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Structure and function
3
Function
3.5.4
18
Building Technologies
Fire Safety
Service indicator
The sounder interbase FDSB221 and the sounder beacon interbase FDSB229
have a yellow LED to indicate when servicing is required.
Service indicator
Behavior of LED
Mode
LED flashes
Locate
Meaning
Displays the interbase location
A6V10320090_c_en_--
02.11.2011
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