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3.3.3
Power Supply
The power supply connection is situated at the bottom right of the main controller
board and receives 16 VAC, 40 VA. Use 18 AWG wiring. An external PS-4 or
PS-4P plug-in transformer connects to the power terminals. Refer to Figure 5 and
figure 10.
Figure 10. Power Supply
3.3.4
ON/OFF Switch and Battery Back-up
Battery back-up is provided with a 12 V, 6.5 Ah battery which fits inside and at
the bottom of the unit. Connect the battery to the connectors located to the left of
the ON/OFF switch SW1 as shown in figure 11.
Note:
Figure 11.
TX3-CX Card Access System Installation and Operation Manual
34
LT-980
Copyright 2017
OFF
ON/OFF Switch
16 Vac IN
18 AWG
P6 - P5 +
Battery backup is optional.
Controller Board Battery Wiring
Installation and Setup of the Card Access Controller
ON
SW1
16 Vac
16 Vac transformer
(PS-4 or PS-4P)
120 Vac
Version 4.1
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