Beacon 110 Operator’s Manual 15
110 includes the battery charging feature, see “Battery Charging (Optional)” on page 22
for a complete description of this feature and what type of battery to use.
WARNING: The External DC In terminals on the controller terminal strip are only intended
for connecting a battery or a 24 VDC supply to the Beacon 110. Do not connect
any horns or strobes to the External DC In terminals on the controller terminal
strip.
1. Turn off or unplug all incoming power to the Beacon 110.
2. Open the housing door, then place the power switch in the OFF position.
CAUTION: The power switch does not control DC input power.
3. Locate the DC power terminals on the controller terminal strip in the lower right corner
of the main PCB (see Figure 1). They are labelled EXT DC + and EXT DC -.
4. Install an appropriately rated cable bushing or conduit to the left conduit hub on the
bottom of the Beacon 110 housing.
CAUTION: Only use the two factory installed conduit hubs on the bottom of the
housing for wire entry into the housing. Do not drill the housing for any
reason. See “Routing Wiring Into the Beacon 110 Housing” on page 13 for
more information.
5. Guide a DC power cord or wires through the conduit hub.
CAUTION: Do not route power and detector head wiring through the same conduit
hub. The power wiring may disrupt the transmission of the detector head
signal to the monitor.
6. Connect the DC wires to the controller terminal strip as shown in Figure 8.
Figure 8: DC Power Wiring
NOTE: The Beacon 110 will operate from the DC input down to 18.5 volts. If a self
contained backup battery is used, see its operator’s manual for a description of
its recharging characteristics. If your Beacon 110 includes the battery charging
feature and a backup battery is used, the Beacon 110 will recharge the battery
when AC power has returned after a power failure. See “Battery Charging
(Optional)” on page 22 for a complete description of the battery charging
feature.
EXT DC
(24V BATT)
+ -
+
-
24 VDC
External DC In Terminals
on Controller Terminal Strip
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