Signal Input Module – LF-SI-6105


  • Low Profile Design
  • Built-in CPU
  • Interfaces Normally Open Dry Contacts
  • ALARM FIRST! – Less than 1 second
  • Data Transfer Speed and Reliability
  • Polarized Wiring
  • LED Status Indicators
  • High Performance at Low Cost
  • Two Wire System
  • Use LF-DP-6190 for device addressing



The LF-SI-6105 Signal Input Module provides the means of connecting Direct Shorting Devices to the Fire Alarm Control Panel. The module converts a normally open contact input which could monitor and report the status of the contact to the Fire Panel.