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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, 600-volt
insulated wire.
• For power wire runs up to 200 feet, use 16 AWG, 600-volt
insulated wire.
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 12-volt gel-cell type battery. Up to a 7-amp/hr. battery will fi t into the
AM3Plus cabinet. Do not use a 6-volt battery.
✦ 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 8-foot copper ground rod. Locate the ground rod next to the Power
and Telephone company rods and bond the rods together with a new
clamp. Do not disturb the clamps installed by the Power or Telephone
Company. Alternately, connect to a metallic cold water pipe for the earth
ground.
1. Connect the wire from the earth ground to the AM3Plus EARTH
GROUND terminal.
16 VAC
20 VA
TRANSFORMER
POWER
TERMINALS
AC-DC AC-DC
NOTE: THE AM3PLUS
WILL SUPPLY CHARGING
CURRENT FOR THE
BACKUP BATTERY
BAT
BAT
BATTERY
TERMINALS
12 VOLT
BATTERY
EARTH
GROUND
STAKE
EARTH GROUND
TERMINALS
GND. GND.