RME Audio Fireface 400 User Manual page 8

The rear panel of the Fireface 400 features four analog inputs, six analog outputs, the power
socket, and all digital inputs and outputs.
SPDIF I/O coaxial (RCA): AES/EBU compatible. The Fireface 400 accepts the commonly used
digital audio formats, SPDIF as well as AES/EBU.
ADAT I/O (TOSLINK):
Can also be used as
optical SPDIF input and
output, if set up accord-
ingly in the Settings
dialog. The Settings
dialog is started by
clicking on the fire sym-
bol in the Task Bar's
system tray.
Word Clock I/O (BNC): A push switch activates internal termination (75 Ohms). When termina-
tion is activated the yellow LED besides the switch lights up.
POWER (switch): The Fireface 400 can be powered by an external power supply (EXT.) or via
FireWire (BUS).
Note: 4-pin FireWire sockets as found in laptops do not provide power!
Socket for power connection. The included hi-performance switch mode power supply makes
the Fireface operate in the range of 100V to 240V AC. It is short-circuit-proof, has an integrated
line filter, is fully regulated against voltage fluctuations, and suppresses mains interference.
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User's Guide Fireface 400 © RME
MIDI I/O: Provides two MIDI inputs
and outputs via the included break-
out cable.
FW 400: 6-pin FireWire sockets for
connection to the computer. The
second socket provides hub func-
tionality, to connect another Fire-
Wire device.