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Digital Telephony or digital communication leased digital circuits... Form the Building blocks for long distance computer networks, Low-capacity must be considered such as... Wireless Connections, Wireless Connections this is one of the special cases for people not around the cable or analog line area... But can also relate to Metropolitan Network Users as opposed to just rural subscribers, Data Service Unit / Channel Service Unit (DSU / CSU) (mouse over info) all connections utilize one of many standards... Cable (mouse over info), Data Service Unit / Channel Service Unit (DSU / CSU) (mouse over info) all connections utilize one of many standards... E1, E2, E3, Data Service Unit / Channel Service Unit (DSU / CSU) (mouse over info) all connections utilize one of many standards... DSL and ADSL (mouse over info), Data Service Unit / Channel Service Unit (DSU / CSU) (mouse over info) all connections utilize one of many standards... T1, T2, T3 (T1 is most popular), Data Service Unit / Channel Service Unit (DSU / CSU) (mouse over info) all connections utilize one of many standards... Integrated Service Digital Network (ISDN) (mouse over info), Broadcast Satellite Systems two innovations were needed... Broadcast mechanisms were devised, to offset treating satellite as PPP, Broadcast Satellite Systems two innovations were needed... And also provide an alternative uplink transimssion path to offset costs of expensive ground stations, T1, T2, T3 (T1 is most popular) used in... U.S., C Suffix STS and Optical Carrier has this additional feature... Concatenated (mouse over info), Cable (mouse over info) engineers use Existing Cable tv infrastructure (mouse over info), But can also relate to Metropolitan Network Users as opposed to just rural subscribers speeds can range from... 50 - 155 Mbps, Concatenated (mouse over info) in addition, telephone companies have also developed another standard... Synchronous Optical NETwork (SONET), Data can be transmitted farther with high-quality voice connection capability one of the key factors was establishing a series of digital connections... Digitization made this possible (mouse over info), Pulse Code Modulation is used to convert it takes the analog audio and.... Converts each sample in an integer between 0 and 255, Existing Cable tv infrastructure (mouse over info) then they are able to deliver... Digital data to subscribers, E1, E2, E3 used in... Europe, Inverse multiplexing (mouse over info) higher capacity circuits are called... STS, Inverse multiplexing (mouse over info) higher capacity circuits are called... Trunks (mouse over info), Asynchronous it is believed that ADSL would improve transfer rate... Because of the increase of transfer in the direction of the transfer, STS this refers to... Optical Carrier (OC) (mouse over info), Existing Cable tv infrastructure (mouse over info) an existing cable technology that offers upstream is... Hybrid Fiber Coax (HFC) (mouse over info), Digital Telephony or digital communication prior to contrary belief, telephone companies do rely totally on analog lines... Synchronous or clocked technology is also used, Form the Building blocks for long distance computer networks furthermore require a... Data Service Unit / Channel Service Unit (DSU / CSU) (mouse over info), Synchronous Optical NETwork (SONET) specfies the following... How synchronous clock information is sent along with data, Synchronous Optical NETwork (SONET) specfies the following... How data is framed, Synchronous Optical NETwork (SONET) specfies the following... How lower-capacity circuits are multiplexed into a higher capacity circuit, Synchronous or clocked technology is also used this is because systems used for data and those used for digitized voice differ... Synchronous Network (mouse over info), Companies change present cable infrastructure to counter this... Fiber to the curb (FTTC) (mouse over info), DSL and ADSL (mouse over info) other technologies include... SDSL (mouse over info), DSL and ADSL (mouse over info) other technologies include... VDSL (mouse over info), DSL and ADSL (mouse over info) other technologies include... HDSL (mouse over info), Hybrid Fiber Coax (HFC) (mouse over info) this requires though... Companies change present cable infrastructure, CHAPTER 12 long distance communications generally use... Digital Telephony or digital communication, DSL and ADSL (mouse over info) rates in transfer vary because one is... Asynchronous, Head-End (mouse over info) these modems are used freom the central office to... Provide higher throughput from the central office to the subscriber, How lower-capacity circuits are multiplexed into a higher capacity circuit in addition to circuit capacities... Low-capacity must be considered, Tail-End (mouse over info) these modems are used freom the central office to... Provide higher throughput from the central office to the subscriber, How lower-capacity circuits are multiplexed into a higher capacity circuit also consider... Broadcast Satellite Systems, U.S. utilize a mechanism called... Inverse multiplexing (mouse over info), Digitization made this possible (mouse over info) furthermore... Pulse Code Modulation is used to convert , Integrated Service Digital Network (ISDN) (mouse over info) it is a form of... Division Multiplexing, Digital Telephony or digital communication this is because... Data can be transmitted farther with high-quality voice connection capability