Twisted Pair- Applications Most common medium · Telephone network Individual residential telephone sets are connected to the local telephone exchange(or end office )by twisted-pair wire. These are referred to as subscriber loop Within an office building Each telephone is connected to a twisted pair, which goes to the in-house private branch exchange(PBX) system These twisted-pair installations were designed to support voice traffic using analog signaling. However, by means of a modem, these facilities can handle digital data traffic at modest data rates For digital signaling: connections to a digital data switch or a digital PBX For local area networkS (LAN Data rates can be around 1ombps, 100Mbps, or even 1 Gbps 6
6 Twisted Pair - Applications • Most common medium • Telephone network — Individual residential telephone sets are connected to the local telephone exchange (or “end office”) by twisted-pair wire. These are referred to as subscriber loop. • Within an office building — Each telephone is connected to a twisted pair, which goes to the in-house private branch exchange (PBX) system. • These twisted-pair installations were designed to support voice traffic using analog signaling. However, by means of a modem, these facilities can handle digital data traffic at modest data rates. • For digital signaling: connections to a digital data switch or a digital PBX • For local area networks (LAN) — Data rates can be around 10Mbps, 100Mbps, or even 1Gbps
Twisted Pair- Pros and cons ros Twisted pair is much less expensive than other commonly used guided transmission media Twisted pair is easier to work with Cons: limited in distance. bandwidth and data rate -Short range not good for long-distance -E. g, the data rate of Adsl depends on the distance 1. 5Mbps for 18.000ft 2 mBps for 16,000ft 6. mBps for 12,000ft ·9.0 Mbps for9000ft
7 Twisted Pair - Pros and Cons • Pros —Twisted pair is much less expensive than other commonly used guided transmission media. —Twisted pair is easier to work with. • Cons: limited in distance, bandwidth, and data rate —Short range: not good for long-distance —E.g., the data rate of ADSL depends on the distance • 1.5Mbps for 18,000ft • 2.0Mbps for 16,000ft • 6.0Mbps for 12,000ft • 9.0Mbps for 9000ft