3 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 Figure 158).
Figure 158: 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).
4 Connect the other end of the wire to a known reliable earth ground point at your site.
Connect the power supply to the power source, following the instructions in Connecting an 1100 W DC
Power Supply to the Source Voltage on page 209.
Connecting an 1100 W DC Power Supply to the Source Voltage
Summit 1100 W DC power supply units must connect to a –48V source.
The DC power connection at your facility must be made by a qualified electrician, following these
instructions.
Warning
Always make sure that the DC circuit is de-energized before connecting or disconnecting the
DC power cables on the DC power supply.
Caution
Provide proper connection and strain relief on the DC power cables in accordance with all
local and national electrical codes.
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.
Installing Your Extreme Networks Switch
ExtremeSwitching and Summit Switches: Hardware Installation Guide 209
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