software versions
  • FAQs
  • Guides
  • In-depth technical information
  • Support forum

By continuing to use the site, you agree to the use of cookies. Learn more about our Privacy policy and Cookie policy.