An overview of SunRing classroom listening and broadcasting system
Sanling (SunRing) of the classroom listening broadcasting system based on four core bus transmission, specifically for school classroom listening test, hearing test and so on, each classroom can be composed of an offline listening broadcasting system, can also form a network classroom listening broadcasting system and campus broadcasting system.
At present most of the school listening test, is based on the campus FM radio, this way more disadvantages, such as: easy to interference, poor quality, low cost of cheating in examinations, etc.. Sanling electron for the product use place, pay attention to user experience, get rid of a more cumbersome set and flashy function, trying to create "practical, efficient and stable" classroom listening broadcasting system. This system adopts Sanling electron independent intellectual property rights of digital audio technology, extension of the desk by professional headphone amplifier scheme and ensure the sound clear thick.
System characteristics:
The desk in each row of seats is connected by a four core bus;
Each classroom is equipped with an audio terminal box, which can adjust the volume individually;
Each position of the desk extension can be individually controlled volume size;
Each audio junction box has ten separate audio output ports, up to 100 desk extensions.
Audio junction box:
Input interface: local RCA stereo line input, network radio terminal audio input two kinds of input methods;
Output interface: there are ten independent 4 core bus output ports, each path can be up to 10 desk extensions.
Desk extension:
Volume control: each desk extension can adjust the volume by pressing the button;
Volume display: two digital tube synchronous display the current volume;
Extension of sound quality: the use of professional fever headphone amplifier program to ensure the perfect sound quality;
External interface: 3.5mm Stereo Headphone jack;
Automatic standby: Desk extension in no operation or unplug the headset, automatically turn off the digital display.
System products:
Intercom equipment: classroom listening, listening classroom audio box LS-J desk extension LS-A1.
System wiring diagram: