DigiDesign Mbox 2 Pro Getting Started Manual page 50

Digital Input and Output
Mbox 2 Pro provides two channels of S/PDIF
digital input and output on the back panel. This
lets you record signals from digital devices into
Pro Tools, and send digital audio from Pro Tools
to other digital devices.
S/PDIF
In
Out
S/PDIF connectors on Mbox 2 Pro
Connecting Digital Devices
To connect Mbox 2 Pro to an external digital
device:
Using RCA (coaxial) cables, connect the
1
Mbox 2 Pro S/PDIF In to the S/PDIF output of
the device.
Connect the Mbox 2 Pro S/PDIF Out to the
2
S/PDIF input of the external device.
Be sure to read the next section for important
3
information.
Using S/PDIF Input
This section describes the steps you must take
once you have finished installing and launching
Pro Tools LE to enable the S/PDIF ports for digi-
tal input.
42 Mbox 2 Pro Getting Started
Refer to this section whenever you plan to use
S/PDIF input on Mbox 2 Pro.
The following requirement only applies to
using S/PDIF input to record or monitor dig-
ital signals through Pro Tools LE and
Mbox 2 Pro.
In order to record or listen to a digital device
connected to the Mbox 2 Pro S/PDIF In connec-
tor, you must do the following to configure the
Pro Tools Clock Source:
To enable the S/PDIF inputs on Mbox 2 Pro:
Make sure your have connected the external
1
digital device to the correct Mbox 2 Pro S/PDIF
connector (In and Out).
Make sure the external device is powered on,
2
that it is set to the correct sample rate, and that
it is configured to provide S/PDIF clock (if rele-
vant to your device).
Launch Pro Tools LE.
3
Choose Hardware > Setup.
4
Click the Clock Source pop-up menu and
5
choose "S/PDIF."
Clock Source
Enabling S/PDIF Input in the Hardware Setup dialog
Once enabled in the Hardware Setup dialog, the
S/PDIF inputs become active and will pass audio
to Mbox 2 Pro.