Telecommunications: Difference between revisions

From Open Source Ecology
Jump to navigation Jump to search
No edit summary
Line 1: Line 1:
=Communication Path Hardware=
=Communication Path Hardware=


Phone cable. Vulnerable to noise, which disrupts information packets (changing magnetic fields induce current in the unprotected wire). Maximum speed is low because higher speeds cause greater noise.
Balanced Pair


[[Image: dslwire.png]]
http://en.wikipedia.org/wiki/Balanced_pair


Coaxial cable. Less vulnerable to noise because the outer conductor shields the inner conductor. Reduced signal-to-noise ratio leads to higher maximum communication speed.
Twisted Pair


[[Image: coaxial.png]]
http://en.wikipedia.org/wiki/Twisted_pair
 
Coaxial Cable
 
http://en.wikipedia.org/wiki/Coaxial_cable
 
Fibre Optics
 
http://en.wikipedia.org/wiki/Fibre_optics
 
Wireless
 
http://en.wikipedia.org/wiki/Wireless


=Hardware Connections=
=Hardware Connections=


[[Image: internet1.png]]
[[Image: internet1.png]]

Revision as of 09:12, 2 July 2012