Interphase Tech iSPAN - Manual (Page 230)

210 Interphase Corporation
TCP is a reliable stream-delivery, virtual circuit connection-oriented
protocol that runs on top of IP. Telnet, FTP, and login use TCP connec-
tions.
TEI (Terminal Endpoint Identifier) ◆ The Terminal Endpoint Identi-
fier is used to identify a specific piece of equipment on an ISDN con-
nection.
Telco ◆ Telco is a popular abbreviation for telephone company. The
RBOCs are a subset of all telcos.
T Interface ◆ The interface point between the user premises network
termination (NT1) and a switching or concentration point (NT2) such
as PBX.
Tx ◆ Abbreviation meaning transmit, transmitter, or transmission.
U Interface ◆ The interface point between the user premises network
termination (NT1) and the local digital exchange.
UNI ◆ See User to Network Interface.
User to Network Interface (UNI) ◆ The interface between the ATM
end system (user) and the ATM network.
V.11 ◆ International interface recommendation electrically similar to
RS-422.
V.24 ◆ International interface recommendation that defines inter-
change circuits. Similar to and operationally compatible with RS-232.
(See
RS-232 .)
V.25 ◆ International interface recommendation for dial lines.
V.25 bis ◆ International interface recommendation for dial lines that
includes an auto-dial command and response language.
V.28 ◆ International interface recommendation that defines electrical
characteristics for the interchange circuits defined by V.24. Similar to
and operationally compatible with RS-232. (See
RS-232 .)
V.35 ◆ International recommendation for a wide-band interface
modem.
VN3/VN4 ◆ VN3 and VN4 are the French ISDN standards.
WAN (Wide Area Network) ◆ A network spanning a large geographi-
cal area that provides communications among devices on a regional,
national, or international basis.
Workstation ◆ Networked computer typically reserved for end-user
applications.