2
947049
Coverage
The distance you can be away from a speaker and still
have good talkback depends on the type of speaker
and ambient noise level.
The speaker should be as close as possible to the area
where talkback is desired. It should not be mounted
close to, or pointed at, noise producing equipment
such as fans, air conditioners, machinery, or
compressors.
The chart below shows maximum talkback distances
relative to the noise level of the surroundings.
Remember: The speaker is no better than
your ears. If you can not carry on a
conversation at normal voice levels over the
required talkback distance, then talkback
page equipment will not function
satisfactorily.
INSTALLATION
Cabling
Connections should be accomplished using regular
twisted pair wiring. Do not split pairs.
Connections
Connect station or other suitable wire to leads as
follows:
Attaching Speaker to Base
NOTE: For ease of installation, the base can be
attached to the speaker before or after the base is
mounted.
•
Loosen position adjustment knob
•
Insert the ball of the base into the socket of the
speaker
•
Tighten the position adjustment knob
Mounting
Mount the horn to a suitable surface using the
hardware provided. These units can be mounted to a
wall, a beam, or an electrical box.
•
Mount the base to a wall using the two holes
provided. Knockout holes are provided for
punch out should additional holes be desired.
•
A "C" clamp is provided with the horns to allow
mounting to a beam. Place the bolt through the
hole in the bottom of the base to secure the "C"
clamp to the beam (See Figure 1). It is suggested
that the horn be mounted to the underside of the
"I" beam to provide maximum positioning
adjustments.
•
Connection to an electrical backbox is
accomplished by channeling wire through the
ball of the base and making appropriate
connections. The base has holes punched for a
double-gang square box, but by punching out
additional knockout holes, the base can be
mounted to a single-gang or octagon box
(See Figure 2).
The horns may be rotated or moved up and down to
obtain the desired position by loosening the knob at
the bottom of the unit approximately one turn
(See Figures 1 & 2). Make required adjustments and
re-tighten knob.
Machine
Shop
(Noisy)
90
80
70
60
50
10'
20'
30'
40'
50'
Shipping
(Moderate)
Waiting
Rooms
(Quiet)
Talkback not recommended above 80dB
TYPICAL REPLY DISTANCE CHART
Maximum Talkback Reply Distance
VALCOM
PAGE
CONTROL
UNIT
Tip
Ring
White
Black
Connections to
a V-1048C
T
R
+
Green
Red
Black
White
Connections to a
V-1048B
*
* This is switched battery supplied by page control unit.
VALCOM
PAGE
CONTROL
UNIT
