Silent Knight 6820EVS


Fire Alarm Control Panel w/ Integrated Emergency Voice Communication System

Availability: In Stock

  • Factory New
Brand: Silent Knight Part #: 34215 Categories: , , Manufacturer Part #: 6820EVS


The 6820EVS is an intelligent addressable Fire Alarm Control Panel combined with an Emergency Voice System (EVS) and are direct replacements for the 5820XL-EVS FACP. When the EVS features are enabled, they are integrated with the fire alarm and voice evacuation functions of the control panel.

The emergency voice system operations include an onboard supervised microphone. All-call and non-active call buttons can quickly select all active or non-active output groups. The system also allows for emergency messages over fire.

The 6820EVS FACP has one built-in signaling line circuit (SLC), which can support 159 SK detectors and 159 SK modules, or 127 SD protocol devices. Additional SLC loops can be added for a maximum of 1110 (SK) or 635 (SD) points per panel.

The built-in digital alarm communicator/transmitter (DACT) is dual technology, IP and POTS. The POTS transmits system status (alarms, troubles, AC loss, etc.) to a Central Station via the public switched telephone network. The IP communicator’s internet monitoring capability sends alarm signals over the Internet saving the monthly cost of two dedicated business telephone lines. Although not required, the secondary telephone line may be retained providing backup communication over the public switched telephone line. Optional cellular reporting is available.

The 6820EVS has six onboard Flexput® circuits that can be configured as notification outputs or auxiliary power. The 6820EVS also has a form-C trouble relay, and two programmable form-C relays, along with powerful features such as drift compensation, pre- trouble maintenance alert, a built-in sensor test to comply with NFPA 72 calibration testing requirements, and a calibration trouble alert.

A common communications and annunciation link allows up to 17 panels to be connected via copper or fiber optic cable. A designated panel is configured as the communicator for all panels in the link for convenient single-point communications.


Weight 16 lbs
Dimensions 21.60 × 5.10 × 28.10 in



Silent Knight




Control Panel






Production Status




  • Single enclosure for both fire and emergency voice components
  • Ability to select EVS messages as priority over fire
  • 15 Recordable one-minute messages that can be mapped to eight EVS buttons
  • Capable of producing 520 Hz tones to meet NFPA 72 requirements
  • Support for up to 4 LOCs and 8 addressable amplifiers
  • Expandable SLC loops to 1110 (SK) or 635 (SD) point capacity
  • Six Flexput circuits for NAC outputs or auxiliary power
  • Selectable strobe synchronization for Amseco®, System Sensor, Wheelock®, and Gentex® devices
  • Built-in DACT with IP and optional cellular reporting
  • Built-in USB interface for quick and easy programming
  • JumpStart® auto programming reduces installation time
  • 999 software zones & 999 output groups for flexible design options
  • 23 preset notification cadence patterns (including ANSI® 3.41)
  • Allows up to 24 SBUS devices
  • Four programmable function keys
  • Two programmable relays and one fixed trouble relay
  • Compatible with SWIFT® wireless devices
  • Convenient field-upgradeable firmware
  • Network support for up to 17 sites
  • Network card allows copper network connection with a multi-mode or single-mode fiber connection
  • Real-time clock/calendar with automatic daylight savings control
  • History file with 1,000 event capacity


6820EVS: Intelligent Fire Alarm Control Panel with Emergency Voice System
6820 / 6820EVS: Installation and Operation Manual