EST4 Fire Alarm Questions | Fire Alarm Resource Center

How do I perform a walk test on the EST4, and can individual SLC loops be isolated for testing?

The EST4 uses Service groups to perform testing on alarm input devices without placing the entire system into alarm. This allows you to isolate specific areas...

Edwards Est EST4Answered2mo ago165 views

How do I configure the EST4 IPv6 network for multi-panel communication?

EST4 multi-panel communication is established by physically connecting nodes via SFP network controllers and configuring their unique MAC addresses within the...

Edwards Est EST4Answered2mo ago97 views

When replacing an EST3 with an EST4, can the existing backbox and wiring be reused?

Yes, EST4 is designed for backward compatibility with EST3 infrastructure. You can reuse existing 3-CAB series backboxes and most field wiring, including...

Edwards Est EST4Answered3mo ago59 views

How do I set up IP-based communicator reporting on the EST4 to a central station receiver?

To set up IP-based reporting on an EST4 system, you must configure the IP Receiver service using a 4-FWAL2 or 4-FWAL4 firewall module [1] (Page 116). This...

Edwards Est EST4Answered3mo ago69 views

What is the maximum SLC loop length and device count per loop on the EST4?

The EST4 signaling line circuit (SLC) supports a maximum of 250 addresses per loop, consisting of 125 detectors and 125 modules (Page 11) [1]. While the...

Edwards Est EST4Answered3mo ago158 views

How does the EST4 drag-and-drop programming tool differ from the EST3 programming workflow?

The EST4 Configuration Utility (CU) replaces the manual look-up tables and compilation requirements of the EST3 with a graphical tree view that matches the...

Edwards Est EST4Answered3mo ago67 views

What are the battery sizing requirements for the EST4, and what is the replacement procedure?

EST4 battery sizing is determined by calculating the total standby and alarm loads, adding a 20% safety factor, and selecting matched batteries (same...

Edwards Est EST4Answered3mo ago140 views

What are the most common EST4 trouble codes displayed during initial commissioning?

Common EST4 trouble codes during initial commissioning typically involve database synchronization, module placement, and network connectivity. Key codes...

Edwards Est EST4Answered3mo ago52 views

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

To isolate a ground fault on an EST4 Signature loop, use a systematic split-and-search method to narrow the location to a specific wire segment or device. The...

Edwards Est EST4Answered3mo ago80 views

How do I migrate an existing EST3 system configuration to an EST4, and which EST3 devices are forward-compatible?

To migrate an existing system, configuration data is transferred from the EST3 project to the EST4 platform using the Configuration Utility (CU) (Page 5) [1]....

Edwards Est EST4Answered3mo ago63 views

Edwards EST EST4 Questions