Lec 13 Transmission Media

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Presentation transcript:

Lec 13 Transmission Media Computer Networks Al-Mustansiryah University Elec. Eng. Department College of Engineering Fourth Year Class Lec 13 Transmission Media

Figure 5.1 Transmission medium and physical layer

Figure 5.2 Classes of transmission media

5-1 GUIDED MEDIA Guided media, which are those that provide a conduit from one device to another, include twisted-pair cable, coaxial cable, and fiber-optic cable.

Cable Specifications

Cable Specifications 10BASE-T 10BASE5 Speed of transmission at 10 Mbps Type of transmission is baseband, or digitally interpreted T stands for twisted pair 10BASE5 Speed of transmission at 10 Mbps Type of transmission is baseband 5 represents the capability of the cable to allow the signal to travel for approximately 500 meters before attenuation could disrupt the ability of the receiver to appropriately interpret the signal being received.

Cable Specifications 10BASE2 Speed of transmission at 10 Mbps Type of transmission is baseband 2 represents the capability of the cable to allow the signal to travel for approximately 200 meters, before attenuation could disrupt the ability of the receiver to appropriately interpret the signal being received.