Silent Knight

5820XL

The Silent Knight 5820XL (IFP-1000) is an addressable fire alarm panel supporting 1 SLC loop. Widely used in small to medium commercial applications.

20 manuals24 trouble codesModels: 5820XL, SK-5820XL, 5820, IFP-1000, IFP-1000VIP

Specifications

SLC Loops

1 (expandable to 4)

Panel Type

Addressable

NAC Circuits

6 Class B / 3 Class A

Total Points

396 (SK) / 508 (SD Hochiki)

Points/Loop

99 (SK) / 127 (SD Hochiki)

Battery (Ah)

7-35

Annunciator

Yes

Manuals

IFP-1000

InstallationOperationsProgramming2007

5820XL

InstallationOperationsProgramming2013

5820XL and 5820XL-EVS

Trouble Codes

View all 24 →

System Power (Flashes)The panel has lost primary AC power and is running on battery backup.Auxiliary Power TroubleA fault has been detected on the auxiliary power output circuit.BATTERY LOWThe system has detected that the standby battery voltage is below the acceptable threshold, indicating the batteries are depleted or failing to hold a charge.

Related Questions

What does 'KEY BUS TROUBLE' mean on the 5820XL and how do I resolve it?What is the difference between SK protocol and SD protocol on the 5820XL, and can they be mixed?How do I perform a walk test on the Silent Knight 5820XL?What are the NAC circuit specifications for the 5820XL?

All Silent Knight manuals →All 5820XL trouble codes →Ask TroubleShooter AI →

InstallationOperationsProgramming2017

5820XL

InstallationOperationsProgramming2007

Manuals That Reference This Model (135)

