Description
Product Overview
The ALSTOM TRVC062105000 TRVC070938000 TRVC070938005.A is a legacy ALSTOM TRVC-series control module used as a rack-mounted PCB within compatible control architectures. The three identifiers are repeatedly grouped together in product catalogs, with TRVC070938005.A providing an important board/revision reference for replacement sourcing.
The ALSTOM TRVC062105000 should be viewed as system-specific control hardware rather than a generic PLC I/O module. Available descriptions place the TRVC family in railway and industrial control environments, with signals routed through the host rack backplane. One technical listing describes mixed analog/digital signal handling through the backplane and identifies the module as a plug-in rack board. The available public documentation does not establish a sufficiently reliable channel count, processor specification, or exact electrical I/O configuration.
The ALSTOM TRVC070938000 and TRVC070938005.A references are particularly useful for configuration control. The .A suffix should not be ignored when ordering a spare: secondary documentation specifically notes that TRVC revisions can be relevant to software interlocks and diagnostic behavior. This is a typical concern with legacy railway electronics, where two physically similar boards can have different firmware, component revisions, or vehicle-specific configurations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ALSTOM |
| Primary Part Number | TRVC062105000 |
| Associated Part Number | TRVC070938000 |
| Board/Revision Number | TRVC070938005.A |
| Product Family | TRVC |
| Product Type | Control Module / PCB Assembly |
| Application | Railway and industrial control systems |
| Installation | Rack-mounted plug-in module |
| Host Interface | Backplane / edge connector |
| Field Terminals | Not confirmed; backplane interface reported |
| Signal Handling | Application-dependent analog/digital signals |
| Communication | Host-system dependent |
| Supply | Backplane supplied |
| Nominal Supply | 24 VDC reported for some ALSTOM cabinets; exact rating requires verification |
| CPU | Not reliably confirmed |
| Memory | Not reliably confirmed |
| I/O Channel Count | Not reliably confirmed |
| Output Ratings | Not reliably confirmed |
| Operating Temperature | −25°C to +70°C reported as typical for similar railway modules; not confirmed as an exact rating |
| Firmware | Vehicle/system dependent |
| Hardware Revision | TRVC070938005.A |
| Mounting | Rack/backplane |
| Condition | New Surplus, subject to inspection and functional testing |
A secondary source reports backplane supply and 24 VDC nominal for many ALSTOM control cabinets, while also describing the TRVC module as a rack-mounted PCB with signals routed through the backplane. This should be treated as system-level guidance, not a guaranteed electrical rating for every TRVC062105000 assembly.
TRVC062105000
Main Features and Advantages
Complete Part-Number Traceability
The most important procurement characteristic is the complete identification:
TRVC062105000 → TRVC070938000 → TRVC070938005.A
Using only “TRVC” is insufficient. The additional identifiers help distinguish the actual hardware revision and assembly configuration.
Backplane-Based Architecture
The module is described as a plug-in PCB using the host rack’s backplane for power and signal routing. This makes rack compatibility, connector condition, and slot assignment important parts of the replacement check.
Railway-Oriented Design
Available references specifically associate the TRVC family with railway control cabinets. This is relevant when maintaining older rolling-stock or railway-control equipment where a conventional industrial PLC card cannot simply be substituted.
Revision Matters
The suffix should be treated as a configuration-control item. Secondary documentation notes that TRVC variants can have revision-dependent software interlocks or diagnostic characteristics. For fleet maintenance, matching the exact suffix is preferable to accepting a visually similar TRVC board.
Practical Replacement Checks
Before installation, compare:
- TRVC062105000 marking
- TRVC070938000 reference
- .A revision
- PCB revision
- Rack position
- Edge connector condition
- Backplane compatibility
- Firmware/application version
- Vehicle or cabinet configuration
- I/O mapping
- Diagnostic behavior
Related ALSTOM Products
- ALSTOM NRD108033 / 8RDC44667G01 / SA44667.C — Related legacy control module. It belongs to the broader ALSTOM control hardware group but is not automatically interchangeable.
- ALSTOM NRD108034 / 8RDB44674G01 / SA44674.C — Another ALSTOM control module with a different hardware identity.
- ALSTOM NRD108031 / TRVC070999000 / BOTTOM — Related TRVC/NRD hardware identified as a BOTTOM module. Its different designation indicates a different system role.
- ALSTOM N897092520B / N897092057Y / TRENO / N897092500E — Railway-oriented ALSTOM control hardware. It is part of a different identification group and should not be substituted without system documentation.
- ALSTOM N897093511D / N897093051D / DIAGNOSTICA / N897093400H — Diagnostic hardware serving a different purpose from the TRVC control board.
- ALSTOM N895609510K / N895609010R / E32OUT / N895609100P — Digital-output hardware; its function differs from the TRVC module.
Frequently Asked Questions
What is ALSTOM used for?
It is an ALSTOM TRVC-series control module intended for integration into compatible rack-based railway or industrial control systems.
Are and TRVC070938000 the same part?
They are consistently presented together as one product identification, but I would not assume they represent completely independent interchangeable part numbers. They may identify different assembly levels, board references, or manufacturing/configuration identifiers.
For procurement, provide all three identifiers.
What does .A mean?
It is an additional board/revision identifier. The .A suffix is worth preserving because revision differences can affect hardware components, firmware, diagnostics, or system compatibility.
Is this a 24 VDC module?
A secondary source describes the TRVC assembly as receiving power through the host backplane and reports 24 VDC nominal for many ALSTOM control cabinets.
I would not specify 24 VDC as the definitive board rating without the cabinet power documentation.
Can it be hot-swapped?
Do not assume hot-swap capability.
If the module participates in control or monitoring, removing it under power can interrupt the rack or change system behavior. Use the applicable ALSTOM maintenance procedure unless energized replacement is explicitly approved.
Does it have Ethernet?
Public descriptions do not provide sufficiently reliable evidence to assign a dedicated Ethernet interface to this exact board. The communication path appears to be system/backplane dependent.
Do not purchase or configure the board based on a generic Ethernet specification from a reseller listing.
How should I test a replacement?
For a critical spare:
- Verify .
- Verify .
- Verify .
- Inspect PCB and connectors.
- Check hardware revision.
- Verify rack/backplane compatibility.
- Confirm vehicle/cabinet application.
- Compare firmware/configuration.
- Perform controlled power-up.
- Run available diagnostics and functional I/O testing.
Procurement judgment: The strongest available evidence supports identifying ALSTOM / / .A as a TRVC-series rack-mounted control module. Detailed electrical and I/O specifications are not sufficiently consistent in public sources, so voltage, channel count, processor, and communication ratings should be confirmed against the original ALSTOM system documentation before being used as purchase specifications.
