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CMi-Box

Infrastructure

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. 

CMi-Box - M-Bus Metering Gateway for Mobile Network

This CMi-Box is made up of a Meter Connectivity Module and a Wireless M-Bus Receiver, mounted and connected in a protective enclosure. The CMi-Box reads Wireless M-Bus meters (alternatives for wired M-Bus meters are also available, without Wireless M-Bus Receiver), compiles meter data in customized reports and delivers it to a receiving system by a set time schedule and integration protocol via the mobile network. The product is configured and updated through text messages or HTTP, which means that settings can easily be changed without having to visit the installation site.

Mechanics

Casing material:
Polycarbonate
Protection class:
IP54
Dimensions (w x h x d):
141 x 157 x 44 mm
Mounting:
Wall-mount with brackets
Weight:
474 g

Electrical connections

Supply voltage:
230 V power supply: 3 m cable included, 24 V power supply: PCB push connector

Electrical characteristics

Frequency:
50/60 Hz
Power consumption (max):
<6.2 W
Power consumption (nom):
<1.2 W
Installation category:
CAT 2

Environmental specifications

Operating temperature:
-30 °C to +55 °C
Operating humidity:
5 % to 90 %, non-condensing
Operating altitude:
0-2000 m
Pollution degree:
Degree 2
Usage environment:
Indoors
Storage temperature:
-40 °C to +85 °C

Temperature sensor, margin of error

Humidity sensor, margin of error

User interface

Green LED:
Power
Red LED:
Error
Yellow LED:
GSM status
Blue LED:
USB active
Push button:
Factory reset
Configuration:
SMS, HTTP, GSM CSD, Telnet

M-Bus

Interfaces:
IR, integrated M-Bus Master, Wireless M-Bus Receiver, M-Bus slave
M-Bus standard:
EN 13757 and EN 13757-4
Transparent M-Bus:
GSM and TCP/IP (software limit does not apply to transparent M-Bus mode)
Decryption:
Yes

Wireless M-Bus

Integrated M-Bus Master

Nominal voltage, master port:
28 VDC
M-Bus baud rate, master port:
2400 and 9600 bit/s
Maximum number of M-Bus devices (software limit):
128
M-Bus search modes:
Primary, secondary
Maximum cable length:
1000 m (100 nF/km, maximum 90 ohm)

Wireless M-Bus Receiver

Modes:
S1, T1, C1
Maximum number of Wireless M-Bus devices:
800
Encryption, Wireless M-Bus:
AES-128
OMS compliant:
Yes
Radio frequency band:
868 MHz
RF sensitivity:
-105 dBm

M-Bus slave interface

General

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

Data storage (examples)

1 meter:
500 days
8 meters:
63 days
32 meters:
16 days
64 meters:
8 days
128 meters:
4 days

Mobile Network

GPRS class:
Up to 12
Band:
850/900/1800/1900 MHz

Fixed Network (Ethernet)

Integration

Approvals

EMC:
EN 61000-6-2, EN 61000-6-3
Safety:
EN 61010-1, CAT 2

Connections and Interfaces

Transmissions

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

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