The OC Series are professional quality, passive output combiners. These units are designed for use in headends to combine the outputs of multiple modulators and processors. The OC Series employs radiation-proof passive components that provide excellent signal reproduction and years of reliable service. Three models are available, including: OC-8d, 8 inputs; OC-12d, 12 inputs; and OC-16, 16 inputs. The OC-8d, OC-12d and OC-16 feature high isolation between ports and a low net combining loss from each of the broadband inputs (5 to 1000 MHz). A 20 dB test port is provided for signal monitoring without disrupting service.