Fieldbus & Industrial Networking


Improved networking technology for fire and gas detection

May 2025 Fieldbus & Industrial Networking

Critical alarm and event management technology supplier, Omniflex has worked with the South African Nuclear Energy Corporation (NECSA) to upgrade equipment providing digital and analogue signals for NECSA’s safety critical fire and gas alarm systems. The new Teleterm M3 remote terminal units (RTUs), which use the company’s proprietary conet technology, require minimum wiring changes to existing panels at its Hartbeespoort Dam site, 30km outside of Pretoria, making the upgrade installation quick and disruption-free.

Teleterm M1 and M2 telemetry RTUs replaced the original Conet squeezer units which were originally installed by Omniflex in the 1980s and 90s for the then Atomic Energy Board. The Teleterm units provide the same functionality while reducing the spares holding requirement by being transceivers – rather than being transmitters and receivers – and allow mixed analogue and digital signals.

Using Teleterm modules allows the site to use the same Conet networking topology across its 127 outstation units allowing them all to be connected via existing copper cable, but replacing any legacy equipment that has become faulty because of age or external factors such as lightning strikes.

“Using the Teleterm M series reduces the installation costs by using the existing cabling and panel space, helping to bring about significantly reduced engineering and configuration time,” explained Ian Loudon, international sales and marketing manager at Omniflex. “This allows us to replace a small part of the existing system with minimal disruption so it continues to work as well as it has done since installation.”

Providing this new equipment for its outstation units allows the NECSA plant to maintain its fire and gas safety critical alarm detection systems alongside its nuclear radiation monitoring capabilities. Existing cable to the fire station control room allows for cost savings and minimal interruption across the site. All outstation alarms from the entire campus are displayed on Omni16 Annunciator panels for duty staff to action from the fire station. Omniflex was also on hand to provide on-site commissioning assistance and technician training for the new system to ease the transition to the latest technology.

The Teleterm M3 RTU and M1 units are the latest iteration of the industry-proven RTU range that Omniflex has provided over its 60-year history, still supporting customers who first adopted the technology decades ago.


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

PC-based control for fertiliser
Beckhoff Automation Editor's Choice Fieldbus & Industrial Networking
On a farm in the USA, valuable ammonia is extracted from slurry and processed into ammonium sulphate. NSI Byosis has transformed this complex process into a flexible modular system. This modular approach requires an automation solution with flexible scalability in both hardware and software, which this Dutch company has found in PC-based control from Beckhoff.

Read more...
Loop signature 28: Things to consider when tuning.
Michael Brown Control Engineering Editor's Choice Fieldbus & Industrial Networking
I was giving a course at a remote mine in the middle of the Namibian desert. We were discussing tuning responses, and as I always do on my courses, I mentioned that in my opinion ¼ amplitude damped tuning is not desirable, and is in fact not good.

Read more...
Novel closed-loop CP technology for corrosion control
Omniflex Remote Monitoring Specialists Industrial Wireless
Cathodic protection specialist, Omniflex has collaborated with researchers at Deakin University to develop corrosion monitoring electronics for a novel closed-loop cathodic protection system for localised corrosion control in challenging industrial environments.

Read more...
How industrial network design impacts ESG commitments
Omniflex Remote Monitoring Specialists Fieldbus & Industrial Networking
In safety-critical industries like nuclear, petrochemical and oil and gas, installing a new industrial cable network is an extremely complicated task. Gary Bradshaw, a director of industrial network specialist, Omniflex explains why this is often unnecessary as plants are likely to have existing cabling capable of being used to create new industrial networks.

Read more...
How CP system design can support ESG commitments
Omniflex Remote Monitoring Specialists Industrial Wireless
Major infrastructure like wharves, bridges, pipelines and tanks are under constant threat of corrosion, which can render them unsafe. David Celine, managing director of cathodic protection specialist, Omniflex explains how CP system design can support ESG commitments while simultaneously lowering costs and improving maintenance capabilities.

Read more...
Minelert industrial solutions
Fieldbus & Industrial Networking
Profitek provides cutting-edge industrial networking, automation and IoT solutions for harsh environments.

Read more...
The ultimate industrial LoRaWAN gateway
Fieldbus & Industrial Networking
The GW-101-LORA-4AO is the ultimate industrial LoRaWAN gateway, combining advanced IoT connectivity with expandable I/O.

Read more...
Industrial Power-over-Ethernet DC injector
Fieldbus & Industrial Networking
The ML-NET-INJECT series sets the standard for industrial PoE, featuring IP68-rated RJ45 connectors and military-grade components for extreme reliability.

Read more...
Industrial networking IO-Link
Fieldbus & Industrial Networking
Balluff IO-Link Network Modules enable seamless, intelligent communication between sensors, actuators and control systems. Designed for Industry 4.0, they provide real-time data exchange, simplify wiring, and enhance diagnostics.

Read more...
Hirschmann Lemur PoE Light Management Series
Fieldbus & Industrial Networking
The Hirschmann Lemur PoE Light Management Series provides intelligent power and lighting control for industrial environments as an edge switch.

Read more...