Specifications

192 Digital I/O Guide 10
DigiLink Length Specifications
There are five different lengths of DigiLink ca-
bles:
•18
” (0.46m), included with each interface
•12
’ (3.6m), included with each
Pro Tools|HD card
•25
’ (7.62m)
•50
’ (15.25m), the maximum length sup-
ported for 192 kHz sessions (sold sepa-
rately)
• 100
’ (30.5m), the maximum length sup-
ported by 96 kHz sessions (sold separately)
Expansion Port
The Expansion port is used to connect an addi-
tional Pro Tools|HD I/O to the 192 Digital I/O.
This port passes channels 17–32 to the second-
ary, or expansion, I/O. This port is only avail-
able when the 192 Digital I/O is connected to a
Pro Tools|HD card (it is not available when the
192 Digital I/O is connected to the Expansion
Port on another audio interface). See also “Leg-
acy and Expansion Peripheral Port Limitations”
on page 10.
Legacy Port
This port is used to connect MIX-series Digide-
sign audio interfaces to the 192 Digital 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 expanded input and output op-
tions, 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.
For more information, see the
Pro Tools|HD Get-
ting Started Guide
.
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.
Accessory Port
This port is not supported.
Installing and Configuring the
192 Digital I/O for
Pro Tools HD
For complete installation and configuration in-
structions for the 192 Digital I/O, see the
Pro Tools|HD Getting Started Guide.
For more information about DigiLink ca-
bles, refer to Digidesign Web site
(www.digidesign.com).
For more information on using Expansion
or Legacy audio interfaces, see the
Pro Tools|HD Getting Started Guide, and the
Expanded Systems Guide.