![](/images/new-backgrounds/1304956/30495619x1.webp)
Power, Battery, & Ground Wiring
Power Wiring
✦NOTE: DO NOT APPLY POWER UNTIL THE INSTALLATION IS COMPLETE.TURN MASTER POWER SWITCH OFF BEFORE WIRING.
1.Route two wires between the AM3Plus and the power transformer.
• For power wire runs up to 100 feet, use 18 AWG,
• For power wire runs up to 200 feet, use 16 AWG,
2.Connect the wires to the transformer. Connect the other end of the wires to the AM3Plus AC1 & AC2 terminals.
Backup Battery
Use of battery backup is optional. It will allow the AM3Plus to operate for short periods of time without AC power. The door or gate access device must use some type of battery backup of its own for the entire system to be functional.
Use a
✦NOTE: A backup battery is not required to maintain the AM3Plus clock/calendar and programming memory during power outages.
1.Route two battery leads between the AM3Plus and the backup battery.
2.Connect the Battery positive to the AM3Plus BAT+ terminal and the negative to the BAT- terminal.
✦NOTE: The AM3Plus supplies battery charging current. An external battery charger is not required to maintain the battery.
Earth Ground
For the best ground, use size 12 gauge solid wire or larger to connect the to an
1.Connect the wire from the earth ground to the AM3Plus EARTH GROUND terminal.
POWER
TERMINALS
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| 16 VAC |
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| 20 VA |
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| TRANSFORMER |
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| BATTERY |
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| TERMINALS |
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| BAT BAT |
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| NOTE: THE AM3PLUS | |
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| WILL SUPPLY CHARGING | |
| 12 VOLT |
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| CURRENT FOR THE | ||||||||||||||
| BATTERY |
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| BACKUP BATTERY | |||||||||||||
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EARTH GROUND
TERMINALS
GND. GND.
EARTH
GROUND
STAKE
10