Specifications

Pro Tools|HD Getting Started Guide60
192 I/O
The 192 I/O features two DB-25 breakout con-
nectors for two sets of eight inputs each, at
+4 dBu and –10 dBV respectively.
There are no –10 dBV outputs, however; analog
outputs break out from a single DB-25 output at
+4 dBu operating levels.
The 192 I/O requires a custom DB-25 snake.
Digidesign sells several different DigiSnake DB-
25 cables for this purpose. Contact your dealer
or Digidesign for more information.
192 Digital I/O
The 192 Digital I/O features two DB-25 breakout
connectors for two sets of eight AES/EBU or
TDIF inputs and outputs, along with a pair of
ADAT Optical ports.
The 192 Digital I/O requires a custom DB-25
snake. Digidesign sells several different DigiS-
nake (DB-25) cables for this purpose. Contact
your dealer or Digidesign for more information.
96 I/O
The 96 I/O analog connectors are TRS 1/4-inch
with TIP wired hot (or “+”), RING cold (or “
–”),
and SLEEVE ground. If connecting to unbal-
anced loads, use unbalanced TS cables.
There is one bank of eight inputs (software-swit-
chable between +4 dBu and –10 dBV line levels
on a line-by-line basis).
There is one bank of eight outputs (that use
+4 dBu line levels).
96i I/O
The 96i I/O analog connectors are balanced TRS
1/4-inch with TIP wired hot (or “+”), RING cold
(or “
–”), and SLEEVE ground. If connecting to
unbalanced loads, use unbalanced TS cables.
The 96i I/O provides 16 inputs and two outputs.
Inputs 1–4 feature variable, multi-level input
sensitivity, controllable from within Pro Tools
(from –12 dBV to +4 dBu). Inputs 5–16 provide a
choice of two fixed operating levels (–8 dBV or
+4 dBu).
Outputs 1–2 are selectable between –10 dBV and
+4 dBu.
Connecting Equipment with
Digital Audio Ins and Outs
Each Pro Tools|HD audio interface includes at
least one AES/EBU, S/PDIF, or Optical (ADAT)
digital option. For example, the 192 I/O in-
cludes additional AES/EBU and optical ports, as
well as TDIF, dual-wire AES/EBU at 192 kHz, and
sample rate converters. The 96i I/O provides two
channels of S/PDIF only. (See the documenta-
tion for your audio interface for details.)
The following example provides basic setup
guidelines for connecting Pro Tools to a DAT re-
corder.
To connect your Pro Tools system to a DAT
recorder:
1 Connect the AES/EBU or S/PDIF output on the
enclosure of your Pro Tools|HD audio interface
to the AES/EBU or S/PDIF input of your DAT
deck. By default, this port is assigned to Pro
Tools Output 1–2.
When driving unbalanced lines on the
192 I/O output card, leave the negative “–”
terminals disconnected. Failure to do so will
result in noisy outputs.