Planning the installation, Placement of the receiver, Room layout and content considerations – Extron electronic VLM 2000 User Manual
Page 46: Preliminar y, Installing and mounting the receiver, Placement of the receiver, Room layout and content considerations
VoiceLift Microphone
™
• Installing and Mounting the Receiver
5-2
Installing and Mounting the Receiver
PRELIMINAR
Y
This section provides an overview of the procedures for planning and performing
an installation of the VoiceLift VLR 102 Receiver and/or the VLR 102 SR Secondary
Receiver. For the complete procedures, refer to the VoiceLift Microphone Installation
Guide
, part #68-1629-01.
Planning the Installation
Before you start to install the VLR 102 receiver, there are several major factors that
you must consider in order to ensure that the installation is as smooth and trouble
free as possible, and that the result meets the needs of the users.
Placement of the receiver
Placement of the receiver (sensor location) is very important for optimal
performance of the microphone. The best location is in the ceiling, at or near the
middle of the room, where the receiver is in line of sight, regardless of the teacher/
presenter’s position in the room. This also minimizes the transmission distance.
If mounting on the ceiling is not possible, the receiver should be placed high and
centered on the longest wall of the room.
Room layout and content considerations
Because IR technology requires line-of-sight placement, take into consideration
anything that could impact or block the transmission of the IR signal from the
microphone to the receiver. If obstruction is unavoidable, the IR signals can
bounce off walls and still reach the sensor; however, light-absorbing surfaces such
as dark walls or chalkboards also can impede the signal.
The diagram below shows a typical classroom installation incorporating the
VoiceLift Microphone.
PVS 204SA
PoleVault
Switcher
L
R
AUX
/MIX
IN
1B
1A
I
N
P
U
T
S
O
U
T
P
U
T
S
2B
2A
4
3
RS
-232
MLC
/IR
DC V
OL
4/8
Ohm
s
AM
PLIF
IED
OUT
PU
TS
VOL
/MU
TE
Tx
A
B
C
Rx
IR
12V
10V
POW
ER
12V
3A M
AX
US
LISTE
D 17T
T
AUD
IO/V
IDEO
APPA
RATU
S
®
RGB
VID
EO
RGB
VID
EO
STE
REO
ON
DUA
L
MON
O
HIG
H
PASS
FILT
ER
OF
F
ON
Extr
on
PW
R
C
H
A
R
G
E
O
FF
/M
U
T
E
/C
H
G
O
N
Ext
ron
CO
NFIG
DISP
LA
Y
ML
C 104
IP Pl
us
VOLU
ME
1
2
3
4
ON
OFF
VIDEO
AU
X
VIDE
O
IMA
GE
MU
TE
PC
CO
MP
UT
ER
IN
AUDIO
IN
AUDIO IN
L
R
VIDE
O IN
VLR 102
Receiver
VLC 102
Desktop Charging
Station
VLP 102
Pendant
Microphone
SI 3C LP
Plenum Full-Range
Ceiling Speakers
TCP/IP
Network