background image

Issue 2

1

947342

V-420

DYNAMIC NOISE CANCELLING MICROPHONE

INTRODUCTION

These instructions contain the
specifications and information necessary
to install, operate and maintain the V-
420 Dynamic Noise Cancelling
Microphone.

SPECIFICATIONS

Applications

  Valcom Paging Systems

Features

 Dynamic 

Element

  Soft Lip Guard

 Cycolac 

Housing

  Push to Talk Button

  Heavy Duty Four Conductor

Shielded Cable

  Low Impedance (Balanced)

Dimensions/Weight

  3.94"H x 2.97"W x 2.63"D

   (10.00cm H x 7.54cm W x 6.68cm D)

  10 oz.  (284 grams)

Specifications

 Element

Dynamic

  Frequency Response

100 to 5KHz

  Output Impedance

Lo Z 200 Ohms

  Output Level

Lo Z -58dB

(0dB = 1 mw/10 microbars)

INSTALLATION

Figure 1 (on reverse) depicts the V-420
connected to the Valcom V-9939B
microphone adapter.

TECHNICAL ASSISTANCE

When trouble is reported, verify the unit
is turned on and there are no broken
connections leading to this unit. 
Assistance in troubleshooting is
available from the factory.  When
calling, have a VOM and a test set
available and call from the job site.  Call
(540) 563-2000 and ask for Technical
Support and press 1 or visit our website
at http://www.valcom.com.

Valcom equipment is not field
repairable.  Valcom, Inc. maintains
service facilities in Roanoke, VA. 
Should repairs be necessary, attach a
tag to the unit clearly stating your
company name, address, phone
number, contact person and the nature
of the problem. Send the unit to:

Valcom, Inc.

Repair and Return Dept.

5614 Hollins Road

Roanoke, VA  24019-5056

Reviews: