Silent Knight 4XLM LED Interface Module (Sk-4 Only)

Optimize your fire and security annunciator subsystem with the Silent Knight by Honeywell 4XLM LED Interface Module. This LED interface module is engineered to deliver dependable supervised annunciator monitoring for SK-4 control panels, helping security and facilities teams quickly detect open circuits or wiring faults. The plug-in design mounts directly to the control panel J8 option connector, streamlining installation and minimizing downtime during upgrades or service.

With power-limited outputs rated at 27.6V and 8 mA, the 4XLM protects LED indicators and connected wiring while supporting code-compliant operation in commercial fire alarm and security environments. Compatibility with Fire‑Lite RZA-4X/F remote annunciators makes it a versatile choice for integrated monitoring, surveillance, and notification systems. Its low-profile, board-mounted form factor keeps cabinets organized and simplifies field replacement.

Ideal for security integrators, building engineers, and monitoring centers, the Silent Knight 4XLM enhances annunciator reliability and system maintainability. Add this LED interface to your control panel setup to improve fault detection and streamline servicing—contact sales or order today to upgrade your annunciator capabilities.

• Simplifies annunciator integration with a plug-in J8 mainboard mount, reducing installation time and field labor
• Provides continuous supervised annunciator wiring to detect opens and faults for reliable monitoring
• Power-limited 27.6V/8 mA outputs protect LED indicators and meet safety/code requirements
• Designed for Silent Knight SK-4 control panels and compatible with Fire‑Lite RZA-4X/F remote annunciators for unified security systems
• Compact, board-mounted LED interface keeps control cabinets tidy and speeds maintenance