3com 10005622 User Manual

You took careful steps to plan and prepare your site 
for new or additional SuperStack

®

 II Switch 3900 

stackable switch systems. For your reference, this 
appendix summarizes the criteria that your site should 
meet for the Switch 3900 to operate safely and 
effectively. 

The topics covered in this appendix:

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■

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Distribution Rack Requirements, if you mount one 
or more Switch 3900 systems in a distribution rack

■

For safe operation, your site must meet these general 
safety requirements:

■

All environmental requirements listed in Appendix 
A and in “Wiring Closet Recommendations.” Pay 
special attention to temperature and humidity.

■

All building and electrical codes for your city and 
country. See relevant “Building and Electrical 
Codes” for more information. 

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All grounding requirements listed in “Wiring 
Closet Recommendations” and “Distribution Rack 
Requirements.”

The cabling system plan at your facility probably 
covers most wiring closet concerns. 3Com also 
recommends that you check these items:

■

Verify that your wiring closet meets all of the 
requirements in your facility cabling plan.

■

Verify that your wiring closet and your facility meet 
all state, local, and country building and wiring 
codes.

■

Be sure that your system is easily accessible for 
installation and service.

■

Provide adequate overhead lighting for easy 
maintenance.

■

Be sure that all wiring closet doors have locks to 
prevent unauthorized access.

■

Assign wiring closet identification numbers using 
architectural location codes or some type of 
floor-grid matrix.

■

Select a vinyl floor covering for your wiring closet. 
Concrete floors accumulate dust; carpets can 
cause static electricity.

■

Be sure that the wiring closet floor is flat and level. 
If you are using distribution racks and the floor is 
not level, bolt the racks to the floor to prevent 
them from tipping over.