User`s guide

ADAT Bridge I/O18
5 Make sure that your MIDI interface is
connected to your computer and other de-
vices.
BRC Settings for Pro Tools-to-ADAT Transfer:
◆ Enable EXT SYNC, then make sure the
BRC external clock/sync source is 48kHz
Input. (To change this setting, press EDIT,
then press EXT SYNC until Clock Source is
displayed in the LED. Use the lower-
case/uppercase increment arrows to scroll
to 48kHz Input. Press EDIT again to exit.)
For highest-quality ADAT-to-Pro Tools
transfers with this setup, the BRC needs to
be the clock and positional master. The ex-
ample that follows shows how Digidesign’s
Universal Slave Driver can be used to
achieve this configuration.
Using a Digidesign Universal Slave
Driver with a BRC
Digidesign’s Universal Slave Driver is a
high-quality, multipurpose synchroniza-
tion peripheral. By adding the USD to your
system, you can transfer from ADAT to
Pro Tools or Pro Tools to ADAT with near
sample accuracy, using the BRC as your
transport master.
To integrate a Universal Slave Driver with a
BRC and ADAT Bridge/Pro Tools system:
1 Make the primary connections as de-
scribed earlier in this chapter (optical/light-
pipe, 9-pin ADAT Sync).
2 Make sure your Universal Slave Driver is
connected to the DigiSerial Port, and that
your MIDI interface is properly connected
to your CPU.
3 Connect the BRC as described in the pre-
vious section Sync Setup A, except:
4 Use a BNC cable to connect the USD’s
Slave Clock Out to the Slave Clock In of
your master Pro Tools audio interface.
5 Daisy-chain the Slave Clock signal to all
your audio interfaces as explained in your
Pro Tools System Installation Guide.
6 Use another, short BNC cable to connect
the ADAT Bridge Word Clock Out to the
BRC 48 kHz In. Try to use the shortest BNC
cable possible for word clock connections
to the BRC.
7 Make a connection from the BRC SMPTE
Out port to the LTC In port on the USD.
Make sure to set the USD positional refer-
ence to LTC, and its clock reference to In-
ternal.
☞ For software configuration and operational
instructions, see
Chapter 3: Using Your Sys-
tem
, and “Setup A: Synchronizing Pro Tools
and ADAT with a BRC” on page 38.
Connecting a USD and BRC to an ADAT Bridge
optional Y cable
(available separately)
to primary Pro Tools
audio card port "A"
to “Computer A” port
to port "B"
to “Computer B” port
optical cables
Alesis 9-pin sync cable
optical cables
ADAT 1
ADAT 2
50-pin
interface cables
ADAT Bridge
MTC OUT
MAC SERIAL
85-264VAC, 47-63HZ, 115 W
SUPER CLOCK (256X)
PC SERIAL
BI-PHASE / TACH / GPI
VIDEO REF
9-PIN OUT
9-PIN IN / ACC
WORD CLOCK
VIDEO
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IN
OUT
IN
OUT
IN
OUT
to DigiSerial port
Slave Clock In
USD Slave Clock Out
ADAT BRC
MIDI IN MIDI OUT
REMOTE OUT
TO ADAT
to BRC 48 kHz In
Word Clock Out
SlaveClock Out
SMPTE Out
LTC In
to ADAT Sync In