FAQs
Does Napco have a voltage troubleshooting guide for the Gemini GEM-P816, GEM-P1632 and GEM-P1664 control panels?
Yes. Use a multimeter to confirm the following readings:
AC Voltage
- Terminals 1 and 2, normal voltage readings = 16.5VAC to 18VAC, transformer fused.
Burg Output Voltage
- Terminals 3 (+) and 4 (-), normal voltage out: 13.8VDC.
Aux Alarm Output
- Terminals 5 (+) and 6 (-), normal voltage out: 13.8VDC.
PGM 1 and PGM 2
- Terminals 7 (PGM1) and 8 (PGM2), both have no voltage and a negative voltage upon alarm trip.
Keypad Power
- Terminals 9 (+) and 10 (-), normal voltage out: 13.8VDC.
Keypad Data Bus
- Terminals 11 and 12, DC voltage fluctuates between 0.7VDC - 6VDC (but not above 6VDC).
Aux Power
- Terminals 13 (+) and 14 (-), normal voltage out: 13.8VDC.
Reset Relay
- Terminals 28 (+) and 14 (-), normal voltage out: 13.8VDC.
Fire power
- Terminal 28 (+) and a zone negative, normal voltage out: 13.8VDC.
Zone Voltages When Zones Doubled
2.2K resistor on = 6VDC 2.2K and 3.9K on = 5.3VDC
2.2K resistor off = 13VDC 3.9K resistor on only = 8.5VDC
2.2K resistor shorted = 0VDC
Battery charging circuit = 13.8VDC.