Silent Knight EVS-VCM Supervised Voice Control Module with Microphone Input

Description

The Silent Knight by Honeywell EVS‑VCM Voice Control Module is engineered for reliable live‑voice announcements and emergency messaging within Silent Knight EVS‑Series fire alarm panel enclosures. It integrates a supervised microphone circuit that ensures continuous monitoring of the audio path and immediate fault reporting if the microphone circuit is compromised

Compatibility & Installation

• Panel Compatibility: Designed for IntelliKnight 5820XL‑EVS and 6820EVS control panels (EVS‑Series)
• Mounting: Secures onto six studs inside the EVS‑Series dead front panel—no external enclosure needed
• Wiring: Connects via the FACPs SBUS terminals; installation must follow NFPA 72 and local codes for supervised, power‑limited Class B circuits

Audio & Control Features

• Supervised Microphone: Built‑in, monitored mic input provides live communication capability; any open or short is reported as a trouble condition
• Auxiliary Audio Input/Trigger: Accepts external audio sources or trigger signals for pre‑recorded messages or priority announcements
• Control Buttons & LEDs: Front‑panel buttons for “All Call,” “Non‑Active Call,” and output group selection; status LEDs indicate “Ready to Talk,” active calls, and module health
• Low Standby Current: Draws just 70 mA idle and 100 mA in alarm, minimizing load on the FACP power supply

Flexibility & Expansion

• Remote Expandability: Supports up to three EVS‑VCM modules per FACP for multiple live‑voice stations within large facilities
• Switch Expansion: Optional EVS‑SW24 can add 24 manual call‑point switches to the EVS‑VCM for zone‑based paging selection
• Distance: Microphone and auxiliary wiring may be routed through the dead front panel; SBUS allows up to 6,000 ft from the main panel for remote placement.

Compliance & Reliability

• Standards: Installation and wiring conform to NFPA 72 and UL’s requirements for supervised voice evacuation systems
• UL Listed: Classified for use in fire alarm applications; backed by Honeywell’s support and warranty.
• Robust Construction: Conformal‑coated circuitry and supervised wiring ensure false‑alarm resistance and durability in critical life‑safety roles.