Fire alarm technology, like all life-safety equipment, evolves over time. Components eventually reach the end of their life cycle due to factors such as parts availability, updated technology, or new regulatory requirements. Honeywell has announced product retirements and discontinuations that affect some Silent Knight fire alarm systems.
At Associated Fire Protection (AFP), our NICET-certified technicians are trained to guide you through this transition with code-compliant solutions—whether that means inspections, service, or planning for an upgrade.
Product Discontinuation: Hochiki® SD Protocol Detectors & Modules
Honeywell has discontinued the Hochiki SD line of detectors and modules, originally used on Silent Knight panels from the early 2000s until phased out in 2018.
- Impact: These devices have no direct drop-in replacement.
- Solution: Existing Silent Knight panels are capable of operating on Farenhyt IDP or SK protocols. Customers can transition by replacing Hochiki SD devices with compatible Farenhyt devices.
- Timing: The Hochiki SD line is fully discontinued as of December 31, 2023.
Product Retirement: Legacy Farenhyt Panels & Boards
Affected legacy models include:
- IFP-50
- IFP-100
- IFP-1000
- IFP-2000
- IFP-100ECS
- IFP-2000ECS
Honeywell’s updated HFSS software (version 7.0.250.0) includes an importer tool that allows programming from older SKSS systems to be converted to HFSS files, easing the migration process. Support for legacy boards will be phased out as market availability of components declines.
What Customers Should Do
If your facility has Silent Knight or Farenhyt systems listed above:
- Contact us to help you evaluate your system, to determine if you need to upgrade your devices.
- AFP will continue to support and service your system as long as parts are available.
- We recommend discussing upgrade planning now to avoid future downtime as replacement detectors are becoming harder to find.
If you have any questions, please give a call at 973-684-7250 or email us at sales@associatedfire.com
