Replacing Discontinued Monitoring Equipment

Your original manufacturer stopped making your Remote Telemetry Units (RTUs), alarm master station, or sensors. Replacement parts are unavailable, technical support has ended, and every failed unit leaves a gap in your network visibility. DPS Telecom builds direct replacement monitoring hardware, including custom-engineered solutions designed to match your existing wiring, protocols, and rack layout, so you can restore full coverage without redesigning your entire monitoring infrastructure.

Talk to an Engineer | 800-693-0351

Founded 1986 | 172,800+ devices deployed | ISO 9001 certified | Made in Fresno, CA | 1,500+ organizations served

What Happens When Your Monitoring Vendor Walks Away

When a manufacturer discontinues a product line, the impact on your operations is gradual but serious. The equipment itself may still function, but the support ecosystem around it disappears. Spare parts dry up, firmware updates stop, and technical support either ends or gets handed off to a team that doesn't know the product. Eventually, you're running critical infrastructure on gear that nobody can fix if it breaks.

• No Replacement Parts Available Stockpiles run out, third-party resellers mark up remaining inventory, and each failed unit becomes a permanent monitoring gap.
• Technical Support Has Ended The manufacturer's engineers have moved on to other product lines. When you call in with a problem, you get redirected or disconnected.
• Firmware and Security Updates Have Stopped Your equipment runs on software that will never be patched, leaving known vulnerabilities unaddressed and compatibility with newer infrastructure unresolved.
• Vendor Lock-In With No Vendor Proprietary protocols and connectors that once locked you into an ecosystem now lock you out of progress. No one is developing for the platform anymore.
• Growing Risk With Every Failure Each unit that goes down reduces your visibility into remote site conditions, and you have no path to restore it without a full system redesign.

How DPS Telecom Replaces Discontinued Equipment

Rather than forcing you to rip out your entire monitoring infrastructure, DPS Telecom designs replacement hardware that works within your existing setup. Our engineering team studies the discontinued equipment's pinouts, protocols, form factor, and input/output (I/O) configuration, then builds a NetGuardian RTU or T/Mon alarm master variant that plugs into the same wiring, fits the same rack space, and communicates with the rest of your network.

The process starts with a virtual prototype, a photorealistic mockup of the proposed replacement unit so you can evaluate form factor, port layout, and labeling before any manufacturing begins. From there, DPS can typically deliver a finished device for field trial within approximately two months. When your order exceeds approximately 11 units, there are no Non-Recurring Engineering (NRE) fees for the custom development.

Talk to an Engineer | 800-693-0351

Capabilities That Matter for Equipment Replacement

The core challenge with replacing discontinued gear is matching what the old equipment did while adding the capabilities you need going forward. DPS replacement hardware is designed to handle both.

• Drop-In Physical Compatibility Custom rack dimensions, connector layouts, and wiring maps engineered to match your existing site infrastructure. The goal is zero re-wiring at the remote site.
• Proprietary Protocol Mediation If your discontinued equipment used a proprietary protocol, DPS can build mediation into the replacement unit or into T/Mon LNX so alarms from older gear still reach your operations center in a format your team can use.
• Same I/O Capacity or Better Replacement units are configured to match the discrete alarm inputs, analog channels, and control relay outputs of the discontinued hardware, with room to add capacity if your monitoring scope has grown.
• Multiple Transport Options NetGuardian RTUs support Ethernet, cellular (Global System for Mobile Communications (GSM)/Code Division Multiple Access (CDMA) via external gateway), satellite (via external gateway), fiber, T1, serial, and dialup, so you can match whatever transport your existing infrastructure uses.
• SNMP Reporting to Any Manager Every NetGuardian RTU supports Simple Network Management Protocol (SNMP) v1, v2, and v3, allowing your replacement units to report to third-party management platforms like SolarWinds, Castle Rock, or any standard SNMP manager, not just DPS equipment.
• Built-In Environmental Monitoring Replacement units can include temperature, humidity, water detection, and door access monitoring via D-Wire sensors, giving you capabilities the discontinued equipment may never have offered.

