Installation Guide

4 Connect the ground wire to the grounding post as follows:
a Remove the nut from the grounding post.
b Slide the ring terminal of the ground wire onto the grounding post (callout 1 in the following
figure).
Figure 236: Securing the Ground Wire
c Screw the nut onto the grounding post (callout 2).
d Tighten the nut to 7 in‑lb (0.79 N m).
5 Connect the other end of the wire to a known reliable earth ground point at your site.
6 Connect the power supply to the DC power source. See the instructions in Connect DC Power Cables
to an 750 W DC Power Supply on page 297.
Connect DC Power Cables to an 750 W DC Power Supply
The DC power connection at your facility must be made by a qualified electrician.
Warning
Always make sure that the DC circuit is de-energized before connecting or disconnecting the
DC power cables on the 750 W DC power supply.
Caution
Provide proper connection and strain relief on the DC power cables in accordance with all
local and national electrical codes.
To connect the DC power cables to the 750 W DC power supply, follow these steps:
1 Verify that the DC circuit is de-energized.
Replacing DC Power Supplies
ExtremeSwitching and Summit Switches: Hardware Installation Guide 297