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3.0 E-4 Hardware Description
3.2 Rear panel
3.2.1 System controls
SENSE MICROPHONES – Input connectors for sensing
microphones used with the Auto Volume feature. See the Auto
Volume Kit.
RS-232 – Standard RS-232 communications port. Provides
a communications interface for a PC running FreeSpace
®
system
Installer™ software. The Installer™ software is used to configure
the E-4 hardware.
WALL PLATE CONNECTIONS – Input connectors for stan-
dard and Auto Volume user interfaces
REMOTE ON/OFF – An input connector for a remote
STANDBY switch
3.2.2 Audio source inputs
LINE 1/LINE 2 – Unbalanced audio inputs
AUX MIC/LINE 3 – Balanced audio input with phantom power
PAGE/MIC/LINE 4 – Balanced audio input with phantom power
DIRECT IN/CONTROL – Balanced (DSP bypass at max. power)
3.2.3 Amplifier outputs
ZONE OUT 1/2/3/4 – Speaker connections for four zones
Installer’s Note: Please notice the polarity markings when
wiring speaker cables to the ZONE OUT connectors.
CAUTION: DO NOT ground the minus (–) terminals.
ZONE 4 LINE OUT – A line-level output that duplicates the
program material from LINE 4. May be used to feed another
amplifier installed for a large zone. The 12V control output is used
to connect to Bose
®
amplifier sequence inputs.
MUSIC ON HOLD/PBX OUT – An audio output used to
provide music input to a PBX system
3.2.4 AC power
OUTPUT VOLTAGE – Sets the ZONE OUT lines to 70/100V.
Set fuse box to 100/120V for 70V; 220/240V for 100V
POWER ON/OFF – Switches AC power on or off
Fuse box – Configures the E-4 for 100/120V or 220/240V.
Set OUTPUT VOLTAGE to 70V for 100/120V; 100V for 220/240V.
AC line cord jack – AC line voltage input
ZONE OUT
ZONE4
LINE OUT
DIRECT IN/
CONTROL
SENSE MICROPHONES
ZONE 1 ZONE 2 ZONE 3 ZONE 4
WALL PLATE CONNECTIONS
REMOTE
ON/OFF
LINE 2
MUSIC ON
HOLD/
PBX OUT
Bose Corporation, Framingham, MA 01701-9168
Made in the U.S.A.
70V 100V
RS232
AUX MIC/
LINE 3
PAGE/ MIC/
LINE4
1
3
2
4
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
POWER
ON
OFF
OUTPUT
VOLTAGE
34
12
DO NOT SWITCH
WHILE POWER IS ON
LINE 1
AUDIO SOURCES
FreeSpace Model E-4
400 Watt System Electronics
USE ONLY CLASS 2 WIRING
ZONE OUT
100/120V~AC T6.25A, L250V
220/240V~AC T3.15A, L250V
50/60Hz
300W MAX
TüV Rheinland
geprüfte
Sicherheit
AUDIO
EQUIPMENT
LISTED 917D
®
PTT PTT
12V
This device complies with part 15 of the FCC rules. Operation is
subject to the following conditions: (1)This device may not cause
harmful interference and (2)this device must accept any interference
received,including interference which may cause undesired operation.
Complies with Canadian ICES-003 Class A Spec.
CONNECTOR
ORIENTATION
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