Table 21: DIP switch SW2-8 settings
SW2-8 Description
0 NAC 1 is enabled (default)
1 NAC 1 is disabled
8.3 DIP switch SW3
1. You can select the EOLR value for NAC 1 by using DIP switches SW3-1, SW3-2 and SW3-3.
2. You can enable or disable Class-A wiring configuration for NAC 1 using DIP switch SW3-4.
3. You can enable or disable the NFPA NAC feature using DIP switch SW3-5.
4. DIP switches SW3-6, SW3-7 and SW3-8 are spare for future settings.
5. See the following tables for switch setting.
Table 22: DIP switch SW3-1, SW3-2 and SW3-3 settings
SW3-1 SW3-2 SW3-3 Description
0 0 0 EOLR value for NAC 1 is set to 10 KΩ (default)
0 0 1 EOLR value for NAC 1 is set to 3.9 KΩ
0 1 0 EOLR value for NAC 1 is set to 4.7 KΩ
0 1 1 EOLR value for NAC 1 is set to 5.1 KΩ
1 0 0 EOLR value for NAC 1 is set to 5.6 KΩ
1 0 1 EOLR value for NAC 1 is set to 15 KΩ
1 1 0 SPARE
1 1 1 SPARE
Table 23: DIP switch SW3-4 settings
SW3-4 Description
0 Class-A wiring configuration for NAC 1 is disabled (default)
1 Class-A wiring configuration for NAC 1 is enabled
Table 24: DIP switch SW3-5 settings
SW3-5 Description
0 NFPA NAC feature is disabled (default)
1 NFPA NAC feature is enabled
Table 25: DIP switch SW3-6, SW3-7, SW3-8 settings
SW3-6 SW3-7 SW3-8 Description
0 0 0 SPARE
page 24 579-1403 Rev A
2004 Foundation Series Fire Alarm Control Unit Operation Guide
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