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
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