Rev. 3 - 02/09
Copyright© 1998-2009, 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 remote station(s) shall be Alpha Communications®/
Ring model AB913B (surface) or AB913C (flush) or ap-
proved equivalent. Remote(s) shall have clear two-way
communications. Remote(s) shall feature a pushbutton
(for ringing a bell or acceptance of calls), ultra-sensitive
electret microphone, hands-free voice operation and shall
require simple home-run wiring. Remote(s) shall be sur-
face wall mounted (model AB913B) or flush mounted
(model AB913C) 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. Up to 10 remote stations may be
connected in parallel, on a single call number.
Master(s) shall be used with the RM5000EX 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.
AB913B Surface and
AB913C Flush Door Stations
The AB913B (surface) and AB913C (flush mounted) door
stations are tested for external use in temperature from minus 20
degrees to plus 50 degrees C. They both use the same complete
internal assembly. The circuit board is specially treated with
anticorrosive compound and fitted in stainless steel wallboxes
for optimum protection against water, dust or chemical penetra-
tion. External housing are fitted with vandal-resistant locking
screws. In function, they are identical, with warning lamp and a
single push button. Used in the standard mode, th