In future, the Failsafe Network Multiplexer (FNmux) from the Indian signalling technology manufacturer Deltron will be able to control automatic line blocks in India. The SIL 4 platform solution, based on the safe, modular railway control system PSSrail from the automation expert Pilz monitors interlockings, level crossings and signals. FNmux now has the necessary railway approval and is making a decisive contribution to the digitisation of the Indian railway infrastructure.
Ostfildern, Jul 22, 2025
Indian approval for the PLC-based Failsafe Network Multiplexer from Deltron and Pilz - One platform for all signalling tasks
FNmux is the result of a long-term collaboration between Deltron and the automation expert Pilz. In March, FNmux was officially approved by the Indian supervisory authority "Research Design and Standards Organisation" (RDSO).
A safe package
The SIL 4-capable signalling solution FNmux combines safety and control intelligence to monitor level crossings, interlockings and signals in automatic line blocks in a particularly cost-effective manner. The multiplex method is used, i.e. several signals are transferred simultaneously via optical fibre. FNmux thus enables technology openness, which is a crucial requirement in the rapidly growing Indian infrastructure. The innovation lies in the solution's modularity: via the inputs and outputs of the railway control system PSSrail, the solution can be adapted flexibly to a variety of applications in the extensive Indian Railways network, and is easily configured. With its real-time response, redundancy and reliability, PSSrail offers additional strengths when used at Deltron.
Future-proof railway control system
With this jointly developed solution, Deltron and Pilz are laying an important foundation for the digitisation of India's railway infrastructure. FNmux can be connected to other components across a range of manufacturers and is therefore equipped for digitisation tasks.
Top
Headoffice
Pilz GmbH & Co. KG
Felix-Wankel-Straße 2
73760 Ostfildern
Germany
Telephone: +49 711 3409-0
E-Mail: info@pilz.de
Corporate and Technical Press
Telephone: +49 711 3409 - 0
E-Mail: publicrelations@pilz.com
Americas
- United States (toll-free): +1 877-PILZUSA (745-9872)
- Mexico: +52 55 5572 1300
- Brazil: + 55 11 4942-7032
- Canada: +1 888-315-PILZ (315-7459)
Europe
- Austria: +43 1 7986263-444
- Turkey: +90 216 577 55 52
- Russia: +7 495 6654993
- Belgium: +32 9 321 75 70
- United Kingdom: +44 1536 460866
- France (toll-free): +33 3 88104000
- Finland: +358 10 3224030 / +45 74436332
- Netherlands: +31 347 320477
- Italy: +39 0362 1826711
- Ireland: +353 21 4804983
- Portugal: +351 229 407 594
- Denmark: +45 74436332
- Spain: +34 938497433
- Switzerland: +41 62 889 79 32
- Germany: +49 711 3409 444
- Sweden: +46 300 13990 / +45 74436332
Asia Pacific
- Thailand: +66 210 54613
- Japan: +81 45 471 2281
- Singapore: +65 6829 2920
- New Zealand: +64 9 6345350
- China: +86 400-088-3566
- Australia (toll-free): +61 3 9560 0621 / 1300 723 334
- Taiwan: +886 70 1015 0068 (ç¶å°ç¶²è·¯é»è©±)
- South Korea: +82 31 778 3390