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Installing Power Supply Units in the BlackDiamond 8800 Series Switches
BlackDiamond 8800 Series Switches Hardware Installation Guide
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Installing an Extreme Networks 1200 W DC PSU
The Extreme Networks 1200 W DC UL-listed accessory power supply unit (Model # 60021/PS 2350) is
compatible with the BlackDiamond 8806 switch and the BlackDiamond 8810 switch. The power supply
bay in the BlackDiamond 8800 series switch can accommodate up to six hot-swappable 1200 W DC
PSUs.
WARNING!
Field operators must not attempt to open the 1200 W DC PSU enclosure for any reason; the PSU does not contain
user-serviceable parts. In the event of failure, return the defective 1200 W DC PSU to Extreme Networks for repair
or replacement.
Required Tools and Equipment
You need the following tools and equipment to install or remove a 1200 W DC PSU:
● ESD-preventive wrist strap
● Input DC power cable (provided with the DC PSU)
● -48 V DC power source capable of providing 50 A dedicated power to each 1200 W DC PSU installed
in the switch
● Thermal protective gloves (required for removal)
Installing the DC Wiring
The input DC cable for the 1200 W DC PSU is shipped with the DC PSU (see Figure 52). You must use
this cable with the DC PSU. This section provides information about DC power specifications to be used
in connecting the DC cable to the DC source voltage.
Wiring the DC power cord to your facility DC source voltage must be performed by a qualified,
licensed electrician. After the DC power cord is connected to a permanent DC voltage source by a
qualified, licensed electrician, you can remove, replace, and maintain the 1200 W DC PSU without
further electrician assistance. However, make sure that the DC circuit is de-energized before connecting
or disconnecting the DC power cord on PSU.
All wiring methods involving the DC input cable assembly must be performed according to the relevant
articles of the National Electrical Code.
Figure 52: Input DC Power Cable for the 1200 W DC PSU
EX_135
Return
Black: Return
Green/yellow:
Ground
Blue: -48V
Lock
Ground
10 ft.
-48Vdc