Telecommunications Chapter 6 Updated January 2009 XU Zhengchuan Fudan University
XU Zhengchuan Fudan University Telecommunications Chapter 6 Updated January 2009
Telecommunications · From Chapter1: Data communications Telecommunications: Voice and Video Communications RV HIN 6-2
6-2 Telecommunications • From Chapter 1: – Data communications – Telecommunications: Voice and Video Communications
Technical elements of the Public switched Telephone Network
Technical Elements of the Public Switched Telephone Network
Figure 6-1: Elements of the Public Switched Telephone Network (PSTN) 1. Customer Premises Customer Premises Equipment Equipment 6-4
6-4 Figure 6-1: Elements of the Public Switched Telephone Network (PSTN) 1. Customer Premises Equipment 1. Customer Premises Equipment
Figure 6-2: Customer Premises Equipment Site Handset PBX 4-Pair UTP Telephone Wiring Ⅲ[ PSTN A typical business site The private branch exchange is an internal switch for the site 4-pair UTP was created for business premises telephone wiring Company is essentially its own telephone company that connects to the outside Pstn 6-5
6-5 Figure 6-2: Customer Premises Equipment PSTN PBX Handset 4-Pair UTP Telephone Wiring Site A typical business site. The private branch exchange is an internal switch for the site. 4-pair UTP was created for business premises telephone wiring Company is essentially its own telephone company that connects to the outside PSTN