T interface
From HandWiki
A T-interface or T reference point is used for basic rate access in an Integrated Services Digital Network (ISDN) environment. It is a User–network interface reference point that is characterized by a four-wire, 144 kbit/s (2B+D) user rate. Other characteristics of a T-interface are:
- it accommodates the link access and transport layer function in the ISDN architecture
- it is located at the user premises
- it is distance sensitive to the servicing Network termination 1
- it functions in a manner similar to that of the Channel service units (CSUs) and the Data service units (DSUs).[1]
The T interface is electrically equivalent to the S interface, and the two are jointly referred to as the S/T interface.[2]
See also
- R interface
- S interface
- U interface
References
- ↑
This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C".
- ↑ Becker, Ralph (2006-12-05). "ISDN Tutorial: Interfaces". ralphb.net. http://www.ralphb.net/ISDN/ifaces.html.
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