20
en | Diagrams
2016.07 | 04 | F.01U.291.483
UL Installation Guide
Bosch Security Systens, Inc.
Cable
capacitance
Overall
cable
length
Cable
capacitance
Overall
cable
length
Cable
capacitance
Overall
cable
length
Cable
capacitance
Overall
cable
length
pF/ft
ft
pF/ft
ft
pF/ft
ft
pFf/ft
ft
< 17
7500
22
6363
27
5185
32
4400
18
7500
23
6086
28
5000
33
4242
19
7350
24
5800
29
4828
34
4100
20
7000
25
5600
30
4700
35
4000
21
6666
26
5385
31
4516
36
3800
Table 3.2: Maximum cable length
Notice!
Use Non-shielded cable only.
Notice!
Maximum capacitance of 140nF (140,000 pf) per system. Contact the wire manufacturer for
the capacitance ratings of the wire being used.
3.6
Keyswitch Wiring
Figure 3.12: Keyswitch Wiring
Callout - Description
1 - Maintained keyswitch
2 - Momentary keyswitch
3 - Common
4 - Point Input
5 – End of Line (EOL) resistor*
6 - Open on a circuit arms the area
7 - Short on a circuit toggles the arming state
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