The dual system dual backup digital conference system realizes the expansion of more conference functions such as meeting basic discussion, fully combines the unique digital technology, network technology and digital audio technology, and realizes the high-speed transmission of data under the condition of high bandwidth, so as to further improve the restoration degree of microphone and the transmission speed of sound, reduce the sound loss, and ensure the high fidelity audio of microphone timbre When using shielding system and high-speed DSP module, combined with digital frequency shift technology and suppression technology to control howling, immunity to high-frequency noise, environmental noise and electromagnetic interference, the perfect sound quality will be presented to users. It can realize seamless connection with intelligent central control system and video conference system, and provide a complete solution for efficient modern conference system engineering. Functional featuresUsing dual system, dual backup, multi-channel system unit connection and backup ring connection, four channels of 8-core dedicated conference unit connection port, four channels of RJ45 network cable connection port, each channel supports 30 units, up to 6 chairman units, up to 120 conference system units can be connected, expansion host and conference repeater can be connected, up to 1000 conference system units can be used at the same time;
The original high-speed embedded digital hardware architecture processing and transmission technology, compatible with iec60914 and gbt15381-94 standards, makes the system running speed and stability reach an unprecedented level;
Full digital audio processing technology, all channels of sound CD quality processing, effectively prevent feedback and interference, ensure the perfect and clear sound quality, privacy and security of the meeting;
The conference unit can be used in two ways: super class 5 (Class 6 or 7) network cable RJ45 crystal head or 8-core special conference cable. It can be used according to the needs of users' environment, effectively resisting interference, more convenient installation and more reliable transmission;
When the conference unit adopts the ring circuit connection method (1 output and 1 backup input), even if the intermediate connecting line or conference unit fails, it will not cause the system crash and paralysis, so as to ensure the efficient and normal use of the system;
The system connection adopts low-voltage DC 24 V safe voltage to ensure the user's personal safety, low energy consumption, high safety and environmental protection;
It adopts 32-bit high-speed DSP floating-point processing, high bandwidth, acoustic feedback suppression, echo cancellation, noise cancellation, digital equalization effect and automatic gain;
The conference host has RS232 interface, and the conference unit has the world's unique serial number. The software can be customized according to the user's needs to connect the host or control equipment. Various types of conference equipment can be configured to meet the diverse user needs (optional customization);
It is equipped with 1.77 inch true color display screen to display system menu, host status and other information. All conference functions can be centrally controlled through the panel navigation keyboard;
The system host has the password lock screen function, which is convenient for users to manage their needs;
It supports USB recording and high fidelity wav format output;
The system has the function of automatic repair and supports the hot swap of the circuit;
The longest distance from the system host to the conference unit can reach 150 meters;
All conference units can display the use status in real time. When the indicator light is on, the microphone can speak;
With power-off automatic memory function, it can be used without setting again after power on, and can restore factory settings;
The speech mode of the meeting can be selected as FIFO (first in first out mode), free (full open mode), c-only (Chairman mode) and i-limit (limited mode);
1 channel of XLR audio output interface and 1 channel of 6.35mm audio output interface make the system more flexible to connect with the audio system;
International wide adaptive power supply design (AC100-240V, 50 / 60Hz), applicable to any country and region;
International standard 2U panel size, can be installed in 19 inch standard cabinet, easy to store and keep.

Specification parameters
Host power supply: AC 100v-220v, 50-60Hz
Frequency response: 20Hz-20KHz
SNR: > 102dba
Dynamic range: > 106db
Total harmonic distortion: ≤ 0.05%
Recording interface: USB × 1
Central control connection port: RS232 × 1
Unit interface: RJ45 network interface × 4, round head din-8 socket interface × 4
Audio output: 6.35mm socket × 1, XLR XLR socket × 1
Standby power consumption: 10W
Maximum power consumption: 350W
Installation method 19 inch standard cabinet
Dimension: (L × w × h) 483 × 235 × 67mm
Weight: 3kg
Color: Black