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12. Analog Audio Connection
For balanced input and output, connect the hot and cold wires of an analog audio signal to plus and
minus pins respectively.
For unbalanced input, connect the analog audio signal line to the plus pin and route the ground line
to the minus pin and COM pin.
For unbalanced output, connect the analog audio signal line to the plus pin and the ground line to
the COM pin.
Analog Audio IN/OUT Connector (25-pin D-sub, female, inch screws)
Pin Assignments
Pin No. Setting
1 CH4 OUT+
2 CH4 OUT COM
3 CH3 OUT-
4 CH2 OUT+
5 CH2 OUT COM
6 CH1 OUT-
7 CH4 IN+
8 CH4 IN COM
9 CH3 IN-
10 CH2 IN+
11 CH2 IN COM
12 CH1 IN-
13 NC
14 CH4 OUT-
15 CH3 OUT+
16 CH3 OUT COM
17 CH2 OUT-
18 CH1 OUT+
19 CH1 OUT COM
20 CH4 IN-
21 CH3 IN+
22 CH3 IN COM
23 CH2 IN-
24 CH1 IN+
25 CH1 IN COM
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