Extreme Networks Consolidated ExtremeXOS Hardware Installation Guide
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14 Replacing the BlackDiamond 12802 PSU/Fan
Controller and Fan Tray
This chapter provides important safety information and instructions on how to replace a PSU/fan
controller or fan tray in the BlackDiamond 12802 switch.
Each BlackDiamond 12802 switch has one fan tray containing four fans. A PSU/fan controller module
in the BlackDiamond 12802 switch collects and reports data from the AC power supply units and the
fan tray.
Safety Information
Service to all BlackDiamond equipment should be performed by trained service personnel only. Read all
important safety information before installation or removal. See Appendix A for additional information
regarding regulatory compliance certifications applicable to a BlackDiamond PSU/fan controller.
Thoroughly review the information about power supplies in Chapter 6 before working with the PSU/
fan controller unit.
Pre-installation Requirements
You must have access to the back of the BlackDiamond switch to replace an installed BlackDiamond
12802 fan tray or PSU/fan controller.
Power off the BlackDiamond 12802 switch before you begin to replace the PSU/fan controller.
To replace a BlackDiamond fan tray or PSU/fan controller, you need the following tools and equipment:
● ESD-preventive wrist strap
● #2 Phillips screwdriver
● Replacement BlackDiamond fan tray or PSU/fan controller
Replacing the BlackDiamond 12802 Fan Tray
Removing the fan tray for more than a few minutes may result in overheating and possible damage to the system.
Thermal sensors shut down power if the internal temperature exceeds 60 °C. Make sure you have the replacement
unit before starting this procedure.
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