14-04-2010, 02:20 PM
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
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

