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D-Sub DB-25 Pin Assignments

AES I/O

I/O Mode can be configured in the software to set the physical connectors between 8×8 I/O channels and 4×12 I/O channels.
Please note: AES3 is running digital audio in channel pairs (stereo) on one physical pin.

Pin (Female Connector)

I/O Mode: 8×8 I/O

I/O Mode: 4×12 I/O

1

Output Pair 4 +

Output Pair 4 +

2

Ground

Ground

3

Output Pair 3 -

Output Pair 3 -

4

Output Pair 2 +

Output Pair 2 +

5

Ground

Ground

6

Output Pair 1 +

Output Pair 1 +

7

Input Pair 4 +

Output Pair 6 +

8

Ground

Ground

9

Input Pair 3 -

Output Pair 5 -

10

Input Pair 2 +

Input Pair 2 +

11

Ground

Ground

12

Input Pair 1 -

Input Pair 1 -

13

Not Used

Not Used

14

Output Pair 4 -

Output Pair 4 -

15

Output Pair 3 +

Output Pair 3 +

16

Ground

Ground

17

Output Pair 2 -

Output Pair 2 -

18

Output Pair 1 +

Output Pair 1 +

19

Ground

Ground

20

Input Pair 4 -

Output Pair 6 -

21

Input Pair 3 +

Output Pair 5 +

22

Ground

Ground

23

Input Pair 2 -

Input Pair 2 -

24

Input Pair 1 +

Input Pair 1 +

25

Ground

Ground

Analog I/O

I/O Mode can be configured in the software to set the physical connectors between 8×8 I/O channels and 4×12 I/O channels. The outputs on the Analog I/O connectors thus are labeled to be the upper 4 of the total 12 outputs.

Pin (Female Connector)

Mode: 8×8 I/O

Mode: 4×12 I/O

1

Input 8 +

Output 12 +

2

Ground

Ground

3

Input 7 -

Output 11 -

4

Input 6 +

Output 10 +

5

Ground

Ground

6

Input 5 +

Output 9 +

7

Input 4 +

Input 4 +

8

Ground

Ground

9

Input 3 -

Input 3 -

10

Input 2 +

Input 2 +

11

Ground

Ground

12

Input 1 -

Input 1 -

13

Not Used

Not Used

14

Input 8 -

Output 12 -

15

Input 7 +

Output 11 +

16

Ground

Ground

17

Input 6 -

Output 10 -

18

Input 5 +

Output 9 +

19

Ground

Ground

20

Input 4 -

Input 4 -

21

Input 3 +

Input 3 +

22

Ground

Ground

23

Input 2 -

Input 2 -

24

Input 1 +

Input 1 +

25

Ground

Ground

Analog Outputs

Pin (Female Connector)

Function

1

Output 8 +

2

Ground

3

Output 7 -

4

Output 6 +

5

Ground

6

Output 5 -

7

Output 4 +

8

Ground

9

Output 3 -

10

Output 2 +

11

Ground

12

Output 1 -

13

Not Used

14

Output 8 -

15

Output 7 +

16

Ground

17

Output 6 -

18

Output 5 +

19

Ground

20

Output 4 -

21

Output 3 +

22

Ground

23

Output 2 -

24

Output 1 +

25

Ground

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