corrigendum : supply of pcm tdm integrated access device , supply, installation, testing and commissioning of pcm tdm integrated access device (make: mrotek, model- maple/4c or similar) equipped with of 4e1 ports and 3 slots & one slot populated with 2w/ 4w e&m supporting up 8 interfaces balance two slots empty unit support 124 dso slot cross connect. e&m module to support gain/loss adjustment for lvcd application. unit support both ac/dc power supply (ac 23 0 volt/ dc 24v to 48v) including 50 pin cable one number for supporting both 2w/4w e&m, ac adaptor one number. details technical specification enclosed. accepted make/brand:--mrotek make maple 4c/ 4e1/ac (v 4). [ warranty period: 30 months after the date of delivery ] ]