ZyXEL Communications Prestige 100L User Manual page 113

Prestige 100L IDSL Router
SSL (Secured
Socket Layer)
S/T-interface
STP
Straight
Through
Ethernet Cable
SUA
SVN
Switched 56
TCP
Telnet
Tempest
Terminal
Terminal
Software
TFTP
Twisted Pair
UDP
J
Technology that allows you to send information that only the server can read. SSL
allows servers and browsers to encrypt data as they communicate with each other.
This makes it very difficult for third parties to understand the communications.
A 4-wire ISDN circuit. The S/T interface is the part of a ISDN line that connects to the
terminal equipment.
Twisted-pair cable consists of copper-core wires surrounded by an insulator. Two
wires are twisted together to form a pair, and the pair form a balanced circuit. The
twisting prevents interference problems. STP (shielded twisted-pair) provides
protection against external crosstalk.
A cable that wires a pin to its equivalent pin. This cable connects two dissimilar
devices, for example, a data terminal equipment (DTE) device and a data
communications equipment (DCE) device. A straight through Ethernet cable is the
most common cable used.
Single User Account – The Prestige's SUA (Single User Account) feature allows
multiple user Internet access for the cost of a single ISP account – see also NAT.
(Subscriber Verification Number): The SVN is the number issued by the long distance
carrier to confirm the order for long distance service.
Digital service at 56 Kbps provided by local telephone companies and long distance
carriers. Similar to ISDN, Switched 56 traffic can travel over the same physical
infrastructure that supports ISDN. Switched 56, however, is an older technology with
decreasing significance.
Transmission Control Protocol handles flow control and packet recovery and IP
providing basic addressing and packet-forwarding services.
Telnet is the login and terminal emulation protocol common on the Internet and in
UNIX environments. It operates over TCP/IP networks. Its primary function is to allow
users to log into remote host systems.
Illegal interception of data from computers and video signals.
A device that allows you to send commands to a computer somewhere else. At a
minimum, this usually means a keyboard and a display screen and some simple
circuitry.
Software that pretends to be (emulates) a physical terminal and allows you to type
commands to a computer somewhere else.
Trivial File Transfer Protocol is an Internet file transfer protocol similar to FTP (File
Transfer Protocol), but it is scaled back in functionality so that it requires fewer
resources to run. TFTP uses the UDP (User Datagram Protocol) rather than TCP
(Transmission Control Protocol).
Two insulated wires, usually copper, twisted together and often bound into a common
sheath to form multi-pair cables. In ISDN, the cables are the basic path between a
subscriber's terminal or telephone and the PBX or the central office.
UDP is a connectionless transport service that dispenses with the reliability services
provided by TCP. UDP gives applications a direct interface with IP and the ability to
address a particular application process running on a host via a port number without
Glossary