Appendix D - Definitions - CalAmp Viper 100 User Manual

APPENDIX D – DEFINITIONS
Access Point. Communication hub for users to connect to a
LAN. Access Points are important for providing heightened
wireless security and for extending the physical range of
wireless service accessibility
Airlink. Physical radio frequency connections used for
communications between units
ARP (Address Resolution Protocol). Maps Internet address to
physical address
Backbone. The part of a network connecting of the bulk of the
systems and networks together - handling the most data
Bandwidth. The transmission capacity of a given device or
network
Browser. An application program providing the interface to
view and interact with all the information on the World Wide
Web
COM Port. Both RS-232 serial communications ports of the
Viper SC wireless radio modem. Configured as DCE and
designed to connect directly to a DTE
Default Gateway. A device forwarding Internet traffic from
your local area network
DCE (Data Communications Equipment). This designation is
applied to equipment like modems. DCE is designed to connect
to DTE
DHCP (Dynamic Host Configuration Protocol). A networking
protocol that allows administrators to assign temporary IP
addresses to network computers by "leasing" an IP address to a
user for a limited amount of time, instead of assigning
permanent IP addresses
DNS (Domain Name Server). Translates the domain name into
an IP address
Domain. A specific name for a network of computers
DTE (Data Terminal Equipment). This designation is applied to
equipment such as terminals, PCs, RTUs, PLCs, etc. DTE is
designed to connect to DCE
Dynamic IP Address. A temporary IP address assigned by a
DHCP server
Ethernet. IEEE standard network protocol that specifies how
data is placed on and retrieved from a common transmission
medium
Firewall. A set of related programs located at a network
gateway server that protects the resources of a network from
users on other networks
Firmware. The embedded programming code running a
networking device
Fragmentation. Breaking a packet into smaller units when
transmitting over a network medium that cannot support the
original size of the packet
FTP (File Transfer Protocol). A protocol used to transfer files
over a TCP/IP network
Gateway. A device interconnecting networks with different,
incompatible communications protocols
HDX (Half Duplex). Data transmission occurring in two
directions over a single line, using separate Tx and Rx
frequencies, but only one direction at a time
HTTP (HyperText Transport Protocol). Communications
protocol used to connect to servers on the World Wide Web
IPCONFIG. A Windows 2000 and XP utility that displays the IP
address for a particular networking device
MAC (Media Access Control). The unique address a
manufacturer assigns to each networking device
MTU (Maximum Transmission Unit). The largest TCP/IP packet
hardware can carry
NAT (Network Address Translation). NAT technology translates
IP addresses of a local area network to a different IP address for
the Internet
Network. A series of computers or devices connected for the
purpose of data sharing, storage, and/or transmission between
users
Network speed. Bit rate on the RF link between units in a
network
Node. A network junction or connection point, typically a
computer or work station