Multimedia ClassroomTerminal

1. Video input: 4-way HDMI input interface

2. Video output: 6-channel HDMI interface, HDMI3-HDMI6 homologous expansion output

3. Audio input: 8-way Phoenix terminal input, support 48V phantom power supply, MIC input and line in linear input can be switched

4. Audio output: 2 pairs of L/R Phoenix terminal stereo output (L/R can output audio source independently), 2-way 100W@8 ohm digital amplifier output

5. Control port: 3-way RS-232/RS-485, 1-way Debug, 2-way RELAY, 2-way I/O, 2-way infrared IR

6. Gigabit network switch: 1 WAN port, 5 LAN ports, VLAN can be divided, LAN1-LAN4 supports POE power supply

8. USB interface: USB Type-A*2, USB Type-B*1, supports automatic copying of recorded content and system upgrade

9. Built-in 2TB hard disk

10. Standard 19-inch rack installation, height 2U

11. Built-in OPS slot module, connected to standard OPS computer module

12. Built-in wireless microphone module, supports U-band wireless microphone

13. Built-in AI audio board, supporting AI noise reduction and de-obfuscation

14. Built-in automatic broadcasting module, supports multi-camera access, and realizes video recording function

(1) OPS computer ( 2 ) Host power switch (3) Host power (4) Gigabit Ethernet ports * 6 (4 of which are POE) (5) IR infrared interface * 2 (6) RS-232/485 interface * 3 + RS-232/485 debug port * 1 (7) RELAY control port * 2 (voltage and current: 12V/not more than 1A) (8) I/O interface*2 (voltage and current: 12V/not more than 1A) (9) USB Type-A *2, USB Type-B*1 (10) HDMI output port* 6 ( 1 1) HDMI input port *4 ( 1 2) Amplifier terminals * 2 pairs (13) L/R Phoenix terminal stereo output * 2 (14) MIC/LINE input port * 8 (15) CAST wireless projection (16) UHF wireless speaking module

1. Support HDMI signal and network RTSP stream signal access, independent encoding and decoding of each HDMI video , 8-channel 1080P@30 encoding and 8-channel 1080P@30 decoding; support H.265 and H.264

2. Video interaction has a maximum anti-network jitter capability of up to 600ms, ensuring that the smooth progress of interactive calls is basically not affected when there is network jitter. The maximum main and secondary streams can be adjusted to 8Mbps, the maximum flow control is 20 times, the I frame request interval can be adjusted, and the maximum decoding error tolerance threshold is 100

3. The host has built-in hybrid multi-screen synthesis, supporting various video switching, allocation, subtitle overlay, image parameter adjustment, and mosaic configuration

4. Built-in local recording and storage functions, supporting up to 6 channels of video and audio recording (movie mode and resource mode); supports RTMP live streaming push function, and the live streaming can arbitrarily select the audio and video stream connected to the local machine; recorded videos can be played on demand on the WEB, or output to the display through HDMI for decoding and playback; supports docking with third-party FTP platforms, uploading recorded courseware, the upload time can be customized, and the recording time can be set for each day (maximum 24 hours)

5. The recorded MP4 files can be downloaded from the W EB terminal. You can choose to download the movie mode files or all files. The recorded files can be sorted by time and recording duration. You can also download the files directly to a USB flash drive

6. Built-in video splitting and synthesis function, which can realize single-screen, double-screen, three-screen, nine-screen, sixteen-screen and other single-screen/picture-in-picture/picture-out-picture synthesis and subtitle overlay

7. Support access to distributed control systems, support terminal access to image preview, distributed visualization control and distributed on-screen display, and be used as a distributed input and output interface machine

8. Audio processor module mixing function: supports mixing of local audio, HDMI embedded audio, OPS computer audio, built-in wireless microphone audio, and remote network audio stream into the local audio interface; also supports mixing of local audio, HDMI embedded audio, and network audio stream into the network audio module

9. Audio processing module, built-in AFC, ANS, AEC, AGC audio processing algorithms, equipped with expander, equalizer, compressor, delay, limiter and pre- and post-processing modules; mixing settings, support MIC/LINE, HDMI, OPS computer audio, AI audio, network audio input, audio routing can flexibly configure LINE OUT, HDMI OUT, power amplifier AMP OUT output

10. Support SIP dual-stream video conference calls, support extended multi-point video interaction, and support 1+3-party remote teaching video interaction

11. Communication protocols: SIP, BFCP dual stream, RTSP, RTMP, TCP/IP, FTP, UDP, TLS

12. Support automatic copying of host recording files to USB flash drive, support copying of the latest class and one week's course, forced upgrade of USB flash drive system and restoration of initial configuration

13. The Web has a built-in automatic broadcasting station, which supports automatic, semi-automatic and manual broadcasting modes; supports PVW and PGM screen switching, recording, pausing and stopping operations; camera operation, screen synthesis operation and live broadcast start; supports timetable linkage settings

14. The director station supports previewing of laptop computer screens, desktop computer screens, teacher panorama, teacher close-up, student panorama, student close-up, left blackboard, right blackboard, and PVW and PGM screens; and according to the director strategy, it can perform automatic, semi-automatic, and manual director control

15. The director's station supports the linkage with the platform for class schedules, and performs automatic recording and automatic directing according to the class schedule strategy

16. Camera control of the director station, supports control of the front-end camera, setting preset positions, calling preset positions, supports 10 preset positions; supports control of camera focal length and horizontal rotation

17. The director station supports recording and broadcasting control, supports recording and broadcasting start, pause, and stop operations; supports live broadcast start and stop operations; supports automatic, semi-automatic, and manual director settings

18. The director's console supports layout settings, supports 12 fixed video synthesis mode layout calls, and can customize 6 layout modes

19. The director's station supports video mode layout settings for HDMI1, HDMI2, and virtual multi-screen channels

20. WEB supports changing the control panel login method, and the login method supports single password login and username + password login

21. Support automatic acquisition or manual setting of device IP address, gateway, and mask information, and support VLAN division and NAT configuration of network ports

22. Support video encoding settings, you can set the video encoding quality, frame rate, bit rate (128K-8M), resolution, I frame interval, I frame and P frame quantization coefficient

23. Support multicast function, you can set multicast address and multicast port

24. Support automatic recording and broadcasting configuration, set the teacher, student, blackboard camera access stream information, manually configure the director code, director switching code; director recording screen channel

25. Support configuration of automatic broadcast event triggering event priority and triggering event retention time

26. Environmental control management: you can configure central control commands for each RS232/485, I/O, and infrared control interface, set scripts, protocols, scheduled tasks, IoT gateways, audio and video linkage, device wake-up, network control, Huawei screen control (Hongmeng), two-way analysis and other control functions

27 , 1. Supports up to 16 network video streams access, can flexibly monitor the audio and video protocols, bandwidth data, network packet loss data of the accessed video streams, and set mosaics for the video streams; 2. RTSP stream forwarding service, supports previewing and watching each RTSP forwarding stream on the WEB page, setting each stream audio protocol (AAC, G711, G722), and video access source selection

28. Support system configuration file import and export, Android control tablet configuration file import and download

29. The recorded video can be played on demand in multiple screens on the WEB, or output to the display through HDMI for decoding and playback; it also supports obtaining video files of similar devices in the same network for on-demand viewing