Extreme Networks ExtremeSwitching VSP 7400 Series Hardware Installation Manual page 48

Installing a 750 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 750 W DC power supply in a switch, perform the following tasks in the order listed:
1 Make sure you have the tools and materials you need.
See Required Tools and Materials for Installing a 750 W DC Power Supply
2 Prepare the power cables and ground cable by stripping off the insulation.
See Preparing the Cables for a 750 W DC Power Supply
3 Ground the switch chassis.
See Grounding the Switch Chassis
4 Insert the power supply into the switch.
See Installing a 750 W Internal DC Power Supply
5 Connect the ground wire.
See Connecting the Ground Wire to a 750 W DC Power Supply
6 Connect the power supply to the DC source voltage.
See Connecting a 750 W DC Power Supply to the Source Voltage
7 Energize the DC circuit.
Required Tools and Materials for Installing a 750 W DC Power Supply
You need the following tools and materials to install or remove a 750 W DC power supply in a VSP 7400
Series switch.
•
#14 AWG copper cable for grounding the power supply and connecting the power supply to the DC
power source. (DC power cables 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
•
Cross-head (Phillips) torque screwdriver
•
#1 cross-head (Phillips) screwdriver
•
ESD-preventive wrist strap
•
Thermal protective gloves (for removal of a warm power supply)
Preparing the Cables for a 750 W DC Power Supply
You will need three cable wires for each installed DC power supply: two input cables and a grounding
cable. We recommend that each cable have differently colored insulation, as described in
Tools and Materials for Installing a 750 W DC Power Supply
VSP 7400 Series Switches: Hardware Installation Guide
on page 48.
on page 49.
on page 48.
on page 48.
Installing Your Switch
on page 48.
on page 50.
on page 50.
Required
48