Notifier LDM User Manual download pdf

DN-0551:B1 • 06/24/11 — Page 1 of 2

LDM

Lamp Driver Modules

Annunciator Control Systems

DN-0551:B1 • D-110

General

The LDM Series lamp driver modules, when combined with a

custom graphic display, provide annunciation and control for

Notifier’s intelligent fire alarm control panels. These modules

use a serial communications interface, and may be located up

to 6,000 feet from the panel.

Features

• ALARM/CIRCUIT ON and TROUBLE lamp/LED per-point

option, or more dense alarm-only option (field selectable).

• Control switch option for remote control per point.

• Lamps/LEDs may be programmed to display status of indi-

cating circuits or control relays as well as system status

conditions.

• System trouble lamp/LED signal.

• On-line/power LED indicator.

• Alarm and trouble resound with flash of new conditions.

• Local sounder for both alarm/circuit-on and trouble condi-

tions with silence/acknowledge switch connection.

• Serial EIA-485 interface for reduced installation costs.

• May be powered by 24 VDC from the panel or by remote

power supplies.

• Efficient switch-power converter reduces power consump-

tion.

• Microprocessor-controlled electronics, fully supervised.

• Plug-in terminal blocks for ease of installation and service.

• Trouble monitor option for remote power supplies.

Construction

Two basic models are available; the LDM-32 control module

and the LDM-E32 expander module. Each may be selected to

provide 32 alarm indications; or 16 alarm, 16 trouble, and 16

control points.

Applications

The LDM-32/LDM-E32 with a custom graphic array may be

used to indicate point status and, in some versions, to control

the state of output points.

In addition, the LDM-R32 module may be used to provide 32

dry-contact relays for electrical isolation when connecting the

system to other equipment.

Installation

The LDM-32 and LDM-E32 modules mount on four standoffs

inside the custom annunciator graphic box. Alternately, the

modules may be installed in a CHS-4L chassis. The module

size is approximately 4.4” (11.2cm) x 7.1” (18cm).

Communications between the LDM Series annunciators and

the host FIre Alarm Control Panel are made through a

two-wire EIA-485 multi-drop loop, and a two-wire regulated 24

VDC power loop. Up to 32 LDM systems may be connected to

a single control panel.

All field-wiring terminations use removable, compression-type

terminal blocks for ease of installation, wiring, and circuit test-

ing.

Operation

LDM Series modules, when used with a custom graphic

annunciator, provide the Notifier’s intelligent fire alarm control

panels with up to 32 unique or redundant annunciators, each

with a capacity of 64 points for a total capacity of 2048 points.

Local or remote power supplies and serial communications

allow the custom annunciators to be located anywhere on the

protected premises.

AM2020/AFP1010 system alarm and/or trouble conditions

may be annunciated on a per-point basis, or in a grouped-zone

configuration.

AFP300/400 system panel points, intelligent addressable

devices and software zones can be annunciated/controlled in

a grouped fashion (see programming manual for details).

Control of system operational controls, such as Signal Silence,

System Reset, and local annunciation controls (such as Local

LDM-32

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Summary of Contents

Page 1 - Lamp Driver Modules

DN-0551:B1 • 06/24/11 — Page 1 of 2LDMLamp Driver ModulesAnnunciator Control SystemsDN-0551:B1 • D-110GeneralThe LDM Series lamp driver modules, when

Page 2 - Made in the U.S. A

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