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Loop is too long or attenuation too high
trouble

ESSER FlexES

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What This Code Means

Signal strength is too low due to excessive loop length or high cable resistance.

Common Causes

  • 1Loop length exceeds maximum limits
  • 2Incorrect cable type used (e.g., non-IBM or non-transmission cable)
  • 3High resistance connections

Resolution Steps

Verify loop length and resistance (max 70-100 ohms/km depending on cable); reduce length or upgrade cable if necessary.

Manual References(1)

Field Notes

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Related Codes

essernet connection interruptionA break or wiring error has been detected in the essernet communication loop.Tamper contactThe tamper contact is used to monitor whether the control panel's housing has been opened and can be used to automatically deactivate components for servicing.Wrong address settingThe essernet module has detected an invalid or conflicting address configuration after a restart.EARTH FAULTThe system has detected an unintended connection to ground or an incorrect configuration of the earth fault detection jumpers on multiple power supply modules.Battery FaultThe FACP indicates a fault when battery resistance is too high, voltage drops below the discharging limit, or a connection/fuse issue is detected.

Related Questions

How do I reset a fault condition on the Esser FlexES panel after replacing a detector on the loop?What do the common FlexES error codes mean, such as Loop Fault, Short Circuit, and Device Not Responding?What is the procedure for performing a walk test on the FlexES panel to verify detector and module operation?
All FlexES trouble codesFlexES panel page