Cisco D9040 User And Service Manual page 54

Connecting the Audio Inputs,
The pinout for the digital part of the terminal block connector is as follows:
Pin
Number
1 to 12
13
14
15
16
17
18
19
20
21
22
23
24
Note: The digital audio output is always 75-ohm single-ended.
Note: The digital output on pin 16 corresponds settings-wise to the layer II
channels 5&6 and the Dolby Digital channel 3. Likewise the digital output on pin 22
corresponds settings-wise to the layer II channels 7&8 and the Dolby Digital
channel 4.
3-10
Continued
Channel
Numbering
Layer Dolby Type
II Digital
N/A
5 & 6 3 Digital
In
Digital
Out
7 & 8 4 Digital
In
Digital
Out
Installation
AES/EBU
Signal Type
N/A
+ Digital In Signal
-
Shield
Signal Digital
Out
Groun
d
Shield
+ Digital In Signal
-
Shield
Signal Digital
Out
Groun
d
Shield
AES-3id
Signal
Ground
Shield
Signal
Ground
Shield
Ground
Shield
Signal
Ground
Shield
4020024 Rev C