Chapter 6: 003 Rack Front Panel 57
Status Indicators
Host (“1394”) Status Indicator
The Host status LED, marked “1394” below its
LED, indicates that communication has been es-
tablished between the unit and Pro Tools LE
software (or another software application)
through FireWire.
Sync Indicators
The Sync LEDs indicate the current clock source.
When the current clock source is not estab-
lished, the respective LED flashes.
If none of the Sync LEDs are lit, 003 Rack’s clock
source is set to Internal.
There are three Sync LEDs:
W Clk (Word Clock) LED Lights when clocking to
Word Clock.
S/PDIF LED Lights when clocking to the S/PDIF
on the RCA or Optical port.
ADAT LED Lights when clocking to ADAT on the
Optical port.
MIDI Data Indicators
The MIDI Data LEDs indicate the presence of
MIDI data on the MIDI In, MIDI Out 1, or MIDI
Out 2 ports. Individual LEDs are provided for
each port. Active sensing is not indicated.