ADB Safegate L-854, User Manual

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4.4 Power Supply Board
Figure 4: Power Supply Board 44A6747
See Figure 4 . The Power Supply board provides 5 VDC and 3.3 VDC to the various boards in the system. Input power is
brought in through the (see Table 4 ), Terminal Block at the bottom of the cabinet. Input power options include:
•
120 VAC ±10% 50/60 Hz
•
240 VAC ±10% 50/60 Hz
•
12 VDC ±20%
•
48 VDC ±20%
Note that the correct wiring harness is included when the unit is shipped from the factory; it is not possible to change the
input voltage in the field.
There are two status LEDs on the board. The top LED shows that 5V power is available, and the lower LED shows that 3.3V
power is available. The Control Board also monitors the DC voltage output, and will issue an alarm to the display if the
voltages are out of specification. See Troubleshooting .
There are three fuses on the board, as shown below in Table 5 .
Table 5: Power Supply Fuse Layout
ITEM PART DESCRIPTION FUNCTION
F1 47A0213 .5A 5mm x 20mm SLO BLO 240 VAC Input
F2 47A0213 .5A 5mm x 20mm SLO BLO 120V VAC Input
F3 47A0214 5A 5mm x 20mm SLO BLO DC Input
96A0390, Rev. K, 2019/02/01 15
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