After using this system, the broadcast and preparation for the English listening test in Grade Two, which originally required more than two people to complete at the same time, can be completed by only one person at present, or all the work can be completed unattended after being set in advance.
Bus transmission greatly reduces the amount of equipment construction and maintenance.
The hierarchical management of system power supply can protect the classroom from any noise interference.
Brief introduction of main functions:
1, one host manages 250 users, which means that 250 users can be connected on one bus. (Cascade mode 2 connects more users).
2. 10 grouping management function, which is convenient for management and operation. Grouping by grades makes each operation more convenient.
3. With temporary user operation control, each signal source is allowed to temporarily join 8 temporary emergency users.
4. Long-term storage of marshalling record data is not afraid of power failure.
5. It has the function of timing management of external equipment power supply and management signals, and realizes timing automatic management and control.
6. Allow two signal sources to work at the same time, which is convenient for switching user signals, allowing single-user switching and grouping switching.
7. Input can be made through a microphone, the microphone signal can be superimposed with the original signal, or another channel can be used to talk to a user or a group of people alone.
8. Both sound source input and microphone input have volume adjustment to adjust the signal amplitude ratio between different signal sources.
9. It has the function of cyclic monitoring according to users, which realizes the automation of system detection and greatly reduces the labor intensity of staff.
10, the timing function allows setting 64 switching times (including hours and minutes) for each channel.
1 1, the timing function can be selected for any week, which is suitable for different work units and different applications.
12, the query function can quickly view the current online workgroups and temporary users.
13, time correction and preset time input are all entered with numeric keys, which greatly improves the speed of time input.
14, the user terminal adopts switch coding, which is intuitive and convenient, and is suitable for technical installers of different levels to operate.
15, the host provides audio signals for the user terminal, and controls the power supply of the terminal at the same time, completely eliminating the influence of AC induced noise that sometimes appears when the classroom is quiet.
16, with external speaker expansion function, external speakers can be managed by switching power supply and signal in management, saving electricity and reducing noise.
17, 4-bit high-brightness digital clock display, after entering the working state, there is an independent status light to indicate the working state, and 4 digital tubes are used to display the working state.
18, with status indication of timing 1 and timing 2. 1 online and two online status indicators, the operator can easily grasp the current working status.
19, keyboard lock function. Prevent others from inadvertently changing the setting status and setting data.
20, manual power management, emergency equipment maintenance and maintenance.
2 1. Save and restore the current working status. The working state data saved in the shutdown state will not be lost, and the incoming call will be restored to the original working state in time.
22, convenient timing management, open and closed state has obvious signs.
23, fault diagnosis. When the terminal is abnormal, the host sends a fault diagnosis instruction to determine the fault.
24, automatic repair. The host sends a repair instruction, and the terminal completes its own fault repair.
25, terminal remote control call. The terminal calls the host computer with an infrared remote controller and asks for intercom.
26. Half-duplex call. When the line allows, the terminal remote controller controls to send sound to the host, and the host can also talk to the terminal.
27, remote control switch volume. Use the infrared remote controller to control the sound on or off.
28, remote control to adjust the volume. Using infrared remote controller to change the volume to realize remote tuning is more suitable for the actual situation that speakers are usually installed in a higher position in the classroom.
29. The controllable speakers in the classroom have status indicators, and the current status is clear at a glance.
30. The system host clock is powered by AC and standby batteries, and can be used continuously for 2 years when power is cut off.
3 1 with automatic bell ringing system. When it is used in school, the ringtone types can be distinguished according to different ringtones, which saves a ringtone system.
32, multi-host management, a parent host management 1-9 hosts. In other words, it is convenient and practical to use multiple hosts in different locations to manage different contents.