Edwards EST

EST4

The Edwards EST4 is the current generation life safety and mass notification platform from Edwards, replacing the EST3 with enhanced networking and cybersecurity features.

13 manuals24 trouble codesModels: EST4, EST4-1, EST4-2

Specifications

SLC Loops

10

Panel Type

Addressable

NAC Circuits

4 (per module)

Total Points

2,500

Network Nodes

40

Points/Loop

250

Battery (Ah)

18-200

Annunciator

Yes

Manuals

EST4

User Guide2019

EST4

InstallationOperationsProgramming2019

EST4 Remote Annunciators

Datasheet

Trouble Codes

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AlarmA life-safety emergency condition has been detected by an initiating device.A short is detected on the loopA shorted circuit has been detected on the Signature loop controller (SLC) wiring, which typically reports a trouble condition on all devices on that circuit.BuildingControlled building equipment such as dampers, fans, or temperature controls are not operating correctly.

Related Questions

How do I perform a walk test on the EST4, and can individual SLC loops be isolated for testing?What is the maximum SLC loop length and device count per loop on the EST4?What are the battery sizing requirements for the EST4, and what is the replacement procedure?How do I configure the EST4 IPv6 network for multi-panel communication?

All Edwards EST manuals →All EST4 trouble codes →Ask TroubleShooter AI →

2024

EST4 Audio Units and Interfaces

Datasheet2023

EST4

Datasheet2025

EST4 LCD Display Modules

Datasheet2025

EST4 Cabinets and Chassis

Datasheet2020

EST4 Cabinets and Chassis

Datasheet2025

EST4 Audio and Network

Application Guide2022

EST4 Remote Annunciators

Datasheet2025

EST4 Audio Units and Interfaces

Datasheet2025

Manuals That Reference This Model (1)

4-NET-XTDatasheet2020

Call In

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

CO Life Left MonthsThe Carbon Monoxide sensing element in a detector is nearing the end of its expected life.

bad type faultThis condition occurs when a substituted device is a different model than the suspect device but is preprogrammed with the same device address.

DisableOne or more system inputs or outputs have been manually disabled by a user.

Disabled ActiveThe control unit enters the trouble state when a point, module, or logic group is manually isolated from the system, preventing the processing of status change signals until it is re-enabled.

EmergencyA mass notification or non-fire emergency event has been triggered.

Ground faultThe system detects a low resistance path (approximately 10 kΩ or less) between a circuit conductor and earth ground, or voltages outside the range of 12.3 VDC to 16.8 VDC during testing.

What is the correct procedure for isolating and clearing a ground fault on an EST4 SLC loop?