supply of drivers display unit (ddu).drivers display unit (ddu).,drivers display unit (ddu) as per clws specification no. clw/es/3/0487/c or latest for wag9 locos. (during consist working (three locos in train bus operation), in leading loco ddu should s how trailing locos information as per annexure enclosed. for check the graphical display parameters o f slave locos in leading loco display). [note: each set consists of 02 nos. scope of supply will be in set]. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]