User`s guide
ADAT Bridge I/O50
5 Select Store Current Program in the Stu-
dio 64XTC menu to save the settings.
In Pro Tools:
6 In the Peripherals/Synchronization win-
dow select “Generic Device” in Synchroni-
zation and “Studio 64 XTC” for Port. 
7 At the top of the Peripherals dialog, click 
the Machine Control button to open the 
Machine Control Peripherals window. 
There, enable Machine Control (at the bot-
tom of the window) and for “Send to” se-
lect ADAT (this is the device/port you just 
defined in OMS Setups) and set its ID to 
127.
8 Click OK to close the Peripherals dialog. 
9 Once configured in this way, the 64XTC 
will receive transport commands from 
Pro Tools via MMC and send those com-
mands to the ADAT via OMS and the 
64XTC. The 64XTC then converts that into 
ADAT Sync, which it sends to the ADAT via 
the 9-pin connection. The 64 XTC is pro-
viding the master clock reference to 
Pro Tools via 256x (Slave Clock) connec-
tion as described in “Setup E: Synchroniz-
ing Pro Tools and ADAT using an 
Opcode Studio 64XTC” on page 22. 
Using the ADAT Bridge I/O 
in Stand-Alone Mode
In addition to its role as a bridge between 
Pro Tools and ADAT, the ADAT Bridge I/O 
can also be used on its own as a stand-alone 
S/PDIF or AES/EBU-to-ADAT-optical con-
verter. This capability allows you to digi-
tally transfer audio from DAT or a digital 
I/O-equipped CD player or digital mixing 
console to ADAT without having to power 
on your computer or launch Pro Tools. 
Audio received over the ADAT Bridge I/O’s 
digital ports can be monitored with 20-bit 
fidelity through its analog outputs. These 
outputs default to -10 dBV operating levels 
when the ADAT Bridge I/O is used in stand-
alone mode. 
To use the ADAT Bridge I/O in stand-alone 
mode:
1 Make sure that your computer is off.
2 Connect the digital audio source (the 
DAT or digital I/O-equipped CD player) to 
the ADAT Bridge I/O.
3 Turn on the digital audio source (the DAT 
or digital I/O-equipped CD player).
4 Turn on the ADAT Bridge I/O.
5 The ADAT Bridge I/O will scan both its 
S/PDIF and AES/EBU ports for word clock. 
Once word clock lock has been achieved, 
the ADAT Bridge I/O will switch to digital 
sync mode and automatically match its 
sample rate to the incoming data. (If the in-
coming word clock is 48 kHz, the 48 kHz 
sample rate LED will remain lit. If the in-
coming word clock is 44.1 kHz, the 48 kHz 
sample rate LED will flash.) Accordingly, 
digital output sent via the ADAT Bridge 
The Studio 64XTC Edit Programs window










