Bose FREESPACE 4400 - Manual (Page 16)

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3.0 Freespace ® 4400 Hardware Description
3.2 Rear panel
3.2.1 System controls
SENSE MICROPHONES – Input connectors for sensing
microphones used with the Auto Volume feature.
RS-232 – Standard RS-232 communications port. Provides
a communications interface for a PC running FreeSpace ® 4400
Installer™ software. The FreeSpace 4400 Installer™ software is
used to configure the FreeSpace 4400 system.
Note: The RS-232 port should only be used to connect a
FreeSpace 4400 system to a PC.
WALL PLATE CONNECTIONS – Input connectors for AVM
1-Zone, AVM 2-Zone User Interface, or Page 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 bypassed, full amplifier
gain) audio input which can override the sources playing on all
four output channels
3.2.3 Amplifier outputs
ZONE OUTPUTS 1/2/3/4 – Loudspeaker connections for
four zones
Installer’s Note: Please notice the polarity markings when
wiring loudspeaker cables to the ZONE OUTPUT 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 OUTPUT lines to 70/
100V.
POWER ON/OFF – Switches AC power on or off
Fuse –T6.3(6,3)A L 250V (100/120V) or
T3.15(3,15)A L 250V (220-240V).
AC MAINS LINE CORD JACK – AC line voltage input
INPUT VOLTAGE – switches need to be configured for
proper input voltage.
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