Rice Lake CW-90X Over/Under/Washdown Checkweigher - Ethernet - Manual (Page 34)

30 Ethernet TCP/IP Card Installation Manual
LAN
Local Area Network - A communications network designed to connect computers in a limited geographic area
(typically under 10 km).
LRC
Longitudinal Redundancy Check.
MAC
Media Access Control - the protocol responsible for controlling which device can talk on the network at any
given time.
Mbps
Megabit per second - a data transfer rate of 1 million bits per second.
Manchester Encoding
A digital signaling scheme that uses signal transistors rather than levels to indicate data: (i.e. One = Negative
Transition and Zero = Positive Transition).
NIC
Network Interface Card - the computer card responsible for interfacing between the computer and the network.
RJ-45
The standard 8-pin connector for Ethernet.
SDLC
Synchronous Level Data Link Control - a bit-oriented framing system developed by IBM that is a super set of
HDLC.
SMB
Server Message Block - a Microsoft application layer protocol for file transfer between Windows servers and
workstations.
SMTP
Simple Mail Transfer Protocol - an application protocol used to send e-mails over the Internet.
SNMP
Simple Network Management Protocol - a standard for automatically checking the health of all network
equipment and reporting back to a network management system.
SPX/IPX
Sequenced Packet Exchange/Internetwork Packet Exchange - Network and transfer layer protocols (like TCP/IP)
that were developed by Novel.
STP
Shielded Twisted Pair.
TCP
Transmission Control Protocol - the transport layer of the TCP/IP protocol.
TCP/IP
Transmission Control Protocol/ Internet Protocol - a pair of protocols that look after getting a message through a
complex network (such as the Internet).
TELNET
A protocol that allows your desktop computer to communicate over a network as if it were a dumb terminal
attached to a main frame.
TOKEN-RING ™
The IBM network system using token passing for access control over ring wiring. Now considered obsolete.