技术特点
1.符合IEC60914、GBT15381-94国际标准
2.采用全数字会议技术，基于数字网络架构开发，内置高性能CPU处理器，处理速度更快，音质更佳，支持讨论、视像跟踪功能
3.高性能开关电源供电，长距离传输对音质不会有任何影响
4.抗干扰电路设计，杜绝一切手机信号的干扰
5.★采用5寸全视角IPS电容触摸屏，直观显示和方便调节系统的各项参数
6.★支持USB录音，高保真WAV格式输出
7.★具有3组共6路RJ45的话筒单元接口，采用闭环以太网链接模式，支持话筒单元的双边供电，且支持话筒单元热插拔，每路支持20个单元，可接60个单元
8.★同时具有4路8芯话筒单元接口，每路支持30个单元，可接120个单元
9.★单台主机通过扩展电源最多可接256台会议单元，亦可通过会议扩展主机（多个扩展主机之间手拉手串联连接），一套会议系统最多可接入达1200台会议单元；
10.单元采用“手拉手”连接方式，支持热插拔，方便安装和维护
11.具有多种会议模式： FIFO（*先出模式）、APPLY（申请模式）、FREE（自由模式）、LIMIT（限制模式）、VOICE（声控模式）
12.发言人数限制功能：可以限定最多同时发言的单元数量（可设置为1-8不同数量），主席单元不受限制
13.发言时间限制功能：可以限定发言单元的发言时间（可设置0-1000S），并有定时关闭和自动关闭两种模式，主席单元不受限制
14.★系统具备会议服务功能，发言单元可申请茶水、咖啡、纸、笔、服务人员等服务
15.★采用高性能DSP处理器对音频进行32段均衡处理、降噪处理，使声音清晰透彻；配合现场调整参数并有效的抑制啸叫
16.★网络化协作管理，系统主机可设置IP地址，具有TCP/IP网络接口，可连接无线路由器，使用同一局域网内的电脑、手机、平板等设备对主机进行操作设置，支持苹果iOS/谷歌Android/微软Windows系统等操作系统
17.★具有USB接口，可连接电脑对主机进行操作设置
18.具有摄像头232和485通讯接口（6P凤凰插），连接标清或高清摄像头，支持SONY VISCA、PELCO P/D通讯协议
19.具有视频切换232接口（3P凤凰插），可连接高清视频矩阵
20.★具有4x1 HDMI高清视频切换接口(选配)
21.具有中控代码232接口（3P凤凰插），可连接中控系统
22.具有1路平衡音频输出接口（3P凤凰插），可连接扩声或录音设备
23.具有1路非平衡音频输出接口（3P凤凰插），可连接扩声或录音设备
24.★具有1路DANTE音频输出接口，可连接其他DANTE设备(选配)
25.具有1路非平衡音频输入接口（2P凤凰插），可输入外部音频信号（如：背景音乐或远程语音信号）
26.★具有警报信号输入接口（警报电压接口+1路2P凤凰插警报音频输入口），当公共广播警报系统启动时，可自动暂停会议，并向与会单元发送警报信息
27.可安装于19英寸标准机柜上，易于存放和保管

Features
1.Comply with IEC60914, GBT15381-94 international standards
2.Adopt all-digital conference technology, developed based on digital network architecture, built-in high-performance CPU processor, faster processing speed, better sound quality, support discussion, video tracking functions
3.High-performance switching power supply, long-distance transmission will not have any impact on sound quality
4.Anti-interference circuit design to eliminate all interference from phone signals
5.5 inch full-view IPS capacitive touch screen, intuitive display and easy adjustment of system parameters
6.Support USB recording, high-fidelity WAV format output
7.It has 3 groups of 6-channel RJ45 microphone unit interfaces, adopts closed-loop Ethernet link mode, supports bilateral power supply of microphone units, and supports hot-plugging of microphone units. Each channel supports 20 units, which can be connected to 60 units.
8.With 4 channels of 8-core microphone unit interface, each channel supports 30 units, can be connected to 120 units
9.A single host can be connected to a maximum of 256 conference units through the expansion power supply, or a conference expansion host (multiple extension hosts are connected in series in hand), and a conference system can access up to 1200 conference units;
10.The unit adopts "hａnd in hand" connection mode, which supports hot plugging, which is convenient for installation and maintenance
11.With a variety of conference modes: FIFO (first in, first out mode), APPLY (application mode), FREE (free mode), LIMIT (restricted mode), VOICE (voice control mode)
12.Speaker limit function: can limit the maximum number of units that can speak at the same time (can be set to 1-8 different numbers), the chairman unit is not limited
13.Speaking time limit function: can limit the speaking time of the speaking unit (can be set to 0-1000S), there are regular shutdown and automatic shutdown, the chairman unit is not limited
14.With conference service function, speaking unit can apply for tea, coffee, paper, pen, service personnel and other services
15.Use high-performance DSP processor to perform 32-bａnd equalization and noise reduction on the audio to make the sound clear and thorough; effectively prevent howling
16.Network-based collaborative management, system host can set IP address, with TCP / IP network interface, can connect to wireless router, use computer, phone, tablet and other devices in the same local area network to set the operation of the host, support Apple iOS / Android / Microsoft Windows systems and other operating systems
17.With USB interface, can be connected to a computer to set up the host
18.With camera 232 and 485 communication interface (6P Phoenix interface), connect SD or HD camera, support SONY VISCA, PELCO P / D communication protocol
19.With video switching 232 interface (3P Phoenix interface), can connect HD video matrix
20.With 4x1 HDMI HD video switching interface
21.With central control code 232 interface (3P Phoenix interface), can be connected to central control system
22.With 1 balanced audio output interface (3P Phoenix interface), can be connected to sound reinforcement or recording equipment
23.With 1 unbalanced audio output interface (3P Phoenix interface), can be connected to sound reinforcement or recording equipment
24.With 1 DANTE audio output interface, can connect other DANTE equipment
25.With 1 unbalanced audio input interface (2P Phoenix interface), can input external audio signals (such as background music or remote voice signals)
26.With alarm signal input interface (alarm voltage interface +1 2P Phoenix interface alarm audio input port), when the public address alarm system starts, it can automatically pause the conference and send alarm information to the participating units
27.Can be installed in a standard 19-inch cabinet for easy storage and storage