Vacron VDH-DRN374 Series, Руководство по оборудованию

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VDH-DRN374 Series Hardware Manual
5
5 HD Digital Output
6 4 channel Audio Input
7 LAN port
8 USB Mouse Port
9 RS-485 Port
10 DC12V Power Input

RS-485 port/DC12 Power Input
3. Installation Illustration

Video input
Input interface is BNC type; input signal is PAL/NTSC BNC（1.0VP-P，75
Ω
）
The Video signal should comply with national standards, a higher signal to
noise ratio, low distortion, low-interference; clear images, no deformation,
nature color and appropriate brightness.

Make sure stable and reliable signals from cameras
Cameras should be installed in a suitable position to avoid backlighting,
low-light environment, or adopts the better BLC, low-light cameras.
Cameras and digital video recorders should be common ground, stably and
reliably, in order to ensure the normal operation of the cameras.

Make sure the transmission cables are stable and reliable