Extreme Networks ExtremeSwitching X440-G2 Series Hardware Installation Manual page 285

6 Slide the cover into place over the terminal block.
7 Energize the DC circuit.
Connecting the DC Power Cables to a -48 V Source
To connect the DC power cables for the 300 W Summit DC power supply (part no. 10933 or 10944) to a
-48 V source, follow these steps:
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 Verify that the ground wire is attached to the power supply.
See Connecting the Ground Wire to a 300 W DC Power Supply
4 Slide the cover off the terminal block.
5 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 –48 V).
ExtremeSwitching and Summit Switches: Hardware Installation Guide
Replacing DC Power Supplies
on page 281.
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