Chapter 2: HD I/O Overview
11
DigiLink Mini Cables and Adapters
Avid provides various cables and adapters to
connect Avid HD audio interfaces to HD Native
and Pro Tools|HD cards.
DigiLink Mini Cables
Use DigiLink Mini cables to connect HD I/O to
an HD Native card, as well as to other Avid HD
audio interfaces (such as another HD I/O or HD
OMNI).
There are five different lengths of DigiLink Mini
cables:
• 18
”
(0.46m)
• 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)
DigiLink Mini Adapters
Use a DigiLink cable with a DigiLink Mini
adapter to connect HD I/O to a Pro Tools|HD
card. You can also use a DigiLink Mini adapter
to connect HD I/O to legacy Pro Tools|HD audio
interfaces (such as 192 I/O).
There are two types of DigiLink Mini adapters:
• 12” DigiLink Mini female to DigiLink male
• 12
”
DigiLink Mini male to DigiLink female
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.
LOOP SYNC In and Out
Loop Sync is a dedicated clock loop for synchro-
nizing multiple Pro Tools|HD peripherals to-
gether (multiple audio interfaces, or a SYNC HD
and one or more audio interfaces). Loop Sync
technology lets you synchronize to any digital
peripheral connected to any of the Pro Tools|HD
audio interfaces in your Pro Tools system. Loop
Sync uses a word clock signal based on sample
rates of either 44.1 kHz or 48 kHz. As sample
rate increases in the system, Loop Sync contin-
ues to operate at a base rate of 44.1 kHz or
48 kHz, depending upon the higher rate.
For more information about DigiLink Mini
cables and adapters, 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.
Summary of Contents for HD I/O
Page 1: ...HD I O Guide...
Page 22: ...HD I O Guide 18...
Page 38: ...HD I O Guide 34...
Page 42: ...HD I O Guide 38...
Page 50: ...HD I O Guide 46...
Page 51: ......
