Installation guide

Installing Power Supplies in the BlackDiamond 20808 Switch
BlackDiamond 20808 Switch Hardware Installation Guide
64
Installing a 1900 W DC Power Supply
NOTE
Extreme Networks does not recommended using the 1900 W DC PSU in combination with an Extreme Networks
2400 W AC PSU in the same BlackDiamond 20808 system.
Required Tools and Materials
You need the following tools and materials to install or remove an Extreme Networks 1900 W DC PSU:
● #6 AWG stranded copper cable for connecting the PSU to the DC power source.
A DC power cord is not included with the 1900 W DC PSU. You must provide the #6 AWG stranded
copper cable. Recommended insulation colors are:
■ Red for the –48V connection (–)
■ Black for the –48V 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
Lugs and other hardware for connecting the power and ground wires to the PSU are provided.
● Stripping tool
● Crimping tool for attaching the lugs to the power and ground cables
● Heat-shrink tubing and heat gun
● #1 Phillips screwdriver (for cover on terminal block)
● #2 Phillips screwdriver (for PSU retainers)
● Torque screwdriver and wrench or torque driver with attachments for tightening screws and nuts
Use a 3/8-inch driver for the nut on the grounding wire attachment.
● ESD-preventive wrist strap
● Thermal protective gloves (required for removal of a PSU)
Installation Summary
To install the 1900 W DC PSU, perform the following tasks in the order listed:
1 Prepare the power cables and ground cable by attaching the provided connection lugs to the cables
(see next section).
2 Insert the PSU into the BlackDiamond 20808 chassis.
3 Connect the ground.
4 Have a qualified licensed electrician connect the PSU to the DC source voltage.
5 Energize the DC circuit.
CAUTION
Make sure that the Extreme Networks 1900 W DC PSU circuit is not overloaded. Use proper over-current protection,
such as a circuit-breaker, to prevent over-current conditions.