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有限电视器材系统组成

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有限电视器材系统组成

发布日期:2020-12-24 00:00 来源:http://eszarzis.com 点击:

    现阶段,在我国的有线电视系统一般全是由视频信号和主机房设备、前端开发设备、传输网络、分配网络、客户终端设备五个一部分构成的总体系统软件。

    (1)SHIPINXINHAOHEZHUJIFANGSHEBEI。YOUXIANSHUZIDIANSHIZONGYIJIEMULAIYUANYUBAOHANTONGXUNWEIXINGDIMIANZHANJIESHOUDEFANGZHENMONIHEDASHUZIDIANSHIXINHAO,DANGDIWEIBOJIAREZHANFASHEDIANDEDIANSHIXINHAO,DANGDIDIANSHITAIJIEMUFASHEDIANDEDIANSHIXINHAODENG。WEIBAOCHISHIPINXINHAODEBOFA,ZHUJIFANGNEIYAOYOUWEIXINGJIESHOUJI、FANGZHENMONIHEDASHUZIBOFANGQI、ZHINENGKONGZHIMIANBAN、JIANKONGSHEXIANGTOU、JINENGWENTUJIEJUESHEBEI、BIANXIESHEBEI、SHIPINFUWUQI,KEHUJIANDUKONGZHISHEBEIDENG。

    (2)QIANDUANKAIFASHEBEI。QIANDUANKAIFASHEBEISHIJIEJINSHIPINXINHAOYUZHUGANXIANCHUANSHUWANGLUOZHONGJIANDESHEBEI。TABAJIESHOULAIDEDIANSHIXINHAOKAIZHANJIEJUEHOU,ZAIBASUOYOUDIANSHIXINHAOJINGQIEHUANFAHUNHE,SUIHOUSONGJINZHUGANXIANCHUANSHUWANGLUO,YIBAOCHIDUOSHUJUXINHAODEDANLUCHUANSHU。QIANDUANKAIFASHEBEISHUCHUSHUJUXINHAOPINLVFANCHOUKEZAI5MHz—1GHzZHONGJIAN。QIANDUANKAIFASHUCHUKEPEIDIANLANXIANZHUGANXIAN,YEKEPEIGUANGLANDIANLANHEWEIBOJIAREZHUGANXIAN。

    (3)CHUANSHUWANGLUO。CHUANSHUWANGLUOCHUZAIQIANDUANKAIFASHEBEIHEKEHUFENPEIWANGLUOZHONGJIAN,QIGONGXIAOSHIJIANGQIANDUANKAIFASHUCHUDEGEZHONGGEYANGSHUJUXINHAOBUSHIZHENDI、PINGWENDICHUANSHUJIKEHUFENPEIYIBUFEN。CHUANSHUMEITINENGGOUSHISHEPINTONGZHOUDIANLAN、GUANGLANDIANLAN、WEIBOJIAREHUOTAMENDEZUCHENG,DANGJINYINGYONGSHUZUIDUODESHIGUANGLANDIANLANHETONGZHOUXIANHUNHE(HFC)CHUANSHU。

    (4)分配网络。有线数字电视接线端子的分配网络全是选用电缆线传输,其功效是将放大仪輸出数据信号按一定电平分配给楼幢模块和客户。

    (5)KEHUZHONGDUANSHEBEI。KEHUZHONGDUANSHEBEISHISHOUDAOJIAJIAHUHUDEKEHUDUANKOUHAO,KEHUDUANKOUHAOYUDIANSHIXIANGJIE。XIANJIEDUAN,KEHUDUANKOUHAOGUANGFANXUANYONGDANKOUKEHUHEHUOSANKOUKEHUHE,HUOCHUANLIANYIZHIXI。JIANGLAIKEHUZHONGDUANSHEBEIBAOHANDIANSHIJIDINGHE、DIANLANXIANDIAOZHIDIAOJIEQI、JIERAOQIDENG。

    有限电视器材系统组成

相关标签:放大器外壳