41
3.6 Connecting Video Input and Output Devices
3.6.1 Connecting Video Input
The video input interface is BNC. The input video format includes: PAL/NTSC BNC
（
1.0V
P- P
，
75
Ω.
）
See Figure 3-1.
The video signal should comply with your national standards.
The input video signal shall have high SNR, low distortion; low interference, natural color and
suitable lightness.
Guarantee the stability and reliability of the camera signal:
The camera shall be installed in a cool, dry place away from direct sunlight, inflammable,
explosive substances and etc.
The camera and the DVR should have the same grounding to ensure the normal operation of the
camera.
Guarantee stability and reliability of the transmission line
Please use high quality, sound shielded BNC. Please select suitable BNC model according to the
transmission distance.
If the distance is too long, you should use twisted pair cable, and you can add video
compensation devices or use optical fiber to ensure video quality.
You should keep the video signal away from the strong electromagnetic interference, especially
the high tension current.
Keep connection lugs in well contact
The signal line and shielded wire should be fixed firmly and in well connection. Avoid dry joint,
lap welding and oxidation.
1U Series
1.5U Series
Summary of Contents for DVR-470
Page 1: ...1 DVR 470 870 1670 PK User s Manual...
Page 8: ...8 APPENDIX G EARTHING 175 APPENDIX H TOXIC OR HAZARDOUS MATERIALS OR ELEMENTS 180...
Page 32: ...32 2 3 3 2U series Please refer to Figure 2 10 for connection sample Figure 2 9...
Page 52: ...52 1U series 1 5U Series...
Page 53: ...53 2U Series Figure 3 11...
Page 68: ...68 Figure 4 21 Figure 4 22 Figure 4 23 4 5 3 Video Loss Figure 4 24...
Page 71: ...71 Figure 4 27 Figure 4 28 Figure 4 29 Figure 4 30...
Page 115: ...115 Figure 6 11...
Page 171: ...171 Samsung HA101UJ CE 1T SATA...
