Specifications

Chapter 2: 96 I/O Hardware Overview 7
Primary Port
The Primary Port is where the 96 I/O is con-
nected to a Pro Tools|HD card using a DigiLink
cable. The Primary Port on the 96 I/O can also
be connected to an available Expansion Port on
another Pro Tools|HD audio interface used in
the system.
The Primary Port sends and receives 32 I/O
channels to and from the Pro Tools|HD cards (or
interface). Channels 17–32 (if active) are passed
through to the Expansion port or the Legacy
port.
Expansion Port and Legacy Port
Expansion Port
The Expansion Port is used to connect an addi-
tional Pro Tools|HD I/O to the 96 I/O, such as a
96i I/O. This port passes channels 17–32 to the
secondary, or expansion, I/O. This port is only
available when the 96 I/O is connected to a
Pro Tools|HD card (it is not available when the
96 I/O is connected to the Expansion Port on
another audio interface). See also “Legacy and
Expansion Peripheral Port Limitations” on
page 7.
Legacy Port
The Legacy Port is used to connect Digidesign-
approved Pro Tools|24 MIX-series Digidesign
audio interfaces to 96 I/O. You can connect two
eight-channel interfaces (such as the 888|24 or
882|20) or a single sixteen-channel interface
(1622 I/O or 24-bit ADAT Bridge I/O) for ex-
panded input and output options, using their
original cables.
When the Legacy Port has been activated from
within Pro Tools, your MIX-series I/O will ap-
pear as channels 17–32 in the Pro Tools mixer.
Legacy and Expansion Peripheral Port
Limitations
Because both the Legacy Port and the Expansion
Port use channels 17–32, you can only use one
at a time. The Legacy port is not available in any
session in which the sample rate is set for higher
than 48 kHz.
For more information, see the
Pro Tools|HD Get-
ting Started Guide
.
Accessory Port
This port is not supported.
For more information on using Expansion
or Legacy audio interfaces, see the
Pro Tools|HD Getting Started Guide, and the
Expanded Systems Guide.