installation and commission of cctv in pmpml buses for woman s security purpose dpdc , electrical items : , a ) mobile dvr with sd card slot ( single or double ) supporting 256 gb memory card and up to 2 / 4 cameras input . b ) mobile dvr should be shockproof and should have ce & fcc certified for maintaining international standards . c ) mobile dvr should have an option to insert 3g / 4g / volte sim card for internet connectivity so that it can be live monitored from a central place along with the live view of cameras and live gps location of the bus / vehicle in which it is installed . make: cp-plus , hikvision , avitron , hisilicon , hifocus , mobile dvr camera all cameras should be 720p / 1080p with high definition ( hd ) video . make: cp-plus , hikvision , sony , avitron , hifocus , aviation to rj45 network cable , required 1 for each mdvr make:aviation , aviation to bnc cable , required as per camera , all connections must be aviation connectors to avoid interference of external signals and maintaining clarity of the recorded video in mobile dvr . make: aviation , all device installation setting , easy backup and playback option should be provided by the supplier with software on windows-based computer & android / ios applications . , training of software and hardware for the operation of mobile dvr for playback in case of any evidence / mishap / other event required to be given to internal staff of pmpml so that the response time can be minimized in case required . , monitor to preview should be 7 to 9 portable tft display .