Installing Summit 450 W and 550 W Power Supplies
Summit Family Switches Hardware Installation Guide
273
To connect the DC power input cables:
1 Verify that the DC circuit is de-energized.
2 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 (Figure 219).
b Slide the spade terminal of the negative wire (–48 V) under the captive square washer on the
negative terminal (labeled –).
c Slide the spade terminal of the positive wire (–48 V RTN) under the captive square washer on the
positive terminal (labeled +).
Figure 219: Connecting the DC Power Cables (Part 1)
SH_161
(+)
(–)
RTN
-48V
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