Setup guide

Pro Tools|HD Setup Guide14
4 Verify the connection. Make sure the FlexCa-
ble ports seat flat against the sockets on the
cards, and are firmly attached.
5 For systems with more than two cards, con-
nect each additional card to its preceding card.
Use FlexCables to connect card pairs together, as
described above, until all cards are connected.
(Each HD Accel or HD Process card is packaged
with a FlexCable.)
6 Close the computer case.
Connecting Audio Interfaces
Each Pro Tools|HD audio interface supplies up
to 16 channels of input and output to your sys-
tem. Audio interfaces are connected directly to
Pro Tools|HD cards, or through the Expansion
ports on other Pro Tools|HD interfaces.
Each Pro Tools|HD card supports up to 32 chan-
nels. To get a full 32 channels of I/O from one
card, you can connect, or daisy-chain, a second
16-channel Pro Tools|HD I/O to the first
Pro Tools|HD I/O that is connected directly to
the Pro Tools|HD card.
Pro Tools|HD supports up to a maximum of ten
192 I/Os, 192 Digital I/Os, or 96 I/Os. Up to five
96i I/Os can be used simultaneously.
For examples of connecting multiple I/Os, see
Figure 1 and Figure 2 on page 15.
Legacy I/Os can also be connected to
Pro Tools|HD interfaces (see “Connecting Leg-
acy I/Os” on page 16).
To connect Pro Tools|HD audio interfaces:
1 If you are using a single 192 I/O,
192 Digital I/O, 96 I/O, or 96i I/O, connect its
Primary Port to the HD Core (for PCI) card with
the DigiLink cable provided with the card. You
must attach at least one 192 I/O,
192 Digital I/O, 96 I/O, or 96i I/O to your sys-
tem in order for Pro Tools to launch.
2 Connect additional Pro Tools|HD audio inter-
faces to subsequent Digidesign audio cards, or
daisy-chain the interfaces (by connecting the
Primary Port of the secondary interface to the
Expansion Port of the primary interface).
Side view of two HD cards connected with TDM
FlexCable
PORT B
PORT B
PORT A
PORT A
PORT B
PORT A
PORT A
PORT B
Pro Tools|HD audio interfaces need room at
their sides to maintain proper air flow for
cooling. Do not block the sides of the unit or
disconnect the internal fan. If the units are
rack-mounted in a case, remove the case
lids or doors before operating the system.
Failure to do so can result in the units over-
heating very quickly, which can perma-
nently damage sensitive components.
If you have at least one 192 I/O or
192 Digital I/O in your system configura-
tion, it must be connected to the HD Core
(for PCI) card as the primary interface.