supply of electrical signal exchange system for three phase locomotiveelectrical signal exchange system for three phase locomotive,electrical signal exchange system for three phase locomotive. each system consists of (i) two sets of led lights (ii) operating panel/switches for loco pilot and assistant loco pilot separately and (iii) harnessed cable for connection to clw specn. no. clw/ms/03/0670 alt-2 or latest and leds for signal exchange light as per rdso spec. no. elrs/spec/pr/0022 rev.-1 or latest. [ warranty peri od: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] => limited