When LP approaches an IB signal at ON:-
Ø He shall stop the train at the foot of the signal and contact SM in rear
through the IB phone/SPT.
Ø SM after ensuring that previous
train has cleared the block section and after obtaining line clear for the
waiting train, shall issue a message supported by PN authorizing the LP to pass
the IBS at ON. The PN shall be the same PN obtained from the station ahead for
‘line clear’.
Ø The LP shall pass the signal at ON and proceed at booked speed.
Ø If the telephone is out of order and the Loco pilot is not able to
contact the SM, Loco pilot shall after waiting for 05 mins at the signal, pass
it at ON and proceed cautiously at a speed not exceeding 15 Kmph when view
ahead is clear and 08 Kmph when the view ahead is not clear up to the foot of
the FSS of the station ahead, even if it is OFF and be prepared to stop short
of any obstruction.
Ø The Loco pilot must report the failure to the SM at the block station
ahead.
Ø SM in rear after finding that the IBS has failed shall treat entire
section as one block section, and every train shall be issued PLCT & separate
T/369 ( 3b ) for passing IBS at ON
.
Ø Loco pilot shall pass the IBS at booked speed.