Motorola WT41N0 Integrator Manual page 165

transmissions where erroneous packets are not retransmitted. IP provides the routing mechanism. TCP/IP is a
routable protocol, which means that all messages contain not only the address of the destination station, but the
address of a destination network. This allows TCP/IP messages to be sent to multiple networks within an
organization or around the world, hence its use in the worldwide Internet. Every client and server in a TCP/IP
network requires an IP address, which is either permanently assigned or dynamically assigned at startup.
Telnet. A terminal emulation protocol commonly used on the Internet and TCP/IP-based networks. It allows a user at a
terminal or computer to log onto a remote device and run a program.
Terminal Emulation. A "terminal emulation" emulates a character-based mainframe session on a remote
non-mainframe terminal, including all display features, commands and function keys. The WT41N0 Series supports
Terminal Emulations in 3270, 5250 and VT220.
TFTP. (Trivial File Transfer Protocol) A version of the TCP/IP FTP (File Transfer Protocol) protocol that has no directory
or password capability. It is the protocol used for upgrading firmware, downloading software and remote booting of
diskless devices.
TKIP. (Temporal Key Integrity Protocol) A wireless encryption protocol that periodically changes the encryption key,
making it harder to decode.
Tolerance. Allowable deviation from the nominal bar or space width.
Transmission Control Protocol/Internet Protocol. See TCP/IP.
TLS. (Transport Layer Security) TLS is a protocol that ensures privacy between communicating applications and their
users on the Internet. When a server and client communicate, TLS ensures that no third party may eavesdrop or
tamper with any message. TLS is the successor to the Secure Sockets Layer (SSL).
Trivial File Transfer Protocol. See TFTP.
TSR. See Terminate and Stay Resident.
U
UDP. (User Datagram Protocol) A protocol within the IP protocol suite that is used in place of TCP when a reliable
delivery is not required. For example, UDP is used for real-time audio and video traffic where lost packets are simply
ignored, because there is no time to retransmit. If UDP is used and a reliable delivery is required, packet sequence
checking and error notification must be written into the applications.
U
Visible Laser Diode (VLD). A solid state device which produces visible laser light.
W
Warm Boot. A warm boot restarts the wearable terminal by closing all running programs. All data that is not saved to
flash memory is lost.
Glossary - 9