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tion of speaker and telephone circuits. In this application,
they are typically mounted in the main control near the
microphone and telephone handset.
For remote annunciation applications, the modules are
typically mounted in special ABF or ABS boxes. Control
switch key locks (AKS-1/-1B) and phone jacks (APJ-1/-1B)
are available.
Communication between the ACS Series annunciators
and the host Fire Alarm Control Panel is made through an
EIA-485 multi-drop loop, eliminating the need for costly
wiring schemes. Four wires are required, two for the
EIA-485 communications (twisted pair), and two for 24 VDC
regulated power.
Retrofit of ACS Series annunciators into existing systems
is easily accomplished. Software may require upgrading,
and the AM2020 or AFP1010 must include a SIB-2048(A)/
SIB-NET Serial Interface Board.
All field-wiring terminations use removable, compression-
type terminal blocks for ease of installation, wiring, and
circuit testing.
Operation
The ACS Series annunciator and control system provides
the NOTIFIER system with up to 32 remote serially con-
nected annunciators, each with a capacity of 96 points, for
a total capacity of 3072 points (subject to the capability of
the FACP). The NCA is capable of using the full 96 points.
Local or remote power supplies and serial communica-
tions allow the ACS to be located virtually anywhere in the
protected premises.
AM2020, AFP1010, NFS-640 and NCA system alarm and/
or trouble conditions may be annunciated on a per-point
basis, or in a grouped or zone configuration.
Control of system operational controls, such as Signal Si-
lence, System Reset, and local annunciation controls (such
as Local Acknowledge and Lamp Test) may be accom-
plished through the modules rubber keypad.
Product Line Information
ACM-24AT: The Annunciator Control
Module-24AT contains 24 color-pro-
grammable (red/green/yellow) Active and
24 yellow Trouble LEDs, 24 momentary
touch-pad switches, a System Trouble
LED, an On-Line/Power LED, and a lo-
cal piezo sounder with a silence/acknowl-
edge switch for audible indication of
alarm and trouble conditions. Includes
instructions. 8-3/8" (21.27 cm) high;
4-3/8" (11.11 cm) wide.
AEM-24AT: The Annunciator Ex-
pander Module-24AT expands the
ACM-24AT by 24 system points. The AEM-24AT is identi-
cal in size and in frontal appearance to the ACM-24AT. Up
to three of these expander modules can be supported by
an ACM-24AT, for a maximum of 96
system points. 8-3/8" (21.27 cm) high;
4-3/8" (11.11 cm) wide. NOTE: The
AEM-24AT cannot be used to expand
the ACM-48A.
ACM-48A: The Annunciator Control
Module-48A contains 48 color-pro-
grammable (red/green/yellow) Active
LEDs, a System Trouble LED, an On-
Line/Power LED, and a local piezo
sounder with a Silence/Acknowledge
switch for audible indication of alarm
and trouble conditions. Includes in-
structions. 8-3/8" (21.27 cm) high; 4-3/8" (11.11 cm) wide.
AEM-48A: The Annunciator Expander Module-48A ex-
pands the ACM-48A by 48 system points. The AEM-48A is
identical in frontal appearance to the ACM-48A. One ex-
pander module can be supported by an ACM-48A, provid-
ing a maximum of 96 points (subject to the capability of
the FACP). 8-3/8" (21.27 cm) high; 4-3/8" (11.11 cm) wide.
NOTE: The AEM-48A cannot be used to expand the
ACM-24AT.
ABS-1B: (shown at right) The Annuncia-
tor Surface Box-1B (black) provides for the
remote mounting of one annunciator mod-
ule in a surface-mount enclosure. Knock-
outs are provided for use with 1/2" conduit.
The annunciator mounts directly to the
ABS-1B without a dress plate. 8-1/2"
(21.59 cm) high x 4-1/2" (11.43 cm) wide x
2" (5.08 cm) deep. NOTE: The ABS-1B
will not support the installation of the
AKS-1B Annunciator Key Switch.
ABS-1TB: The ABS-1TB is an attractive
surface-mount backbox for mounting one
ACS Series Annunciator. Unlike the ABS-1B, the ABS-1TB
has an increased depth that allows mounting of the APJ-1B
Annunciator Phone Jack and AKS-1B Annunciator Key
Switch. Black, 9-15/16" (25.24 cm) high x 4-5/8" (11.75 cm)
wide x 3" (7.62 cm) deep.
ABS-2B: The Annunciator Surface Box-2B (black) pro-
vides for the surface mounting of one ACM-24AT/AEM-24AT
combination or one ACM-48A/AEM-48A combination.
Knockouts are provided for use with 1/2" conduit. The an-
nunciators mount directly to the ABS-2B without a dress
plate. 8-1/2" (21.59 cm) high x 8-15/16" (22.7 cm) wide x
2" (5.08 cm) deep. NOTE: The ABS-2B will not support
the installation of the AKS-1B Annunciator Key Switch.
ABF-1B: (shown at right) The Annunciator Flush Box-1B
(black) provides for the remote
mounting of a single annuncia-
tor module in a flush-mount en-
closure. Knockouts are provided
for use with 1/2" conduit. The
ABF-1B includes a painted black
metal trim plate [11" (27.94 cm)
high x 6-1/4" (15.875 cm) wide],
mounting hardware, and an ad-
hesive-backed annunciator label
for the dress plate. 9-15/16"
(25.24 cm) high x 4-5/8" (11.75
cm) wide x 2-1/2" (6.35 cm) deep.
ABF-2B: The Annunciator Flush
Box-2B (black) provides for the flush mounting of two an-
nunciator modules. Includes a painted black metal trim
plate [11" (27.94 cm) high x 10-5/8" (26.99 cm) wide] and
adhesive-backed annunciator label. 8-1/2" (21.59 cm) high
x 8-15/16" (22.7 cm) wide x 3.75" (9.525 cm) deep.
ABF-4B: (shown at left) The An-
nunciator Flush Box-4B (black)
provides for the remote mount-
ing of one to four annunciator
modules. Knockouts are pro-
vided for use with 1/2" conduit.
The flush-mounted ABF-4B in-
cludes a painted black metal
trim plate [11" (27.94 cm) high x
19-3/8" (49.21 cm) wide] and an
annunciator label. 9-15/16"
(25.24 cm) high x 17-3/8" (44.13
cm) wide x 2-1/2" (6.35 cm)
deep.
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