Specifications

Chapter 1: Introduction 3
Stage Rack Front Panel
Stage Rack I/O Section
The Stage Rack I/O section consists of 12 slots that accept
modular input cards or output cards. The first 6 slots (A–F) of
the Stage Rack accept input cards (such as SRI or DSI cards)
only. The last 6 slots (G–M) only accept output cards.
Stage Rack Controller Section
Power Indicators
OK LED Green LED lights to indicate that power and fan sig-
nals for at least one Stage Rack are functioning correctly.
Fault LED Red LED lights to indicate a potential power or fan
signal problem.
Comm Indicators
FOH LED
 Flashing fast means Stage Rack processor is OK and is receiv-
ing data from the FOH Rack.
 Flashing slow means Stage Rack processor is OK but is not
receiving data from the FOH Rack.
 Full on or off means Stage Rack processor is stuck.
PQ LED
 Flashing means that messages are being received from the
PQ Rack and PQ Controllers.
 No flashing indicates that there is no active link between
the PQ Rack and the Stage Rack.
Personal Q Rack Connector
The Personal Q Rack Connector is a special 4-pin XLR connec-
tor that accepts the PQ Link cable supplied with the PQ Rack
unit.
Snake Connectors
The Stage Rack Digital Snake connectors consist of two pairs of
BNC-style connectors (Snake 1 In and Out, Snake 2 In and
Out), and two pairs of signal status indicators.
Active LED Green LED lights to indicate that connection to
FOH Rack is active for the corresponding Snake. Only one
Snake can be active at a time.
Sig LED Green LED lights to indicate that signal is present on
the corresponding Snake.
All Snake LEDs flash when no Snake signal is present.
Figure 1. Stage Rack front panel showing 6 SRI (analog input) cards and an SRO (analog output) card
Input section
Controller
section
Output Section