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jpf-netplus-2.5 Circ

jpf-netplus-2.5 Circuit Switched WAN Technologies

QuestionAnswer
Circuit Switched Technologies POTS, PSTN, T1/E1, T1/E3, ISDN BRI,ISDN PRI
What is circuit switching A circuit is established between endpoints before data passes (telephone call), the resource is used and not shared.
What is POTS? Plain Old Telephone Service
What is PSTN? Public Switched Telephone Network, Two wires,15000 ft or 18k ft away
What is a T1? Two Pair of wires, T-CArrier, 24 channel of 64kbit/s 1.536 Mbit/s bandwidth
E1 Bandwith? 2048 Mbit/s
T3 Bandwith? 44.738 Mbit/s
What does ISDN stand for? Integrated Services Digital Network
What is ISDN BRI Basic Rate Interface, (2B+D) 2x64 kbit/s Bearer Channels, One kbit/s Signaling (D) Channel
What is ISDN PRI Primary Rate Interface, T1 - 23B+D, Commonly used as connectivity from the PSTN to large systems PBX
Created by: jerryfreund
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