Extreme Networks E4G Series Installation Manual page 72

Chapter 4: Maintenance Procedures
To replace an AC power supply:
1 Disconnect the AC power cord from the wall outlet and from the power supply.
2 Note the orientation of the installed power supply, and the location of the latching tab at the right of
the unit.
3 Push the latching tab toward the power supply handle and pull outward on the handle to disengage
the power supply internal connectors
Figure 42: Removing a 300 W AC Power Supply
4 Carefully slide the power supply the rest of the way out of the router.
CAUTION
Power supplies may become very hot during operation. Wear thermal protective gloves when you
remove a power supply from an operating router.
NOTE
If you are not installing a replacement power supply, install a cover over the unoccupied power supply
bay. Unoccupied bays must always be covered to maintain proper system ventilation and EMI levels.
5 Verify that the replacement power supply is oriented the same way as the unit you removed.
72
(Figure 42).
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E4G Series Routers Hardware Installation Guide