Alpha IS543TS Specsheet

Product Specification Sheet A PS789 - Rev. 07/2013

IS543TS Intercom Station with 'Listen' Toggle Switch

42 Central Drive • Farmingdale • NY • 11735-1202 • Phone: [phone] • Fax: [phone]

TOLL-FREE: [phone] • Web: AlphaCommunications.com • Email: [e-mail]

Copyright© 1998-201 4 Alpha Communications® - All Rights Reserved.

Due to co ntinuous pro duct improvement, all colo rs, sizes, materials, finishes and specification s are subject to ch ange without n otice.

< Previous (APS788) Next (APS790) >

Shown with built-in Toggle Switch

Architects' And Engineers'

Specifications

Universal' master station(s) shall be Alpha
Communications® model IS543TS or
approved equal, equipped with
momentary act ion push-butt ons for T ALK,
LISTEN, and DOOR operation. Each push­button shall have both English and Universal
Graphic Symbol imprinting, as well as Braille
lettering. T he mylar cone speaker /
microphone shall be a 2.5" high-sensitivity
type with voice-frequency response. Screw
terminal connec tions shall be provided for
positive wiring termination, as well as t wo
(2) pigtail wires for connec tion t o optional
model ST- FOOT foot switc h. T he
patented* design shall allow for connec tion
to popular 5- wire, 4-wire or 3-wire
intercom system configurations. T he station
shall be molded of high-impact, flame
retardant ABS plastic, in a white finish.

The IS543TS shall be supplied with 2
vertical and 2 horizontal mounting holes, to
allow surface mounting over a single­gang elect rical box or mounting ring, or over
the popular IH101 and/ or IH102 flush
housing(s). Four (4) mounting hole plugs
shall be provided for covering the four (4)
mounting holes and two (2) mounting
screws (provided).

Contract or shall observe all local and
national elect rical and building codes.

IS543TS 'Universal' Master Intercom Station with Toggle Switch

The Alpha Communicat ions® IS543TS is a universal master intercom station which
combines modern st yling with ease of operation to provide natural, clear
voice communicat ion and monitoring of a remote station. The white, high-impact, ABS
plastic faceplate blends with any decor. The advanced c ircuitry and versatility permits
use in a large variety of spec ialized intercom applicat ions.

The patented* design of this station allows for connec tion to popular 5-wire, 4-wire or
3-wire intercom system c onfigurations, with a single model st ation. A built- in
Toggle Switch enables the stat ion to st ay in the 'Listen' mode. Simply depressing the
'Talk' button, or depressing the optional model ST -FOOT foot switch will override
the 'Listen' mode and place t he station in 'Talk' mode. The Door button is not usually used
for these applications, but it c an be used for another signaling purpose if needed.

Features

Surface mounting or mounts over flush housing
Simple, push butt on operation
Easy installation
Patented* design allows use on 5-wire, 4-wire or 3-wire systems
Clear voice-quality with long-life Mylar Speaker
Built-in 'Listen' mode Toggle Switch
English and international (graphic) symbols
Braille lettering on fac eplate

Specifications

Dimensions:

Height: 7.00" (178mm)
Width: 5.00" (127mm)
Projects: 1.00" (26mm) from mounting surfac e

Finish: Durable, high-impac t ABS plast ic.

Controls:

Individually replaceable type push buttons with self- wiping c ontacts.
Identified for TALK, LISTEN, and DOOR functions.

Speaker/Mic:

2.50" (62.5mm) mylar c one with voice response. Also used for
elect ronic tone signal.

Connections: Screw terminals standard.

Housing:

Surface mounts over single gang elect rical box or mounting ring, or right
on the wall, or over the IH101 and/or IH102 flush housing(s)

*L icen se d un de r U S P a ten t# 7 ,40 9, 05 2