Silent Knight SD500-MIM Mini Addressable Input Module – Dry Contact, FACP, UL Listed

Description

The Silent Knight SD500-MIM is a compact, intelligent addressable input module designed for seamless integration with IntelliKnight Fire Alarm Control Panels (FACPs). This mini module offers reliable and supervised monitoring of a single dry contact device, such as a manual pull station or water flow switch, making it ideal for small-space installations without compromising on performance.

The SD500-MIM is engineered to fit inside a standard single-gang electrical box, offering a clean, discreet solution for fire alarm initiation. Its small footprint and lightweight design allow flexible mounting in tight or concealed locations—perfect for applications where aesthetics and space efficiency are essential.

Designed for Class B (Style B) wiring configurations, this module continuously supervises the input circuit using an End-of-Line (EOL) resistor, alerting the control panel to contact closures or open circuit faults. The unit is DIP switch-programmable for quick, reliable addressing on the Signaling Line Circuit (SLC) loop.

Key Features:

• Monitors dry contact alarm devices such as flow switches or pull stations
• Compact design fits inside single-gang electrical boxes
• DIP switch programming for fast setup
• Supervised input with EOL resistor detection
• Supports up to 2,500 feet of wiring using up to 14-gauge cable
• UL listed for code-compliant installations
• Low current draw for efficient system performance

With robust performance, easy installation, and a sleek low-profile design, the Silent Knight SD500-MIM is a versatile and dependable solution for addressable fire alarm systems in both new and retrofit applications.