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# ELS: iSE-Cobra 4

# ELS: iSE-Cobra 4

| This module is an optional [extension](/en/article/extentions-1j4jgcx/) and must be activated first.

In addition to the `webin.php` interface, GroupAlarm can also be used with the mission control system iSE-Cobra 4 via the **WDX3** interface.

For this, you have to specify a login server, generate client certificates as well as create corresponding service credentials.  
Only then can a secure connection to the ELS be established.

In addition, you must configure several keywords that are passed by the ELS and are to trigger a specific scenario. An empty keyword here means that any input from the ELS is accepted.