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10.17 Notification Appliance Circuits and Control Circuits
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An open, ground-fault, or short-circuit fault on the installation conductors of one alarm notification appliance circuit shall not affect the operation of any other alarm notification appliance circuit for more than 200 seconds regardless of whether the short-circuit fault is present during the normal or activated circuit state.
Control circuits used for the purpose of controlling NAC extender panels shall comply with all of the following:
- The NAC extender panel(s) connected to the control circuit shall not serve more than one notification zone
- The control circuit shall be monitored for integrity in accordance with Section 12.6.
- A fault in the control circuit installation conductors shall result in a trouble signal in accordance with Section 10.15.
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