supply of drivers display unit (ddu) as per clws specification no. clw/es/3/0487/c or latest for wag9 locosdrivers display unit (ddu) as per clws specification no. clw/es/3/0487/c or latest for wag9 locos,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 like subsystem status, pantograph, vcb and catenary voltage. so that, we can check the graphical display parameters of slave locos in leading loco display. [note: each set c onsists of 02 nos. scope of supply will be in set]. [ warranty period: 30 months after the date of deli very ] ]