Busch-Jaeger Busch-Welcome IP H8303-03 Product Manual page 26

Commissioning
Fire linkage
This function is only available on the guard unit which is set to "Security mode".
On the "Engineering settings" screen, click "Lock management", tick the "Fire linkage" checkbox
to enable the function (the system default is disabled).
Select lock open type (e.g. "Normally closed") and then click "Related area", select an
emergency unlock area and click "OK" to save.
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Product manual 2TMD041800D0020