Tx3-Ps24-5A Power Supply (Not Permitted In Ul 294 Applications); Figure 17 Controller Board Power Supply - Mircom TX3 Series Installation Manual

4.3.1 Power Supply Connection
The power supply connection on the bottom right of the controller board and
receives 16 VAC, 40 VA. Use 18 AWG wiring.
ON/OFF Switch
Figure 17. Controller board power supply
4.4 TX3-PS24-5A Power Supply (not permitted in UL
294 applications)
Note:
The power supply terminal block is shown in figure 17. It receives 24 VDC from
the external TX3-PS24-5A power supply.
The external TX3-PS24-5A power supply connects to the building power AC
power supply. A voltage selectable switch is located on the side of the unit and is
factory set to 115 V.
For best operation install the external power supply into its own dedicated
electrical outlet to protect it from excessive power surges and current
fluctuations.
Note:
UL Listed TX3-CX Card Access System Installation Manual
Version 2
LT-6906 Copyright 2019
OFF ON
SW2
16 Vac IN
Note: Use 18 AWG
The TX3-PS24-5A power supply is not evaluated to UL 294.
Install the power supply outside the card access enclosure.
Setup of the Card Access Controller
• Direct plug-in Class 2 transformer
(Manufactured by Yeo Heung
Electronics Co. Ltd., Model No.
SEP/P-1640U)
• UL 294 Listed power supply
• TX3-PS24-5A external power supply
(non-UL 294-listed applications only)
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