Setup Guide

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.










