supply of multiplexermultiplexer, supply of 2mb programmable primary digital drop / insert multiplexer with conference facility as per rdso specification no.68 / 2012 with amendment no.1 or latest wired for 30 circuits complete with power supply, control and basic / common cards ( i.e psu-02, trib-01 & nim-01 ) remote control supervision facility and all other accessories.the multiplexer shall equipped with interface cards: [ a ] 2w / 4w e&m ( 4ckts per card ) -4nos. [ b ] fxo / exchange loop ( 4ckts per card ) -2nos. [ c ] fxs / subscriber ( 4ckts per card ) -02nos.make:-webfil or similar compatible with existing webfil mux of this division.inspection by rdso.