Silent Knight SD500-ARM


Addressable relay module

Availability: Estimated 6 Weeks

  • Factory New
Brand: Silent Knight Part #: 16449 Categories: , Manufacturer Part #: SD500-ARM


SD500-ARM addressable relay modules add two Form C contacts to the Farenhyt addressable system. The contacts are rated at 2A at 30V DC or 0.6A at 120V AC. SD500-ARM addressable relay modules allow you to control a wide variety of normally open and normally closed applications, including elevator recall, door closing, fan operation, and auxiliary notification. Because the relay modules are addressable, these applications can be located at any point in the signaling line circuit.


Weight 0.4 lbs
Dimensions 2.00 × 4.00 × 4.00 in

DIP Switch




Silent Knight

Production Status



  • Two sets of Form C contacts. (Double pull/Double Throw relays)
  • Contacts are rated at 2A @ 30 VDC or .6A @ 120 VAC.
  • Up to 127 relays can be used on each SLC loop.
  • Relay programming is completely flexible—can be mapped to zone conditions.
  • Polling LED visible through cover plate
  • UL listed, complies with NFPA 72.

SD500-ARM; Addressable Relay Module

Silent Knight - Data Sheet

Model SD500-ARM Relay Module File name: 151091_D.pdf

Silent Knight - Installation Instructions