Focusrite Scarlett 18i20 User Manual page 20

At 88 .2 kHz and 96 kHz sample rates:
CH NO . INPUTS
1 Input .1
2 Input .2
3 Input .3
4 Input .4
5 Input .5
6 Input .6
7 Input .7
8 Input .8
9 S/PDIF .1
10 S/PDIF .1
11 ADAT .1
12 ADAT .2
13 ADAT .3
14 ADAT .4
15
16
17
18
19
20
Please .refer .to .the .Focusrite .Control .User .Guide .for .further .details.
20
OUTPUTS
Output .1
Output .2
Output .3
Output .4
Output .5
Output .6
Output .7
Output .8
Output .9
Output .10
S/PDIF .1
S/PDIF .2
ADAT .1
ADAT .2
ADAT .3
ADAT .4
At 176 .4 kHz and 192 kHz sample rates:
CH NO . INPUTS
1 Input .1
2 Input .2
3 Input .3
4 Input .4
5 Input .5
6 Input .6
7 Input .7
8 Input .8
9 S/PDIF .1
10 S/PDIF .1
11
12
13
14
15
16
17
18
19
20
OUTPUTS
Output .1
Output .2
Output .3
Output .4
Output .5
Output .6
Output .7
Output .8
Output .9
Output .10