... with Display. VIDEO IN 2: DB15 joint, signal input port.VIDEO IN 1 5BNC: Signal input port, the same as VIDEO IN2.K1: Switching ... ,G,B these five BNC,one-one correspondence. Top Panel: signal input interface of No.2 channel & VGA output port. Definition of ... as below:4. Schematic Diagram of Connection1,Connect up the signal source, input signal.2,Connect up the Display.3,Plug in, then ...