Tender invited for Development of Train Collision Avoidance System
Tender invited for Development of Train Collision Avoidance System
Tender invited for Development of Train Collision Avoidance System
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ISO 9001: 2008 Effective from 18.06.2012 RDSO/SPN/196/2012 Version 3.1.1<br />
Document Title : Specification <strong>of</strong> <strong>Train</strong> <strong>Collision</strong> <strong>Avoidance</strong> <strong>System</strong><br />
Annexure-I<br />
Signalling In<strong>for</strong>mation Packet from Station/ Interlocked LC Gate / IBS to Loco TCAS<br />
units:<br />
Field No. <strong>of</strong> bits<br />
PKT_PRIORITY 1<br />
PKT_TYPE 4<br />
PKT_LENGTH 6<br />
FRAME_NUM 15<br />
SOURCE_STN_ILC_IBS_ID 14<br />
SOURCE_STN_ILC_IBS_VERSION 8<br />
DEST_LOCO_CNT 7<br />
DEST_LOCO_ID 14<br />
CUR_SIG_ID 8<br />
CUR_SIG_ASPECT 5<br />
NEXT_SIG_ID 8<br />
MA_W_R_T_SIG 16<br />
GRAD_MA_W_R_T_SIG 4<br />
NEXT_SIG_INTLKG 1<br />
DIFF_DIST_NEXT_SIG<br />
11 bits : when<br />
NEXT_SIG_INTLKG = 0<br />
(same interlocking)<br />
16 bits : when<br />
NEXT_SIG_INTLKG = 1<br />
(different interlocking)<br />
TO_SPEED 3<br />
0 bits, field not required if<br />
TO_SPEED = 111<br />
DIFF_DIST_TO<br />
(unrestricted)<br />
11 bits, if TO_SPEED = other<br />
than 111 (Speed Restriction)<br />
PREFERRED_TX_WINDOW 6<br />
Repeat shaded info <strong>for</strong> all Locos / <strong>Train</strong>s (DEST_LOCO_CNT)<br />
CRC / Checksum 16<br />
Signal Directorate RDSO/Lucknow Page 40 <strong>of</strong> 56
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