American Bus Video SD4HC, Руководство пользователя

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1 Product Overview
The four-channel embedded digital SD card video recorder is designed for car safety. It uses embedded
processor and embedded operating system, combined with video / audio compression / decompression, GPS,
car recorder, and the capacity SD card storage technology to confirm the high intelligence and high stability.
Widely used for bus, ship, train, and other areas of security.
2 Basic functions
2.1 Audio/Video Compression Format
The video adopts latest IS014496-10 (H.264) video compression technology, high compression rate to
ensure a better image quality under less storage; the audio adopts G711A compression method, output a
better voice with low distortion.
2.2 Audio/video recording mode
" Compression format
The audio video data are stored through special files, encrypted to prevent data loss under
frequent power failure circumstances.
"
Compression stream
Image quality with 8 levels and adjustable (192kbps--2.0Mbps/channel) to meet different
requirements.
"
Storage
Support 2x128GB SD card, auto overwritten and cycle storage.
2.3 Image quality when monitoring, recording, playback
" Resolution
960H: Monitoring: 960*576/CH; Recording: 960*576/CH; Playback: 960*576/CH
720P: Monitoring: 1280*720/CH; Recording: 1280*720/CH; Playback: 1280*720/CH
" Frequencies