Annunciation Modules System Overview
NFS-640 Installation Manual P/N 51332:B1 12/01/2003 21
• XP6-MA enables an intelligent alarm system to monitor six zones of conventional two-wire
detectors.
For installation instructions, refer to the documentation provided with the modules.
2.7 Annunciation Modules
Introduction
This section contains brief descriptions and model numbers of annunciator modules that can be
connected to the control panel. Communication between the control panel and annunciators takes
place over a two-wire serial interface connected to the control panel’s EIA-485 ACS Mode
connection. Section 2.8 “Annunciators” contains more detailed information.
Description
Below are descriptions of the Annunciator Modules and Expander Modules used with the control
panel.
Annunciator Control Module - ACM-8R. Provides the control panel with a mappable relay
control module. Relays can be selected for mapping anywhere in the system memory (in groups of
eight). Provides eight Form-C relays with 5 A @ 125 VAC (resistive) or 5 A @ 30 VDC (resistive)
or 2 A @ 125 VAC (inductive) contacts. Tracks any group of eight zones within the system.
Refer to ACM-8R Annunciator Control Module manual for more information.
Lamp Driver Annunciator Module - LDM-32. Provides 32 alarm lamp driver outputs for
connection to a custom graphic annunciator. DIP switch selectable for 32 alarm outputs or 16
alarm/16 trouble outputs, and 16 switch inputs for control of system control functions as Signal
Silence and System Reset.
Refer to the LDM Series Lamp Driver Annunciator Modules manual for more information.
Lamp Driver Annunciator Expander Module - LDM-E32. Expands the LDM-32 by 32
system points, to a maximum of 64 points
.
Lamp Driver Relay Expander Module - LDM-R32. Provides the LDM-32 or LDM-E32 with
32 dry Form-A (normally open) contacts.
2.8 Annunciators
The Annunciator Control System provides the control panel with 32 remote annunciators. The
number of points a particular annunciator can support is reflected in the part number. For example,
an ACM-24AT has 24 points and an ACM-48A has 48 points. The number of points on an
Annunciator Expander Module must match the number of points on the Annunciator Control
Module it is expanding. One Annunciator Fixed Module can also be used per system. Connections
are through an EIA-485 ACS Mode connection on the Control Panel.
Note: The NFS-640 can only support 64 points per annunciator address regardless of the model
used.
Brief descriptions follow of specific modules used with the control panel. For detailed information,
refer to the specified product manual.
2.8.1 Annunciators with 24- and 48-Point Capacity
For specific installation information, refer to the Annunciator Control Module manual. For
Canadian requirements, see Appendix D “Canadian Applications”.
Annunciator Control Module - ACM-24AT. A one-channel Class-B unit with 24 switch
controlled annunciator points. Each point is controlled by a silicone-rubber switch with indicator
LED. Multi-color LEDs can be programmed to produce one of three colors: red, green or yellow.
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