
PR-125 Dot
Matrix Printers
Graphic Annunciators  *  Water Leak Detection 
Fireman’s Smoke Control Panels * ARA Systems 
109 Portwatch Way Wilmington, N.C. 28412 Phone: (800) 251-2512 Fax: (800) 251-9878 
Internet: www.ledinc.com Email: sales@ledinc.com 
Models
  PR-125PD Printer - Standard
  PR-125PD/WC - Wide Carriage 
Compatible Systems
  Cerberus XL-3 - With Interface 
  Cerberus MXL 
  KIDDE Pega Sys. 
  Fenwall Net 2000 
  Fire●Lite MS 9200 
  Consult factory about compatibility with
   other systems
Model PR-125
PR
SERIES 
General Description
The PR-125 Printer provides an additional means of obtaining a permanent record of the fire control system’s 
Alarm and Trouble events. The model PR-125 is an impact dot matrix printer. It features a 9-pin head that 
prints up to 240 CPS. The narrow cartridge includes a push/pull tractor and a “0” form tear off. Parameters for 
form length, character pitch, fonts and spacing are easily selected by pressing the corresponding switches on 
the front panel. This printer can be used in a wide variety of applications.
The PR-125 can be set up to operate from the parallel data, serial data, or MA. loop input. The required interface for your application is installed at the factory. The unit is shipped with cables and instructions, ready to 
operate.
NOTE: The PR-125 Printer can NOT be used with the Cerberus XL-3 fire control panel unless: 
A. The printer loop supervision feature is disabled, OR; 
B. Use the model LI-125 interface to provide the proper printer control commands.
For additional technical data, please refer to the operations manual.
For other applications and information concerning cables, restrictions, or peripheral devices such as modems 
and loop converters, please consult factory.