Chapter 10: Replacing DC Power Supplies in Summit Family Switches
Summit Family Switches Hardware Installation Guide
370
Connecting the DC Power Cables
To connect the DC power cables to the Summit 850 W DC power supply:
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 314).
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).
Figure 314: Connecting the DC Power Cables (Part 1)
d Tighten both screws on the terminal block to 11 inch-pounds (Figure 315).
(+)
(–)
RTN
-48V
SH_111
To Next Page
Loading...
