We Have Your CMC Fleet Management in Mind
CMC Fleet Management
Test set fleet management in a fast-paced product world is becoming increasingly more demanding. With the outstanding life cycles and quality of our products, we’ve always aimed to ease that burden. However, this also means that our product portfolio continues to grow. With some of our test sets having been supported for well over 15 years – and others approaching 20 years of service in the field – we have to say goodbye to some of them. This ensures we can continue delivering the high level of service quality you expect from OMICRON.
| CMC test set – Interface | Year of introduction | Last time buy date | End of calibration | End of repair |
| CMC 356 – NET-1x | 2008 | 2014-12-31 | 2030-12-31 | 2028-12-31 |
| CMC 356 – NET-2 | 2015 | 2026-12-31 | 2036-12-31 | 2036-12-31 |
| CMC 353 – NET-1x | 2010 | 2014-12-31 | 2030-12-31 | 2028-12-31 |
| CMC 353 – NET-2 | 2015 | 2026-12-31 | 2036-12-31 | 2036-12-31 |
| CMC 310 – NET-1x | 2013 | 2014-12-31 | 2030-12-31 | 2028-12-31 |
| CMC 256plus – PAR-1 | 2007 | 2014-12-31 | 2022-12-31 | 2022-12-31 |
| CMC 256plus – NET-1x | 2007 | 2014-12-31 | 2030-12-31 | 2028-12-31 |
| CMC 256plus – NET-2 | 2015 | 2026-12-31 | 2036-12-31 | 2036-12-31 |
| CMC 850 – NET-1x | 2011 | 2014-12-31 | 2030-12-31 | 2028-12-31 |
To help you choose the best available options and reduce redundancies, we are consolidating our product portfolio with the introduction of the CMC 500 – our latest protection relay test set. The CMC 500 sets new benchmarks in safety and cybersecurity and due to its even broader versatility, it easily replaces our previous generations of test sets.
In the following sections you will find all the information you need – from hardware availability to the compatibility of our software and accessories for the CMC 356, CMC 353, CMC 310, CMC 256plus, CMC 850, and the CMC 500.
OMICRON Customer Portal and Phase-out Library
On our Customer Portal, you have access to all the general and product-specific documents you need, along with other important information related to your test devices:
- From Getting-started guides and handbooks to product-specific certificates
- All the latest software versions and test templates for download
- An overview of upcoming on-site trainings, webinars and events
- Access to our extensive knowledge library
- Access to our Phase-out Library, which includes important information for your fleet management, such as last time buy dates, end of hardware upgrades, calibration and repair
Which NET Interface Does Your Device Have?
If you are interested in the availability of our service support and the compatibility of your devices with our testing software and available accessories, please check the NET interface they are using.
Should you need help identifying the NET interface of your devices, you can also contact our Technical Support team and provide them with the serial numbers. The serial number is located on the nameplate of your device’s housing.
The information provided on this page relates to the following interfaces:
- NET-1x (includes NET-1, NET-1B, and NET-1C)
- NET-2
- NET-3
If your device still uses the PAR-1 interface, please check the phase-out library on the Customer Portal for more information.
Last Time Buy Information
Due to the consolidation of our protection relay test set portfolio, we are no longer actively advertising our previous CMC generation. However, the CMC 356, CMC 353, and CMC 256plus can still be ordered.
For the exact last time buy dates please refer to the table below.
| CMC test set | Last time buy date |
| CMC 356 – NET-2 | 2026-12-31 |
| CMC 353 – NET-2 | 2026-12-31 |
| CMC 256plus – NET-2 | 2026-12-31 |
Service Support
We take great pride in the outstanding service support we offer, helping to keep your test sets operational for decades. For the CMC 356, CMC 353, CMC 310, CMC 256plus, and CMC 850 we’ve once again gone to great lengths to secure the necessary components to deliver on our extensive servicing promise and provide you with reliable information regarding the end of service support to simplify your fleet planning.
Our standard service periods apply from the last time buy date. Please refer to the table below for specific dates regarding the end of calibration, repair, and hardware upgrades.
