Installing Summit X650 Power Supplies
Summit Family Switches Hardware Installation Guide
289
To connect the DC power input cables:
1 Verify that the DC circuit is de-energized.
2 Slide the cover off the terminal block (Figure 236).
3 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).
Figure 236: Connecting the DC Power Cables (Part 1)
d Tighten both screws on the terminal block to 11 inch-pounds (1.2 Newton-meters) (Figure 237).
(+)
(–)
RTN
-48V
SH_111
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