Parameters:

1. Adopting DSP/DDOV digital processing and transmission technology, complying with IEC60914 international standard, GBT15381-94 and GB50799-2012 national standard;

2. Equipped with a 3.5-inch TFT display screen and five dimensional navigation control buttons, equipped with Chinese and English menus, capable of completing all system settings without the computer, improving installation and debugging efficiency;

3. Unique DCP/MOVE digital processing and transmission technology, no matter how many devices are undisturbed, all digital transmission overcomes the attenuation problem of long-distance transmission. The transmission distance of six core wire can reach 250 meters, and the transmission distance of network cable can reach 150 meters;

4. The connection method adopts a 6-core DIN shielded cable or a 2-meter Category 6 Ethernet cable, which can effectively avoid and prevent electromagnetic interference in the line, ensuring that data is never lost;

5. Equipped with 3 unit outputs, each six core interface can connect to 25 conference speaking units, a single host can connect to 75 conference speaking units, each network cable interface can connect to 15 conference speaking units, and a single host can connect to 90 conference speaking units (the number of connections can be determined according to the power size of each unit);

6. Using a 48KHz audio sampling frequency, the frequency response can reach 20Hz-20KHz;

7. Equipped with 2 RS-232 interfaces, programmable central control system for control;

8. Equipped with various connection methods such as linear, circular, and T-shaped/ten shaped connectors;

9. Adopting ID addressing, customizable numbering, and automatically detecting the online list of hosts and units upon startup, it can monitor the system's operation in real time and be clear at a glance;

10. Equipped with intelligent automatic protection technology, it can ensure that the conference audio signal is not interrupted in case of non power failure of the conference host;

11. Equipped with multiple internal communication and conference service functions, supporting conference units to send notifications of tea, paper, pens, servers, and other needs;

12. Equipped with a single NET interface, supporting conference display connection, and customizable display content;

13. Support quick system fault location without affecting the operation of other devices;

14. It has short message function and can communicate internally with other units;

15. Built in adaptive feedback suppression (AFC), environmental noise cancellation (AEC), digital equalizer (EQ), and automatic gain control (AGC) functions;

16. Built in equalizer, which can adjust the signal output of the system to meet different venue occasions;

17. It has four working modes: quantity limit, first in, first out, speech request, and voice activated. The number of speakers can be set to 1 to 6;

18. Equipped with voice stimulation function, the microphone automatically turns on when speaking, and automatically turns off when no speech is detected;

19. Supports connecting 8 high-definition cameras, with built-in 8 x 4 video matrices. Without software and control keyboard, camera tracking settings, saving, and automatic calling can be performed;

20. Supports SONY VISCA, PELCO-D/P, B01 protocols, and RS-485/RS-232 control;

21. The high-definition video decoding box can be connected to the high-definition matrix to achieve automatic switching of high-definition video signals, and has the function of camera linkage and image freezing;

22. The host and computer adopt TCP/IP connection method, supporting remote control, remote diagnosis, and program upgrade, easily completing after-sales and technical support work;

23. Equipped with 1 set of XLR and 2 sets of RCA audio input interfaces, capable of inputting background music, wireless microphones, condenser microphones, alarm signals, etc;

24. Equipped with 1 set of XLR and 2 sets of RCA audio output interfaces, which can be connected to sound reinforcement systems, recording systems, remote video conferencing systems, etc;

25. Support balanced audio input and output to reduce audio line transmission losses;

26. It can be connected to other capacitive microphones or dynamic microphones, providing users with more choices;

27. The system's startup voltage, startup delay, mute delay, output gain, and input/output volume can be centrally set;

28. The system supports dual machine hot backup and conference room merging/splitting functions, suitable for various conference application venues;

29. The network unit system can simultaneously connect 90 chairman units, and the six core unit system can simultaneously connect 75 chairman units. The chairman units have priority functions and can also shut down other representative units that are speaking;

30. With strong resistance to mobile phone interference, it never produces noise during incoming calls, and can be used normally even in venues with mobile phone signal blockers;

31. The system has an automatic repair function and supports hot swapping of live lines, ensuring greater security of the system;

32. The system can be centrally managed and controlled through conference management software and central control system;

33. It can be used in conjunction with a telephone coupler for multi-party remote television and telephone conference functions;

34. Cooperate with network conferencing software or video conferencing terminals to achieve multi-party remote video conferencing functions;

35. It has the function of restoring factory values, which can correct unit buttons, reset speaker settings, ball machine parameters, working mode and other parameters to prevent parameter tampering;

36. Equipped with intelligent identity recognition function; Can allocate meeting permissions;

37. Adopting three-level anti-static and lightning protection technology, it can resist 8000V static electricity and comply with the national standard GB/T17618-1998;

38. Built in AC100V~240V international universal power supply and voltage stabilization system, ensuring safe and stable use of voltage in unstable situations