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Call Insupervisory

Edwards EST EST4: Call In

Edwards EST EST4·0 views·0 field notes

What This Code Means

A firefighter telephone handset has been plugged into a remote phone jack.

Common Causes

  • 1Firefighter attempting communication
  • 2Testing of the phone circuit

Resolution Steps

Acknowledge the call at the main command center and establish communication or remove the handset to clear the event.

Manual References(2)

Field Notes

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Related Codes

Insufficient voltageThe power supply voltage has dropped below the minimum operating threshold.Low impedanceThe circuit resistance is lower than expected but not a direct short.Load deficiencyThe power supply has detected that the batteries cannot support the required system load.Power offThe system has lost primary AC power and is running on battery backup.Maintenance Not CleanAn addressable smoke detector has reached a contamination level of 80% or greater and is at high risk of false alarm.

Related Questions

What are the battery sizing requirements for the EST4, and what is the replacement procedure?How many addressable devices can an EST3 node support, and what cards provide the SLC loops?How do I decode an EST3 trouble address like '03030681'?
All EST4 trouble codesEST4 panel page