Extron electronic VLM 1000 用户手册
VoiceLift Microphone Installation • Introduction — Overview
1-1
Introduction — Overview
About This Guide
This manual covers the installation of the Extron VoiceLift
™
Microphone
as part of an Extron PoleVault
™
system.
The VoiceLift VLR 102 receiver can be installed in a drop ceiling, a standard junction box, an octagonal ceiling box, or
on a wall. It is assumed that the installer has some knowledge of and experience with A/V, electrical, or electronic
device installation. This manual guides the A/V installer through the steps to install and connect each component of
the system.
The VoiceLift Microphone
The Extron VoiceLift Microphone is an easy-to-use, low-power, classroom amplification system that ensures the
teacher can be clearly heard at a comfortable level throughout the classroom. Speech is picked up by the pendant
microphone worn by the teacher and is transmitted wirelessly to a base station receiver. The signal is then fed to the
PVS 204SA PoleVault Switcher, which powers strategically placed loudspeakers to improve the signal-to-noise ratio
of the teacher's voice above ambient noise level.
L
R
AUX
/MIX
IN
1B
1A
I
N
P
P
U
T
T
S
O
U
T
U
T
P
U
T
T
S
2B
2A
4
3
RS-2
32 M
LC/IR
DC V
OL
4/8
Ohm
s
AM
PL
IFIE
D O
UTPU
TS
VOL/MUTE
Tx
A
B
C
Rx
IR
12V
10V
POW
ER
12V
3A MA
X
US
LISTED
17TT
AUD
IO/V
IDEO
APPA
RATU
S
®
RGB
VIDE
O
RGB
VIDE
O
ST
ER
EO
ON
DUA
L
MO
NO
HIGH
PAS
PAS
S
FILT
ER
OFF
ON
CONFIG
DISPL
AY
MLC 104 IP Plus
VOLUME
1
2
3
4
ON
OF
F
VIDEO
AU
X
VIDEO
IMAGE
MUTE
PC
SI 3C LP
Plenum Full-Range
Ceiling Speakers
PVS 204SA
PoleVault
®
Switcher / Amplifier
TCP/IP
Network
VoiceLift
Receiver
VoiceLift
Pendant
Microphone
MLC 104 IP Plus
MediaLink
Controller
Free
GlobalViewer
Software
VoiceLift Microphone installation and wiring overview
FCC Class B Notice
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that the interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.