随着宽带网络基础设施从铜线升级到光缆，和处理为处理大批量数据使用新设备，同样的问题也困扰着有线电信网络。
The same problem also affects fixed-line telecoms networks, as broadband infrastructure is upgraded from copper wires to optical fibres and new equipment is installed to handle larger volumes of data.
海底光缆路由勘察使用先进的仪器设备，采集的是数字化信息，能快速准确的成图。
The advanced instruments and equipment were used for the submarine fiber optic cable route surveys, and the collected digital information can be used to quickly and correctly make the maps.
过去CAT V光缆网光设备价格昂贵，故设计的光接收点较少。
In the past, CATV optical cable networks were costliness due to the price of optical equipment, the designer design optical receiver point little.
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