13
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
BTTTB
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
BTTTB
The signal line and shielded wire should be fixed firmly and in well connection. Avoid dry
joint, lap welding and oxidation.
BTTT
2.5.2 Connecting Video Output
Video output includes a
T
BNC(PAL/NTSC, 1.0VP- P
，
75Ω
）
output, a VGA output and a
HDMI output.
System supports BNC, VGA and HDMI output at the same time.
When you are using pc-type monitor to replace the monitor, please pay attention to the
following points:
To defer aging, do not allow the pc monitor to run for a long time.
Regular demagnetization will keep device maintain proper status.
Keep it away from strong electromagnetic interference devices.
Using TV as video output device is not a reliable substitution method. You also need to
reduce the working hour and control the interference from power supply and other devices.
The low quality TV may result in device damage.
2.6
Connecting Audio Input & Output, Bidirectional Audio
2.6.1 Audio Input
BNC port is adopted for audio input port.
Due to high impedance of audio input, please use active sound pick-up.
Audio transmission is similar to video transmission. Try to avoid interference, dry joint,
loose contact and it shall be away from high tension current.
2.6.2 Audio Output
The audio output signal parameter is usually over 200mv 1KΩ (BNC). It can directly
connect to low impedance earphone, active sound box or amplifier-drive audio output
device.
If the sound box and the pick-up cannot be separated spatially, it is easy to arouse
squeaking. In this case you can adopt the following measures:
Use better sound pick-up with better directing property.
Reduce the volume of the sound box.
Using more sound-absorbing materials in decoration can reduce voice echo and
improve acoustics environment.
Adjust the layout to reduce happening of the squeaking.
Содержание XVR
Страница 1: ...Standalone XVR User s Manual V1 0 0...
Страница 84: ...75 Figure 3 73 Figure 3 74...
Страница 93: ...84 restore original status Figure 3 85 Figure 3 86 3 11 1 3 1 Upgrade Important...
Страница 117: ...108 Figure 3 109 Figure 3 110...
Страница 118: ...109 Figure 3 111 Figure 3 112...
Страница 132: ...123 Figure 3 129 Click draw button to draw the zone See Figure 3 130 Figure 3 130 Name Input customized rule name...
Страница 139: ...130 Figure 3 136 Figure 3 137...
Страница 140: ...131 Figure 3 138 Figure 3 139...
Страница 143: ...134 Figure 3 142 Figure 3 143...
Страница 144: ...135 Figure 3 144 Figure 3 145...
Страница 152: ...143 Figure 3 157 Figure 3 158...
Страница 170: ...161 Figure 3 180 For digital channel the interface is shown as below See Figure 3 181 Figure 3 181 3 11 5 6 ATM POS...
Страница 184: ...175 Figure 3 198...
Страница 222: ...213 Figure 4 58 Figure 4 59...
Страница 236: ...227 Figure 4 75 Figure 4 76...
Страница 241: ...232 Figure 4 83 Figure 4 84 Please refer to the following sheet for detailed information...
Страница 244: ...235 Figure 4 86 Figure 4 87 Figure 4 88 Please refer to the following sheet for detailed information...
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