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Summit Family Switches Hardware Installation Guide
207
Figure 175: Connecting the Ground Wire
Connecting the DC Power Cables
To connect the DC power cables to the Summit X650 DC PSU:
1 Verify that the DC circuit is de-energized.
2 Attach an ESD-preventive wrist strap to your bare wrist and connect the metal end to an appropriate
ground point on the rack.
3 Slide the cover off the terminal block (Figure 176).
4 Connect the DC power input cables as follows:
a On each terminal, loosen the screw enough to allow the spade terminal to slide underneath the
captive square washer.
b Slide the spade terminal of the negative wire (–48 V) under the captive square washer on the
negative terminal (labeled –48V).
c Slide the spade terminal of the positive wire (–48 V RTN) under the captive square washer on the
positive terminal (labeled RTN).
SH_108
1
2
1 = Grounding point
2 = Ground wire