supply of programmable primary digital drop-insert multiplexer with conference f

supply of programmable primary digital drop-insert multiplexer with conference facility as per technical specifications irs-tc 68-2012 with latest amendments wired complete with power supply, control and basic-common accessories cards, remote control supervision facility and all other accessories, installation material, connecting cables [minimum 5 m length] with suitable connectors for taking out the mux s out put for all the channels, technical manuals etc, the mux shall be equipped with 3 nos 4w-2w e andm cards of four circuits each [12 circuits]. 1 no 2w exchange interface cards of four circuits [4 circuits], 2 nos hot line-subcriber loop interface cards of four circuits each [8 circuits] and 1 no data interface card 64 kphs with g.703 interface [the pd mux should be rdso approved].