4 “indirect” word sync, 3 - connections – Tascam DA-78HR User Manual

Page 19

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3 - Connections

TASCAM DA-78HR

19

apart from the audio connections (either digital or
analog).

If more than one DTRS unit is to be used, the first
unit in the chain must have its Machine ID set to “1”,
(“0” in the case of DA-88s) and subsequent units
must have their IDs set in order with no gaps in the
numbering sequence. Note that the diagram below
does not show any audio connections.

See 8.2, “Machine ID and master/slave settings” for
details of setting the Machine ID using the menu
system

NOTE

The last unit in the chain must be terminated (a
TASCAM termination plug must be plugged into the
SYNC OUT of the last machine in the chain. Once
again, only use TASCAM cables for connection of
equipment to and from the DA-78HR.

3.3.4 “Indirect” word sync

As mentioned earlier, there is usually no need to use
a word clock when connecting DTRS units together.
There is, however, an occasion when it is necessary
to carry external word sync between DTRS units.

This is when a slave DTRS unit is recording digitally
from another digital audio device:

Though the slave will receive its word clock from the
master unit, the master itself must receive its word
clock from the other digital audio device.

In this case, the master unit will have its clock source
set to

WORD

, and the slave will receive its clock

from the master unit through the

SYNC IN

.

Machine ID 1

(master)

Machine ID 2

(sl ave 1)

Machi ne ID 3

(slave 2)

Termination

plug

PW-88S

PW-88S

Machin e ID 1
(m aster, bu t
CLOCK se t to
WORD)

Mach ine ID 2

(slave 1)

Termin atio n

plu g

PW- 88S

IF -88SD

TDIF -1 d igita l

aud io

Dig ital SDIF- 2

d evice

SDIF -2

digital aud io

Word clock sig nal

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