Siemens FS720 - Page 55

Mounting and installing extinguishing control panels
Card cage connections (1 sector exting.) FCA2046
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248
Building Technologies
A6V10210390_m_en_
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Fire Safety
2018
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08
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29
Circuitry example
Figure 30: Collective monitored input with 'Manual release' and 'Emergency hold'
● EOL resistor: 18 V voltage reference diode / bidirectional / min. 600 W (e.g.,
P6KE18CA)
● Max. line resistance, both conductors: 80 Ω
DM1103-L / DM1103-S
Device 8
4
7
R
5
1
2
1
R
5
5
V
6
4
7
R
5
1
2
1
R
5
5
V
6
1
8
V
DM1103-L / DM1103-S
Device 1
INPUT_COL_MON_1+
INPUT_COL_MON_1-