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An introduction to Monitoring Fundamentals strictly from the perspective of telecom network alarm management.

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Remote Telemetry Units (RTUs) for Medium Sites

Do you have remote sites that need visibility with advanced features, but a high-capacity RTU is just too much? If so, then you need a medium-capacity RTU - for remote sites that are not necessarily small and don't require a device with a capacity that you'll never realistically use.

NetGuardian 420

  • 20 discrete point inputs, 4 control relays, and up to 6 analog inputs.
  • Interfaces: 4 RJ45 serial ports (terminal server), 1 RJ45 10/100 Ethernet port, 1 RJ11 telco jack, 1 - 50-pin connector for discretes and relays, 1 - 4-pin screw plug for analogs.
  • Power Input: -48VDC (-40 to -70 VDC), -24VDC, 130 VDC (optional).
  • Operating Temperature: 32 to 140 degrees F (0 to 60 degrees C).
  • Mounting: 19" or 23" rack.
NetGuardian 420

NetGuardian 832A

NetGuardian 832A
  • 32 discrete alarms (expandable to 176), 32 ping alarms, 8 analog alarms, 8 controls, and 8 serial ports.
  • Interfaces: 8 RJ45 Yost RS-232 ports, 2 RJ45 Ethernet 10baseT port, 1 RJ11 Telco jack, 2 50-pin amphenol connectors (discretes, controls, and analogs), 33.6K internal modem.
  • Power Input: -48VDC (-40 to -56VDC), optional -24 VDC (-18 to -36 VDC), optional Wide Range -24/-48 VDC (-18 to -72 VDC).
  • Operating Temperature: 32 to 140 degrees F (0 to 60 degrees C).
  • Mounting: 19" or 23" rack or wall mount.

Need even more capacity? Take a look at our RTUs for large sites

Do you think that's too much capacity for your needs? Then here are our RTUs for small sites