Mackie TT24, Quick Start Manual

Page: 58 / 130

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TT24 DIGITAL LIVE CONSOLE
TT24 DIGIT
AL LIVE C
ONS
OLE
4.1.11 GROUP/MATRIX OUT
By default, these eight male XLR connectors provide
balanced, line-level outputs for Groups 1–8. However,
when the
MATRIX mixer is active, each output can
provide a separate mix of virtually any input source. See
Matrix Mix on page 44 for details.
INSERT INSERT INSERT INSERT INSERT INSERT INSERT
INSERT INSERT
1 2 3 4 5 6 7 8
GROUP/MATRIX OUT
Group/Matrix Outputs
Figure 4-3 Group/Matrix connectors
4.2 Digital I/O
This section discusses the rear panel digital I/O
(Figure 4-4).
4.2.1 ADAT DIGITAL I/O
Six built-in Toslink connectors (INPUTS A–C, OUT-
PUTS A–C) provide 24 channels of 24-bit digital, ADAT
optical lightpipe I/O at 44.1/48 kHz sample rates. At
88.2/96 kHz, the signal is multiplexed (SMUX format),
which reduces the number of I/O channels to 12.
The optional ADAT I/O Expansion Card provides ad-
ditional Toslink connectors (Expansion INPUTS A–C,
Expansion OUTPUTS A–C) for channels 13–24 when
operating at 88.2/96 kHz. The following table summariz-
es the channels allocated under each sample rate, with
and without the expansion card.
44.1/48 kHz 88.2/96 kHz
INPUT A 1–8 1–4
INPUT B
9–16 5–8
INPUT C
17–24 9–12
OUTPUT A
1–8 1–4
OUTPUT B
9–16 5–8
OUTPUT C
17–24 9–12
Expansion INPUT A
N/A 13–16
Expansion INPUT B
N/A 17–20
Expansion INPUT C
N/A 21–24
Expansion OUTPUT A
N/A 13–16
Expansion OUTPUT B
N/A 17–20
Expansion OUTPUT C N/A 21–24
Table 4-1 ADAT Digital I/O Channels at 44.1/48 and
88.2 /96 kHz Sample Rates
OUT
OUT
IN
IN
OUT IN
A B C A B C
AES/EBU
MIDI ADAT DIGITAL I/O USB
POWER
SPDIF
EXPANSION
CARD A
CARD B
OUT
IN
WORD
CLOCK
IN OUT
Power
On/Off
MIDI
In/Out Word Clock
In/Out ADAT Optical
I/O connectors
Expansion
card slots
AES/EBU
In/Out
S/PDIF
In/Out
AC Power
Inlet
K K
~100-240VAC
50-60Hz 300W
FUSE: 6A/250V
USB
Figure 4-4 Digital I/O and expansion card slots