Siemens FDSB221

Structure and function
3
Function
18
Building Technologies A6V10320090_c_en_--
Fire Safety 02.11.2011
3.5.4 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 Meaning
LED flashes Locate Displays the interbase location