E4 Hardware Description; Front Panel; Controls; Indicators - Bose FreeSpace E4 Series II Owner's Manual

3.1 Front panel

3.1.1 Controls

1
STANDBY – The STANDBY button switches the unit
between standby and active. The color of the LED above the
switch indicates the status:
Amber = Unit is in standby
Unlit = Unit is active
2
USB – A USB communications port (for future use)

3.1.2 Indicators

3
SYSTEM STATUS – The SYSTEM STATUS LED indicates the
condition of the unit:
Green = Normal operation
Red = Fault condition
4
AMP OUTPUTS – These LEDs work in pairs (1 and 2, 3 and
4) and indicate the operating status of the four amplifier output

3.0 E4 Hardware Description

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4
5
channels:
Green = Normal operation
Red = Fault condition
Unlit = No signal
5
AUDIO SOURCES – These LEDs indicate the operating
status of the four input sources:
Green = Good signal
Amber = Low signal
Red = Signal clipping
Unlit = No signal
6
DIRECT INPUT – The color of this LED indicates the condi-
tion of the source connected to the DIRECT IN/CONTROL con-
nector on the rear panel.
Amber = Active bypass
Unlit = Normal operation
3
1
6
2