The OC Series includes 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. Four models are available, including: OC-8d, 8 inputs; OC-12d, 12 inputs, OC-12f, 12 inputs, band filtered; and OC-16, 16 inputs.