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8 ABBREVIATIONS AND ACRONYMS
10BASE-T
IEEE 802.3 specification for 10 Mbps Ethernet over twisted pair wiring.
DHCP
Dynamic Host Configuration Protocol, An Ethernet protocol specifying how a
centralized DHCP server can assign network configuration information to multiple
DHCP clients. The assigned information includes IP addresses, DNS addresses,
and gateway (router) addresses.
IP
Internet Protocol, The main internetworking protocol used in the Internet. Used in
conjunction with the Transfer Control Protocol (TCP) to form TCP/IP.
IP Address
A four-byte number uniquely defining each host on the Internet. Ranges of
addresses are assigned by Internic, an organization formed for this purpose.
Usually written in dotted-decimal notation with periods separating the bytes (for
example, 192.168.1.10).
LAN
Local area network. A communications network serving users within a limited area,
such as one floor of a building. A LAN typically connects multiple personal
computers and shared network devices such as storage and printers. Although
many technologies exist to implement a LAN, Ethernet is the most common for
connecting personal computers.
MAC address
Media Access Control address. A unique 48-bit hardware address assigned to
every Ethernet node. Usually written in the form 00:03:47:D8:AE:3A.
Mbps
Megabits per second.
Netmask
A number that explains which part of an IP address comprises the network address
and which part is the host address on that network. It can be expressed in dotted-
decimal notation or as a number appended to the IP address. For example, a 28-bit
mask starting from the MSB can be shown as 255.255.255.192 or as /28 appended
to the IP address.
SCA
Serial Communication Adapter
UTP
Unshielded twisted pair. The cable used by 10BASE-T and 100BASE-Tx Ethernet
networks.
9 CONTACT INFORMATION
ABB AB
P.O. Box 1005
SE-611 29 NYKÖPING
Sweden
Tel: +46 - 155 295000
Fax: +46 - 155 288110
