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72 C2907M-D (4/05)
Glossary
10BASE-T IEEE 802.3 specification for 10 Mbs Ethernet
ARP Address Resolution Protocol
Baud Rate Data transmission rate
bps Bits per second, the actual data rate
Cat5 Cable Type of cable used on a LAN to connect computers, printers, and transmitters and receivers to a hub on
the network
CIF Common Intermediate Format; video format with 352 x 288 pixels
Default Gateway The router’s IP address (for example, 192.168.0.1)
DHCP Dynamic Host Configuration Protocol
DNS Domain Name Service
FTP File Transfer Protocol
Full Duplex Simultaneous data transmission in both directions
G.711, G.728 Standard audio coding algorithms defined by ITU-T
H.224 Standardized protocol for data communication and remote control
H.261 Standard motion video coding algorithm defined by ITU-T
H.323 Standard for M-JPEG video and audio compression defined by ITU-T
HTML Hypertext Markup Language
HTTP Hypertext Transfer Protocol
Hub A device on the network that connects multiple computers together to form a LAN
ICMP Internet Control Message Protocol
ID Identification: machine readable number or name
IGMP Internet Group Management Protocol
IEEE Institute of Electrical and Electronics Engineers
Internet Protocol The main protocol used on the Internet. Formsin conjunction with the Transfer Control Protocol (TCP)the TCP/IP
protocol suite.
IP See Internet Protocol
IP Address A unique four-byte number that identifies each unit on the Internet or network. Usually written in dotted
decimal notation with periods separating the bytes. This address is required to communicate on the network
(for example, 192.168.0.100)
ISDN Integrated Services Digital Network
ISP Internet Service Provider
JPEG Joint Photographic Expert Group (procedure to encode still images)
Kbps Kilobits per second; the actual data rate
LAN Local Area Network. Multiple computers linked together into a network to share information within a limited
geographic area (such as a building or a campus) controlled by a network operating system and using a
transport protocol.
MAC Address Media Access Control/hardware address