Install a 300 W Internal DC Power Supply
Caution
Make sure that the DC power supply circuit is not overloaded. Use proper overcurrent
protection, such as a circuit breaker, to prevent overcurrent conditions. You may use up to a
30-Amp breaker.
To install a 300 W DC power supply (part no. 10933 or 10944) in a switch, perform the following tasks in
the order listed:
1 Make sure you have the tools and materials you need.
Required Tools and Materials for Installing a 300 W DC Power Supply
2 Prepare the power cables and ground cable by attaching the provided connection lugs to the cables.
Preparing the Cables for a 300 W DC Power Supply
on page 187.
3 Insert the power supply into the switch.
Installing a 300 W DC Power Supply
on page 187.
4 Connect the ground wire.
Connecting the Ground Wire to a 300 W DC Power Supply
5 Connect the power supply to the DC source voltage.
Connecting a 300 W DC Power Supply to the Source Voltage
on page 190.
6 Energize the DC circuit.
Required Tools and Materials for Installing a 300 W DC Power Supply
You need the following tools and materials to install or remove a 300 W DC power supply.
•
Two spade terminals (Tyco part number 328281 or equivalent) for connecting the input power cables
(provided)
•
One ring terminal (Tyco part number 2-320561-4 or equivalent) and screw with captive lock washer
(type 6-32 UNC) for connecting the ground wire (both provided)
•
#14 AWG copper cable for grounding the power supply and connecting the power supply to the DC
power source. (DC power and grounding cables are not included with the power supply.)
Recommended insulation colors are:
•
Red for the –48 V connection (–)
•
Black for the –48 V RTN connection (+)
•
Green or green with yellow stripe for the ground connection
•
Connection hardware appropriate to the installation site:
•
Hardware for connecting the power wires to the DC source
•
Hardware for connecting the ground wire to the site grounding point
•
Stripping tool
•
Crimping tool for attaching the lug to the ground wire
•
#1 Phillips screwdriver
•
Torque screwdriver and wrench or torque driver with attachments for tightening screws and nuts
•
ESD-preventive wrist strap
•
Thermal protective gloves (required for removal of a power supply)
Connection lugs for power and ground and a screw for connecting the ground wire are shipped with the
power supply.
Installing Your Extreme Networks Switch
ExtremeSwitching and Summit Switches: Hardware Installation Guide
186
