POC (power over coax) series surge protector utilizes state-of-the-art hybrid circuit technology to protect Ethernet and PoE extenders from damaging transients, typically induced onto long video feeds that run between head-end equipment and externally mounted cameras. The DTK-RM16POC is a 16-channel device, used to protect switches and head-end equipment. For complete protection install the RM16POC at the head-end, and the individual POC at each externally mounted camera.