Notifier LDM-32


Lamp Driver Module with 32 Alarm Lamp-Driver Transistors

Availability: Estimated 6 Weeks

Condition: New
Brand: Notifier
Status: Active
SKU: K02C-0697
Manufacturer Part #: LDM-32


The LDM Series lamp driver modules, when combined with a custom graphic display, provide annunciation and control for Fire Lite’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. The Lamp Driver Module LDM-32F has 32 alarm lamp/LED driver outputs which sink current to system common (–) on activation. A single positive (+) voltage is required to supply total operating power for all lamps or LEDs when all drivers are activated. The LDM-32F provides a separate driver for system trouble and inputs for a local lamp test switch. A maximum of 16 external control switches may be wired to the LDM-32F. DIP switch SW3 is used to enable or disable the on board piezo, enable remote switch functions, select a flashing LED function for new alarms and troubles, and other functions. Switch SW4 is used to configure the module to annunciate 32 alarms or 16 troubles. A green ON LINE LED flashes to indicate ongoing communications with the host FACP. One LDM-32F supports up to 3 LDM-E32F modules. The LDM-32F is supplied with 4 standoffs and screws for mounting to a CHS 4L chassis or custom back box.

Additional information

Weight 0.80 lbs
Dimensions 10.00 × 8.50 × 3.50 in





Unit of Measurement

EA (Each)

Production Status



Option Card


Driver Module





  • 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 indicating 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 conditions 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 consumption.
  • Microprocessor-controlled electronics, fully supervised.
  • Plug-in terminal blocks for ease of installation and service.
  • Trouble monitor option for remote power supplies.


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Lamp Driver Module


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