ENG

Microprocessor track circuits MRC-U

MRC-U are intended for:

  • Occupancy control of track sections and integrity of rail lines;
  • ALSN code signals generating.

MRC-U can be used on main-line and industrial railways, as well as in subways

Main functions

Power supply of track circuits

(audio frequency signals), measuring levels of currents and voltages

Generation of ALSN codes

Diagnostics and transmission of information

about track circuits equipment condition to the higher level

Protection against electromagnetic interferences

(caused by atmospheric phenomena, traction currents of 50 Hz frequency and others)

Self-diagnostics,

switch to protective state in case a failure is detected

Implementation of MRС-U will allow to:

Exclude all track circuit coding relays and ALSN

or parallel discrete interface equipment.

Minimize maintenance

due to stability of MRC-U parameters under changing external conditions.

Provide easy interfacing

via digital or parallel discrete interfaces with microprocessors, relay-based interlocking and automatic block signalling systems.

Perform continuous monitoring of cable parameters,

including core-to-core and ground faults.

Provide continuous monitoring of track circuit parameters,

including insulated joint short circuit, rail integrity and residual voltage at the receiver.

Minimize the impact of the “human factor”

by controlling the adjustment processes.

Key features

MRC-U and ALSN signal parameters do not depend on changes in climatic conditions.

Adjustment is performed once during commissioning.

Extended control, measurement, diagnostics

of electrical and time parameters.

Synchronization of ALSN signal generation

within one system (all the routs on a station).

Accuracy and stability of the signals generated.

Generator + audio frequency TC receiver + ALSN generator in one module.

“Hot” redundancy

and module replacement without reconfiguration.

Resistant to traction current harmonics

and other electromagnetic interference.

Quick support and service

provided by the manufacturer for the entire life cycle.

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