Specifications

Chapter 2: Expanded Pro Tools|HD Systems
8
Expanded Systems Guide
To make DigiLink connections to audio interfaces:
1 Connect the primary audio interface to the HD Core card with the provided 12-foot DigiLink cable.
2 Do one of the following:
• Connect a secondary Pro Tools|HD audio interface to the Expansion port on the primary audio interface
using the 18-inch DigiLink cable (included with the audio interface). See Figure 2 on page 7.
– or –
• Connect a secondary Pro Tools|HD interface to the DigiLink on the next card (HD Accel or HD Process).
3 Connect additional Pro Tools|HD audio interfaces to subsequent Pro Tools|HD audio interfaces or cards. See
Figure 3 on page 7.
4 If connecting a Legacy audio interface (such as the 888|24 I/O), refer to “Connecting Legacy Audio Inter-
faces” on page 8.
Connecting Loop Sync
To connect Loop Sync:
1 Connect the Loop Sync Out of the primary interface to the Loop Sync In of the second interface with the
provided Loop Sync cables.
2 Connect the Loop Sync Out of the second interface to the Loop Sync In of the next interface and so forth.
3 Connect the Loop Sync Out of the last interface to the Loop Sync In of the primary interface.
Connecting Legacy Audio Interfaces
Each 192 I/O, 192 Digital I/O, and 96 I/O™ can support 16 channels of audio to and from legacy audio inter-
faces, or Legacy I/Os. These include the 888|24 I/O, 882|20 I/O, 1622 I/O™, 24-bit ADAT Bridge I/O™, and the
original ADAT Bridge I/O. The 888 I/O and 882 I/O interfaces are not supported with Pro Tools HD. (The 96i
I/O does not provide a Legacy port.)
The Legacy Peripheral port functions like the Expansion port.
A single Legacy I/O can be connected to the Legacy Peripheral port using any Pro Tools MIX peripheral cable.
Two Legacy I/Os can be connected to a single Legacy Peripheral port using a “Y” cable (16-channel Peripheral
Cable Adapter).
The maximum number of Legacy I/Os that can be connected to a Pro Tools|HD system is eight; requiring four
Pro Tools|HD audio interfaces and four 16-channel Peripheral Cable Adapters.
When using a SYNC peripheral, the SYNC peripheral is considered the primary interface of the Loop Sync
connection. For more information, refer to the SYNC peripheral guide.
The Legacy port and the Expansion port both use Group B: Channels 17–32. you must choose between
the Legacy port and the Expansion port in the Pro Tools Hardware Setup dialog.
The Legacy port is not available in Pro Tools sessions at sample rates greater than 48 kHz.