Control & Communication Cables Extron control cables are terminated with 15-pin HD or 9-pin D male or female connectors and are used to interconnect RS-232 controlled devices within a professional AV system such as communications between the System 5 IP or System 7SC system switchers, as well as the full line of MediaLink® Controllers, and most RS-232 controllable displays. On this page: RS-232 Cables Control Cables and Adapters RS-232 Cables 232 Series 9-pin D Male to Female RS-232 Cables Control Cables and Adapters Universal Projector Control Cables Female 9-pin D Connector to Unterminated - Captive Screw Ready CFG Cable 9-pin D Female to 2.5 mm TRS Configuration Cable USB CFG Cable USB A Male to USB Mini B Male Configuration Cable