Introduction to T1
We are experiencing a breakneck growth in the interconnection of personal computers, terminals and telephones in the business environment.
T1 technology is proving to be a cost-effective means of linking voice and data, both inter-office and intra-office, and serves as an alternative to high speed modems for data transport.
There is significant discussion these days about "T1 Gateways" and "T1 trunks" as the cost from the various phone companies of these services goes down.
Users are discovering that it costs less to have a T1 trunk than a series of leased telephone lines in a point-to-point topology. This increase in the use of T1 requires a fundamental understanding of the technology.
This introduction is meant to teach you about the functions and technology of T1.
Services and Quality
Channel Banks and Formats
Signal Shapes and Codes
DACS (Digital Access Cross-Connect)
D4 Channel Bank
PBX (Private Branch Exchange)
CSU (Channel Service Unit)
FT Series Fractional T1 DSU/CSU
Definition of dBdsx