Juniper PTX3000 Quick Start Manual page 31

Figure 25: Connecting the Negative DC Source Power Cable Lugs to a PSM
12. Verify that the source power cables are connected to the appropriate terminal: the positive (+) source
cable to the return terminal (labeled RTN) and the negative (–) source cable to the input terminal (labeled
–48V).
13. Replace the input terminal cover over the DC power cables, and tighten the screws.
14. Verify that both input 1 and input 2 LEDs on the PSM faceplate are lit steadily green, indicating that
the inputs are receiving power.
15. Reinstall the PSM into the chassis (see
it.
Figure 26 on page 32), and tighten the captive screw to secure
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