3com S8520X-28S 0235A370 User Manual

 

3-13 

Install a power module 

 

 

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If the slot has a filler panel, remove it before inserting the power module.  

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To prevent damage to the power module or the connector on the backplane of the powered device, 
insert the power module gently. If you encounter a hard resistance while inserting the power 
module, pull out the power module and then insert it again.  

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If the captive screw cannot be tightly fixed, check the installation of the power module.  

 

To remove the power module, follow these steps:  

Wear an ESD-preventive wrist strap, ensure a good skin contact and make sure that the 
ESD-preventive wrist strap is properly grounded.  

Switch off the power module and disconnect the power cord.  

Face the power module to be removed from the powered device.  

Loosen the captive screw of the power module anti-clockwise with a Philips screwdriver until the captive 
screw falls off the powered device.  

Grasp the handle of the module with one hand and pull it out a little, hold the module bottom with the 
other hand, and then pull the module slowly along the guide rails out of the slot.  

 

Put the power module into an antistatic bag after removal.