Potter PFC-7500 - Remote Station Protective Signaling Systems; Remote Annunciators; Notification Appliances; Cross Zoning

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20.5 Remote Station Protective Signaling Systems
60 hours of standby battery must be provided. Up to two 12 VDC, 7.0 Ah batteries may be used. See standby battery
calculations. The Radionics Model D127 Reversing Relay Modules may be used to provide two reversing polarity
telephone connections instead of dual phone lines. See the D127 installation instruction sheet for wiring details.
20.6 Remote Annunciators
At least one Model RA-7630 or RA-7692 Remote Annunciator must be used on the system. When using a RA-7692
keypad, install one the panel door as described in the RA-7692 installation guide.
When using a RA-7630 keypad, install the keypad using conduit within 20 feet of the panel.
20.7 Notication Appliances
The following table indicates approved 12 VDC notication appliances.
Wheelock Model No. Description No. of Appliances
MT-12/24 Multi-tone Horn 5
MB-G6-12 Bell, 6 inch 11
MB-G10-12 Bell, 10 inch 11
RSS-121575W-F Strobe, 15/75 candela 3
RSSP-121575W-F Strobe, w/retrot plate 3
NS-121575W-F Horn Strobe, 15/75 candela 3
SM-12/24-R Sync Module, Single circuit,
DSM-12/24-R Sync Module, Dual circuit
20.8 Cross Zoning
When using cross zoning, there must be a minimum of two detectors installed in each protected space and the detector
installation spacing must be 0.7 times the linear spacing in accordance with National Fire Alarm Code, NFPA 72.
20.9 Ground Fault
For supervised circuits, ground fault is detected at 0 (zero) Ohms.
California State Fire Marshal Specications
21.1 Bell Output Denition
The bell output of the Model PFC-7501 must be programmed to operate Temporal for re alarms.