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VSP V-9962
Issue 2
V-9962
DIGITAL FEEDBACK ELIMINATOR
GENERAL
The V-9962 is a Digital Feedback Eliminator designed to
eliminate paging system acoustic feedback with an
option to prevent DTMF tones from being broadcast
through the paging system.
SPECIFICATIONS
Features
! Two audio outputs
Line level 600 ohm
Low impedance 8 ohm
(transformer isolated and separately adjustable)
! Audio input, 600 ohm, transformer isolated
! Three output relays - Play, Record, Busy
! LED Indicators
! Easy access volume controls
! Dip switch programmable
! Solid state, no moving parts
! Audio, DTMF, or contact closure activated
! DTMF message cancel
! Easy to install in new and existing systems
Access
! DTMF (Dual Tone Multi-Frequency)
! VOX (Voice Operated Switch)
! Contact Closure
Dimensions & Weight
Dimensions:
! 19.05cm H x 20.32cm W x 3.18cm D
(7.5"H x 8.0"W x 1.25"D)
! Weight: 1.36 Kg (3.0 lbs.)
Nominal Specifications
Input Impedance: 600 ohms
Input Level: -10 dBm
Line Level Output Impedance: 600 ohms
Output Level: -10 dBm (adjustable)
Speaker Level Output Impedance: 8 ohms
Output Level: -10 dBm (adjustable)
VOX Sensitivity: -21 dBm (adjustable)
Release time after last sensed audio: 3 seconds
Nominal Power Requirements
! -24 VDC, 500 mA regulated "A" battery
Environment
Temperature: 0 to 40 Degrees C
Humidity: 0 to 85% non-precipitating
DESIGN
The V-9962 is designed to eliminate paging system
acoustic feedback with an option to prevent DTMF
tones from being broadcast through the paging system.
When a page is made, the message is digitized and
saved. Upon completion of the live page, the message
is released to play over the system speakers. This
eliminates the offensive squeal of feedback commonly
produced by telephones or microphones when making a
page.
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