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Battery Voltage Monitor: BVM 48 G2

Monitor your battery cell voltage and temperature for ultimate visibility over your power supplies.

Key Features

  • Get very accurate readings (even over a small voltage range)
  • Monitor 48 individual battery cell voltages
  • Temperature monitoring at each cell
  • Use the built-in web browser to easily monitor battery voltages and temperatures from any PC on the network

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The BVM 48 G2 monitors up to 48 cells and reports voltage and temperature thresholds alarms via SNMP. In addition to these threshold alarms, the BVM also sends notifications should a battery cell and/or string fall out of its normal (average) range by more than the desired percentage. Your SNMP manager issues periodic Ger requests against specific cells, and offers both instant readings and trending to track battery voltages over time.

In an alternate configuration with a NetGuardian 832A or 864A, the BVM's threshold alarms are passed through as local NetGuardian analogs. This configuration gives you the advantage of reporting alarms from the same IP address as the NetGuardian. The BVM 48 also makes a great standalone, battery-monitoring solution.

Add one D-Wire sensor module for each battery cell to be monitored. The modules connect via daisy0chain to the front-panel of the BVM 48. Each module measures both battery cell voltage and temperature. Daisy-chain up to 12 sensors from each of the BVM's 4 front-panel D-Wire ports (48 sensors total).

D-Wire sensors require no external power. All required sensor power is drawn directly from the BVM 48 over standard RJ11 cables. D-Wire sensors are automatically recognized and configured by the BVM, and readings can be immediately viewed in the BVM's web interface.

Form Factor

  • Height: 1.72"
  • Width: 17"
  • Depth: 6.64"
  • Mounting:
  • Weight: 4.3 lbs

Core Features

  • Analog Accuracy: +/- 1%
  • Craft port: 1 serial port
  • D-Wire: 4-Plug
  • Fuse: 3/4 Amp GMT
  • LED status indicators
  • NIC: 10/100BaseT
  • Power Input: Dual
  • Power Supply: -48Vdc
  • Rack Ears: Both
  • RoHS: 5/6
  • Temp/Battery Monitoring
  • Temperature: 32 to 140F (0 to 60C)
  • Web Browser Interface

Operating Conditions

  • Humidity: 0-95% NC

Optional Features

  • Analog Alarms: 4
  • External Speaker
  • Mounting: Wall mount
  • Power Supply: +24Vdc
  • Rack Ears: 19-inch, 23-inch
No additional software.

Explore different capacities

d-pk- d-pk- d-pk-netg5 832A d-pk-netg5 864A d-pk-
Product Name NetGuardian 420 NetGuardian 240T Battery Voltage Monitor: BVM 48 G2 NetGuardian 864A G5 NetGuardian 480 G4
Alarm Count 20 40 32 64 80
Analogs 4 2 8 8 4
Comparison Roughly half the capacity. Adds T1 transport. - Double capacity in same 1RU Massive discrete capacity.