9 947100
PROBLEM SOLVERS
Automatic Volume Control
The V-9933A Noise Sensing Volume Control monitors
the noise level fluctuations in an area by utilizing a
built-in microphone. When a page is made, the
V-
9933A electronically locks onto the last noise level
sampled and automatically adjust the volume of up to
150 Valcom One-Way Self-Amplified Speakers in
order to compensate for the current ambient noise
level, thus eliminating the need for personnel to
manually adjust the paging speakers. The V-9933A
should be mounted in the area that experiences the
fluctuating noise. If a single zone contains areas of
independently fluctuating noise levels, multiple V-
9933A units may be used (one per area).
•
Each Noise Sensing Volume Control, V-9933A,
can control up to 150 amplified speakers or horns
in a single zone.
•
Multiple Noise Sensing Volume Controls, V-
9933A, can be used on the same zone if desired.
•
V-9933A can be connected to a zone output of any
Valcom One-Way Page Control/Interface or
Station Level Page Control.
•
Not for use with background music without
additional equipment.
Remote Microphone
The V-9934 Remote Microphone may be used with
the V-9933A Noise Sensing Volume Control.
•
V-9934 is a self-contained microphone and pre-
amp.
•
No power supply is required for V-9934
•
Up to four v-9934 units may be paralleled on one
V-9933A.
•
Each V-9934 may be on a 1000’ wire run.
Stacking Feedback Eliminator
The V-996
4
, Stacking Feedback Eliminator, is
designed to prevent paging system feedback. When a
page is made into a zone, the V-9964 records the page
into digital memory. Upon completion of the live
page, the message is released to play over the zone of
speakers. Since the paging party has hung up the
telephone or released the microphone, offensive
feedback cannot occur.
•
Each Stacking Feedback Eliminator, V-9964, can
control up to 150 amplified speakers or horns in a
single zone.
•
Multiple Stacking Feedback Eliminators, V-9964,
can be used on multiple zone page controls.
•
The V-9964 can be connected to a zone output of
any Valcom One-Way Page Control/Interface or
Station Level Page Control.
ENHANCEMENT TO EXISTING
25/70/100 VOLT PAGING
SYSTEMS
Using a Valcom Page Control/Interface
with a Central Amplifier
Typically a zone from a one-way control unit may be
directly connected to a high power amplifier to allow
access to existing paging equipment. In certain cases
capacitors or a resistor network may be required to
interface the Valcom equipment to the amplifier.
Contact Valcom Technical Support if trouble is
encountered.
NOTE: Not all Valcom page control units have
control leads available for amplifier control.
Use Valcom One-Way Self-Amplified Speakers to
expand a 25/70/100V audio zone.