Description
Specifications:
1) Hardware compression at MPEG-4 layer
2) Image frame rate: 25 or 30 frames /channel/s (adjustable)
3) Hard disk occupation: 80M/h adjustable compression rate
4) Number of video recording channels: 2/4/6/8 channels optional
5) Alarm tone pre-recording: 10s
6) System: PAL/NTSC
7) Audio compression standard: G.723/ADPCM
8) Data interface: RS-232/422/485, E1, ADSL, ISDN
9) Supported protocols: TCP/IP, UDP, others
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