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Installing Power Supply Units
BlackDiamond 12800 Series Switches Hardware Installation Guide
90
The input DC cable has an input connector on one end and precut wire on the other end that goes to
the DC power source. The connector end has a locking mechanism that locks onto the DC PSU to
prevent accidental removal of the input DC cable.
If necessary, use appropriate termination lugs for 14 AWG (1.3 mm
2
) copper-stranded wire on the
precut ends of the cable to connect to the DC power source.
The blue termination (-48 V) connects to a 15 A overcurrent protection circuit device, and the brown
(return) termination connects directly to the RTN bus of the DC power source. The green/yellow
termination (ground) must connect to the same earth ground point as the switch.
Installing an Extreme Networks 325 W DC PSU
WARNING!
Make sure that the DC circuit is de-energized before you connect the DC power cord to the 325 W DC PSU or
disconnect the DC power cord from the 325 W DC PSU.
WARNING!
Wiring the 325 W DC PSU 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 325 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 and
socket on the Extreme Networks 325 W DC PSU.
CAUTION
The DC power cord must be properly connected to a DC main circuit breaker or fuse rated no greater than 15 A.
CAUTION
Provide proper connection and strain relief on the DC power cord in accordance with all local and national electrical
codes.
CAUTION
Make sure that the Extreme Networks 325 W DC PSU circuit is not overloaded. Use proper over-current protection,
such as a circuit breaker, to prevent over-current conditions.
NOTE
A minimum of two Extreme Networks 325 W DC PSUs are required to run a BlackDiamond 12802 switch.