Hall Technologies October 6, 2023
Page 7 of 16
Connectors & Indicators
HD-AUD-IO Front
No.
Name
Description
1
Mini-USB Port
Used by Windows GUI and to update system firmware.
2
CONTROL Terminal
Strip
a. RX, GND and TX - RS-232 Port: Connect to an external RS-232 controller to control the
HD-AUD-IO.
b. Digital Input: Connect to an external control for system output muting control based
on the configured 'Digital Input Action'.
3
HDMI In
Connect to a compatible HDMI Source
4
EXTRACTED AUDIO
- SPDIF Out
Connect to other compatible digital audio equipment.
5
EXTRACTED AUDIO
- L/R Out
Connect to other compatible line-level audio equipment.
6
5VDC
Connect to the included power supply.
1
2
3
4
5
6