6820Datasheet2022 5496Datasheet2017 6820EVSDatasheet2022 SK-PHOTO-W SeriesDatasheet2018 6820Datasheet2018 5880Datasheet2018 6820EVSDatasheet2020 EVS-100WDatasheet2018 EVS-50W AmplifierDatasheet2017 ECS-125WDatasheet2014 EVS-50W AmplifierDatasheet2018 SD500-AIM and SD500-MIMDatasheet2016 5860InstallationQuick Start2014 5895XLInstallationOperations2018 SD500-AIM and SD500-MIMDatasheet2008 Addressable Pull StationsDatasheet2015 ECS-RCUDatasheet2015 IDP-Photo DetectorsDatasheet2008 5860 and 5860RDatasheet2017 IDP-Heat DetectorsDatasheet2008 EVS-INT50WInstallation2015 SK-RELAY-6Datasheet2017 5660InstallationOperationsProgramming2016 EVS-RCU Command UnitDatasheet2015 IDP-Zone-6 ModuleDatasheet2009 SK-PULL-SA and SK-PULL-DADatasheet2017 IDP-Pduct Duct DetectorsDatasheet2008 SK-ISODatasheet2017 SSB224BI Isolator BaseDatasheet2009 IDP-6AB & SSB501 BasesDatasheet2009 SD500-ARMQuick Start SK-DUCTDatasheet2017 IDP-ISODatasheet2015 ECS-50WDatasheet2014 SD500-ARMDatasheet2017 RA-1000Datasheet2014 IFP-FFT Telephone SystemDatasheet2015 IPGSM-4GDatasheet2013 IFP-100VIP Voice PanelDatasheet2006 5496Datasheet2013 IDP-Control-6 ModuleDatasheet EVS-INT50WDatasheet2015 EVS-RVMInstallation2013 IDP-Control ModuleDatasheet EVS-125W AmplifierDatasheet2018 SK-MON-10Datasheet2017 5865-3 and 5865-4Datasheet2017 SK-MINIMONDatasheet2017 SD505-6SBInstallation2008 SK-ZONEDatasheet2017 EVS-VCMInstallation2013 SD500-ANMDatasheet2017 IDP-Acclimate DetectorDatasheet2008 EVS-LOCInstallation2017 IDP-Monitor ModuleDatasheet2009 SK-CONTROL-6Datasheet2017 SD500-LEDDatasheet2013 SK-CONTROLDatasheet2017 VIP-50Datasheet2010 B200SRDatasheet2015 SK-F485CDatasheet2017 IDP-Pull-SA and IDP-Pull-DADatasheet2013 SK-Relaymon-2Datasheet2015 SD500-LEDDatasheet2001 IDP-Minimon MonitorDatasheet 5895XLDatasheet2018 5880 SeriesDatasheet2015 SK-FFTDatasheet2019 IDP-Zone Interface ModuleDatasheet RA-100Datasheet2014 SSB224RB Relay BaseDatasheet2009 IDP-Monitor-10 ModuleDatasheet IDP-Beam DetectorsDatasheet2008 SD505-6IBDatasheet2010 Farenhyt SeriesBrochure2011 SK-ZONE-6Datasheet2017 5815XLDatasheet2018 SD500-SDMDatasheet2017 SK-MONITOR-2Datasheet2017 IDP-BeamDatasheet2015 IDP-RelayDatasheet2015 IDP-Relay-6 Relay ModuleDatasheet IDP-MonitorDatasheet2015 B224BIDatasheet2013 5824Datasheet2019 EVS-LOC Operator ConsoleDatasheet2017 IDP-Monitor-2 ModuleDatasheet SSB501BHT Sounder BaseDatasheet2006 EVS-125W AmplifierDatasheet2017 IDP-ZoneDatasheet2015 IFPN-NIONDatasheet2006 SD505-ADHDatasheet2001 SD500-ARMDatasheet2010 IDP-Control-6Datasheet2015 SK-MONITORDatasheet2017 IDP-Iso Isolator ModuleDatasheet2009 SD500-LIMDatasheet2011 SK-RELAYDatasheet2017 IFP-NETBrochure2004 5760 and 5670InstallationOperations2016 IDP-RELAYMON-2Datasheet2015 5883Datasheet2017 ECS-DUAL50WDatasheet2014 IDP-IonDatasheet2013 IFP-Net-3Datasheet2013 IDP-FIRE-CODatasheet2015 SK-IP-2 and SK-IP-2UDDatasheet2014 IDP-Monitor-10Datasheet2013 IDP-Photo, IDP-Photo-T and IDP-PhotoRDatasheet2015 SD505-DUCTRDatasheet2011 IDP-AcclimateDatasheet2015 VIP-125Datasheet2011 SD500-LIMDatasheet2017 IDP-Monitor-2Datasheet2015 IFPN-ROUTMB and IFPN-4WRMBDatasheet2006 PLEX-1 and PLEX-2Datasheet2004 SSDNR and SSDNRWDatasheet2009 IDP-MinimonDatasheet2015 SK-F485CInstallation2012 IDP-Relay Relay ModuleDatasheet IFP-NETULDatasheet2006 ECS-RPUDatasheet2015 IDP-Zone-6Datasheet2015 SD500-ANMDatasheet2004 IDP-Ion Smoke DetectorDatasheet2008 IDP-Relay-6Datasheet2015 SK-FFTDatasheet2013 ECS-INT50WDatasheet2015 IDP-ControlDatasheet2015 SD505-DUCTDatasheet2011 B224BIDatasheet2017 5815XLDatasheet2013 EVS-CE4Installation2013 B224RBDatasheet2013 SK-F485CDatasheet2012

Battery voltage low

The system has detected that the battery voltage is below the required threshold for reliable operation, typically less than 85% of its rating.

DBL ADDRAn address has been assigned to more than one detector on the SLC loop.

Detector troubleA smoke or heat detector is reporting a fault condition to the panel.

Point disabledA point or circuit has been manually deactivated, preventing it from initiating or responding to alarms.

GROUND FAULTAn earth ground fault occurs when the panel senses an unexpected flow of current from one or more of its terminals to the earth connection (Terminal 2).

MissingSLC devices are not being recognized by the control panel, indicating a communication failure with a programmed device.

Notification troubleA fault (open or short) has been detected on a Notification Appliance Circuit (NAC).

How do I troubleshoot a ground fault on the Silent Knight 5820XL?