bids are invited for basic system incl hot standby 200 lines exchanges upgradeable to 600 lines switchover from working to standby to be seamless. - basic system incl hot standby 200 lines exchanges upgradeable to 600 lines switchover from working to standby to be seamless. , (a) main processor card for each exch (hot stand by) - (a) main processor card for each exch (hot stand by) , (b) storage memory devices/cards (hdd and mod). (for each exch) - (b) storage memory devices/cards (hdd and mod). (for each exch) , (c)control cards. as required for configuration specified - (c)control cards. as required for configuration specified , (i) interface card (for ltus) - (i) interface card (for ltus) , (ii)power supply cards - (ii)power supply cards , (iii) signaling card - (iii) signaling card , (iv) tone card - (iv) tone card , (v)conference card - (v)conference card , (vi)alarm system - (vi)alarm system , (vii) other control cards reqd for (pri/e1 / trunk cct) - (vii) other control cards reqd for (pri/e1 / trunk cct) , extensions. - extensions. , (a) analog subscriber card/ ccts - (a) analog subscriber card/ ccts , (i) normal. (long distance cli enabled subs cards) to support min 200 subs in each exch - (i) normal. (long distance cli enabled subs cards) to support min 200 subs in each exch , (ii)any other card reqd to provide interface of the 200 line exch for an absolutely transparent functioning with exiting siemens hipath exch.in each exch - (ii)any other card reqd to provide interface of the 200 line exch for an absolutely transparent functioning with exiting siemens hipath exch.in each exch , (iii)facility for upgradeable upto 600 lines.in each exch - (iii)facility for upgradeable upto 600 lines.in each exch , (b)digital sub card (8 ports) for each exch - (b)digital sub card (8 ports) for each exch , trunks circuit. - trunks circuit. , (a)4w/6w e&m(programmable) port (in each exch) - (a)4w/6w e&m(programmable) port (in each exch) , (b)both way ld port (in each exch)