Juniper M120 - Figure 100: Installing an M120 DC Power Supply

12. Connect each DC power cable to the appropriate external DC power source.
NOTE: For information about connecting to external DC power sources,
see “M120 DC Power, Connection, and Cable Specifications” on page 97.
13. Switch the power switch on the power supply faceplate to the on position (|). Verify
that the status LED on the power supply faceplate blinks, then lights steadily
approximately one minute after you switch on the power switch.
Figure 100: Installing an M120 DC Power Supply
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M120 Multiservice Edge Router Hardware Guide