Full Digital Conference System Host D7111

Full digital distributed conference system, adopting an ARM + FPGA + DSP audio processing architecture with network-based digital transmission.

Integrates multiple functions including speaking, sign-in, voting, rating, messaging, tea service, and zone output.

Equipped with DSP + FPGA processors, supporting 20-channel audio matrix zone outputs + 1 mixed output. Features include feedback suppression, 12-band EQ adjustment, and volume/delay control, with gain sharing available on the mixed output.

Supports ≥20 channels of wired and wireless role-based separated outputs. Each wired or wireless conference unit can be independently output based on its ID, enabling individual recording via recording software or integration with speech transcription systems.

Supports ≥20 channels of simultaneous interpretation outputs, with audio independently output by zone channels for recording or monitoring purposes.

Supports ≥20 channels of phased output, with a built-in ≥n×20 audio matrix processor enabling grouped output. Input sources (including LINE / EMC / MP3 and all active conference units) can be flexibly routed to any output channel.

Utilizes audio clock synchronization transmission technology, with latency < 5 ms and 48 kHz uncompressed audio transmission for high-fidelity sound quality.

Supports mixed use of wired and wireless conference units.

Supports up to 6 chairman units and 32 VIP units.

With expansion via PoE network switches, a single system supports up to 4096 wired conference units; via WiFi AP, up to 300 wireless conference units can be connected.

When only wired conference units are connected, up to 24 units can speak simultaneously; when only wireless conference units are connected, up to 6 units can speak simultaneously; when both wired and wireless conference units are connected, up to 18 wired units and 6 wireless units can speak simultaneously.

Supports main/backup redundancy switching, automatically switching to the backup host in case of failure to enhance system reliability.

Supports hand-in-hand (daisy-chain) connection and ring topology dual-link backup.

Supports independent recording and mixed recording of conference discussions; allows recording of a single conference unit or the mixed audio of all units; supports recording via USB storage on the main unit or through PC software.

Compatible with interpretation units, supporting up to 6 languages for simultaneous interpretation.

Supports single or dual meeting room modes; dual meeting room mode enables discussion function. Two conference rooms can share one main unit without interference.

Supports LAN port +48V power control, allowing LAN1, LAN2, and WiFi ports to output or cut off +48V power.  

Supports RS232 connection for seamless integration with central control systems; chairman units can control devices connected to central control modules.

Main unit integrates a camera tracking system; RS422 interface centrally controls cameras, enabling automatic camera tracking.

Uses TCP/IP network protocol and supports both C/S and B/S architectures.

PC or web interface allows adjustment of 20-channel audio zone matrix parameters (including EQ, volume, and delay), and individual conference unit EQ, volume, and unit sync switch; supports scene function with up to 10 preset scenes.

PC or web interface allows the main unit to initiate sign-in, voting, and rating.

PC software can monitor online wireless conference unit battery levels, WiFi signals, etc.; supports one-click power-off for all wireless units or individual unit control, and modification of UHF transmission frequency.

Supports five conference modes: FIFO, normal, voice, free, and apply.

Features unit detection function with automatic or manual detection.

Supports speech timing and countdown reminders. the timer can be set for each unit or turned off.

Supports three expansion module slots (two sizes); optional modules include 2K seamless matrix, 4K seamless matrix, UHF transmission, USB interface, central control, and audio input modules.

Audio interfaces: 1 × RCA stereo auxiliary input, 1 × RCA stereo alarm input, 2 × XLR balanced outputs.

+5V alarm trigger input, combined with alarm audio input, enables emergency override function.

Main unit and chassis reinforced with grounding; withstands 4kV contact discharge and 8kV air discharge.

4.3-inch full-color touchscreen with modular interface design, displaying system information at a glance.

2U standard chassis, compatible with 19-inch standard racks.