Customer Support +91 94498 70927 | Request Call Back | Enquiry | Support Request

Products › Multi Section Digital Axle Counter "MSDAC-G39"

Versatile Axle Counting System Configurable up to 40 DP and 40 Sections

  • MSDAC-G39 is a fail safe, reliable and user friendly 2oo3 architecture based Axle Counter
  • Complies with RDSO/SPN/176/2005 Ver 2.0
  • Designed to meet Cenelec SIL-4 standard EN50126, 50128, 50129, 50159 Part A and B


  • Microcontroller based fail-safe embedded system
  • Upgradable for higher configuration system
  • Central Evaluator : 2oo3 CPU, 2oo3 Section output and 1oo2 DC-DC Converter power supply
  • Complete SMT technology, miniaturized 3U card frame
  • Fixed pair communication, CRC check with AES128 Cryptography algorithm. Unique addressing of units ensures fail-safety
  • User friendly GUI aids to configure DP’s and Sections
  • Units can be housed in location boxes / Mushroom boxes near the tracks
  • Supports VDU display for monitoring

MSDAC - G39 Card Modules

MCPU : Central Processing Unit
MDP   : DP card supports 2 DP
MSC   : Section card supports 1 section
MCE   : Communication
MDC   : DC-DC Converter

FDP - G39 Field DP system

FCPU : Central Processing Unit
FCOM : Communication
FPD1/FPD2 : Wheel Detector
FRD : Relay Drive Card
FDC : DC-DC Converter wide range

Axle Detectors

  • Web mounted on track, works with 90-R, 52Kg, 60Kg rails
  • Phase detection principle employed
  • Signals fed at 21Khz and 25Khz to Tx coils at 60V RMS
  • Supports Axles above 330mm and 550mm (buyer selectable)
  • Supports up to 40 Detection points and 40 sections
  • Works with 24 VDC +30% - 50% power
  • Field Electronics FDP-G39 works with 60 to 120 VDC
  • Power and data can be combined for short distances up to 3.2 Kms
  • Fault tolerant data communication of V.23 as per CCITT standard
  • Supports communication on PIJF cable, half quad copper, OFC on voice and data channel and RF communication with Cenelec 50159 Part B
  • Support 16 + 16 shared track sections, (12 RI section and 4 SSI section)
  • Supports 16 numbers of Vital and Non Vital inputs and outputs for multiplexing
  • Supports 16 SSI interface sections through fail safety telegrams and data logger
  • Supports hot swapping of card modules in Central Evaluator
  • Event logging up to 40000 events
  • Capable of extending Central Evaluator in daisy chain form
  • Stable operation at -10 to 70 Degrees Celsius
  • Field DP system can be configured as standalone SSDAC system (2DP-1S, 3DP-1S, 3DP-2D and 3DP-3S) without Central Evaluator
  • The Field Detection system FDP supports various mode of operation
  • 1C1E : Single communication with single Evaluator
  • 2C1E : Dual redundant communication with single Evaluator
  • 2C2E : Dual independent communication with two Evaluators
  • Conditional Direct : Minimum one out count
  • Un Conditional Direct : No out count required
  • Preparatory : With/without piloting
  • Direct Conditional / Un Conditional : With/without Line Verification
  • Reset can be applied either Manual or through software from VDU panel

GUI Configuration of MSDAC-G39

VDU Panel of MSDAC-G39