CMc GPRS Box

Elvaco’s CMc GPRS Box consists of their M-Bus Metering Gateway CMe2100 and an M-Bus Master from the CMeX10-13S Series, fully assembled and connected in a protective enclosure at delivery. This box-build solution is used to read up to 128 M-Bus meters, compile meter data in customized reports and deliver it to a receiving system by a set time schedule and integration protocol via the mobile network.

• Wireless M-Bus Receiver CMeX50, which enables communication with up to 128 Wireless M-Bus meters is available as an add-on option.

Product variants:

• CMc GPRS M-Bus for 8 meters in CM-Box 5
• CMc GPRS M-Bus for 8 meters in CM-Box 3
• CMc GPRS M-Bus for 32 meters in CM-Box 5
• CMc GPRS M-Bus for 128 meters in CM-Box 12 (with RS232)
• CMc GPRS Wireless M-Bus for 128 meters in CM-Box 12
• CMc GPRS M-Bus for 64 meter in CM-Box 5
• CMc GPRS M-Bus for 64 meters in CM-Box 12 (with RS232)
• CMc GPRS M-Bus for 32 meters in CM-Box 12 (with RS232)
• CMc GPRS Amplified Wireless M-Bus for 128 meters in CM-Box 12

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

User interface

• Green LED: Power
• Red LED: Error
• Yellow LED: CMe2100: GSM status, CMeX10-13S: ongoing M-Bus communication
• Blue LED: USB active
• Push button: Factory reset
• Configuration: SMS, HTTP, GSM CSD, Telnet

M-Bus Interfaces:

• Integrated M-Bus Master M-Bus standard: EN 13757
• Transparent M-Bus: GSM and TCP/IP (software limit does not apply to transparent M-Bus mode)
• Decryption: No

Integrated M-Bus Master

• Nominal voltage, master port: 28 VDC (CMeX10-11) or 42 VDC (CMeX10S-13S)
• 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)

Mechanics

• Casing material: Polystyrene (box) and polycarbonate (transparent door)
• Protection class: IP65
• 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
• Mounting: Wall-mount

Electrical connections

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

Electrical characteristics

• Nominal voltage: 100-240 VAC (±10%)
• Frequency: 50/60 Hz
• Power consumption (max): <9 W for solutions without RS232, <31 W for solutions with RS232
• Power consumption (nom): <2 W
• Installation category: CAT 3

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: Indoors
• Storage temperature: -40 °C to +85 °C

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