Page 323 - IRSEM_Main Book

13.1.10 Automatic Self-Test at Boot up:

(a) The on-board equipment shall perform an automatic self-test when the
equipment is switched ON.

(b) This self-test shall not require any action on the part of the Loco Pilot/operator.

(c) This self-test shall test proper working of Brake Interfaces on boot-up.

(d) The result of self-tests shall be indicated on DMI.

13.1.11 Isolation of On-board Equipment:

(a) On-board system shall have provision for isolation to cater for failure situations
which shall result in disconnection of the system from the locomotive braking
system. This shall be indicated to the Loco Pilot by means of a visual
indication which shall be available even if DMI has failed.

(b) To avoid accidental/unwarranted use, the isolation arrangement of the
equipment must be protected and sealed.

(c) Isolation of system must be recorded by the system as well as recorded in
a non-resettable type 6-digit counter.

13.1.12 Data Logging & Diagnostics:

On board as well as Track side system shall be provided with Data logging for
diagnostic functions.

Section 2: European Train Control Systems (ETCS) & Train
Protection and Warning Systems (TPWS)

13.2.1 Levels of ETCS: ETCS has Four Levels:

(a) Level 0: A level of ATP defined to cover instances when the ATP on-board
equipment is operating in an area where the trackside is not fitted with
operational ATP equipment.

(b) Level 1: A level of ATP overlaid onto conventional track side signalling that
uses balises/loop/Radio Infill to pass movement authorities to the train
whilst relying on conventional means to determine train position and
integrity.

(c) Level 2: A level of ATP that uses radio to pass movement authorities to the
train whilst relying on trackside conventional means to determine train
position and integrity.

(d) Level 3: A level of ATP that uses radio to pass movement authorities to the
train. Level 3 uses train reported position and integrity to determine if it is
safe to issue the movement authority.

Chapter 13: ATP, ETCS, IRATP (TCAS) & TMS Page 277 of 535