Engineered to EN 50155
Built for the temperature, shock, vibration, and EMC realities of rail service, so the control brain of your train performs reliably for the life of the rolling stock.
Rail & Rolling Stock · Made in India
TCMS Unit: The Brain of the Train
The Bacancy Systems TCMS Unit monitors and commands traction, braking, doors, HVAC, and passenger information over MVB and TRDP, engineered to EN 50155 for continuous rail duty. Designed, populated, and tested in-house in Ahmedabad, it is the control brain that keeps every rolling stock subsystem working in step.
- EN 50155
- MVB / TRDP
- Train Control
- Rolling Stock
Technical Overview
TCMS Unit Technical Specifications
Every specification here is proven by our own engineers. Bacancy Systems' rolling stock team designs, populates, and tests each board in-house at Ahmedabad, backed by 16+ years of embedded engineering across EN 50155, IEC 61375, and mission-critical rail electronics. It is world-class railway technology, engineered in India and built to serve fleets anywhere.
| Parameter | Specification |
|---|---|
| Standard Compliance | EN 50155 & EN 45545-2 (rolling stock electronics & fire safety) |
| Communication Protocols | MVB (Multifunction Vehicle Bus) | TRDP per IEC 61375 | CAN | Ethernet |
| Supply Voltage | 24 V DC to 110 V DC nominal, per EN 50155 voltage classes |
| Operating Temperature | EN 50155 Class TX: −40 °C to +70 °C |
| Shock & Vibration | EN 61373 Category 1, Class B |
| Digital I/O | Configurable digital inputs / outputs |
| Diagnostics | Real-time subsystem monitoring, event logging, remote diagnostics support |
| Ingress Protection | IP54 enclosure |
| Display Interface | Driver HMI display support (see Bacancy Systems HMI Display) |
| Origin | Designed, populated & tested in-house at Ahmedabad, India |
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Years of embedded engineering
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Rail & rolling stock products
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Facilities in Ahmedabad, India
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In-house design & test
Why Bacancy Systems TCMS
The Control Brain Your Rolling Stock Can Rely On
A TCMS is the highest-consequence electronic system on a train. Bacancy Systems builds it the way rail demands: standards-first hardware, protocol-native communication, and a validation toolchain that proves the logic before it ever boards the rake.
01 02 MVB + TRDP on One Platform
Native support for both the Multifunction Vehicle Bus and Ethernet-based TRDP under IEC 61375 lets one TCMS platform serve legacy fleets and modern train architectures alike.
03 Full Subsystem Visibility
Monitor and control traction, braking, doors, HVAC, and passenger information from a single unit, with event logging and diagnostics that cut fault-finding time in the depot.
04 Validated Before It Boards
Pair the unit with Bacancy Systems' TCMS Simulator and TRDP System Validator to prove out control logic on the bench, before commissioning on the train.
05 One Vendor, Full Rail Stack
TCMS, traction control, HMI displays, event recorders, and remote monitoring from a single Indian manufacturer. One integration partner, no finger-pointing between suppliers.
Where It Runs
Built for Every Class of Rolling Stock
From dense metro headways to long-haul mainline duty, the same TCMS platform adapts across fleet types, and its modular MVB / TRDP / CAN support makes it equally suited to new builds and mid-life retrofit programs.
Metro and suburban EMU rakes
Mainline passenger coaches and locomotives
Semi-high-speed trainsets
DEMU and hybrid rolling stock
Rolling stock refurbishment and TCMS retrofit programs
Get In Touch
Tell us what you're building.
Share a few details about your project — power class, timeline, certifications you need — and our embedded engineers will respond within one business day with a tailored proposal, not a sales pitch.
Email
[email protected]
Phone (Indian HQ)
+91 99099 33000
Corporate House
15-16, Times Corporate Park, Thaltej, Ahmedabad, Gujarat 380059
<24h
Avg response time
90%
Repeat client rate
96%
Project success rate
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FAQ
TCMS Unit: Frequently Asked Questions
A Train Control and Management System (TCMS) is the central control computer of a train. It monitors and coordinates rolling stock subsystems, including traction, braking, doors, HVAC, and passenger information, over train communication networks such as MVB and Ethernet-based TRDP, giving the driver and maintenance teams a single point of control and diagnostics.
Yes. The Bacancy Systems TCMS unit is engineered to EN 50155, the international standard for electronic equipment used on rolling stock, covering temperature, humidity, shock, vibration, and EMC requirements for reliable operation in rail environments.
The unit supports the Multifunction Vehicle Bus (MVB) and the Train Real-time Data Protocol (TRDP) under the IEC 61375 Train Communication Network family, enabling integration with both legacy and modern Ethernet-based rolling stock architectures.
Yes. Bacancy Systems also builds a TCMS Simulator that recreates train subsystems on the bench and a TRDP System Validator that verifies protocol communication, so engineering teams can validate control logic before it goes on the train.
Every board is designed, populated, and tested in-house at Bacancy Systems' facilities in Ahmedabad, India. It is a Make in India product backed by 16+ years of embedded engineering experience.
Complete The Stack
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