A line power inserter combines RF signal and 60 or 90 volts AC and is placed after a line power supply. It inserts power into the trunk or feeder lines to serve the active modules while providing isolation between the AC and RF networks. A directional coupler is an unequal power divider; a splitter is an equal power divider. Both devices split the network’s trunk and feeder lines. The 1.2 GHz frequency rating of the line power inserters, directional couplers and splitters, coupled with outstanding insertion loss and hum modulation characteristics, ensure their reliable performance in the most demanding applications and DOCSIS 3.1 compatibility.