Insert the socket separately or connect the power cord with a plug before inserting the socket. If it is a classroom, conference room and other places that need projection, you can put the computer mainframe and the stereo together, and then you need to fix all kinds of wires along the corner of the floor or ceiling, with a plastic cover outside.
Then, the other output port of the distributor is connected with the input port of the projector using a data cable. Pay attention to the plug type of data cable, including the pin (male) and hole (female) inside, and pay attention to the length of data cable. Projectors, stereos and computers need independent power supplies.
Extended data:
The central control system is generally used in multimedia conference rooms, audio-visual classrooms, monitoring and command centers, news release rooms and environmental control. Taking the multimedia conference room as an example, the central controller is the control center of all audio-visual teaching equipment. All audio-visual teaching equipment in the classroom, such as video recorder, DVD player, projector, electric screen, stereo, etc.
There are also indoor lights and curtains that can be connected to and controlled by the central controller. Users only need to sit in front of the touch screen, and they can intuitively operate the whole system through the lighting control technology system, including system switching, equipment switching, lighting brightness level, signal switching, signal source playing and stopping, various combination modes entering and switching, and volume adjustment.
Baidu encyclopedia-multimedia classroom