Telnet
A user command and TCP/IP protocol used for accessing remote PCs.
TFTP
Trivial File Transfer Protocol - A version of the protocol that has no directory or pass-
word capability. Depends on UDP and is used on local network.
Topology
The physical layout of a network.
Transparent
A transparent unit transmits all data without regard to special characters, etc.
Tx/Rx LED
Airlink data activity
UDP
User Datagram Protocol - A network protocol for transmitting data that does not require
acknowledgement from the recipient of the data that is sent.
Upgrade
To replace existing software or firmware with a newer version.
URL
Universal Resource Locator - The address of a file located on the Internet.
VIS
Vehicular Information Solutions. CalAmp’s name for a series of products specially de-
signed for mobile data.
WINIPCFG
A MS-Windows 98 or MS-ME utility that displays the IP information for a particular net-
working device.
WLAN
Wireless Local Area Network - A group of computers and associated devices that com-
municate with each other wirelessly.
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