AP20 Installation and Operating Guide Version 1.25
Appendix A. Connector Pin-outs A-4 Document #: 9301H39200 Ver. 1.25
DIGITAL AUDIO IN (CH 1 – 8) – DB25F
Pin Description Standard Ch Assignment
1 Chassis Ground
2 AES 1/2 - L/R
3 AES 3/4 + C/LFE
4 Chassis Ground
5 AES 5/6 - LS/RS
6 AES 7/8 + LC/RC
7 Chassis Ground
8 N/C
9 Chassis Ground
10 N/C
11 N/C
12 Chassis Ground
13 N/C
14 AES 1/2 + L/R
15 Chassis Ground
16 AES 3/4 - C/LFE
17 AES 5/6 + LS/RS
18 Chassis Ground
19 AES 7/8 - LC/RC
20 Chassis Ground
21 N/C
22 N/C
23 Chassis Ground
24 N/C
25 N/C
N/C = No connection
DIGITAL AUDIO IN (CH 9 – 16) – DB25F
Pin Description Standard Ch Assignment
1 Chassis Ground
2 AES 9/10 -
3 AES 11/12 +
4 Chassis Ground
5 AES 13/14 -
6 AES 15/16 +
7 Chassis Ground
8 N/C
9 Chassis Ground
10 N/C
11 N/C
12 Chassis Ground
13 N/C
14 AES 9/10 +
15 Chassis Ground
16 AES 11/12 -
17 AES 13/14 +
18 Chassis Ground
19 AES 15/16 -
20 Chassis Ground
21 N/C
22 N/C
23 Chassis Ground
24 N/C
25 N/C
N/C = No connection