The Simplex 266-005 is a legacy interface module for older Simplex fire alarm control panels, intended for service and retrofit work on installed systems built before the current IDNet2 platform.

Compliance

• Designed for use within UL 864 listed Simplex fire alarm control panel assemblies
• NFPA 72 National Fire Alarm and Signaling Code installations
• FM Approved system context (panel dependent)

Key features

• Board-level interface component for legacy Simplex panel configurations
• Intended for repair, retrofit, and like-for-like replacement on installed systems
• Mounts in the original board position within the host panel chassis
• Supports continuity of existing fire alarm infrastructure
• Specified by Simplex part number to match the panel revision in service
• Used in commercial and institutional buildings running earlier Simplex platforms

Older Simplex panels were assembled from discrete interface and control boards on a modular chassis, with each board handling communication, monitoring, or control on conventional and early addressable circuits. Replacing a single board rather than the entire panel lets facilities extend the working life of a system that remains code compliant and avoids the cost and disruption of a platform migration.

Verify panel and device family compatibility before ordering.