求翻译：综合布线系统采用开放式分层星形拓扑结构，按6类标准设计，七个独立子系统完成，采用普天公司的6类布线系统实现电话、数据、图文、图像等多媒体业务的传输；电视信号来源主要引自市政有限电视网，通过分支器引到各端点，系统前端设在弱电间内；会议系统对投影、扩音以及语音系统进行设计，对大多数的端口进行预备。是什么意思？

Open cabling system uses hierarchical star topology, according to six categories of standard design, complete seven independent subsystems, with Prudential's Category 6 cabling system for telephony, data, graphics, images and other multimedia services transmission; TV signal taken from the main sour

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The comprehensive wiring system uses the open style lamination star type topology, according to 6 kind of standard designs, seven independent subsystems completes, uses the Pu day company 6 kind of wiring system realization telephone, the data, the chart article, the image and so on the multimedia s

Integrated wiring system used open tiered star shaped topology structure, by 6 class standard design, seven a independent subsystem completed, used Putian company of 6 class wiring system implementation phone, and data, and graphic, and image, multimedia business of transmission; TV signal sources m

Integrated wiring system used open tiered star shaped topology structure, by 6 class standard design, seven a independent subsystem completed, used Putian company of 6 class wiring system implementation phone, and data, and graphic, and image, multimedia business of transmission; TV signal sources m