Specifications
192 Digital I/O Guide
10
3
Connect the DigiLink expansion cable that
came with your I/O from the Expansion port on
the 192 Digital I/O to the Primary port on the
96 I/O.
If the existing system contains a single 192 I/O or
192 Digital I/O:
Because they both support the same sample
rates, you can connect multiple 192 Digital I/Os
or 192 I/Os in any order. Connect the first HD
Process card to the first I/O’s Primary port, and
connect that I/O’s Expansion port to the second
I/O’s Primary Port.
If you already have two 192 Digital I/Os or
192 I/Os connected to your HD Core, connect
the new 192 Digital I/O directly to the first HD
Process card (12
'
DigiLink cable sold separately).
Connect the DigiLink cable from the Primary
port of the new 192 Digital I/O to the DigiLink
port on the HD Process card.
Loop Sync Connections
with BNC Cable
Loop Sync is a discrete word clock signal used to
keep multiple HD I/Os synchronized with each
other. Only one peripheral at a time in the en-
tire system can serve as Loop Master; by default
this will initially be the HD I/O connected di-
rectly to the HD Core card.
You can select any connected HD I/O to be the
Loop Master by choosing a clock source on that
particular HD I/O. Once you set this, all other
peripherals in the chain will automatically be
set for Loop Slave and light the LOOP LED.
Because you can select any HD I/O in the chain
to be Loop Master, you can use the digital or Ex-
ternal Clock ports for synchronization on any
peripherals.
To connect Loop Sync between two interfaces:
1
Connect the BNC cable from the Loop Sync
Out of the primary HD I/O to the Loop Sync In
of your 192 Digital I/O.
2
Connect the Loop Sync Out from the new
192 Digital I/O to the Loop Sync In of the pri-
mary HD I/O.
To connect your 192 Digital I/O into a Loop Sync
chain:
■
Connect the new 192 Digital I/O Loop Sync
In and Out ports to properly place the new in-
terface in the Loop Sync chain. See the
Getting
Started with HD
Guide
for more information.
Checking Installation
This section explains how to check that your in-
stallation was successful.
To check installation using DigiTest:
1
Start up your computer (see “Powering Up
Your System” on page 11).
2
Launch DigiTest 5.3.1 or higher.
3
Ensure that all HD cards and HD I/Os are iden-
tified properly. If not, see the
Getting Started with
HD Guide
.
4
When finished, quit DigiTest and restart.
The 96 I/O does not support 192 kHz, and
you will not be able to run a session at
192 kHz unless a 192 Digital I/O or a
192 I/O is the first interface connected to
the HD Core card.