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Pelco Manual C1977M-D (6/02) [ 69 ]
JPEG Joint Photographic Expert Group (procedure to encode still images)
LAN See Local Area Network
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 net-
work operating system and using a transport protocol
MAC Address Media Access Control/hardware address
NAT See Network Address Translator
Network Address
Translator A proposal for IP address re-use where the local IP address is mapped to a glo-
bally unique address
Picture A video picture that has been digitized at a particular resolution
PPP See Point-To-Point Protocol
Point-To-Point
Protocol A protocol allowing a computer using TCP/IP to connect directly to the Internet
Router A physical device that connects multiple LANs
QCIF Quarter CIF, video format with 176 x 144 pixels
Server Push A continuous stream sent from the transmitter to the web browser
Subnet mask A mask that explains which part of an IP address is the network address and
which part composes the host address. It is usually expressed in dotted-decimal
notation (for example, 255.255.255.192).
TCP Transfer Control Protocol
UDP User Datagram Protocol
URL Uniform Resource Locator
UTP Unshielded Twisted Pair
WAN See Wide Area Network
Wide Area Network Multiple LANs connected together, usually over a great distance