Siemens FS20 - Page 84

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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7.1.9.5 Diagram for line cards with eight stubs
This diagram serves to verify the ↑ maximum current connection factor reserve
(MK_res) for ↑ line cards on which eight ↑ stubs are operated. The following line
cards are affected by this:
● Integrated line card with ↑ loop extension (operation of eight stubs)
● Line card (FDnet/C-NET) FCL2001-A1 (operation of eight stubs)
Conditions
● Max. 31 devices per stub
● Only stubs on all connections
Figure 29: ↑ Maximum current connection factor reserve (MK_res) for the operation of eight stubs
0
20
40
60
80
100
120
140
160
0
MK_res
AK
5
10
15
20
25
30
M
K_
l
i
m
i
t
(
6
3
m
A
)
2
4
0
O
h
m