Installation ManualH3C S5510 Series Ethernet Switches Chapter 3 Installing the Switch3-103.2 Installing Power ModuleCaution:Do not touch any leads, terminals and parts marked with the hazard voltage label toavoid body harm.3.2.1 Installing a Power ModuleStep 1: Draw on the ESD-preventive wrist strap and ensure that the strap is wellgrounded.Step 2: Remove the dummy panel from the power slot.Step 3: Keeping the power module to be installed in the right direction, with one handtaking hold of the handle before the module and the other hand holding the module onthe palm, smoothly slide the module into the power slot until the plug on the modulecompletely fits into the socket in the chassis. Note that, the right direction is that theletters on the module is in the up direction; if you install the module with upset down,being restricted by the specially-designed structure inside the chassis, you will not beable to completely insert the module into the slot.Step 4: Fasten the captive screws at both sides of the power module with a Phillipsscrewdriver.3.2.2 Removing a Power ModuleStep 1: Draw on the ESD-preventive wrist strap and ensure that the strap is wellgrounded.Step 2: Power down the module to be removed.Step 3: Loosen the captive screws at both sides of the power module with a Phillipsscrewdriver.Step 4: With one hand taking hold of the handle before the power module to beremoved and the other hand press down on the top of the switch, pull the modulecompletely out off the socket in the chassis and smoothly out of the power slot.