supply of electrical signal exchange system for three phase locomotive each systemelectrical signal exchange system for three phase locomotive each system,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) harnesse d cable for connection] to clw specn. no. clw/ms/03/670 alt-2 or latest. note: supply by sources as per clw item id: 21 00408 in ireps vendor directory. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]