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ICP-CC408 | Installation Guide | 14.0
Use caution when using split EOL
resistors to create four Burglary Zones
and four 24-Hour Zones. This
configuration is suitable only for normally-
closed (N/C) contacts. If normally-open
(N/O) contacts are used, as is the case
with most smoke detectors, a short
circuit on one zone activates both zones
connected in parallel.
If you require N/O contacts when using
split EOL resistors, refer to Figure 9 and
Figure 10 for information on how to
connect N/O contacts.
Figure 8:
Split EOL Resistors Using N/C
Contacts
1
5
4
8
1 – Zone 1
2 – Zone 2
3 – Zone 3
4 – Zone 4
5 – Zone 5
Bosch Security Systems, Inc. | 12/08 | F01U089463-02
Zone Information
9
2
9
10
6
10
3
9
9
7
10
10
6 – Zone 6
7 – Zone 7
8 – Zone 8
9 – 3K3
10 – 6K8
Figure 9: Split EOL Resistors Using One N/O
Contact
1
2
3
1 – +12 V
2 – Zone Input
3 – Zone
4 – N/C
Figure 10: Split EOL Resistors Using Two N/O
Contacts
1
2
3
1 – +12 V
2 – Zone Input
3 – Zone
4 – EOL 3K3
EN | 57
4
6
5
7
8
5 – EOL 3K3
6 – EOL 6K8
7 – EOL 4K7
8 – N/O
5
4
6
7
8
8
5 – EOL 6K8
6 – EOL 1K5
7 – EOL 4K7
8 – N/O
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