Specifications

Chapter 3: Installation Overview 19
Digital Format Settings and
Sample Rate Conversion
To configure digital formats and sample rate
conversion:
1 Click on the Digital tab and select Input For-
mat (AES/EBU, ADAT, or TDIF).
2 Enable real-time Sample Rate Conversion by
selecting channel pairs (1–2, 3–4, 5–6, 7–8) in
the SR Conversion box on the Digital tab.
To configure additional interfaces:
■ Repeat the above steps for additional HD-se-
ries I/O in the Peripherals list. To configure the
Main tab of a secondary HD peripheral attached
to a primary HD I/O, you must first choose the
I/O in the Peripherals list.
The following example shows how to configure an
HD system with one 192 I/O and one 96 I/O in the
Hardware Setup dialog:
1 From the Peripherals list, choose the 192 I/O
(which should be your primary I/O). By default,
the Main tab will be selected, and options and
controls for the selected I/O will be available.
The expansion interface connected to the pri-
mary I/O will appear below it in the Peripherals
column.
2 In the Main page, ensure that Expansion I/O is
selected under Port Settings.This is the default.
3 From the Peripherals list, select your second-
ary I/O (in this case, the 96 I/O).
4 Configure the Main page and other settings
and options for the secondary peripheral.
Legacy I/O Setup
Repeat the above steps for any Legacy I/Os (such
as 888|24 I/O) connected to the first I/O, then
second, and so on. Before you can configure a
Legacy I/O, however, it must first be connected
and initialized in Hardware Setup.
To connect and initialize Legacy I/Os:
1 Make sure the entire HD system is powered
down before connecting your Legacy I/O.
2 Connect the slave clock cable that came with
your MIX-series peripheral to the Ext. Clock
Output of the HD I/O and the Slave Clock In
port on the back of your MIX-series peripheral.
3 Connect your Legacy I/O with its MIX-series
cable to the Legacy port on the HD peripheral.
4 Power up your system and launch Pro Tools.
5 Before you turn on and configure your Legacy
I/O, turn down the volume on your monitoring
system. Very loud digital noise may be emitted
before the Legacy I/O is initialized.
At session sample rates above 48 kHz, sam-
ple rate conversion for the TDIF and Optical
(ADAT) inputs on the Digital I/O card is
automatically enabled on all eight inputs of
the selected format.
Hardware Setup dialog with Digital tab selected