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Home Questions252 Trouble Codes688 Panels24 Panel Specs24

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Each panel page includes linked installation manuals, associated trouble codes, and specs, all cross-referenced from manufacturer documentation.

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Notifier NFS2-640 | Manuals, Trouble Codes & Resources | Fire Alarm Resource Center

Notifier

NFS2-640

The Notifier NFS2-640 is a mid-size intelligent addressable fire alarm panel supporting up to 2 SLC loops. Popular for medium-sized commercial buildings.

12 manuals35 trouble codesModels: NFS2-640, NFS2-640E, CPU-640, CPU-640E

Specifications

SLC Loops

1 (expandable to 2)

Panel Type

Addressable

NAC Circuits

4 Class B / 2 Class A

Total Points

318 / 636 (dual loop)

Network Nodes

103

Points/Loop

318 (FlashScan) / 99 (CLIP)

Battery (Ah)

7-200

Annunciator

Yes

Manuals

Programming2003

Installation2014

Installation2004

Trouble Codes

View all 35 →

ACTIVEThe status banner displays ACTIVE when a monitor module programmed with a Trouble Monitor Type Code (such as AUDIO SYSTEM or POWER MONITR) is activated. These modules monitor external system functions that produce trouble signals.ACTIVEThe system enters Supervisory mode when a monitor module point programmed with a Supervisory type code activates.TROUBL CONTROLA trouble condition occurring on a control/relay module or control/relay transponder.

Related Questions

What is the maximum device capacity on the NFS2-640 in FlashScan mode vs. CLIP mode, and can you mix protocols on the same SLC loop?How do I troubleshoot a ground fault on the NFS2-640 SLC loop?What are the NAC circuit specifications for the NFS2-640, and when do I need an external NAC booster panel?What is the difference between the NFS-640 and the NFS2-640?

All Notifier manuals →All NFS2-640 trouble codes →Ask TroubleShooter AI →

Notifier

NFS2-640

The Notifier NFS2-640 is a mid-size intelligent addressable fire alarm panel supporting up to 2 SLC loops. Popular for medium-sized commercial buildings.

12 manuals35 trouble codesModels: NFS2-640, NFS2-640E, CPU-640, CPU-640E

Specifications

SLC Loops

1 (expandable to 2)

Panel Type

Addressable

NAC Circuits

4 Class B / 2 Class A

Total Points

318 / 636 (dual loop)

Network Nodes

103

Points/Loop

318 (FlashScan) / 99 (CLIP)

Battery (Ah)

7-200

Annunciator

Yes

Manuals

Programming2003

Installation2014

Installation2004

Trouble Codes

View all 35 →

ACTIVEThe status banner displays ACTIVE when a monitor module programmed with a Trouble Monitor Type Code (such as AUDIO SYSTEM or POWER MONITR) is activated. These modules monitor external system functions that produce trouble signals.ACTIVEThe system enters Supervisory mode when a monitor module point programmed with a Supervisory type code activates.TROUBL CONTROLA trouble condition occurring on a control/relay module or control/relay transponder.

Related Questions

What is the maximum device capacity on the NFS2-640 in FlashScan mode vs. CLIP mode, and can you mix protocols on the same SLC loop?How do I troubleshoot a ground fault on the NFS2-640 SLC loop?What are the NAC circuit specifications for the NFS2-640, and when do I need an external NAC booster panel?What is the difference between the NFS-640 and the NFS2-640?

All Notifier manuals →All NFS2-640 trouble codes →Ask TroubleShooter AI →

NFS2-640

Operations2013

ONYX Series Panel Comparison

Compatibility Chart

Johnson Controls IFC/NOTIFIER

Compatibility Chart2022

Marine ONYX Systems Approved Components

Manuals That Reference This Model (41)

