Tag: Video Surveillance BNC
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Video surveillance cards have been in development for more than a decade. From the initial 98 systems to the current 2003 system, the earliest MJPEG to H.264 compression algorithms, the monitoring compression cards used are completely different.
Regardless of the type of monitoring card, their installation is basically the same, roughly divided into the following steps:
1. Select the corresponding motherboard and install the card in the PCI or the corresponding slot.
2. Install the monitor card driver. (Method 1: Select the driver path according to the system prompt, Method 2: Use the monitoring software to bring the driver installation program.)
3. Install monitoring software. (Method 1: Copy the monitoring software directly to the local hard disk, Method 2: Use the installer to install.)
4. Run the software. (If you are installing the software directly to the local hard disk, you need to go to the software home directory to open the monitoring main program, use the monitoring software installed by the installer, usually there are shortcuts on the desktop, start menu.)
5. Set up surveillance video. (It is usually necessary to set the recording schedule, image compression resolution, image compression detection, fixed recording or dynamic recording mode selection, etc. For details, please refer to the respective monitoring software manuals.)
6, pick up the video cable. (The monitoring card is divided into two types, namely the scorpion line interface and the BNC interface on the card.)
7, image adjustment. (According to the actual mood of the video image, adjust the brightness, contrast, color saturation, etc. of each image.)
8. You're done, celebrate the celebration.
An ADSL filter separates the analogue voice-frequency signals from the ADSL (broadband) data signals(Broadband being defined as data transfer greater than 128KBPS.)
If ADSL filter/splitters are not used, the ADSL data signals are heard as "noise" on any equipment connected to the "normal" telephone-line. Apart from being annoying during a telephone conversation, there is the possibility that the additional ADSL signals may cause problems with alarm-units (etc) that may be connected across the line.
This ADSL-interference is illustrated in the diagram below that shows how the unfiltered ADSL data signals appear across the "standard" telephone equipment.
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