Focusrite ISA 828 - Page 20

Appendix 1
Recording AES Outputs 1-8 to Pro Tools ™ HD at 192kHz
To record all eight channels digitally to Pro Tools™ HD at 192kHz, all eight AES channels need to be enabled on the ISA
828 (default jumper positions shown on Appendix 2) and 2 Digital cards must be fitted in the HD192 interface. A 25-pin to
two 25-pin cable must then be used, with the following pinout:
Pin No. ISA 828 ADC Connector HD 192 Break Out Connector 1 HD 192 Break Out Connector 2
1 AES 8+ NC NC
2 GND GND GND
3 AES 7- NC NC
4 AES 6+ NC NC
5 GND GND GND
6 AES 5- NC NC
7 AES 4+ AES 4+ AES 8+
8 GND GND GND
9 AES 3- AES 3- AES 7-
10 AES 2+ AES 2+ AES 6+
11 GND GND GND
12 AES 1- AES 1- AES 5-
13 NC NC NC
14 AES 8- NC NC
15 AES 7+ NC NC
16 GND GND GND
17 AES 6- NC NC
18 AES 5+ NC NC
19 GND GND GND
20 AES 4- AES 4- AES 8-
21 AES 3+ AES 3+ AES 7+
22 GND GND GND
23 AES 2- AES 2- AES 6-
24 AES 1+ AES 1+ AES 5+
25 GND GND GND
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