Furuno FS-1570 Installation Manual page 33

2.3.2 PR-850A for FS-2570
Both 100/110/120/200/220/240 VAC and 24 VDC are supplied to the PR-850A. When AC
input fails, DC power is directly supplied. For GMDSS vessels, 24 VDC power must be
supplied through the radio battery.
Wiring
Connect cables to the input terminal on the front panel, using crimp-on lugs.
Selection of input voltage
The input voltage is adjustable for 100/110/120/200/220/240 VAC, and is factory-set for 220
VAC. To select other input voltages, open the top cover and change the wiring according to
the figure below. After changing the input voltage, correct the front panel sticker accordingly.
Front view
AC IN 24VDC OUT
(Not used, No back up)
Connection of PR-850A
Rear view
24VDC OUT BATT IN
(Back up DC power)
Output:
Back up
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