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资源说明：NVP6124B include 4-Channels AHD2.0 RX and 9-Channels Audio Codec. It is sure that
compatible with AHD1.0. The 4-Channels AHD2.0 RX delivers high quality images. It accepts
separate 4 CVBS/COMET/AHD1.0/AHD2.0 inputs from Camera and the other video signal sources.
It digitizes and decodes NTSC/PAL/COMET/AHD1.0/AHD2.0 video signal into digital video
components which represents 8-bit BT.656/1120(like) 4:2:2 byte interleave format with
27/36/37.125/54/72/74.25/108/144/148.5/297MHz multiplexed.
The NVP6124B includes Clock PLL, so 27/36/37.125/54/72/74.25/108/144/148.5/297MHz byte-
interleave function available. Especially, It is able to use same transmission cable with conventional
one for COMET(SD level), AHD1.0 (HD level) and AHD 2.0 (Full HD level), and they provide the
superior image quality by minimizing the interference when separating Y and C.
The 9-Channels Audio Codec is 8-Channels Voice/1-Channel Mic PCM Codec which handles
voice band signals(300Hz~3400Hz) with 8bit/16bit linear PCM, 8bit G.711(u-law, a-law) PCM.
Built-in audio controller can generate digital outputs for recording/mixing and accepts digital input for
playback.
The 4-Channels Coaxial Communication Protocol communicates between controller(DVR) and
camera on the video signal through coaxial cable. It was includes Tx for transfer especially signals
thought coaxial cable and Rx for receives especially signals to keep informed a user by control
registers.
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