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VSP-V-9945A 

 

 

Issue 7 

 

947747 

 

 
 

 

V-9945A 

SINGLE TONE/INTERRUPTED 

WARBLE TONE LOUD HORN 

 

 
 

INTRODUCTION

 

The V-9945A is a horn with built-in tone generator 
and amplifier used for loud signaling applications. 
These instructions provide identification, connection, 
installation, operation and maintenance information 
for the V-9945A, Single Tone/Interrupted Warble 
Tone Horn Ringer. 
 

SPECIFICATIONS

 

Purpose

 

The V-9945A provides amplified electronic tones for 
signaling in large or noisy areas or outside. 
 

Applications

 

• 

Night ringing 

• 

C. O. audible ringing 

• 

Time clocks 

• 

Special purpose signaling 

 

Features

 

• 

Self-contained tone generator, amplifier, volume 
control and horn speaker 

• 

Single tone or warble tone outputs  

• 

Power supply included 

• 

Activated by dry contact closure  

• 

Single tone will override warble tone 

• 

Warble tone interrupted 1 second on, 5 seconds 
off 

• 

Single tone continuous for duration of closure  

• 

Weatherproof 

• 

Units may be multipled for simultaneous access 

 

Capacity

 

The V-9945A has provisions for two inputs, either or 
both of which can be used in an application.  If both 
inputs are activated simultaneously, the single tone 
will override the warble tone. 
 
 
The V-9945A is a stand alone ringer horn activated by 

a relay.  If more than one ringer horn is required, 
contact Valcom Technical Support at (540) 563-2000 
for design assistance. 

 
Dimensions/Weight

 

• 

6.50"H x 8.20"W x 10.40"D, plus mounting 
bracket 

      (16.51cm H x 20.83cm W x 26.42cm D) 

• 

4.3 lbs. (1.95 kg) 

 

Power Requirements

 

-21.5 to -26.0VDC "B" battery, 250mA nominal. 
 

Environment

 

• 

Temperature: 

-20 to +55 degrees C 

• 

Humidity: 

0 to 95% non-precipitating 

 

DESIGN

 

Access Requirements

 

The V-9945A requires a dry contact closure for 
activation of each tone (If both tones will be used, 
two closures are required).  The closures may be in 
the form of night ringing relay contacts, time clock 
contacts, a standard normally open switch or 
equivalent. 
 

 

 

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