Teac WR-DA7 - Manual (Page 19)

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3.3 Example of systems with Two WR-DA7 in tandem with 4 ADATs and BRC
This is a 32-track digital recording system utilizing two WR-DA7’s connected in tandem along with
four ADAT units a BRC and ADAT Sync cable connections. The four ADAT units can be controlled
from the BRC. It is also possible to perform recording and playback synchronized to timecode
(MTC or SMPTE) generated from the ADAT through the MIDI interface of the BRC, and also con-
trol ADAT operation via MMC from the WR-DA7 is possible.
Method of connection
With the consoles turned OFF, insert the option cards of WR-ADAT in Slots 1 and 2 and install the
WR-TNDM in Slots 3 of the two WR-DA7 units and firmly fasten them to the back panel using the
screws supplied.
Set the switch on the front of WR-TNDM card to MASTER for the WR-DA7 that is to being used as a
master unit. Set switch on the card to SLAVE of the WR-DA7 being used as a slave unit.
Make the connections between the mixers using the recommended cables for proper tandem con-
nection. (Part No. DA/DB-DB: Available in the USA))
For serial or MIDI communications between the two WR-DA7 units, connect the master unit of the
WR-DA7 by selecting the TO PC (for serial) or the MIDI port of the slave unit using either the spec-
ified serial (Macintosh Printer Cable) or MIDI cables.
For wordclock communication, make the connections between the WORD OUT of the BRC
(48kHz) and WCK IN of the WR-DA7 on the master unit, and connect between the WCK OUT of
the master unit to the WR-DA7 and WCK IN of the slave unit using BNC cables (Part No./BNC:
Available in the USA).
Select he master mixer’s termination to 75 ohm OFF and set the slave unit to 75 ohm ON.
Make the connections between the BRC and ADAT and between the ADAT units using the ADAT
SYNC cables, in the order off the ADAT’s to be used from SYNC OUT to SYNC IN.
Connect the WR-ADAT card from the WR-DA7 to the DIGITAL IN/OUT terminal of the ADAT using
an optical cable (Part No. DA/TOS: Available in the USA) and press the DIGITAL IN switches on
each ADAT to select the digital-input mode.
To make the MIDI connections, establish a loop for the two WR-DA7 units and the BRC, and make
MIDI cable connections from MIDI OUT to MIDI IN. This makes MMC and MTC operative.
(It is possible to receive SMPTE timecode by using the WR-SMPT option card, by making the con-
nections from the SMPTE OUT (Phone Jack) of the BRC to SMPTE IN (XLR: 1,3-GND, 2-HOT) of
the WR-DA7.)
WR-DA7 setting
To use the WR-DA7 as a slave unit, set the SOURCE SELECT in the Input Set Window of the D-I/O
SETUP SECTION to ‘WCK IN’ on the MASTER mixer.
(For synchronization with the ADAT card source, set the SOURCE SELECT to ‘SLOT1’ on the MAS-
TER mixer. Select ‘WCK IN’ on the SLAVE mixer.)
To maintain communications between the two WR-DA7 units, set the PORT SELECT to ‘TO PC’ in
the SERIAL I/O SETUP area of the MIDI SETUP screen for both MASTER and SLAVE consoles. Then
set the baud rates at the same value.