Valcom V-420 User Manual

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