The Simplex 6334-9803 is a legacy module for older Simplex fire alarm control panels, supporting service and retrofit work on installed systems that predate the current IDNet2 addressable 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 module 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 without a full panel swap
• Specified by Simplex part number to match the panel revision in service
• Used in commercial and institutional buildings running earlier Simplex platforms

This module belongs to the earlier generation of Simplex equipment built around a modular chassis, where individual boards carried communication, monitoring, or control functions on conventional and early addressable circuits. Sourcing the matching part number keeps the installed system aligned to its original listing and lets a facility defer a larger panel migration while the platform remains in active service.

Verify panel and device family compatibility before ordering.