Bosch FPA-5000 System Information Manual page 33

Modular Fire Panel
L [m]
3200
a
3000
2800
2600
2400
2200
2000
1800
1600
1400
1200
1000
800
600
20mA
300mA
400
200
0
0 5 10 15
Figure 3.3: Diagram for determining the maximum achievable cable length: LSN classic elements with LSN 1500 A
L =
N =
a =
b =
Bosch Sicherheitssysteme GmbH
1,25mA
10mA 7,5mA 5mA
20 25 30 35 40 45 50
cable length in meters
number of LSN classic elements
3000 m limit
maximum possible number of LSN classic elements = 127
4,5mA
4mA
55 60 65 70 75 80 85
System Information
Planning | en
1,5mA
3,5mA 3mA
2,5mA
90 95 100 105 110 115 120 125 130
09.2017 | 11.3 | F.01U.028.089
33
b = 127
0,4mA
0,7mA
1mA
2mA
N