Shure DIS
  • DIS-CCU 中央控制单元 
  • 概述

    DIS-CCU 中央控制单元是 DDS 5900 数字讨论系统和 DCS 6000数字会议系统的核心。使用专有 DCS-LAN 协议,串行“菊链”拓扑架构,在 CAT 5e(或更高)屏蔽电缆上将数字音频、控制数据和电源分配给主席、代表、译员单元。

     

    DIS-CCU 包括 2 个用于外部音频源的模拟音频输入,以及 8 个模拟音频输出,用于连接视频会议系统、录音机/摄像机、扩音系统或无线同声传译系统。
     

    DIS-CCU 将“源语言”音频与同声传译通道混合,分配至每个讨论或发言单元。最多可同时使用 8 个话筒。支持四种不同的话筒工作模式:自动、先入先出 (FIFO)、VOX(语音激活)、手动。

     

    Web 浏览器界面允许通过电脑或平板电脑进行话筒控制和系统配置。分别为管理员、主席、显示单元设置不同的 IP 地址。通过TCP/IP 协议与第三方媒体控制系统连接。

     

  • 特点

    数据

     

    系统性能
    下列表格中的最大单元及通道数量根据 DDS 5900 系统计算。
    讨论单元最大数量                                                                      250
    CU 5905 供电的讨论单元数量                                                   最多 60 个
    开启“源语言”话筒最大数量                                                    8
    语言最大数量(同声传译员通道)                                             2
    同声传译员单元最大数量                                                           32


    网络
    DCS-LAN 输出                                                                          四 (4) 个 RJ45 插座
    TCP/IP                                                                                       一 (1) 个 RJ45 插座


    音频
    音频输入
    模拟输入 1                                                                                一个 3 针脚 XLR 插座(平衡)
    额定输入电平(输入 1)                                                           可切换:
                                                                                                      • 0 dBm (0.775V RMS)
                                                                                                      • -10 dBm (0.245V RMS)
    最大输入电平                                                                            +15 dBm (4.5V RMS)
    输入阻抗                                                                                   50-100 kΩ
    模拟音频输入 2(音频输入或紧急输入 - EEM)                       一个 3 针脚 XLR 插座(平衡),带继电器闭合

    音频输出
    模拟输入音频                                                                            八 (8) 个 3 针脚 XLR 公插孔(平衡)
    最大负载                                                                                   > 1 k ohm
    额定输出电平                                                                           额定输入时为 0 dBm
    最大输出电平                                                                            4.9V RMS ~ +16 dBm

     

    电气部分
    功耗                                                                                          22W/48V(最大 150W)
    话筒单元的电源电压                                                                 122W/48V
    音质                                                                                          24bit 音频,
                                                                                                     32 kHz 采样频率
    频率响应                                                                                   65 Hz-16 kHz
    THD                                                                                          < 0.1 %
    信噪比                                                                                       > 85 dBA


     

    机械特性
    安装方式                                                                                  • 桌面式
                                                                                                    • 标准 19" 机架
    尺寸(高 x 宽 x 深)                                                              (1.75 x 16.8 x 7.2 英寸)
    颜色                                                                                         黑色
    重量                                                                                         2.8 kg (6.17 lbs.)
    温度范围                                                                                 存储:-20° 至 60° C,
                                                                                                   湿度:10-80%
                                                                                                   使用:5° 至 40° C,
                                                                                                   湿度:35-80%


    PS CCU 外部电源 (SNP-A15T):
    主电压                                                                                   名义100-240 V, 50-60 Hz
    最大功耗                                                                               175 W
    总功耗                                                                                   144 W(功率因子:>0.9)
    待机功耗                                                                                <0.5 W(无负载)
    电源电压                                                                               48V/3A @ 40°C[1]
    效率                                                                                      87%,典型
    浪涌电流                                                                               • 230 V: <80 A
                                                                                                 • 115 V: <40 A

     

     

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