CF-06-49- Class D Pathway A pathway shall be designated as Class D when it has fail-safe operation, where no fault is annunciated, but the intended operation is performed in the event of a pathway failure The 120 vac circuit doesn’t require supervision due to the fact...
CF-06-48- Section 6-7- Other Pathways Class C Pathway A pathway shall be designated as Class C when it performs as follows: (1) It includes one or more pathways where operational capability is verified via end-to-end communication, but the integrity of individual...
CF-06-47- Low Power Radio Reception of any unwanted (interfering) transmission by a retransmission device (repeater) or by the main receiver/control unit, for a continuous period of 20 seconds or more, shall cause an audible and visible trouble indication at the main...
CF-06-46- Low Power Radio The occurrence of any single fault that disables transmission between any low-power radio transmitter and the receiver/control unit shall cause a latching trouble signal within 200 seconds A single fault on the signaling channel shall not...
CF-06-45- Low Power Radio The low-power radio transmitter shall be specifically listed as using a transmission method that is highly resistant to misinterpretation of simultaneous transmissions and to interference (e.g., adjacent channel interference) A common...
