supply of supply of standard 19 rack mountable -48v dc working add-drop stm-4 sdh equipment , supply of standard 19 rack mountable -48v dc working add-drop stm-4 sdh equipment co nforming to tec gr no: gr/sdh-010/03. jan 2011 (with latest amendment) complete with, redundant pow er supply, 01 nos cross connect card equipped with 02 stm-4(l4.2) and 02 nos. stm-1(l1.1) aggregate opti cal interface, 63e1s card with krone frame and modules and 08 port ethernet card. fast ethernet 10/100 m bps on sdh (eos) 10/100 base -t interface module/card, provide redundancy of power supply unit, installat on material and other accessories. complete engineering order wire (eow) arrangement. [ warranty per iod: 30 months after the date of delivery ] ]