design, supply, installation, testing, commissioning, operationalizing and maintainence of ip based cctv surveillance security cameras at 520 nos. of police stations in kerala by providing centralized monitoring at all district police control rooms design, supply, installation, testing, commissioning, operationalizing and maintainence of ip based cctv surveillance security cameras at 520 nos. of police stations in kerala by providing centralized monitoring at all district police c rooms , design, supply, installation, testing, commissioning, operationalizing andmaintainenceof ip based cctv surveillance securitycameras at 520 nos. of police stations in kerala ( quote rate for providing the system for one police station ) , fixed lens bullet camera with two-way built-in voice / audio feature ( 11 cameras per each ps ) , motorized varifocal bullet camera with two-way built-in voice / audio feature , 64-ch nvr with 16 sata port ( back up for 18 months ) , 8 tb hdd ( 16 hdd per nvr ) , 24 port poe switch ( 24port giga byte poe switchwith 190w ) , 43 incheled tv , 2 kva ups with minimum 8 hours battery back-up ( 2 kva ups with two nos. of 150 ah batteries ( or better ) . forat least8 hrs battery back-up ) , 15 u rack ( 15 u rack with fan for mounting nvr & poe switch and all accessories ) , cabling ( cabling by cat-6 utp cable in isi marked pvc conduit ) , miscellaneous ( installation charges with all accessories for completing the project ) , monitoring equipments for district head quarters ( quote rate for one district headquarters ) , i7 computer , 43 inche led tv , central monitoring software ( cms ) / vms ( video management software ) , 2 kva ups with 2 nos. of 150 ah batteries ( or better ) . for at least 8 hrs back-up