3Com S26x, S27x Regulations, Concerning, Electromagnetic, Radiation, Correcting, Interference

FCC Information

Regulations	The Federal Communications Commission (FCC) of the United States of America
Concerning	and the Industry and Science Canada (ISC) have published regulations that govern
Electromagnetic	the allowable limits of emanation of radio frequency energy of computing devices
Radiation	and associated peripherals. These regulations are concerned with interference to
	radio communications, such as radio and television. The regulations require
	equipment for use in the United States or Canada to be labeled and to be
	accompanied by the following notice:
	This equipment has been tested and found to comply with the limits for a Class A
	digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
	provide reasonable protection against interference when equipment is operated in a
	commercial environment. This equipment generates, uses, and can radiate radio
	frequency energy and, if not installed and used in accordance with the instruction
	manual, may cause interference to radio communications.
	This digital apparatus does not exceed the Class A limits for radio noise emissions
	from digital apparatus set out in the radio interference regulations of the ISC.
	Operation of this equipment in a residential area is likely to cause interference in
	which case the user will be required to take adequate measures to correct the
	interference.
	This product was verified under test conditions that include use of shielded DTE
	cable(s). Leased line cables with 1.5 turns through a ferrite cylinder were also used.
	Use of different cables will invalidate verification and increase the risk of causing
	interference to radio and TV reception.
	You can obtain the proper cables from 3Com.
Correcting
	If this equipment causes interference to radio or television reception, which can be
Interference	determined by turning the equipment off and on, you are encouraged to try to correct
	the interference by one or more of the following measures:
	• Reorienting the receiving antenna
	• Relocating the equipment with respect to the receiver
	• Moving the equipment away from the receiver
	• Plugging the equipment into a different outlet so that the equipment and
	receiver are on different circuits
	If necessary, you should consult the dealer or an experienced radio/television
	technician for additional circuits.
Additional
	You may find the following booklet prepared by the FCC helpful: How to
Information	Identify and Resolve Radio-TV Interference Problems. This booklet is available
	from the U.S. Government Printing Office, Washington, D.C. 20402,
	Stock No. 004-000-00345-4.

About the PathBuilder S24x, 26x, and 27x switch 1-47