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attenuation crosstalk ratio
Last modified: Monday, September 20, 2004 

Also known as headroom, attenuation crosstalk ratio (ACR) is the difference between attenuation and crosstalk at a given frequency along a cable. Measured in decibels, ACR is a calculation used in networking transmission to assure that a signal transmitted across a twisted-pair cable is stronger at the receiving end than any interference signals imposed on that same pair by crosstalk from adjacent pairs.
 
Related Categories

Fiber Optics

Networks

Telecommunications
Related Terms

10Base-T

attenuation

CDDI

coaxial cable

crosstalk

fiber optics

local-area network

optoelectronics

ribbon cable
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