(14-04-2010, 02:20 PM)sugavanam nagarajan Wrote: Dear Sir,
1.Please explain the working principle of train describer:
How unique train number is identified by TD?
2.Is it SSI only having SPAD Alarm or RRI also?
Explain how SPAD Alarm system is working?
-Sugavanam
Since In have not been able to find much accessible information re Train Descibers and the like, I decided to raid my store of photographs to supplement the wordy descriptions by Peter and myself. They say pictures worth 1000 words (and they ought to be given the file size), so hopefully some will find these helpful
PJW