Recommended Equipment for Replacement Projects

The right replacement depends on the discontinued unit's I/O capacity, transport requirements, and site conditions. These are the products most commonly deployed in equipment replacement projects.

NetGuardian 832A G5

The most common replacement for discontinued RTUs in telecom and utility environments. Configurable discrete, analog, and control relay capacity fits a wide range of site requirements.

• 32 discrete alarm inputs, 8 analog channels
• Supports SNMP v1/v2c/v3, Distributed Network Protocol 3 (DNP3), Modbus
• Ethernet, serial, T1, and fiber transport options
• Web-based local and remote configuration
• Expandable I/O with plug-in modules

View Product Page

T/Mon LNX

When you need to replace a discontinued master station or consolidate alarms from mixed equipment, T/Mon LNX acts as the central monitoring platform. It supports 25+ protocols, allowing it to collect and normalize alarms from both DPS and third-party equipment.

• Multiprotocol support including SNMP, DNP3, Modbus, Transaction Language 1 (TL1), American Standard Code for Information Interchange (ASCII)
• Collects alarms from thousands of RTUs across multiple protocols
• Web-based alarm display with escalation and notification rules
• Integrates with third-party SNMP managers as a forwarding source

View Product Page

NetGuardian DIN

A compact replacement option for smaller sites or locations where standard rack-mount form factors do not fit. DIN-rail mounting makes it suitable for utility cabinets, traffic signal enclosures, and smaller telecom shelters.

• DIN-rail mounting for non-standard enclosures
• Discrete alarm inputs and analog monitoring
• SNMP v1/v2c/v3 reporting
• Ethernet connectivity

View Product Page

Working With Your Existing Infrastructure

Compatibility with your current systems is the most important factor in a replacement project. If the new equipment forces you to replace everything else too, the cost and risk multiply. DPS designs replacement hardware specifically to work with what you already have.

Your discontinued RTUs may have communicated using a protocol that no other manufacturer supports. T/Mon LNX handles this through legacy alarm integration, mediating between protocols so it can receive alarms from older equipment running proprietary or specialized protocols and present them alongside alarms from modern SNMP-based gear in a single unified display. DPS has added protocol support on a client-by-client basis for years, and the platform's 25+ protocol library exists specifically because clients brought us equipment running protocols that nobody else could integrate.

NetGuardian RTUs also report to third-party SNMP managers, so if you already run SolarWinds, Castle Rock, or another enterprise network management platform, your replacement RTUs can feed directly into that system without requiring T/Mon.

• SNMP (v1, v2, v3 with encryption)
• DNP3
• Modbus
• TL1
• ASCII text-based protocols
• DPS Communication Protocol (DCP)
• Custom protocol development available on request

Industries We Serve With Replacement Equipment

Equipment discontinuation affects every industry that relies on remote monitoring. DPS Telecom has built replacement solutions for organizations across these sectors.

• Telecommunications Rural telcos, regional carriers, and fiber providers frequently encounter discontinued RTUs from vendors who have exited the market or been acquired. DPS builds drop-in replacements that restore monitoring across central offices, remote terminals, and cell sites.
• Electric Utilities Utilities with hundreds of substations and distribution points may run monitoring equipment that predates current SNMP and DNP3 standards. DPS replacement units bridge the gap between existing infrastructure and modern protocols.
• Public Safety Police, fire, and emergency dispatch networks depend on continuous monitoring of radio towers and dispatch infrastructure. When the original monitoring vendor disappears, DPS provides replacements that maintain 24/7 visibility into these critical systems.
• Transportation Rail systems, transit authorities, and departments of transportation run monitoring equipment in tunnels, along track corridors, and at remote communication sites. DPS builds replacement hardware rated for the environmental conditions these sites present.
• Government and Military Federal, state, and county agencies often face long equipment lifecycles and budget cycles that outlast manufacturer support periods. DPS replacement projects accommodate procurement processes and deliver equipment that meets government durability and documentation requirements.

