44
8.
Alarm LED indicator
9.
RS-232: Connect to PC serial port with a DSUB-9 male-male cable here
10.
IR Blaster: Infrared 3.5mm socket for plugging in the extension cable of IR blaster
11.
IR Receiver: Infrared 3.5mm socket for plugging in the extension cable of IR receiver
12.
Dip Switch: Video channel selection
13.
USB: Connect to upstream USB host
14.
Dip Switch: RS-232 mode selection, [ON] debug mode; [OFF] bypass mode