ESSO-M is a system of new generation. It conforms to the world trends of railway signalling development.

Axle counting system ESSO-M is intended for vacancy/occupancy detection of track sections and is alternative to track circuits. It is used on station sections and railway hauls, as well as in metropolitan and speed tram lines.

ESSO-M is integrated into any existing signalling systems both in new construction as well as in the modernization and repair.

ESSO-M enables control sections of any length and configuration. In comparison with ESSO system, it is possible to receive expanded process and diagnostic information, displayed on LCD panel with intuitive interface, such as axles, passed over every counting post with respect to direction, pre-fault state of communication channels with the counting posts.

  • Interfacing with the upper level systems is implemented over digital channels; with microprocessor systems – via digital serial interface, with relay systems – via integrated safe interface type “dry contact”.
  • ESSO-M comprises less equipment in comparison with ESSO – one evaluation block controls 15 sections, wayside equipment is reduced by means of using wheel sensor DKU “Koldun”.
  • Standard structure enables integration of ESSO-M modules into the standard cabinets of the upper-level system.
  • Specific UPS is not required.

 Download ESSO-M, ESSO-M-2 brochure

ESSO-M equipment
Wayside devices Tower devices
  • Wheel sensor DKU “Koldun” with sensor claws.
  • ESSO-M evaluation unit, consisting of case KBR, counting board PLR and interface board PLI;
  • axle counter adapter UPSP and interfacing unit USKS;
  • ESSO-M visual panel PT;
  • reset panel;
  • overvoltage protection device.


Tower equipment
Wheel sensor
ESSO-M visual panel PT
ESSO-M evaluation units
Axle counter adapter UPSP
Technical data
  • supply voltage: alternating current – 220 V, direct current – 12, 24, 48 V;
  • max power, consumed by 1 CP: 3.5 W;
  • train speed – 0...360 km/h;
  • transmitting distance between wayside and tower equipment: over signalling cable- up to 5 km; via communication cables - up to 35 km; seal-up lines, radio-relay lines and optical fiber lines - unlimited;
  • operating temperature range: outdoor equipment -60..+70°С;  indoor equipment: -40..+70 °C;
  • diagnostic interfaces: RS485 (Modbus), Ethernet (SNMP).
  • reduction of equipment cost for the track sections in comparison with traditional track circuits (excluding usage of expensive and copper-bearing elements of track circuits);
  • reduction of operational expenses, including due to fault external relays required periodic maintenance in a part of control instrumentation;
  • system operation at any up to zero ballast resistance;
  • operational availability increase due to diagnostics of pre-fault states.