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Reserve Your Seat TodayWhen a vendor discontinues an RTU, you're left with a shrinking window before spare parts dry up and technical support ends. At DPS Telecom, we've specialized in replacing discontinued and obsolete monitoring equipment since 1986. We've developed over 9,800 custom configurations for organizations whose original vendor could no longer provide what they needed.
Talk to an Engineer | 800-693-0351
Most RTU replacements are triggered by one of three situations:
If any of these apply, waiting through a standard 12-18 month procurement cycle isn't usually an option. DPS Telecom routinely delivers custom-engineered replacement solutions in approximately 90 days or less.
The most common complication in RTU replacement is protocol support. Your existing alarm master or network management platform expects specific protocols: SNMP, TL1, DNP3, Modbus, or any number of other legacy formats. A replacement RTU needs to speak those same protocols, or you'll be forced to reconfigure your entire management layer at the same time.
Our NetGuardian RTUs support a broad range of standard and legacy protocols. When your exact protocol isn't already in our library, our engineers can develop support for it as part of your order.
A compatible replacement also needs to match your site's transport infrastructure. NetGuardian RTUs support Ethernet, serial, T1, fiber, GSM/CDMA cellular (via external gateway), satellite (via external gateway), and dialup. This covers everything from modern IP networks to legacy circuits still running in the field.
Make sure the replacement matches or exceeds the discrete inputs, analog inputs, and control relay outputs your current setup depends on. NetGuardian units also monitor temperature, humidity, water intrusion, smoke, and door access, which can close coverage gaps your legacy RTU may have left open.
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We don't assume our standard catalog solves every replacement scenario. The process typically works as follows:
If you're replacing existing DPS equipment, we offer a 20% trade-in credit toward newer models.
The NetGuardian family covers a wide range of site types and capacity requirements.
| Model | Best For |
|---|---|
| NetGuardian 832A | High-capacity data transport and telecom sites |
| NetGuardian 216 | Smaller sites with moderate I/O requirements |
| NetGuardian 480 | Medium-capacity networks |
| NetGuardian DIN | DIN-rail installations in compact enclosures |
| TempDefender G2 | Environmental-only monitoring (temperature, humidity, sensors) |
If none of these are the right fit, we can modify an existing model or engineer a new one to your specifications. Our article on choosing a multiprotocol RTU for legacy equipment integration covers the key decision factors in more depth.
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Yes. As long as we can match the protocol your management platform uses to collect alarms, a NetGuardian can replace RTUs from other manufacturers.
We can develop support for it. T/Mon currently supports 30+ protocols specifically because clients brought us requirements over the years that weren't covered by anything available.
Custom-engineered solutions are typically field-ready within approximately 90 days. Standard catalog models ship faster.
Yes. DPS Telecom provides free lifetime technical support and training with every purchase, handled by engineers, not call center staff.
We work with organizations of all sizes, from single-RTU installations to networks covering 1,000+ sites.
Tell us what you're replacing, what protocols and transport types are involved, and how many sites you need to cover. Our application engineers will assess your requirements and recommend the right path forward at no obligation.
