Bosch FPA-5000 - Page 39

Modular Fire Panel Planning | en 39
Bosch Sicherheitssysteme GmbH System Description F.01U.028.089 | 8.0 | 2011.07
Figure 3.6 Diagram for determining the maximum achievable cable length: LSN improved elements with LSN 1500 A
0
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250
N
L [m]
1mA
3mA
4mA
1,5mA
0,7mA
2mA
2,5mA
5mA
10mA
20mA
7,5mA
a
b =254
1,25mA
0,5mA
0375mA
0,265mA
L = cable length in meters
N = number of LSN improved elements
a = Bus dynamic limit
b = maximum possible number of LSN improved elements = 254