Bosch DCN Next Generation Operation Manual page 70

70 en | Planning
Figure 4.4: Power correction graph
Graph
The power correction graph corrects the power level to compensate for the extension cables.
Do as follows:
1.
2.
3.
4.
The intersection of both values gives the necessary power from the socket. In this example it
is 53 W.
2013.11 | V2.0 | DCN-NG_OM_V4.x
85
80
75 81
70
76 84
65
70 78
60 65 72
55 60 66
50 54 60
45 49 54
40 43 48
35 38 42
30 32 36
25 27 30
20 21 24
15 16 18
10
11 12
5
6 6
0 20 40
DCN-CCU2, DCN-CCUB2, DCN-EPS
Find the total power consumption (as explained in the previous chapter 'Total power
consumption') on the vertical axis (Y) of the power correction graph. For example, 40 W.
Find the length of the longest extension cable sequence on the horizontal axis (X) of the
power correction graph. For example, 60 m.
The intersection of both values gives the necessary power from the socket. In this
example it is 53 W.
The maximum power from a DCN socket of the central control unit or the extension
power supply, is 85 W. The necessary power from the socket should not exceed this. This
example with only 53 W is therefore within the system limits.
80
73 82
66 75
85
60 67 83
77
53 60 73 80
68
46 52 64 70
60
40 45 51 55 60
33 37 42 46 50
26 30 34 36 40
20 22 25 27 30
13 15 17 18 20
6 7 8 9 10
60 80 100 120 140
Operation Manual
Conference System
76 84
65 72 80
75
54 60 66 85
60
43 48 53 68
32 36 40 45
34
21 24 26 30
11 12 13 15
160 180 200 220 240 250
X: Extension cable (m)
Bosch Security Systems B.V.
73
51 55
36
17 18