Rev. 1 - 09/98
Copyright© 1998-2000, Alpha Communications®, All Rights Reserved
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
ARCHITECTS' AND ENGINEERS'
The master station(s) shall be Alpha Communications®
model AA905B (surface) or AA905C (flush) or approved
equivalent. Master(s) shall have clear two-way communica-
tions. Master(s) shall feature a 12-button keypad, ultra-
sensitive electret microphone, hands-free voice operation
and shall require simple home-run wiring. Master(s) shall be
surface wall mounted (model AA905B) or flush mounted
(model AA905C) using the BBF863 flush backbox/hous-
ing. Unit(s) shall be finished in a stainless steel finish. Units
may be used directly outdoors and are designed to operate
in a temperature range of minus 20 degrees to plus 50
degrees Celsius. Both models may be used with the optional
(model GD519) privacy handset, for confidentiality or
softspeaking, where required.
Master(s) shall be used with the RM5000 and/or CB901
series microprocessor intercom systems.
Contractor shall observe all local and national electrical
and building codes.
Due to continuous product improvement, all colors, sizes, materials,
finishes and specifications are subject to change without notice.
AA905B Surface and
The AA905B (surface) and AA905C (flush mounted) light
industrial master stations are compact splash and dust resistant
units. They are tested for internal or external use in temperatures
from minus 20 degrees to plus 50 degrees C. The inside
electronic parts and circuit board is specially treated with
anticorrosive lacquer, protected by a plastic housing and mounted
in a stainless steel cabinet. Both models are fitted with vandal-
resistant locking screws. Both models are complete with built-