4 Knowledge Base

 

 TelecomTrainning.net > Knowledge Base
 Viewing KB Article
Good Afternoon, - Please register or - log-in to your account.
Search
Search   Saved Questions   Ask a question
Keywords 
 
Available categories
LTE
100 of Questions in LTE
CCNA Certification
CCNA Sample Q & A (1000 + Q &A)
(Network +) Certification
(Network +) Sample Q & A (1000 + Q &A)
Networking
General/Interview Q& A on Networking
Home Networking
General/Interview Q& A on Networking
VOIP, SIP & Asterisk
Q & A on VOIP,Ethereal, SIP & Asterisk
Telecom Test Equipments
Q & A on Telecom Test Equipment
PSTN / Wireline
General / Interview Q & A on PSTN / Wireline
LTE, Wireless, 3G ,Diameter and HSS
General/Interview Q & A on LTE, Wireless, 3G ,Diameter and HSS
Telecom General
Any Q & A in Telecom in General

Top Questions
Friends, Describe Secure storage and distribution of A-Keys?
what is the difference between E1 signal & Ethernet signal ?
How do I monitor SS7 Traffic in spectra2?
Can you tell me about PBGT?
Explain me the difference between a repeater, bridge and router? Relate this to the OSI model.
What is the difference between BRI & PRI ?
Guys what is the purpose of Umbrella Cell Approach in GSM ?
how can we explain media gateway in MSc?
What is GGSN?
What is the difference between Electrical-tilt and Mechanical-tilt of an antenna?
What is BSC?
What is demarc point?
Can any one explain me how sms flow will work using ss7 network ?( from physical layer to application layer)
why cellphone towers are painted in red and white?
Explain SLTA and SLTM messages in MTP3?
Hi guys what is WAP?
wat is the difference betweem MSC & GMSC, & MSS & GCS?
what is EDAp? what is the functions of EDAP?
What is a circuit id?
what is sdh?

Would you explain NEXT and FEXT in twisted pair cable?
HamidAliKhan 12-November-2008 04:05:48 PM

Comments


www.cumberland.tec.nj.us/cisco/Class/network/D1studyguides/Chapt4SGQ.doc -
FEXT(far end crosstalk)
NEXT(Near end crosstalk)
for explanation visit the link below]
Posted by waqasahmad


FEXT(far end crosstalk)
NEXT(Near end crosstalk)
for explanation visit the link below]
http://www.tmworld.com/article/CA475935.html
Posted by Hash007


Near-end crosstalk is a phenomenon that can take place when there is some form or electromagnetic interference taking place with relatively close to the point of measurement. The effect of near-end crosstalk is that the signals being carried by two different cables or wires may begin to interfere with one another in a manner that degrades the signal of at least one of the two transmissions. The problem can take place due to something as simple as a temporary twisted pair cabling or worn spots in the insulation of the cabling proper that allow the wiring of the two cables to come into close proximity.

Along with near-end crosstalk or NEXT, there is also the occurrence of what is known as far-end crosstalk or FEXT. FEXT is essentially the same set of circumstances that occur with near-end crosstalk. The only difference is that far end crosstalk is the detection of a signal crossing or disruption that is located at a distance from the point of measurement.

For more detail please visit the following link:

http://www.wisegeek.com/what-is-near-end-crosstalk.htm

Posted by sagitraz


Near End Crosstalk (NEXT)
------------------------------
Also known as self-crosstalk.
Coupling of signal from one pair to another.
Coupling takes place when transmit signal entering the link couples back to receiving pair. i.e. near transmitted signal is picked up by near receiving pair.

Far End Crosstalk
------------------------
Same but on other pair.
Posted by waqqas1

Q&A Rating

Q&A Rating
Rate This Question and Answer

Related Questions
What is the max transmission rate of 100Base-FX and 100Base-TX?
 
What is DQPSK?
Hi, the place we plug the telephone line can it be connected to router? If yes, which interface in router?


Search questions via popularity
Top viewed questions  Top emailed questions  Most printed questions  Most saved questions
 
Copyright © Telecom Training, All Rights Reserved