Why DPS Telecom for Equipment Replacement

• Custom Engineering at No Extra Cost DPS routinely develops custom replacement hardware matched to your exact specifications. Virtual prototyping, rapid development (typically under 90 days), and no NRE fees on orders above approximately 11 units. Over 9,800 customized builds delivered to date.
• Free Lifetime Tech Support Every piece of DPS equipment ships with free lifetime technical support from the engineers who designed it. No script readers, no call center. When you contact DPS support, you reach someone who understands the hardware.
• 30-Day Loaner, 2-Year Warranty, Money-Back Guarantee Evaluate replacement equipment in your actual environment for 30 days (you only pay shipping). Every unit ships with a 2-year hardware warranty, and if the solution doesn't meet your needs, you get a full refund.
• Made in Fresno, California, ISO 9001 Certified DPS designs, manufactures, and tests all equipment at its own facilities. This vertical integration means faster turnaround on custom projects, consistent quality control, and direct communication with the engineering team building your replacement hardware.

Talk to an Engineer | 800-693-0351

Replacement Projects in the Field

• Dominion (Energy) Unified three separate legacy alarm systems into one platform Dominion used T/Mon to bring three separate legacy alarm systems into a single platform without replacing the underlying field equipment, consolidating monitoring visibility while extending the useful life of existing infrastructure.
• Southeast Nebraska Communications (Telecom) Replaced discontinued DMS-10 monitoring with contact closure monitoring Southeast Nebraska Communications transitioned from discontinued switch equipment to DPS hardware for contact closure monitoring across their telecom network, maintaining alarm coverage through the technology transition.
• San Juan County, New Mexico (Public Safety) Migrated legacy alarm monitoring for public safety dispatch San Juan County completed a legacy alarm monitoring migration for their public safety dispatch operations, replacing discontinued equipment with DPS hardware to maintain reliable monitoring of emergency communications infrastructure.

Can DPS replace monitoring equipment from other manufacturers?

Yes. DPS Telecom regularly builds replacement RTUs, master stations, and sensors for equipment originally manufactured by other companies. The engineering team studies the discontinued product's specifications and develops a replacement that matches your existing wiring, protocols, and rack configuration.

Do I need to replace my entire monitoring system at once?

No. DPS replacement equipment is designed to integrate with your existing infrastructure. You can replace discontinued units at individual sites while keeping the rest of your monitoring system in place, including equipment from other manufacturers.

How long does it take to develop a custom replacement?

DPS can typically deliver a custom-engineered replacement device for field trial within approximately two months of finalizing specifications. The process begins with a virtual prototype so you can evaluate the design before manufacturing starts.

Will the replacement equipment work with my existing master station or SNMP manager?

NetGuardian RTUs support SNMP v1, v2, and v3, so they can report to any standard SNMP manager. If your existing master station uses a different protocol, T/Mon LNX can mediate between protocols to maintain compatibility with both old and new equipment.

What if my discontinued equipment uses a proprietary protocol?

DPS has developed support for 25+ protocols specifically because clients needed them. If your existing equipment runs a protocol DPS doesn't already support, the engineering team can evaluate adding support for it. T/Mon LNX's protocol library grew from exactly this kind of client-driven development.

Start Your Replacement Project

If your monitoring equipment manufacturer has discontinued your product line, DPS Telecom can help you restore full network visibility without a complete system overhaul. Our engineering team will evaluate your existing setup and design replacement hardware that fits your infrastructure, your protocols, and your budget. Every project includes a 30-day equipment loaner, a 2-year hardware warranty, a money-back guarantee, and free lifetime tech support.

Talk to an Engineer | 800-693-0351