Alesis ADAT-HD24 Reference Manual page 28

Copying between ADATs
If you combine an ADAT HD24 with several
ADATs in a system and aren't using a digital mixer,
you may connect them directly so you can copy the
HD24 to tape and the tapes to the HD24.
To digitally copy between an HD24 and tape-based
ADATs, simply connect the
HD24 machine to the
ADATs, and then the inputs to the outputs, as
shown below. Connect the SYNC OUTS so the
HD24 is last in the chain.
ADAT HD24 Reference Manual
of the
DIGITAL OUTS
of three different
DIGITAL INS
ADAT Optical hookups between two HD24s aren't
usually necessary—it's faster to simply swap
hard drives and make copies in a single
machine.
Don't loop the opticals: Unlike tape-based
ADATs, the HD24 is not designed to be
connected in a digital loop; there is no "digital
through" mode where one HD24 will simply
"pass along" the digital signal at its input. The
digital output of each HD24 simply represents
whatever is on that particular machine.
chapter 2 • connections
27