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Glossary and Index
IP-9610
71
TS (Transport Stream)
The stream used in the multi-programs
multiplexing, standardized in MPEG-2 systems.
The transport stream offers features for error
correction for transportation over unreliable media,
and is used in broadcast applications and ATM
telecommunication.
TTL (Time To Live)
Abbreviation of time to live, which indicates the
survival time of a packet in a network. If a packet
sent to a network happens to enter a loop because
of a setting error on a router, it will not survive
forever but will be discarded when the time
specified in the Time To Live field of the IP header
is reached.
UDP (User Datagram Protocol)
Abbreviation of User Datagram Protocol, which is
a TCP/IP transaction protocol used for specific
applications such as remote network management
and naming service access
Unicast
Communication with a station at a single address
(i.e., most general one-to-one communication)
UTP Cable
Abbreviation of unshielded twisted pair. It is a
unshielded pair of wires twisted together, and
these wires are used for Ethernet cabling and
other purposes.
VFD
Vacuum Fluorescent Display. Because VFD emits
by itself, the contrast is clear rather than LCD. Wide
temperature range for operation makes less
influence to functions.
10BASE-T
LAN that uses unshielded twisted-pair (UTP)
cables and complies with the IEEE 802.3
standard. A 10BASE-T connection uses a
concentrator called a hub. It is widely used
because special cabling work is not necessary
and wiring can be done easily. The maximum
length of cable wiring is 100 m.
100BASE-TX
One of the 100BASE LAN standards (also
called Fast Ethernet), it supports a transfer rate
of 100 Mbps. Other 100BASE standards are
10BASE-T4 and 100BASE-FX, and the differ-
ence is the type of cable used. 100BASE-TX
uses unshielded twisted-pair (UTP) cables. It
also uses the RJ-45 connector, which is similar
to the modular jacks used for telephones.
1000BASE-T
One of the Gigabit Ethernet standards. It
standardized as IEEE802.3ab in 1999, uses the
UTP cables of the category 5 (CAT5) and the
enhanced category (CAT5e). The maximum
transmission distance is 100m and it supports
the topology of the hubbing, star and so on.
3G-SDI
A family of interfaces used in the high-definition
video transmission required for 1080p and digital
cinema.With a transmission capacity as high as
3 Gbps, 3G-SDI enables transmission of 1080/
60p signals through a single BNC cable.