Silent Knight sk-6820 Fire Alarm Control Panel 1110-point

Product Description

The SILENT KNIGHT sk-6820 is an intelligent addressable fire alarm control panel (FACP) designed for large-scale fire detection and notification systems. It serves as a direct replacement for the 5820XL FACP and expands on that platform with increased point capacity. The panel ships with one built-in signaling line circuit (SLC) capable of supporting up to 159 System Sensor SK-protocol detectors and 159 SK modules per loop, or up to 127 Hochiki SD-protocol devices. Additional SLC loops can be added to reach a maximum of 1110 addressable points using SK protocol, or 635 points using SD protocol. Licensed fire alarm technicians perform the installation and programming.

The sk-6820 is suited for commercial and large residential applications where high point counts, protocol flexibility, and panel expandability are required. It is a drop-in replacement for existing 5820XL installations, making it an efficient upgrade path without requiring a full system redesign. System integrators and fire alarm contractors working on new construction or retrofit projects will find the panel compatible with both System Sensor SK and Hochiki SD device ecosystems on the same platform.

Key Features

• One built-in SLC loop standard, expandable to support up to 1110 addressable points (SK protocol)
• Supports 159 System Sensor SK detectors and 159 SK modules per SLC loop
• Supports up to 127 Hochiki SD-protocol devices per SLC loop
• Direct replacement for the Silent Knight 5820XL FACP
• Dual-protocol flexibility — SK and SD protocol device support on the same panel platform
• Expandable SLC architecture for scalable system growth

Compatibility

The sk-6820 is a direct replacement for the Silent Knight 5820XL FACP. It supports System Sensor SK-protocol detectors and modules, as well as Hochiki SD-protocol devices.

Installation Notes

Installation must be performed by a licensed fire alarm technician in accordance with NFPA 72 and all applicable local codes. Disconnect all power sources, including battery backup, before servicing or wiring the panel. Follow the manufacturer's installation manual for SLC loop wiring topology and device address programming. Do not exceed the rated point capacity per loop as specified in the product documentation.

Technical Specifications

• Maximum Addressable Points (SK Protocol): 1110
• Maximum Addressable Points (SD Protocol): 635
• Built-In SLC Loops: 1
• SK Detectors per Loop: 159
• SK Modules per Loop: 159
• Hochiki SD Devices per Loop: 127

Standard Information

• Brand: SILENT KNIGHT
• Manufacturer Part Number: sk-6820