The Digital Media Port (DMP or DMPort) is an interface for analog audio and video signal and digital control that Sony proposed for some of its A/V products.
|5||Rxd||RS232? Used for communication between the DMPortaccessory and the receiver|
|6||Txd||RS232? Used for communication between the DMPortaccessory and the receiver|
|7||DET||Tie to ground the DET to signal the receiver that something is connected|