Rev. 2 - 05/08
Copyright© 1998-2008, 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: email@example.com
ARCHITECTS' AND ENGINEERS'
The master station(s) shall be Alpha Communications®
model AA903C or approved equivalent. Master(s) shall
have clear two-way communications. Master(s) shall fea-
ture a 16-button keypad, and shall require simple home-
run wiring. Master(s) shall be flush or surface wall mounted
using the appropriate backbox/housing. Master(s) shall
be used with the BBF863 (flush backbox) or BBS863
(surface back box) or BBD905 (desk backbox). Unit shall
be finished in a brushed aluminum finish.
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.
AA903C Flush (or Surface)
Mount Master Station
The AA903C is designed for normal use as a flush-mounted unit with
back-box model# BBF863. However, the station will also fit into
a model# BBS863 back-box for surface mounting, or a model#
BBD905 for desk mounting.
The unit features a brushed aluminum frontplate with speaker and
microphone for normal handsfree speech with a range of approxi-
mately 3-5 meters or 10-15 feet. Its keyboard consists of 10
numeric dialing buttons (DTMF), Push-to-Talk button (T), Cancel
button (X), Volume Up/Down buttons, Privacy button (P) and a
microphone Mute button (M). A status LED is used for indicating
station-ON and Privacy.
An optional add-on handset connector is included, for use with the
optional model# GD501 privacy handset.
The station permits the connection of a parallel speaker where
additional output is required (loudspeaker im