MOTU 828x 28x30 Audio Interface with ThunderTechnology - Manual (Page 31)

I N S T A L L I N G T H E 8 2 8 X H A R D W A R E
31
OPERATING THE 828X AS A CONVERTER
As explained earlier in “Using optical I/O to
operate the 828x as a 16-channel expander” on
page 27, the 828x can serve as a multi-channel
analog-to-digital converter when disconnected
from the computer and instead connected to
another device equipped with an ADAT optical
input. For example, you could connect the 828x
optical output to the optical input on another
MOTU audio interface, such as a Traveler, 896mk3
or even another 828x. The 828x then serves as a
multi-channel expander that adds additional mic,
analog TRS and digital inputs to the interface. The
benefit of connecting the 828x in this manner
(instead of as another interface) is that you can
seamlessly integrate the 828x’s inputs into the on-
board no-latency CueMix monitor mixing in the
interface, since the 828x’s inputs are fed into
CueMix via the interface’s optical inputs.
If the device to which you are connecting the 828x
supports 2x optical sample rates (88.2 or 96 kHz),
you can also use both banks of connectors as
discussed in “ADAT optical operation at 88.2 or 96
kHz” on page 27.
Expander
828x
ADAT optical Out
Figure 4-11: Using the 828x as an optical expander. In this example, it is connected to another 828x.
Thunderbolt or
Base
828x
Mac
ADAT optical In