Focusrite ISA 828 Mode D'emploi page 11

In single-wire mode, switch out, the AES channels 1-8 can be transmitted at sample rates up to 192kHz using only 8 AES
connections. Therefore, channels 1-8 are always available in AES format, regardless of the S/PDIF switch setting.
ADC Card DB25 Pin Out Configurations
Jumpers disabled
ProTools™ Compatible
Pin No.
(default) ProTools™
Compatible 44.1 - 96kHz
1 NC
2 GND
3 NC
4 NC
5 GND
6 NC
7 AES 7/8+
8 GND
9 AES 5/6-
10 AES 3/4+
11 GND
12 AES 1/2-
13 NC
14 NC
15 NC
16 GND
17 NC
18 NC
19 GND
20 AES 7/8-
21 AES 5/6+
22 GND
23 AES 3/4-
24 AES 1/2+
25 GND
24-bit/192kHz ADAT™ interface operation
The card provides digital outputs for all eight ISA 828 channels, which operate over the sample frequency ranges
44.1-192kHz. The card features two ADAT™-type 'lightpipe' output connectors. For speeds up to 48kHz, both connectors
transmit all 8 channels simultaneously. However, ADAT™-type connectors are bandwidth-limited at sample rates
88.2kHz and 96kHz - each audio channel uses two ADAT™ digital channels to accommodate the increased quantity
of data (SMUXII). At sample rates 176.4kHz and 192kHz, each audio channel uses four ADAT™ digital channels to
accommodate the increased quantity of data (SMUXIV).
The ADAT™ output connectors operate as follows:
44.1/48kHz sample rates:
Connector 1 = channels 1 to 8 in parallel
Connector 2 = channels 1 to 8 in parallel (identical to connector 1)
88.2/96kHz sample rates:
Connector 1 = channels 1 to 4
Connector 2 = channels 5 to 8
Jumpers disabled
Jumpers enabled Single
Wire Mode 44.1 - 192kHz
Dual Wire Mode
88.2 - 192kHz
NC AES 7/8+
GND GND
NC AES 5/6-
NC AES 3/4+
GND GND
NC AES 1/2-
AES 4+ AES 7/8+
GND GND
AES 3- AES 5/6-
AES 2+ AES 3/4+
GND GND
AES 1- AES 1/2-
NC NC
NC AES 7/8-
NC AES 5/6+
GND GND
NC AES 3/4-
NC AES 1/2+
GND GND
AES 4- AES 7/8-
AES 3+ AES 5/6+
GND GND
AES 2- AES 3/4-
AES 1+ AES 1/2+
GND GND
Jumpers enabled +
Jumpers enabled + S/PDIF
Dual Wire Mode
Switch In - Single Wire
88.2 - 192kHz
Mode 44.1 - 192kHz
AES 7/8+ AES 8+
GND GND
AES 5/6- AES 7-
AES 3/4+ AES 6+
GND GND
AES 1/2- AES 5-
SPDIF 7/8+ AES 4+
GND GND
SPDIF 5/6+ AES 3-
SPDIF 3/4+ AES 2+
GND GND
SPDIF 1/2- AES 1-
NC NC
AES 7/8- AES 8-
AES 5/6+ AES 7+
GND GND
AES 3/4- AES 6-
AES 1/2+ AES 5+
GND GND
SPDIF 7/8- AES 4-
SPDIF 5/6+ AES 3+
GND GND
SPDIF 3/4- AES 2-
SPDIF 1/2+ AES 1+
GND GND
11
Jumpers enabled + S/PDIF
Switch In + Dual Wire
Mode 88.2 - 192kHz
AES 4+
GND
AES 3-
AES 2+
GND
AES 1-
SPDIF 7/8+
GND
SPDIF 5/6-
SPDIF 3/4+
GND
SPDIF 1/2-
NC
AES 4-
AES 3+
GND
AES 2-
AES 1+
GND
SPDIF 7/8-
SPDIF 5/6+
GND
SPDIF 3/4-
SPDIF 1/2+
GND