Cable testing
From Mycomputer Notes
Revision as of 23:52, 26 February 2006 by 70.82.223.90 (Talk)
In this chapter will discribe all the issues related to testing of the media used by the Physical Layer. In order for a LAN or WAN to properly work the physical layer medium must meet the industry standards. The Standard specified the data rate used to trasmit over Ethernet(10, 100, 1000 or 10,000 Mbps) In this chapter we will encounter the term signal, and it refers to the data signal that moves from the transmitter to the receiver. We know based on previous chapter that what travel as a signal is an electrical current. As the signal travels thorgh the physical media this signals attenuates however, the receiver must still be able to clearly determine the state of each bit (1 or 0) of data.
