Siemens FS20 - Page 82

Planning detector lines
Planning an FDnet detector line
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Building Technologies
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Fire Safety
2015
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7.1.9.3 Diagram for line cards with two loops
This diagram serves to verify the ↑ maximum current connection factor reserve
(MK_res) for integrated line cards operated without ↑ loop extension (FDnet).
Conditions
● Max. 126 devices per loop
● Only ↑ loops are operated on all connections.
Figure 27: ↑ Maximum current connection factor reserve (MK_res) for the operation of two ↑ loops
0
50
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5
0
O
h
m
7
5
O
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m
1
0
0
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h
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1
2
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h
m
1
5
0
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1
8
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AK
MK_res
M
K
_
l
i
m
i
t
(
2
5
0
m
A
)