Rev. 1 - 03/00
Copyright© 1997-2000, Alpha Communications®, All Rights Reserved Elvox is a Registered Trademark of Paso Sound Products Inc.
42 Central Drive • Farmingdale NY 11735-1202 • Phone (631) 777-5500 • Fax (631) 777-5599
TOLL-FREE 1-800-666-4800 • Web: www.AlphaCommunications.com • Email: firstname.lastname@example.org
Due to continuous product improvement, all colors, sizes, materials,
finishes and specifications are subject to change without notice.
ARCHITECTS' AND ENGINEERS'
The power supply/amplifier shall be Alpha Communica-
tions®/Elvox™ model 6681, or approved equal. Ampli-
fier shall operate from a standard 120VAC power source.
All other wiring to power supply/amplifier shall be low-
voltage Class II wiring, installed as per all federal, state,
and local electrical codes. Power supply/amplifier shall
surface mount right to the finished wall and shall be
installed in a suitable environment that is free from exces-
sive dirt, dust, temperature, humidity, grease and water.
Power supply/amplifier shall provide the intercom ampli-
fication and signaling power for proper system operation.
For most secure installation, power supply should be
installed into a lockable equipment cabinet/housing. The
6681 is designed to be used with the 5651W or 5651B
series (flush mount) open-voice apartment video-inter-
com monitor units.
Power supply/amplifier shall be installed a safe distance
from any source of electrical interference.
Contractor shall observe all local and national electrical
6681 Amplifier/Power Supply
The Alpha Communications® 6681 amplifier/power supplies are used
with the 5651W or 5651B series video-intercom monitors, to provide
intercom amplification, power to operate the electric door opener(s)
etc., and power to operate the video monitor units, for a single building
The 6681 units each require a standard 120VAC power source.
These 6681 amplifier/power supplies