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Using Legacy Audio Interfaces with
Pro Tools|HD
If you are using a Pro Tools|HD system that in-
cludes a legacy audio interface (an 888|24,
882|20, 1622, or 24-Bit ADAT Bridge audio inter-
face), connect the Clock output of the HD sys-
tem to the Slave Clock Input of the legacy
interface.
To connect a legacy audio interface to an
HD-series system with a SYNC peripheral:
Connect the SYNC peripheral to the HD-series
1
system with Loop Sync as described in the previ-
ous steps.
Using a BNC cable, connect the Ext Clock Out
2
of your primary HD-series interface to the Slave
Clock In of your first legacy interface.
INTERNALLY
IN
TERMINATED
964530300294856
L
T
SERIAL NUMBER
C
OUT
I
N
BI-PHASE / TACH / GPI / PILOT
VIDEO REF
HOST SERIAL
VIDEO
MTC OUT
7
5
3
1
7
5
3
1
ANALOG OUTPUT
ANALOG INPUT
8
6
4
2
8
6
4
2
Clock for SYNC I/O, a 96 I/O, and an 888|24 I/O
If you are connecting multiple legacy inter-
3
faces, daisy-chain their Slave Clock connections
by connecting the Slave Clock Out of the first
interface to the Slave Clock In of the next
interface.
See the HD Setup Guide for external clock
configuration instructions.
AC 100-240V, 50-60HZ, .5A 30W
L
A
IN
IN
A
T
E
E
C
S
S
9-PIN OUT 1
O
O
I
OUT
OUT
U
U
N
T
T
WORD CLOCK (1x,256x)
9-PIN OUT 2
LOOP SYNC
Computer 1
Computer 2
5/6
1/2
5/6
1/2
AES/EBU OUTPUT
AES/EBU INPUT
7/8
3/4
7/8
3/4
8 CH Mode
2 x 4 CH Mode
S/PDIF
S/PDIF
SLAVE CLOCK
SLAVE CLOCK
IN
OUT
IN
OUT
MachineControl
On MachineControl-enabled Pro Tools systems,
SYNC peripherals support limited Serial Deck
Control only.
Serial Deck Control Mode
(Non-Linear Decks Only)
A limited degree of Serial Deck Control mode is
available through a connection to the 9-pin
ports on the SYNC peripheral. For full Serial
Deck Control, a direct serial connection to the
host Pro Tools computer is required.
To connect an external deck to a SYNC peripheral:
Connect a standard 9-pin cable from one of
the 9-pin Out ports on the SYNC peripheral to
the 9-pin connector of the external deck.
As many as two decks can be connected to the
two 9-pin Out ports on the SYNC peripheral.
You can control one deck at a time, switching
between them from within Pro Tools. These
ports on the SYNC peripheral support all Machi-
neControl modes except 9-Pin Remote (Deck
Emulation) mode.
Due to performance limitations, this
configuration should be used primarily
with non-linear decks.
9-Pin Remote Deck Emulation
Mode
9-Pin Remote Deck Emulation mode requires a
direct serial connection to the host computer.
For more information on MachineControl
connections and operation, see the
MachineControl Guide.
Chapter 2: Installation and Configuration
9
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