Extreme Networks BlackDiamond 6808 Installation Manual
Extreme Networks BlackDiamond 6808 Installation Manual

Extreme Networks BlackDiamond 6808 Installation Manual

Extreme blackdiamond 6808: installation guide
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BlackDiamond DC Power Supply
Installation Note

Overview

This installation note describes the BlackDiamond
to prepare the power supplies and the cabling, explains how to terminate the cabling, and lists
the steps required to remove and replace a power supply.
The BlackDiamond 6808 chassis accommodates two power supplies, and the BlackDiamond
6816 chassis accommodates four power supplies. There are three types of power supplies
available: 110 VAC, 220 VAC, and -48 VDC. All installed power supplies must be of the same
type. This document describes -48 VDC power supply installation only.
Caution: Service to BlackDiamond power supplies should be performed by trained
service personnel only. Before installing or removing any components of the system, or
before carrying out any maintenance procedures, read the safety information provided in
Appendix A of the BlackDiamond Hardware Installation Guide.
Table 1 lists the BlackDiamond DC power supply operating ranges. DC input ranging from -42
to -72 V.
Table 1: BlackDiamond DC Power Supply Operating Ranges
Input
-42 to -72 V
The power supplies are fully fault tolerant. They are also load-sharing, so that if one power
supply fails, the other power supply will provide sufficient power to operate a fully loaded
chassis.
The BlackDiamond chassis power supply slot is designed for standard 5" x 8" footprint power
supplies. Each power supply contains a cooling fan. Air enters from the front vent holes on the
power supply and exits from the back vent holes of the chassis, as illustrated in Figure 1. This
airflow is independent of the airflow through the modules.
Part Number: 121024-00 Rev 02
Output
1971 W
DC Power Supplies, lists the steps required
1

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Summary of Contents for Extreme Networks BlackDiamond 6808

  • Page 1 The BlackDiamond 6808 chassis accommodates two power supplies, and the BlackDiamond 6816 chassis accommodates four power supplies. There are three types of power supplies available: 110 VAC, 220 VAC, and -48 VDC.
  • Page 2: Equipment Required

    Air flow through chassis POWER -48V -48V RET 48V, 60A Figure 1: Airflow through the BlackDiamond chassis If a power supply’s fans fail, immediately remove the power supply from the chassis. Because the power supply airflow is separate from the chassis airflow, as illustrated in Figure 1, heated air from the power supply will not be sufficiently vented if the power supply fans fail.
  • Page 3: Selecting The Cabling

    • Six lockwashers (included with your power supply) • Six nuts (included with your power supply) Preparing the Power Supplies The DC inputs to the power supplies are on the front of the power supply. The input terminals are isolated from the ground terminal. Power supplies slide in from the front of the chassis, as illustrated in Figure 2.
  • Page 4: Removing And Replacing A Power Supply

    Removing and Replacing a Power Supply • For DC power cables, use 4 AWG, high-strand-count wire cable. Attaching the Cabling To attach the cable to the lugs, perform the following steps. 1 Strip 0.5 inches of insulation from the 4 AWG, high strand-count cable. 2 Insert the cable into the cable lugs.
  • Page 5 POWER -48V -48V RET 48V, 60A Figure 4: BlackDiamond DC power supplies 4 Slide the power supply out of the chassis. Caution: Do not handle the power supply using the DC output bus bars. To install a power supply, follow these steps: 1 Ensure that the replacement power supply is right-side up, and the locking handle is open.

This manual is also suitable for:

Blackdiamond 6816

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