FAQs

---

< Back to FAQs

How do I connect 2-wire and 4-wire smoke detectors to an automatic gate with Gemini GEM-P3200, GEM-P9600 and GEM-X255 control panels?

When a fire alarm occurs within a premises that has a powered front entry gate, it is important for the gate to open upon a fire alarm condition to permit entry to the fire response team. Detailed below are the steps for wiring 2-wire and 4-wire smoke detectors to an automatic gate (Gemini GEM-P3200, GEM-P9600 and GEM-X255 control panels).

4-Wire Smoke Detectors:

1. Wire the Fire Power negative of the control panel {terminal 29} to the negative Power In on the smoke detector.
2. Wire the Fire Power positive of the control panel {terminal 28} to the positive Power In on the smoke detector.
3. Wire the zone positive trip wire {terminal 26} (ZONE 7) to the positive Power Out on the smoke detector.
4. Wire the zone negative trip {terminal 25} (ZONE 7) wire to the negative Power Out on the smoke detector.
5. Wire the 2.2K end of line resistor across the positive and negative Power Out terminals on the smoke detector.
6. Place the jumper for Zone 7 on the top two pins {Burg} position on the smoke detector.

 

2-Wire Smoke Detectors:

1. Wire the two-wire Fire Power negative (-) {terminal 27} (ZONE 8) to the negative terminal of the smoke detector.
2. Wire the two-wire Fire Power positive (+) {terminal 28} (ZONE8) to the positive terminal of the smoke detector.
3. Wire a 2.2K end of line resistor across the negative and positive terminals of the smoke detector.
4. Place the jumper for Zone 8 on the bottom two pins {two-wire fire} on the smoke detector
5. On the control panel motherboard, cut the jumper {A} for a dry Aux Relay.
6. Connect a wire from the common of the control panel Aux Relay {terminal 6} to the common on the gate relay.
7. Connect a wire from the normally closed of the control panel Aux Relay {terminal 7} to the gate relay active high terminal or positive terminal.
8. Program the control panel Fire Zone 7 as a 2-wire Fire (or Zone 8 as 4-wire Fire) and enable the feature Auxiliary Output in PCD-Windows Quickloader software (see image below). Note: The remaining wiring that runs from the gate to the opener and locks should be performed by the automatic gate installer.