Knorr TRM UNIT B-TRAIN CV3353
Knorr‑Bremse TRM Unit – CV3353
What it is:
The TRM (Trailer Roadtrain Module) is an electronic CAN‑bus amplifier / splitter designed to extend and distribute control signals for trailer braking systems in road‑train configurations. It is used to manage connections on the CAN‑bus under ISO‑11992 for multiple trailers or modules and to ensure reliable brake demand and system integrity over longer electrical runs.
Key Features:
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Distributes incoming power and CAN‑signal (front ISO 7638 / ISO 11992) to Local and Rear ports so that multiple TEBS G2 braking modules can be connected.
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Includes an “In‑Out” port which allows connection of external pressure sensors; it converts pressure (in a pneumatic line) into corresponding CAN signals for the EBS/TEBS system.
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Operating temperature range: ‑40 °C to +80 °C.
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Voltage range: approximately 9‑32 V DC.
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Compact, rugged housing suitable for trailer environments.
Applications:
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Used on road‑trains and trailers needing extended CAN‑bus lengths or multiple TEBS G2 modules.
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Ensures consistent brake control signal even when trailers are long or have auxiliary modules installed.
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Helps maintain diagnostics, safety, and system feedback across the braking network.
