The PCO-818/SA is the change-over for an analog system. The modules included in this configuration are; 818-OP/BB, Analog Black burst 818-OP/SC, Analog Subcarrier 818-OP/PL, Analog Sync As your system grows and new technology arrives, the PCO-818 stands ready to grow with you. The PCO-818 is engineered to provide complete syncsystem reliability in a compact, easy to use, and economical package. It's advanced modular design provides a level of flexibility never before available in an Automatic Changeover...