Using The Adat Connection - Focusrite Scarlett 18i20 User Manual

Using the ADAT connection

In .addition .to .the .eight .analogue .inputs, .the .Scarlett .18i20 .has .an .OPTICAL .IN .ADAT .input .port .which .
can .provide .an .additional .eight .audio .inputs .at .44.1/48 .kHz .sample .rate .or .four .at .88.2/96 .kHz. .Note .
that .the .optical .input .is .disabled .when .sample .rates .of .176.4/192 .kHz .are .in .use.
Using .a .separate .8-channel .microphone .preamplifier .equipped .with .an .ADAT .output .– .such .as .the .
Focusrite .OctoPre .MkII .– .provides .a .simple .and .excellent .method .of .expanding .the .Scarlett .18i20's .
input .capability.
Inputs 1 & 2 on front panel
OctoPre MkII
8ch Mic Amp
Computer
Inputs 1 & 2 on front panel
running DAW
and
Focusrite
Control
The .OctoPre .MkII's .ADAT .output .is .connected .to .the .Scarlett .18i20's .OPTICAL IN .port .with .a .single .
TOSLINK . o ptical . c able. . T o . s ynchronise . t he . t wo . d evices . o ver . A DAT, . s et . t he . c lock . s ource . o f . t he . O ctoPre .
MkII .to .Internal .and .that .of .the .Scarlett .18i20 .(via .Focusrite .Control) .to .
word .clock .synchronisation .may .be .achieved .by .connecting .the .Scarlett .18i20's .WORD CLOCK OUT .
to .the .OctoPre .MKII's .WORD CLOCK IN .and .setting .the .OctoPre .MkII .to .use .Word .Clock .as .its .clock
source, .Focusrite .Control .clock .source .should .be .set .to .
TIP: When .interconnecting .two .digital .devices .by .any .method, .always .ensure .that .both .are .set .
to .the .same .sample .rate.
The . additional . inputs . realised . by . use . of . the . ADAT . port . may . be . routed . using . Focusrite . Control . in .
exactly .the .same .manner .as .the .other .inputs. .The .additional .inputs .can .form .part .of .any .musician's .
headphone .mix, .as .required.
If . a . suitable . ADAT . "break-out" . box . is . available, . the . OPTICAL OUT . ADAT . port . may . be . used . in . the .
opposite .manner; .for .example, .additional .outputs .from .the .DAW .may .be .converted .into .the .analogue .
domain . t o . a llow . t he . u se . o f . a n . e xternal . h ardware . m ixing . c onsole . t o . m ix . d own . a . l arge . n umber . o f . D AW .
tracks.
16
Wordclock link Optical ADAT connection (TOSLINK)
Internal
ADAT
. .Alternatively, .stable .
.