Microprocessor automatic block signalling MAB-U
MAB-U is a system of train separation and real-time train traffic safety.
Performs remote control of objects on the open track (traffic signals, railway level-crossing, track circuits, coding of track circuits, etc.) and interconnection between stations bordering the current open track.
Implemented on the basis of track circuits or axle counting system.
Main functions

Control of the rail integrity and vacancy of block sections of an open track.

Control of the sequence of occupation and vacancy
of block sections with automatic block signalling in case of violations.

Control of intermediate signal aspects.

Control of level crossing and tunnel signalling.

Coding of track circuits
of block sections by ALS signals.

Implementation of three-aspect or four-aspect signalling algorithm
(depending on customer's requirements).

Real-time display of information about train position and status
of SCB devices at an open track on station operator's and signal technician’s workstations.
