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ELFEXTEqual Level Far End Cross Talk
ELFEXTEqual-Level Far-End Crosstalk
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References in periodicals archive ?
Equal level far end crosstalk (ELFEXT) takes into consideration the attenuation of the cabling system.
Enhanced CAT 5 requires six additional test parameters--power sum NEXT, return loss, pair-to-pair ELFEXT, power sum ELFEXT, propagation delay and delay skew.
Category 5 Cable Tests Transmission Parameter Channel Performance NEXT @ 100 MHz 27.1 dB PSNEXT @ 100 MHz NA Attenuation @ 100 MHz 24.0 dB ELFEXT @ 100 MHz 17.0 dB(*) PSELFEXT @ 100 MHz 14.4 dB(*) Return Loss @ 100 MHz 8.0 dB(*) Propagation Delay @ 10 MHz 555 ns Delay Skew 50 ns
Features exceptional PS NEXT, PS ELFEXT, and PS ACR performance above TIA/EIA 568-A-5 requirements and usable bandwidth above 250 MHz.
OMNIScanner provides accurate return loss and ELFEXT measurements for 1000Base-T networks.