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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 Large Sites

Do you have central offices, regional hubs, or maybe some other type of network that presently requires or will require high-density alarm coverage? If so, then a high-capacity RTU is the best fit for you.

NetGuardian 480

  • 80 discrete point inputs, 4 control relays, and an optional D-wire input supporting up to 16 analog sensors.
  • Interfaces: Two 50-pin connectors for discrete alarms and control relays, 1 RJ45 10/100BaseT Ethernet Port, 1 USB Craft Port, 1 Serial Port (choose from RS232, RS485, 202, or 33.6K Dialup Modem), 1 D-Wire sensor input supporting up to 16 analog sensors (optional).
  • Power Input: -48VDC (-36 to -72VDC), optional -24VDC (-18 to -36VDC), optional 130VDC, optional +24VDC via 110VAC wall transformer (+12 to +30VDC).
  • Operating Temperature: 32 to 140 degrees F (0 to 60 degrees C).
  • Mounting: 19" or 23" rack.
NetGuardian 480

NetGuardian 864A

NetGuardian 864A
  • 64 discrete alarms (expandable to 256), 32 ping alarms, 8 analog alarms, 8 controls (expandable to 16, 24, 32).
  • Interfaces: 8 RJ45 YOST standard RS-232 ports, 2 RJ45 10BaseT Ethernet port, 1 RJ11 Telco jack, 2 50-pin amphenol connectors (discretes, controls, and analogs), 1 4-pin screw connector (analogs).
  • Power Input: -48VDC (-40 to -56VDC), optional -24 VDC (-20 to -56 VDC), optional Wide Range -24/-48 VDC (-20 to -56 VDC).
  • Operating Temperature: 32 to 140 degrees F (0 to 60 degrees C).
  • Mounting: 19" or 23" rack or wall mount.

Is that too much capacity for what you need? Take a look at our RTUs for medium sites and for small sites