supply of 1) charging unit to sanrok part no. 2ed-254 2) display card for vesda [item code : 2f00 3) conversion of fsds system to comply to m1) charging unit to sanrok part no. 2ed-254 2) display card for vesda [item code : 2f00 3) conversion of fsds system to comply to m,charging unit to sanrok part no. 2ed-254-3523 for automatic smoke/fire detection with a larm system. make- sanrok [ warranty period: 30 months after the date of delivery ] ] , conversion of fsds system to comply to modified clause 1.7 (a) of rdso specifications rds o/2008/cg-04 rev-6 amd - 1 includes providing of (1) limiter module and (2) 2a 2pole dc mcb (c-curve). make: sanrok enterprises. [ warranty period: 30 months after the date of delivery ] ] , display card for vesda [item code : 2f00000000845] sanrok part no. 2ed-255-9001a for s anrok make automatic smoke/fire detection with alarm system in ir ac coaches to rdso specification no . rdso/2008/cg-04 rev.05 or latest. make-sanrok [ warranty period: 30 months after the date of delive ry ] ]