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Custom Trap 48RA RTU For MCC 7500 Dispatch Alarm Monitoring At Motorola Solutions

Motorola Solutions needed a new way to monitor its radio systems and present failure conditions to dispatchers on the Motorola MCC 7500 Dispatch Console. DPS Telecom custom-engineered a Trap 48RA RTU to process SNMP traps and drive local alarm notification and relay outputs, helping Motorola Solutions meet customer-requested monitoring needs.


Industry Public safety communications and radio systems
Company Motorola Solutions
Primary Challenge Provide a customer-requested method to monitor radio systems and notify dispatchers on MCC 7500 when failure conditions occur
Solution Deployed Custom-built Trap 48RA RTU for SNMP trap processing, audible alarm triggering, and relay output control
Key Result Enabled an efficiency-improving monitoring feature customers had requested; the project earned First Place recognition for its white paper at Motorola's engineering symposium
Products Used Trap 48RA RTU (custom-engineered)

Client Overview

Motorola Solutions products and services are used in a wide range of workplaces, from retail and warehousing to public safety operations and secure government environments. Motorola Solutions partners closely with customers to understand how technology can support specific operational requirements across these industries.

For this project, Tom Vedder, Principal Staff Engineer for Motorola Solutions, set out to improve radio system monitoring capabilities based on direct customer requirements.

Tom Vedder, Principal Staff Engineer, Motorola Solutions
Tom Vedder - Principal Staff Engineer - Motorola Solutions

The Challenge

Vedder needed a new method to monitor Motorola's radio systems. With specific requirements coming from Motorola customers, he researched options for alarm monitoring equipment and ultimately contacted DPS Telecom for support on a custom engineering project.

In public safety environments, operational teams often need more than just raw device telemetry. They need alarms normalized into clear failure conditions, delivered to the right users, and presented where they already work. In this case, that meant immediate notification on the Motorola MCC 7500 Dispatch Console when failures occur.

"Implementing the Trap 48RA on our systems allows us to provide our customers with a feature which they have been asking for years. It allows them to operate more efficiently by knowing when failure conditions occur."


The DPS Telecom Solution

On the advice of a colleague, Vedder reached out to DPS Telecom. After evaluating the project requirements, Vedder and the design team selected a custom-built Trap 48RA RTU as the best-fit solution.

The Trap 48RA is a medium-capacity RTU designed to process SNMP traps and alert dispatchers immediately on the Motorola MCC 7500 Dispatch Console when a failure scenario occurs. In practical terms, the RTU receives SNMP trap messages from monitored systems, translates them into actionable alarm conditions, and then triggers notification outputs that operators can use for local annunciation or downstream integrations.

To provide sufficient monitoring and notification capability, the Trap 48RA supports:

  • 16 audible alarm notifications (for immediate, on-site alerting)
  • 48 relay outputs (for driving external annunciators, interface points, or other alarm-handling equipment)

For deployment, the unit's industrial-grade housing and rack-mountable form factor helped Motorola Solutions install the device alongside existing equipment and bring the monitoring method online efficiently.

When organizations need SNMP trap processing that also interfaces cleanly with operations (audible alerts, relays, and structured alarm handling), DPS Telecom RTUs are commonly chosen because they combine telecom-grade reliability with integration-friendly I/O. In cases where standard configurations do not exactly match the application, DPS Telecom's custom RTU engineering can tailor the device to the monitoring workflow without forcing the customer to redesign their operational processes.

"Implementing the Trap 48RA on our systems allows us to provide our customers with a feature which they have been asking for years," Vedder added. "It allows them to operate more efficiently by knowing when failure conditions occur."


Support And Engineering Collaboration

In addition to the technical fit, Motorola Solutions highlighted the experience of working with DPS Telecom during the design effort.

"I am very pleased with DPS support. I felt like your only customer since I was working with the President throughout most of the design! Big company... with a small company feel."

Trap 48RA custom RTU drawing for Motorola Solutions

Results

The Trap 48RA implementation enabled Motorola Solutions to offer customers a monitoring capability they had been requesting for years: timely awareness of failure conditions. By processing SNMP traps and presenting alarms in the dispatch environment, the solution supported more efficient operation by ensuring that failure conditions were recognized as they occurred.

Motorola also hosts an annual engineering symposium where field engineers across the nation present white papers. Submissions are judged on multiple factors, and awards are given to the top three entries.

When the white paper detailing Vedder's project and the use of the Trap 48RA was reviewed, it received First Place recognition for providing an efficient solution that met precise customer needs.


Key Takeaways

  • SNMP trap monitoring can be operations-ready when trap processing is paired with outputs (audible and relay) that support dispatch and field workflows.
  • Custom RTU engineering can reduce risk when the monitoring requirement is specific and must align to existing consoles and operational processes.
  • Medium-capacity alarm processing (Trap 48RA) can be a practical fit when the application needs dozens of discrete actions (48 relays) and local annunciation (16 audible alerts).

Products Used In This Solution


Industry And Challenge FAQ

What is an RTU in an alarm monitoring application?

An RTU (remote telemetry unit) collects status information and alarms from equipment and converts them into outputs or messages that operations teams can act on. Depending on the design, an RTU can accept discrete inputs, process SNMP traps, and control relay outputs to drive external alarm indicators or interface to other systems.

What are SNMP traps, and why are they used for radio and network monitoring?

SNMP traps are event messages sent by devices to report a condition change (for example, a failure scenario). Trap-based monitoring is often used because it can deliver immediate notifications without requiring the monitoring system to poll continuously.

Why are relay outputs useful for dispatch and operations integrations?

Relay outputs provide simple, reliable electrical contacts that can trigger downstream devices like annunciators or interface points. They are commonly used when an alarm needs to drive an external action in addition to on-screen notification.

When should a team consider a custom RTU instead of an off-the-shelf unit?

A custom RTU is a good fit when a project has strict requirements for I/O count, packaging, or integration behavior (for example, specific alarm-to-output mappings tied to a dispatch workflow). DPS Telecom supports custom engineering when standard monitoring products do not exactly match the operational need.


Talk With DPS Telecom

If you need SNMP trap monitoring, relay-driven alarm outputs, or a custom-engineered RTU to integrate with existing dispatch or operations tooling, DPS Telecom can help you define the I/O and alarm requirements and deliver a fit-for-purpose solution.

Get a Free Consultation or call 1-800-693-0351 to speak with a DPS Telecom expert about your project.