NetGuardian 420: Ordering Options

The NetGuardian 420 back panel has dual power feeds for increased reliability, inputs for the discretes, analogs, and control relay outputs, a POTS/dial-up telco jack, a 4-port terminal server for remotely accessing serial equipment, and a 10/100 LAN jack for SNMP alarm reporting and email/cell phone notifications.

Selectable Configuration Options: Download complete list here
Real time clock (Up to milliseconds).
On board ambient temperature sensor and integrated battery monitoring.
Extended temperature range (-32 F to 140 F/-40 C to 70 C).
Power Input: -48 VDC nominal (-36 to -72 VDC).
-24 VDC nominal (-18 to -36 VDC).
Wide Range -24/-48 VDC (-18 to -72 VDC).
+24 VDC (+18 to +36 VDC).
D-Wire option.
10/100 BaseT Ethernet switch.
Single or dual power feeds.
Integrated sensor power supply: +12VDC or +24VDC @ 1 Amp maximum (3/4 GMT fuse provided).
Individual serial port 1-4 configuration: RS232, RS485, or 202 modem.
NetGuardian Expansion Models.
NetGuardian DX (expansion unit with 48 discrete points and 8 control relays).
NetGuardian DX G5 (832A model expansion unit with 32 discrete points, 8 analogs, and 8 control relays).
Selectable Configuration Options.
Control relays: none or 8.
Integrated 8 port 10BaseT Switch.
DNP3 Protocol reporting option.

With 2 SFP fiber interfaces, an integrated 1000BaseT Ethernet switch and SNMPv3 support, the new NetGuardian 216F can handle virtually any monitoring need.

Analog Temp Probe
External Temperature Probe with 7-foot lead

This temperature sensor plugs into your NetGuardian's external sensor jack.

SiteMon IP Surveillance Camera

With this camera and RTU in one, you don't need to wonder what's going on at your sites. Connecting directly to the NetGuardian's optional LAN switch, the new SiteMON IP enables you to make security decisions remotely, allowing you to dispatch on-call staff, security, or even police. Available with or without an outdoor enclosure.

Discrete/Analog Sensors
Discrete and Analog Sensors

Fuel tanks, battery power, lighting systems, and water levels are just some of things you need to monitor to keep your network up and running. Track changing network conditions with these discrete & analog sensors.


66 block

A 66 block is a simple way to use wire-wrap connections with DPS RTUs. When telcos really want connections to stay in place, they use wire wrap. You'll simply punch down your alarm, analog, and/or control relay wiring to the 66 block, then connect the 66 block to the RTU using a standard amphenol cable (also available from DPS).


Wire-Wrap Back Panel

The NetGuardian 216's Wire-Wrap back panel allows for wire-wrap connections for the discrete alarms,
analog alarms, and control relays. (D-PK-WWADP)


Pluggable Back Panel

The NetGuardian 216's pluggable back panel allows for screw-in barrier plug connections for your alarms and control relays.

NetGuardian 216 Test Box

The NetGuardian Test Box allows technicians to verify every discrete alarm input, control relay, and voltage-based analog alarm input on a NetGuardian 216, 216T, or 216F. The NetGuardian Test Box is a trusted tool of DPS test technicians.


19" Rack Mounting Ears

The additional 19" Rack Ear secures your NetGuardian 216 G3 to both sides of a rack for added stability. DPS Telecom recommends fastening your NetGuardian with the additional rack ear.

Expand alarm coverage as your site grows by adding NetGuardian DX Expansion units to your NetGuardian 420. With NetGuardian DX expansions, your NetGuardian RTU can scale to the needs of your site. You don't have to deploy new RTUs as your needs grow. You can simply add capacity as needed.

Remember that it's generally better to plan ahead when you can. Try to scale your initial purchase to your medium-term needs.

NetGuardian DX G5.

Expand coverage for your NetGuardian RTU

Add up to three expansion units to your NetGuardian 420 to increase total capacity to 116 discrete alarms, 30 analog inputs, and 28 control relays.

NetGuardian DX G4.

Expand coverage for your NetGuardian RTU

The NetGuardian DX G4 allows you to greatly expand your NetGuardian 420's discrete alarm capacity. Add up to three expansion units to your NetGuardian 420 for a total of 164 discrete points.

NOW AVAILABLE! The Netguardian DX G5.

Pluggable Back Panel.

The hinged pluggable back panel allows for pluggable connections to your NetGuardian's alarms, analog inputs, and control relays.

Wire Wrap Back Panel.

WireWrap BackPanel
The wire wrap back panel allows for wire-wrap connections to your NetGuardian's alarms, analog inputs, and control relays.

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