MOTU Traveler-mk3 User Manual page 11

All quarter-inch analog inputs can accept either a
balanced or unbalanced plug. They are equipped
with a -10 dBV / +4 dBu reference level switch, plus
up to +12 dB of digital trim boost.
The quarter-inch outputs are referenced to a +4
dBu line level output signal.
Precision Digital Trim™
The Traveler-mk3's mic/guitar inputs are equipped
with digitally controlled analog trims that allow
adjustments in 1 dB increments. The mic/guitar
input trims can be adjusted using front-panel
digital rotary encoders that provide feedback in the
front panel LCD with up to 53 dB of boost. All
analog inputs, including four rear-panel TRS
analog inputs, can be trimmed using the front
panel LCD or using the Traveler-mk3's included
CueMix FX control software for Mac and
Windows. This allows you to fine-tune trim
settings for synths, effects modules and a wide
variety of analog inputs for optimum levels.
Different trim configurations can then be saved as
files on disk for instant recall.
Optical
The two optical banks provide 16 channels of
ADAT optical at 44.1 or 48 kHz, 8 channels of
S/MUX optical I/O at 96 kHz or two banks of
stereo TOSLink at rates up to 96 kHz. The banks
operate independently, including input and output,
allowing you to mix and match any optical formats.
For example, you could receive 4 channels of
96 kHz S/MUX input on Bank A while at the same
time sending 96 kHz stereo optical S/PDIF
("TOSLink") from the Bank A output.
AES/EBU
The Traveler rear panel provides a standard
AES/EBU digital input and output that supports
digital I/O at 44.1, 48, 88.2 and 96 kHz. The
AES/EBU jacks are disabled at the 4x sample rates
(176.4 and 192kHz).
A B O U T T H E T R A V E L E R - M K 3
S/PDIF
The Traveler-mk3 rear panel provides S/PDIF
input and output in two different formats: RCA
"coax" and optical "TOSLink". The RCA jacks are
dedicated to the S/PDIF format. The TOSLink
jacks can be used either for either TOSLink or
ADAT optical, as discussed earlier.
Word clock
The Traveler-mk3 provides standard word clock
that can slave to any supported sample rate. In
addition, word clock can resolve to and generate
"high" and "low" sample rates. For example, if the
Traveler-mk3 global sample rate is set to 96 kHz,
the word clock input can resolve to a "low" rate of
48 kHz. Similarly, when the Traveler-mk3 is
operating at 96 kHz, Setup lets you choose a word
clock output rate of 48 kHz.
1394 FireWire
The two 1394 FireWire jacks accept a standard
IEEE 1394 FireWire cable to connect the
Traveler-mk3 to a FireWire-equipped Mac or
Windows computer. The second jack can be used
to daisy chain multiple interfaces — up to four
MOTU FireWire interfaces on a single FireWire
bus. It can also be used to connect other FireWire
devices without the need for a FireWire hub. Keep
in mind, however, that the Traveler-mk3 uses more
FireWire bus bandwidth when one or both optical
banks are enabled, or when it operates at higher
sample rates. These operating configurations will
limit the number of devices you can daisy chain on
a single FireWire bus.
On-board SMPTE synchronization
The Traveler-mk3 can resolve directly to SMPTE
time code via any analog input, without a separate
synchronizer. It can also generate time code via any
analog output. The Traveler-mk3 provides a DSP-
driven phase-lock engine with sophisticated
filtering that provides fast lockup times and sub-
frame accuracy.
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