Silent Knight 058950XL Interface Board.

Compliance

• UL Listed
• UL 864
• NFPA 72

Key features

• Interface board for Silent Knight 5820XL and 6500 series fire alarm control panels
• Provides expansion or accessory interface functionality within the panel enclosure
• Mounts on dedicated expansion slots in the host panel
• Designed for low standby current to minimize panel power budget impact
• Field-replaceable for service of installed SK-series fire alarm systems

The 058950XL is an interface board accessory in the Silent Knight SK-series product line (a Honeywell brand). It installs in 5820XL or 6500 series fire alarm control panels to extend panel-level interface capability for accessory connections, supplemental I/O, or releasing/communication functions depending on the specific board revision. UL 864 listing maintains the panel's compliance posture when the board is installed per the manufacturer's instructions. Reference the 058950XL compatibility matrix in the host panel service documentation to confirm panel revision and slot availability before ordering.

Verify panel/device family compatibility before ordering.