Page 327 - IRSEM_Main Book

(f) OBC processes this information and generates the required commands
(such as Movement Authority or Braking, Warning). These actions take place
depending up on the current signal aspect and actual speed of the train.

(i) Adopted to Act on data received from Balise in TPWS territory.

(ii) Calculation of speed profile for track section ahead based on data
received.

(iii) Audio visual warnings about possible intervention from TPWS before
SB & EB.

(iv) Continuous monitoring of current speed with maximum permitted
speed of train & bringing the brake intervention (SB) when it exceeds
5 KMPH.

(v) Train Trip by emergency brake application if speed exceeds 10 KMPH.

(vi) Emergency brake application if train passes the stop signal at ON.

(vii) Manual release of Emergency brake by Isolating the system.

(viii) Passing manual stop signal at ON by using a bye-pass button.

(ix) Speed monitoring while passing on Automatic signal at ON.
(x) Provision of Roll back protection.

(xi) Provision for Isolation of TPWS system in case of malfunctioning.

Simplified Driver Machine Interface of TPWS

Chapter 13: ATP, ETCS, IRATP (TCAS) & TMS Page 281 of 535