Applies to:
- Scarlett 16i16 4th Gen
- Scarlett 18i16 4th Gen
- Scarlett 18i20 4th Gen
The digital ports on the 3 larger Scarlett 4th Gen interfaces can be used to expand the number of inputs and outputs you're able to use. They can be configured in different ways depending on how you wish to use them. These settings can be changed in the "Sample rate & clocking" section of Focusrite Control 2's Preferences. After changing any of the configurations, you will need to restart your Scarlett for the settings to take effect.
16i16 and 18i16
You can change the type of digital signal the Optical ports will send and receive. The default setting out of the factory is "ADAT".
Below are some tables which outline the type of signal and the number of channels each port will pass depending on the setting.
ADAT (Default)
S/PDIF
18i20
By changing the S/PDIF mode, you can change which digital port will send and receive S/PDIF. By changing the ADAT mode, you can change the number of ADAT channels you can use at once when using 88.2 or 96 kHz sample rates. At these sample rates, the S/PDIF and ADAT settings are somewhat dependent on one another, so changing one setting may change another setting.
Below are some tables which outline the type of signal and the number of channels each port will pass depending on the setting.
S/PDIF mode
RCA (Coaxial)
Optical
*S/PDIF via the Optical ports is unavailable when the ADAT mode is set to Dual
ADAT mode
This mode is only applicable when using a sample rate of 88.2 or 96 kHz