3Com WX2200 Hardware Installation Guide - Page 34
Installing a Power Supply in a WX4400 Switch, Installing a New Power Supply, Installing a New
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34 CHAPTER 2: INSTALLING AND CONNECTING A WX SWITCH Installing a Power Supply in a WX4400 Switch A WX4400 switch is shipped with a single 100-240 VAC autosensing AC power supply. One power supply provides enough power for a fully configured system. You can add a second power supply for load sharing and redundancy. A WX4400 switch containing one power supply can have the supply installed in either slot. If the switch contains two power supplies and one supply fails, the other supply automatically takes over to provide uninterrupted operation. The power supplies are hot-swappable. You can remove or insert a power supply while the other power supply is running. Use the following procedures to install a second power supply or replace a failed power supply. To attach the power supply to an WXR100, see "Powering On a WX Switch" on page 37. Installing a New Power Supply 1 If you are replacing a failed power supply and have not already removed it from the WX switch, go to "Replacing a Power Supply" on page 35. 2 If you are installing a new power supply in an unused slot, loosen the thumbscrew with a #2 Phillips-head screwdriver and remove the cover plate. Store the cover plate in a safe place in case you need to use it at another time. 3 Remove the new power supply from its packaging and lift the supply by grasping the front handle with one hand and supporting the supply from the bottom with the other hand. 4 Insert the power supply into the WX switch's slot as shown in Figure 9, pushing gently but firmly until the supply is fully seated and flush with the switch's front panel.