Setup guide
003 Family Setup Guide88
To record an alternate sound source directly into 
Pro Tools:
1 Connect the outputs of the external device to 
the left and right Aux In connectors on the back 
panel of the 003 family interface. 
2 Route the signal directly to Inputs 7–8 in 
Pro Tools by pressing the Aux In to 7–8 switch 
(located on the top panel of 003, and on the 
front panel of 003 Rack and the 003 Rack+) so 
that it is enabled (lit). 
When the Aux In to 7–8 switch is enabled, In-
puts 7 and 8 on the back panel are inactive. Also, 
because the signal can be monitored from 
Pro Tools, it no longer passes directly to the 
Monitor Outputs. 
Recording from a Digital 
Device
If you are recording from an optical or S/PDIF 
device, you will need to select a Clock Source. In 
most cases, you will synchronize the Pro Tools 
clock to the external device. 
If you are using an optical device for recording, 
you also need to set the Optical Format.
To configure Pro Tools LE for a digital source:
1 Connect an ADAT or Optical S/PDIF format 
device to the Optical In connector, or an RCA 
S/PDIF format device to the S/PDIF In connector 
on the back of the 003 family interface.
2 Choose Setup > Hardware.
3 Under Optical Format, do one of the follow-
ing:
• If the external digital device is a S/PDIF de-
vice and connected to the S/PDIF RCA 
jacks, select ADAT (if the selected sample 
rate is 44.1 or 48 kHz) or None (if the se-
lected sample rate is 88.2 or 96 kHz). The 
RCA jack is only active when Optical 
S/PDIF is not enabled.
• If the external digital device is a S/PDIF de-
vice and connected to the Optical ports, se-
lect S/PDIF.
• If the external digital device is an ADAT 
Optical compatible device, select ADAT.
4 From the Clock Source pop-up menu, do one 
of the following:
• If you are synchronizing the Pro Tools 
clock to the external device, select ADAT, 
RCA (S/PDIF), or Optical (S/PDIF), depending 
on where you connected your digital de-
vice.
– or –
• Select Internal if you are synchronizing the 
external device to the 003 family interface. 
You can use only one pair of S/PDIF inputs 
(either RCA or Optical) at a time.
Your digital input device must be connected 
and powered on. If your input device is not 
powered on, leave the Clock Source set to In-
ternal.
You can use the I/O Setup dialog (Setup > 
I/O) to label the inputs and outputs you are 
using in Pro Tools LE and identify them as 
inserts or sends when working in a session. 
See the Pro Tools Reference Guide for de-
tails.










