Superior Cabling Tutorial Nov 02

Copper Cabling Performance• Cat5 Installed base performance• Cat5e performance• Cat6 performance• Noise immunity for applications• Alien NEXT and ELFEXT• Extended Frequency PerformanceCat5 Installed Base• Component performance specified for NEXT, Insertion Loss, and Return Loss• Channel performance not field verified, Cabling measurement specifications (TIA TSB-67) came later.• After the fact, Channel Return Loss and ELFEXT were specified in TIA TSB-95. • During this time, connector design was not well understood, so cabling installed performance varied widely.• Even so, many installed channels may meet Cat5e performance requirements (with ahandwave).Cat5 Channel PerformanceNEXT ELFEXT12 NEXT Fwd12-1ELFEXT13 NEXT Fwd13-1ELFEXT0014 NEXT Fwd14-1ELFEXT-10-1023 NEXT Fwd23-2ELFEXT-20-2024 NEXT Fwd 24-2ELFEXT-30-3034 NEXT Fwd34-3ELFEXT-40-4012 NEXT Rev12-2ELFEXT-50-5013 NEXT Rev13-3ELFEXT-60 -6014 NEXT Rev 14-4ELFEXT-70-7023 NEXT Rev 23-3ELFEXT-80-8024 NEXT Rev 24-4ELFEXT-90-90 34-4ELFEXT34 NEXT Rev-100 Cat 5e TIA -100 Cat 5e TIA1 10 100 10001 10 100 1000F, MHzF, MHzReturn Loss Attenuation00RL 1 Fwd-10-10RL 2 FwdATT 1 Fwd-20RL 3 Fwd-20ATT 2 FwdRL 4 Fwd-30ATT 3 Fwd-30RL 1 RevATT 4 Fwd-40RL 2 RevCat 5e TIA-40RL 3 Rev-50RL 4 Rev-50-60 Cat 5e TIA-60-701 10 100 10001 10 100 1000F, MHzF, MHzNEXT, dBRL, dBELFEXT, dBAttn, dBCat5e Channel ...