Bosch ICP-CC408 - Figure 9: Split EOL Resistors Using One N;O; Contact; Contacts

ICP-CC408 | Installation Guide | 14.0 Zone Information EN | 57
Bosch Security Systems, Inc. | 12/08 | F01U089463-02
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
9
2 9
4
9
3
9
5
10
8
10
6 10
7
10
1 – Zone 1
2 – Zone 2
3 – Zone 3
4 – Zone 4
5 – Zone 5
6 – Zone 6
7 – Zone 7
8 – Zone 8
9 – 3K3
10 – 6K8
Figure 9: Split EOL Resistors Using One N/O
Contact
2
1
3
4
5
6
7
8
1 – +12 V
2 – Zone Input
3 – Zone
4 – N/C
5 – EOL 3K3
6 – EOL 6K8
7 – EOL 4K7
8 – N/O
Figure 10: Split EOL Resistors Using Two N/O
Contacts
2
3
1
4
5
6 7
8 8
1 – +12 V
2 – Zone Input
3 – Zone
4 – EOL 3K3
5 – EOL 6K8
6 – EOL 1K5
7 – EOL 4K7
8 – N/O