Hot Downloads

Welcome, Guest
Username: Password: Remember me

TOPIC: cabling

cabling 12 years 5 months ago #3208

  • wenene
  • wenene's Avatar
  • Offline
  • New Member
  • Posts: 1
  • Karma: 0
can you guys help me undersatnd the concept behind ELFEXT(equal-level far-end crosstalk,please :?:
The administrator has disabled public write access.

Re: cabling 12 years 5 months ago #3229

  • mew
  • mew's Avatar
  • Offline
  • Frequent Member
  • Posts: 77
  • Karma: 0
Here is a web site that does a good job of answering your question.

www.datacottage.com/nch/testing.htm

If this is more technical that you wanted then go with this. As a signal travels down a cable it is "attenuated" or gets weaker. That is why maximum cable length is specified for cable runs.

Far End Xross Talk is the level at which wire pairs will induce current (signals) into each other.

Attenuation minus FEXT gives an more accurate picture of how much effect the FEXT will really have on distorting signals. This is ELFEXT.

Hope this helps.
The administrator has disabled public write access.
Time to create page: 0.073 seconds

CCENT/CCNA

Cisco Routers

  • SSL WebVPN
  • Securing Routers
  • Policy Based Routing
  • Router on-a-Stick

VPN Security

  • Understand DMVPN
  • GRE/IPSec Configuration
  • Site-to-Site IPSec VPN
  • IPSec Modes

Cisco Help

  • VPN Client Windows 8
  • VPN Client Windows 7
  • CCP Display Problem
  • Cisco Support App.

Windows 2012

  • New Features
  • Licensing
  • Hyper-V / VDI
  • Install Hyper-V

Linux

  • File Permissions
  • Webmin
  • Groups - Users
  • Samba Setup