1
COAX IN: Connects the coaxial audio source. Just plug in coaxial
audio source here.
2
OPTI. IN: Connects the optical audio source. Just plug in optical
audio source here.
3
DC 5V: Connects adaptor of DC 5V to power on the device.
4
SERVICE: Support rmware update in eld and supply power to
device instead of power adaptor.
5
OPTI. OUT: For optical audio output such as amplier.
6
COAX OUT: For coaxial audio output such as speaker.