3.2.3 Connections
The manual call points FDM223/FDM224 and FDM223H/FDM224H both have six
spring clips on the switching unit for the detector line and connecting external
alarm indicators.
Figure 5: Switching unit with spring clips
3.2.4 Indication elements
An LED is built into the switching unit FDME223/FDME224 as an internal alarm
indicator.
Figure 6: Example of a switching unit with an alarm indicator
See also
2
Internal alarm indicator [➙ 19]
Structure and function
Setup
3
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