Control Panelverified
FlexES Control FX2
Two-slot FlexES Control fire alarm control panel supporting two esserbus or esserbus-PLus loops.
ESSER by Honeywell
Official sources checkedFire alarm control equipment documented in Honeywell's ESSER product and technical libraries.
- Reviewed products
- 5
- Panel records
- 3
- Verified faults
- 7
- Reviewed parts
- 0
Official resource links last checked July 19, 2026.
Manufacturer overview
Documented engineering coverage
Incognito records the manufacturer identity, official resources and supported product families shown on this page. Coverage confirms catalogue evidence only. It does not imply manufacturer approval, product compatibility or access to restricted support.
- Product categories
- Fire detection
- Typical engineering use
- Fire alarm control panels, technical documentation, product lifecycle notices
- Known names
- ESSER by Honeywell, ESSER, Esser Systems
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Products supported by Incognito
Documented product families
Lifecycle labels are shown only when a current official page or manufacturer lifecycle notice supports the classification. All other product names remain unclassified.
Lifecycle not classified
IQ8Control CNo lifecycle claim made
IQ8Control MNo lifecycle claim made
FlexES ControlNo lifecycle claim made
Source reviewed technical data
Structured product records
These records expose only supported specifications and retain missing values rather than filling them by assumption.
Loop Cardverified
FX808331 Loop Card
Hot-pluggable, automatically recognised loop module for FlexES Control, supporting esserbus and powered esserbus-PLus operation.
Networking Productverified
FX808340 essernet Network Module 62.5 kBd
Hot-pluggable 62.5 kBd essernet network module for FlexES Control, supporting a fault-tolerant ring of up to 16 network nodes.
Networking Productverified
FX808341 essernet Network Module 500 kBd
Hot-pluggable 500 kBd essernet network module for FlexES Control, supporting a fault-tolerant ring of up to 31 network nodes.
Repeater Panelverified
GMT 4000 Repeater Panel
RS485 repeater panel for parallel display and operation of FlexES Control and IQ8Control systems.
Direct from the manufacturer
Official resources
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Product catalogueOfficialLink checked
ESSER fire alarm panels
Published by Honeywell
Incognito summary
Use this official Honeywell resource as a primary route to products information. Confirm that any document or download matches the installed product, revision and local project requirements before relying on it.
- Useful for
- checking current product information, variants and manufacturer supplied downloads
- Intended audience
- design, installation, commissioning and maintenance engineers
- Product range covered
- ESSER by Honeywell product and support resources
- Companion knowledge
- ArticleFault recordsFAQsTroubleshooting
Checked Jul 30, 2026Open official resource
Documentation, videos and downloads remain the property of their respective manufacturers.
Incognito technical guidance
Related articles and guides
Source reviewed records
Related fault records
FlexES Control • 24Detector cannot correctly control its base boardAfter the detector loop is switched on, Störungscode 24 means that an automatic detector cannot correctly control its base board. A base relay PCB may not be reliably controlled, so required event control can fail. System 8000 BMZ8008, BMZ8000C and BMZ8000M are explicitly not affected.IQ8Control M • 24Detector cannot correctly control its base boardAfter the detector loop is switched on, Störungscode 24 means that an automatic detector cannot correctly control its base board. A base relay PCB may not be reliably controlled, so required event control can fail. System 8000 BMZ8008, BMZ8000C and BMZ8000M are explicitly not affected.IQ8Control C • 24Detector cannot correctly control its base boardAfter the detector loop is switched on, Störungscode 24 means that an automatic detector cannot correctly control its base board. A base relay PCB may not be reliably controlled, so required event control can fail. System 8000 BMZ8008, BMZ8000C and BMZ8000M are explicitly not affected.FlexES Control • 98/99SYSTEMSTÖRUNGThe FlexES Control local essernet receive buffer has reached 100 percent because one or more network participants have not acknowledged telegrams despite retries. FAQ 1001 treats codes 98 and 99 as one combined condition; they are not split by this migration.FlexES Control • RF-StörungRF-Störung (RF fault)An IQ8Wireless participant has a radio communication fault. FAQ 1010 directs the engineer to inspect preceding Batt < 30 and Batt < 7 indications as evidence of depleted batteries; those indications are references only and are not imported as standalone faults here.IQ8Control C • RF-StörungRF-Störung (RF fault)An IQ8Wireless participant has a radio communication fault. FAQ 1010 directs the engineer to inspect preceding Batt < 30 and Batt < 7 indications as evidence of depleted batteries; those indications are references only and are not imported as standalone faults here.
Engineer questions
Related FAQs
No FAQ for this manufacturer has completed source review. Search remains available without presenting unreviewed answers as verified guidance.
Technical guidance boundary
Use the exact current manufacturer document for the installed model and revision. Confirm the site configuration, cause and effect, fire strategy, applicable standards and safe isolation procedure before taking action. Incognito does not claim manufacturer endorsement or guarantee a diagnosis.
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