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G
LOSSARY
TIA
Telecommunications Industry Association
Transmission Control Protocol/Internet Protocol (TCP/IP)
Protocol suite that includes TCP as the primary transport protocol, and IP
as the network layer protocol.
User Datagram Protocol (UDP)
provides a datagram mode for packet-switched communications. It
UDP
uses IP as the underlying transport mechanism to provide access to IP-like
services. UDP packets are delivered just like IP packets – connection-less
datagrams that may be discarded before reaching their targets. UDP is
useful when TCP would be too complex, too slow, or just unnecessary.
UTP
Unshielded twisted-pair cable.
Very high data rate Digital Subscriber Line (VDSL)
A family of digital telecommunications protocols designed to allow high
speed data communication at data rates from below 1 Mbps to 52.8 Mbps
with corresponding maximum reach ranging from 4500 feet to 1000 feet
using 24 gauge twisted pair cable over the existing copper telephone lines
between end-users and service providers.
Very high data rate Digital Subscriber Line 2 (VDSL2)
VDSL2 as defined in ITU-T Recommendation G.993.2 is an enhancement
to the first VDSL standard (G.993.1). It supports transmission at a
bi-directional net data rate (the sum of upstream and downstream rates) of
up to 200 Mbps on twisted pair cables using a bandwidth of up to 30 MHz.
VDSL2 includes many enhancements, one of which is the addition of the
US0 band and methods to train echo cancellers and time domain
equalizers.
Glossary-6
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