Focusrite Scarlett 18i8 Guide De L'utilisateur page 13

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Rear Panel

13. LINE INPUTS 5 to 8 – the inputs are balanced, on ¼" (6.35 mm) jack sockets. Connect further

line level sources here, using either ¼" TRS (balanced) or TS (unbalanced) jack plugs.

14. LINE OUTPUTS 1 to 4 – four balanced analogue line outputs on ¼" (6.35 mm) jack sockets;

use TRS jacks for a balanced connection or TS jacks for unbalanced. Outputs 1 and 2 will

normally be used to drive the primary monitoring system, though the signals available at any

of these outputs may be defined in Focusrite Control. Outputs 3 and 4 can typically be used for

driving alternative speakers (i.e., midfield, nearfield, etc.), or to drive outboard FX processors.

15. OPTICAL INPUT – TOSLINK connector able to carry eight channels of digital audio in ADAT

format at 44.1/48 kHz sample rate or four channels at 88.2/96 kHz. These are simply additional

inputs (13 to 20) to the Scarlett 18i8. The optical input can also be used as an S/PDIF input if

you need to connect equipment with an optical S/PDIF output. Note that the optical input is

disabled when sample rates of 176.4/192 kHz are in use.

USB 2.0 port – Type C connector; connect the Scarlett 18i8 to your computer with the

16.

cable supplied.

17. MIDI IN and MIDI OUT – standard 5-pin DIN sockets for connection of external MIDI equipment.

The Scarlett 18i8 acts as a MIDI interface, allowing MIDI data to/from your computer to be

distributed to additional MIDI devices.

18. SPDIF IN and OUT – two phono (RCA) sockets carrying two-channel digital audio signals in

and out of the Scarlett 18i8 in S/PDIF format. Like all the other inputs and outputs, signals at

these connectors may be routed in Focusrite Control.

19. External DC power input – power the Scarlett 18i8 via the separate AC adaptor (PSU) supplied

with the unit. Note that the Scarlett 18i8 cannot be powered via its USB port from the host

computer.

20. Power On/Off switch.

21. K (Kensington security slot) – secure your Scarlett 18i8 to a suitable structure if desired.