NFC-50/100InstallationOperationsProgramming2018 SLC WiringInstallationTechnical Reference2022 N16InstallationOperationsProgramming2025 FPC-951Datasheet2020 FSCO-951Datasheet2020 NCA-2Datasheet2021 NCDDatasheet2025 NFS2-3030Datasheet2017 NFS-320SYSDatasheet2017 VeriFire ToolsDatasheet2018 NBG-12LRDatasheet2017 NFS-320Datasheet2017 NFV-25/50DAZS Distributed Audio PanelDatasheet2010 NCM-W and NCM-FDatasheet2019 NFC-50/100Datasheet2015 VESDA-HLI-GWDatasheet2017 NCDDatasheet2021 SLC-IMDatasheet2017 ONYXWorks LiteDatasheet2017 NOTI-FIRE-NETDatasheet2017 UDACT-2Datasheet2012 IPDACT SeriesInstallation2010 DPI-232Datasheet2012 FTM-1Datasheet2011 NFN-GW-EM-3Datasheet2017 N-WEBPORTAL (French)Datasheet2017 FWSGDatasheet2018 NFC-50/100C (Canadian)Datasheet2015 FWSGDatasheet2015 TM-4Datasheet2010 ONYX SeriesBrochure2011 NBG-12WLDatasheet2018 DS-DBDatasheet2014 MODBUS-GWDatasheet2010 UZC-256Datasheet2009 NCDDatasheet2019 ONYX Series NCSDatasheet2009 BACNET-GW-3Datasheet2014 N-WEBPORTALDatasheet2017 ONYX Marine SystemsBrochure2013 N-MPS and NFW-MPS (Canadian)Datasheet2010

CO TBL

The CO element on a detector is not working properly.

DISABLA point (detector, module, or zone) has been manually disabled by a user.

FREEZE WARNINGThe temperature read by a Heat+ or Acclimate Plus™ detector has dropped below the low-temperature threshold, typically 40°F (4.44°C).

GNDFLTThere is a ground fault on the main or auxiliary power supply.

HI BATThe auxiliary power supply’s battery charge is too high.

INST ON L1No devices are installed on the system.

INVREPThe device has returned a response to the panel that the panel did not expect.

How do I perform a walk test on the NFS2-640?

NFS2-640

Operations2013

ONYX Series Panel Comparison

Compatibility Chart

Johnson Controls IFC/NOTIFIER

Compatibility Chart2022

Marine ONYX Systems Approved Components

Manuals That Reference This Model (41)

NFC-50/100InstallationOperationsProgramming2018 SLC WiringInstallationTechnical Reference2022 N16InstallationOperationsProgramming2025 FPC-951Datasheet2020 FSCO-951Datasheet2020 NCA-2Datasheet2021 NCDDatasheet2025 NFS2-3030Datasheet2017 NFS-320SYSDatasheet2017 VeriFire ToolsDatasheet2018 NBG-12LRDatasheet2017 NFS-320Datasheet2017 NFV-25/50DAZS Distributed Audio PanelDatasheet2010 NCM-W and NCM-FDatasheet2019 NFC-50/100Datasheet2015 VESDA-HLI-GWDatasheet2017 NCDDatasheet2021 SLC-IMDatasheet2017 ONYXWorks LiteDatasheet2017 NOTI-FIRE-NETDatasheet2017 UDACT-2Datasheet2012 IPDACT SeriesInstallation2010 DPI-232Datasheet2012 FTM-1Datasheet2011 NFN-GW-EM-3Datasheet2017 N-WEBPORTAL (French)Datasheet2017 FWSGDatasheet2018 NFC-50/100C (Canadian)Datasheet2015 FWSGDatasheet2015 TM-4Datasheet2010 ONYX SeriesBrochure2011 NBG-12WLDatasheet2018 DS-DBDatasheet2014 MODBUS-GWDatasheet2010 UZC-256Datasheet2009 NCDDatasheet2019 ONYX Series NCSDatasheet2009 BACNET-GW-3Datasheet2014 N-WEBPORTALDatasheet2017 ONYX Marine SystemsBrochure2013 N-MPS and NFW-MPS (Canadian)Datasheet2010

CO TBL

The CO element on a detector is not working properly.

DISABLA point (detector, module, or zone) has been manually disabled by a user.

FREEZE WARNINGThe temperature read by a Heat+ or Acclimate Plus™ detector has dropped below the low-temperature threshold, typically 40°F (4.44°C).

GNDFLTThere is a ground fault on the main or auxiliary power supply.

HI BATThe auxiliary power supply’s battery charge is too high.

INST ON L1No devices are installed on the system.

INVREPThe device has returned a response to the panel that the panel did not expect.

How do I perform a walk test on the NFS2-640?