Specifications

Chapter 2: HD I/O Overview 11
DigiLink Mini and DigiLink Cables
Use DigiLink cables with a DigiLink to DigiLink
Mini adapter cable to connect HD I/O to a
Pro Tools|HD card, as well as to legacy
Pro Tools|HD audio interfaces (such as 192 I/O).
Use DigiLink Mini cables to connect HD I/O to
other Pro Tools|HD audio interfaces (such as an-
other HD I/O or HD OMNI).
DigiLink Mini Cable Length Specifications
There are six different lengths of DigiLink Mini
cables:
•18” (0.46m), included with HD I/O
•12’ (3.6m) (sold separately)
•25’ (7.62m) (sold separately)
•50’ (15.25m), the maximum length sup-
ported for 176.4 kHz and 192 kHz sessions
(sold separately)
• 100’ (30.5m), the maximum length sup-
ported by 88.2 kHz and 96 kHz sessions
(sold separately)
• 200’ (30.5m), the maximum length sup-
ported by 44.1 kHz and 48 kHz sessions
(sold separately)
DigiLink to DigiLink Mini Adapter Cables
Use DigiLink to DigiLink Mini adapter cables to
connect HD I/O to Pro Tools|HD cards. You can
also use DigiLink to DigiLink Mini adapter ca-
bles to connect older HD peripherals (such as
192 I/O) to the Expansion port of HD I/O.
There are two types of DigiLink to DigiLink Mini
adapter cables:
•12” DigiLink female to DigiLink Mini male,
included with each interface
• 12” DigiLink Mini female to DigiLink male
The DigiLink to DigiLink Mini adapter cables let
you connect your HD I/O to Pro Tools|HD cards
in your computer (Pro Tools|HD cards include a
12’ DigiLink cable for connecting Pro Tools|HD
audio interfaces). They also let you connect leg-
acy Pro Tools|HD audio interfaces (such as the
192 I/O or the 96 I/O) to the expansion port of
HD I/O (legacy Pro Tools|HD audio interfaces
include an 18” DigiLink cable).
Clock and Synchronization Ports
WD CLOCK IN and OUT
The Word Clock I/O ports are standard BNC
connectors that receive and output word clock
signal. These ports can be used to synchronize
HD I/O with any word clock-capable device.
Word Clock In can be configured by selecting it
as the Clock Source in the Hardware Setup dia-
log in Pro Tools. Word Clock Out can also be
configured in the Hardware Setup dialog using
the External Clock Output selector.
For more information about DigiLink Mini
and DigiLink Mini to DigiLink cables, visit
the Avid website (www.avid.com).
Because crucial timing data is passed
through the Loop Sync and Word Clock ports,
you should use high-quality, 75-ohm RG–59
cables for making connections.