The audio and video matrix refers to an electronic device that outputs m video signals to an n-channel monitoring device through an array switching method. In general, the input of the matrix is ​​greater than the output, ie, m>n. Some video matrices also have audio switching capabilities that enable the simultaneous switching of video and audio signals. This matrix is ​​also called the audio-visual audio matrix.
In order to ensure the reliable use of equipment and the safety of personnel, when installing, using and maintaining the audio and video matrix, Guangzhou Dongju reminds you to observe the following:
1. System grounding must have perfect grounding. Otherwise, it will not only cause signal interference, instability, or mechanical damage, but also cause personal accidents due to leakage. The final grounding point of the AV switching matrix should be connected to true ground and its ground resistance should be less than one.
2. It is forbidden to change the original design. It is forbidden to modify or add any components to the mechanical and electrical design of this product. Otherwise, the manufacturer is not responsible for the hazardous results caused thereby.
3. Do not use two-pin plugs. Ensure that the input power to the device is 220V 50Hz AC.
4. There are AC 220V high-voltage parts inside the machine. Do not open the case without authorization so as to avoid the risk of electric shock.
5. Do not leave the system equipment in a place that is too cold or too hot. The power supply of the equipment will heat up during operation. Therefore, it is necessary to keep the working environment well ventilated so as not to damage the machine due to excessive temperatures.
7. When it is rainy or wet or when it is not used for a long time, turn off the power switch of the equipment.
8. Be sure to unplug the AC power cord from the AC outlet before the following operations: A. Remove or reinstall any part of the equipment; B. Disconnect or reconnect any electrical plugs or other connections to the device.
9. Non-professionals, without permission, please do not attempt to open the equipment chassis and do not repair it by yourself in order to avoid accidents or increase the damage of the equipment. 10. Do not spill any chemicals or liquids on or near the equipment.
The current audio-video matrix has two major categories: analog matrix and digital matrix. Audio and video matrix is ​​generally used for all kinds of monitoring occasions. Simply put, there are a lot of equipments that are generally input in conference rooms: cameras, DVDs, VCRs, physical booths, desktop computers, many laptop signals, etc., and there are few display terminals: projectors, plasmas, and large screens. . The role of the audio and video matrix comes out. It can send the signals of any one of the devices that provide the signal source to any one of the display terminals. The audio and video can be synchronized or out of sync, and the desired, convenient and cost saving can be achieved. . Common types are based on the type of interface (VGA, AV, RGB), and of course there is a mixed matrix, which is not the different interface types in the device, but also divided according to the number of interfaces, such as 8 series with 8 into 2 out, 8 into 4 out, 8 in and 8 out, etc. According to the grade, there is a telecommunication broadcast level: there is no flicker and snow when switching, it is very smooth, you can see the CCTV program will know, followed by a professional matrix, a little black screen when switching, but there is no flash, then It is for civilian use. Most conference rooms use this type of system. There are flashing snowflakes and jitters at the moment of switching, but the screen is stable after switching.
In order to ensure the reliable use of equipment and the safety of personnel, when installing, using and maintaining the audio and video matrix, Guangzhou Dongju reminds you to observe the following:
1. System grounding must have perfect grounding. Otherwise, it will not only cause signal interference, instability, or mechanical damage, but also cause personal accidents due to leakage. The final grounding point of the AV switching matrix should be connected to true ground and its ground resistance should be less than one.
2. It is forbidden to change the original design. It is forbidden to modify or add any components to the mechanical and electrical design of this product. Otherwise, the manufacturer is not responsible for the hazardous results caused thereby.
3. Do not use two-pin plugs. Ensure that the input power to the device is 220V 50Hz AC.
4. There are AC 220V high-voltage parts inside the machine. Do not open the case without authorization so as to avoid the risk of electric shock.
5. Do not leave the system equipment in a place that is too cold or too hot. The power supply of the equipment will heat up during operation. Therefore, it is necessary to keep the working environment well ventilated so as not to damage the machine due to excessive temperatures.
7. When it is rainy or wet or when it is not used for a long time, turn off the power switch of the equipment.
8. Be sure to unplug the AC power cord from the AC outlet before the following operations: A. Remove or reinstall any part of the equipment; B. Disconnect or reconnect any electrical plugs or other connections to the device.
9. Non-professionals, without permission, please do not attempt to open the equipment chassis and do not repair it by yourself in order to avoid accidents or increase the damage of the equipment. 10. Do not spill any chemicals or liquids on or near the equipment.
The current audio-video matrix has two major categories: analog matrix and digital matrix. Audio and video matrix is ​​generally used for all kinds of monitoring occasions. Simply put, there are a lot of equipments that are generally input in conference rooms: cameras, DVDs, VCRs, physical booths, desktop computers, many laptop signals, etc., and there are few display terminals: projectors, plasmas, and large screens. . The role of the audio and video matrix comes out. It can send the signals of any one of the devices that provide the signal source to any one of the display terminals. The audio and video can be synchronized or out of sync, and the desired, convenient and cost saving can be achieved. . Common types are based on the type of interface (VGA, AV, RGB), and of course there is a mixed matrix, which is not the different interface types in the device, but also divided according to the number of interfaces, such as 8 series with 8 into 2 out, 8 into 4 out, 8 in and 8 out, etc. According to the grade, there is a telecommunication broadcast level: there is no flicker and snow when switching, it is very smooth, you can see the CCTV program will know, followed by a professional matrix, a little black screen when switching, but there is no flash, then It is for civilian use. Most conference rooms use this type of system. There are flashing snowflakes and jitters at the moment of switching, but the screen is stable after switching.
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