Siemens FDOOT221 Technical Manual page 100

4BMounting / Installation
5
49BDetector lines
100 | 138
Building Technologies
Fire Safety
Variant B
NOTICE
No approval
Without the base adapter, the connection according to variant 'B' is not permitted
for FDOOT241-A9.
● For FDOOT241-A9, the base adapter FDB229 must be used.
1. Connect the positive pole of the external alarm indicator to the positive pole for
the external alarm indicator on the detector.
2. Leave the negative pole for the external alarm indicator on the detector
unoccupied.
3. Connect each of the two negative poles of the external alarm indicator
separately to both negative poles of the detector line.
The two negative connections of the external alarm indicator are decoupled
externally in the alarm indicator by diodes.
4. Connect the shielding of the detector line with the shielding of the connection
cable to the external alarm indicator with an auxiliary terminal DBZ1190-xx.
007004_t_en_--
2015-11-04