求翻译：功率分配器安装在漏泄电缆需要设置分支之处。分配器是一个无源网络，不需要直流供电，但须提供直流通路，以免切断后面中继供电。是什么意思？

Power Splitter installed in leaky coaxial cable needs to set up a branch here. Distributor is a passive network, DC power supply is not required, but are required to provide direct current path, so as not to cut off the relay power behind.