Lamp Driver Modules—LDM Lamp Driver Modules 3
Introduction
Description
1
2
3
4
5
6
7
1
2
3
4
This document describes how to install the LDM Series
Lamp Driver with an IFC-1010/2020 Intelligent Fire
Controller, IFC-200 Intelligent Fire Controller, or an
FC-2000 Fire Controller. The Lamp Driver Module (LDM)
provides the IFC-1010/2020, IFC-200, or FC-2000 with a
direct interface to a custom graphic display. The LDM-32
(Figure 1) features 32 points for annunciation (Alarm Only
Mode operation) or 16 points of annunciation and control
(Alarm/Trouble Mode operation). It can be expanded to 64
points (for each LDM-32 address) with the addition of
optional LDM-E32 Expander Modules (Figure 1). These
Lamp Drivers turn their outputs ON and OFF as commanded
by the control panel. With custom switches installed, the
LDM can be used to report selected switch activations to the
control panel for action. Each module may be configured to
provide 32 alarm indications or alternately, 16 alarm,
16 trouble, and 16 control switch points.
An optional LDM-R32 Relay Module (Figure 1) provides 32
dry normally open contacts for electrical isolation when
connecting the control panel to other equipment. One side of
each contact is connected to a common terminal. A separate
common is provided for each group of eight relays.
The LDM-32, LDM-E32, and LDM-R32 modules mount on
four standoffs inside of the custom graphic annunciator
cabinet. Alternately, the modules can be installed in a
standard CHS-4L low-profile chassis for mounting in a
CAB-x3 series cabinet.
Communication between the CPU and the LDMs is
accomplished over a two-wire serial interface employing an
RS-485 annunciator communication trunk. Power for the
LDM is provided via a separate power circuit from a
regulated power supply inherently supervised by the LDM
(loss of power results in an annunciator communication
failure at the control panel).
