User`s guide

ADAT Bridge I/O 10
ADAT Bridge I/O Back Panel
1. Analog Outputs
These are balanced TRS (tip-ring-sleeve)
connectors which carry audio output on
channels 1-2. By routing a Pro Tools output
mix to channels 1-2 you can then monitor
an entire mix via these outputs. The ADAT
Bridge I/O’s analog outputs feature 20-bit
D/A convertors for superior audio quality.
These outputs are software-switchable be-
tween -10 dBV and +4 dBu operation via
the Other Options section of the Pro Tools
Hardware dialog (in the Setups menu).
Output levels default to -10 dBV when the
ADAT Bridge I/O is used in stand-alone
mode (see Chapter 3).
2. Optical In/Out #1
These are fiber optic ports. They are de-
signed to send and receive 8 channels of
digital audio to and from an ADAT’s optical
ports. The Optical #1 port carries data for
Group A, the first eight channels (1-8) of
the ADAT Bridge I/O. Please note that both
the optical inputs and optical outputs must
be connected to your ADAT in order for
your system to work properly.
3. Optical In/Out #2
Similar to “Optical In/Out #1, except the
Optical #2 port carries data for Group B,
the second eight channels (9-16) of the
ADAT Bridge I/O.
4. Computer A
This port is used to make connections be-
tween the Digidesign ADAT Bridge I/O and
a Pro Tools MIX, MIXplus, d24, DSP Farm,
or Disk I/O card installed inside your com-
puter. The Computer A port carries data for
the first eight channels (1-8) of audio be-
tween the ADAT Bridge I/O and Pro Tools.
5. Computer B
Similar to Computer A, except the Com-
puter B port carries data for the second
eight channels (9-16) of audio between the
ADAT Bridge I/O and Pro Tools.
6. AES/EBU In/Out
These are balanced, three conductor, XLR
connectors which accept and output a 24-
bit AES/EBU digital data stream. Output is
continuously active on the AES/EBU jacks,
carrying audio routed to outputs 1-2 in
Pro Tools.
7. S/PDIF In/Out
These are unbalanced, two-conductor,
phono (RCA) jacks which accept and out-
put a 24-bit S/PDIF digital data stream.
Figure 2. ADAT Bridge I/O Back Panel
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