Appendix c pinout data, Io-4d, Audio inputs/outputs – Logitek Electronic Systems AE-32 Audio Engine User Manual
Page 41: Io-8d, Appendix c, Pinout data

Pinout Data
Logitek Audio Engine Reference Manual
39
Appendix C
Pinout Data
IO-4D
The IO-4D contains 2 x DB25 connectors, the top one being for inputs and the bottom for outputs.
The pinout designations for the input and output connectors are identical.
Audio Inputs/Outputs
Pin
Connection
Pin
Connection
1
I/O 1 AES +
14
Ground
2
I/O 1 AES -
15
Ground
3
Ground
16
Ground
4
I/O 2 AES +
17
Ground
5
I/O 2 AES -
18
Ground
6
Ground
19
Ground
7
I/O 3 AES +
20
Ground
8
I/O 3 AES -
21
Ground
9
Ground
22
Ground
10
I/O 4 AES +
23
Ground
11
I/O 4 AES -
24
Ground
12
Ground
25
Ground
13
No connect
TIP: If using unbalanced connections, jumper the negative pins to ground.
IO-8D
The IO-8D contains 2x DB25F connectors – top connector is for inputs and bottom for outputs. The
pinout designations for the input and output connectors are identical. DB25M plugs are required.
Audio Inputs/Outputs
Pin
Connection
Pin
Connection
1
I/O 1 AES +
14
I/O 2 AES +
2
I/O 1 AES -
15
I/O 2 AES -
3
Ground
16
Ground
4
I/O 3 AES +
17
I/O 4 AES +
5
I/O 3 AES -
18
I/O 4 AES -
6
Ground
19
Ground
7
I/O 5 AES +
20
I/O 6 AES +
8
I/O 5 AES -
21
I/O 6 AES -
9
Ground
22
Ground
10
I/O 7 AES +
23
I/O 8 AES +
11
I/O 7 AES -
24
I/O 8 AES -
12
Ground
25
Ground
13
No connect
TIP:
If using unbalanced connections, jumper the negative pins to ground.