Compact 1769-OF8C Analog Output Module 9
Publication 1769-IN065B-EN-P - September 2005
External Power Switch
The 1769-OF8C has an external 24V dc power switch which gives you the option of
using an external power supply. The switch is located in on the lower left portion
of the module’s circuit board, as shown below. With this switch pressed on the top
(default), 24V dc power is drawn from the 1769 system power supply via the 1769
I/O bus. Pressed on the bottom, 24V dc power is drawn from the external power
supply.
Wire the external power supply to the module via the module’s terminal block. The
external power supply must be rated Class 2, with a 24V dc range of 20.4 to 26.4V
dc and 160 mA minimum.
BUS EXT
External Power Switch
Pressed on the Top
Bus Power (default)
Pressed on the Bottom
External Power
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