| CMC test set | End of calibration | End of repair | End of NET-2 hardware upgrades | End of LLO-2 hardware upgrades | End of ELT-1 hardware upgrade |
| CMC 356 – NET-1x | 2030-12-31 | 2028-12-31 | 2022-11-14 | 2022-11-14 | 2026-12-31 |
| CMC 356 – NET-2 | 2036-12-31 | 2036-12-31 | 2022-11-14 | 2026-12-31 | 2026-12-31 |
| CMC 353 – NET-1x | 2030-12-31 | 2028-12-31 | 2022-11-14 | 2022-11-14 | - |
| CMC 353 – NET-2 | 2036-12-31 | 2036-12-31 | 2022-11-14 | 2026-12-31 | - |
| CMC 310 – NET-1x | 2030-12-31 | 2028-12-31 | 2022-11-14 | 2022-11-14 | - |
| CMC 256plus – NET-1x | 2030-12-31 | 2028-12-31 | 2022-11-14 | 2022-11-14 | |
| CMC 256plus – NET-2 | 2036-12-31 | 2036-12-31 | 2022-11-14 | 2026-12-31 | - |
| CMC 850 – NET-1x | 2030-12-31 | 2028-12-31 | 2022-11-14 | 2022-11-14 | - |
Supported Software
Alongside the CMC 500 we also released version 5.00 of our software options Test Universe and RelaySimTest. These versions fully support the new CMC 500 but are the last to support devices with a NET-1x interface. All devices with a NET-2 interface will continue to be supported.
| CMC test set | Last supported software version | Last supported operating system |
| CMC 356 – NET-1x | Test Universe 5.00 RelaySimTest 5.10 | Windows 11 |
| CMC 353 – NET-1x | Test Universe 5.00 RelaySimTest 5.10 | Windows 11 |
| CMC 256plus – NET-1x | Test Universe 5.00 RelaySimTest 5.10 | Windows 11 |
| CMC 850 – NET-1x | Test Universe 5.00 RelaySimTest 5.10 | Windows 11 |
Please note that we’ve also put special effort into ensuring that old OCC files will run either flawlessly or with only minor adaptations on the new CMC 500. If you encounter any issues, please don’t hesitate to contact our Technical Support team for assistance.
Supported Accessories
Our extensive accessory portfolio enables you to cover a wide range of testing applications with your CMC. While most accessories are compatible with all NET interfaces, there are some exceptions. In addition, a few accessories are currently being adapted to ensure flawless compatibility with the new CMC 500.
For the details, please refer to the table below or contact our Technical Support team.
| Accessory | NET-1x | NET-2 | NET-3 |
| ARC 256x | ✅ | ✅ | ❌ |
| ASH1 | ❌ | ❌ | ✅ |
| CMA 156 | ✅ | ✅ | ✅ |
| CMA 56 | ✅ | ✅ | ✅ |
| CMB IO-7 | ❌ | ❌ | ❌ |
| CMGPS | ✅ | ✅ | ❌ |
| CMGPS 588 | ❌ | ✅ | ✅ |
| CMIRIG-B | ✅ | ✅ | ❌ |
| CMLIB 7Sx8 | ✅ | ✅ | ❌ |
| CMLIB A | ✅ | ✅ | ❌ |
| CMLIB B | ✅ | ✅ | ❌ |
| CMLIB REF 6xx | ✅ | ✅ | ❌ |
| CMS 156 | ✅ | ✅ | ✅ |
| CMS 356 | ✅ | ✅ | ✅ |
| CPOL3 | ✅ | ✅ | ✅ |
| EMCON 200 | ✅ | ✅ | ✅ |
| IFB 256 | ✅ | ✅ | ❌ |
| ISIO 200 | ✅ | ✅ | ✅ |
| LLX1/LLX2/LLX3 | ❌ | ❌* | ✅ |
| Mini wireless USB adapter | ❌ | ✅ | ✅ |
| OSH 256 / OSH 256R | ✅ | ✅ | ✅ |
| OTMC 100p | ❌ | ✅ | ✅ |
| REF 54x cable connector | ✅ | ✅ | ❌ |
| RIB1 | ✅ | ✅ | ❌ |
| RIR1 (Intellirupter) | ✅ | ✅ | in revision |
| RXB1 | ✅ | ✅ | ❌ |
| SEM 1/2/3 | ✅ | ✅ | ❌ |
| SER 1 | ✅ | ✅ | ❌ |
| SH 2015 | ✅ | ✅ | ✅ |
| TK 326 | ✅ | ✅ | ✅ |
| TWX1 | ❌ | ✅ | ✅ |
| VBO3 | ✅ | ✅ | ✅ |
* Only compatible with the CMC 430
Technical Support
As always, our highly qualified engineers on the Technical Support team continue to assist you 24/7 with any questions related to the CMC 356, CMC 353, CMC 310, CMC 256plus, and CMC 850, or any of our other testing devices.
Here’s what you can expect:
- Assistance with operating our test sets and their software
- Support during measurements and with analyzing measurement results
- Advice on technical queries regarding installations
- Guidance with technically complex and challenging applications
You can find all relevant details on our Technical Support page. If you are looking for general information or product-specific documents related to your test devices, please visit our Customer Portal.