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Glossary of Terms
ILX34-AENWG
♦
POINT I/O Platform
Setup Guide
Wireless Point I/O Adapter
ProSoft Technology, Inc.
Page 73 of 79
July 31, 2009
Subnet Mask
A mask used to determine what subnet an IP address belongs to. An IP address
has two components: the network address, and the host (node or device)
address. For example, consider the IP address 150.215.017.009. Assuming this
is part of a Class B network (with a subnet mask of 255.255.0.0), the first two
numbers (150.215) represent the Class B network address, and the second two
numbers (017.009) identify a particular host on this network.
Switch
A network device that cross connects devices or network segments. A switch
provides each sender/receiver the full network bandwidth (2x in full duplex
mode), reduces collisions, and increases determinism.
T
TCP
The transport control protocol is a more reliable but slower transport protocol
than UDP. It is used for explicit (not time critical) messaging in EtherNet/IP.
TCP/IP
The transmission control protocol/internet protocol is a transport-layer protocol
(TCP) and a network-layer protocol (IP) commonly used for communication
within networks and across internetworks.
Transaction
An exchange of request and data and response and data.
U
UART
Universal Asynchronous Receiver/Transmitter
UDP
The user datagram protocol (UDP) is a transport protocol that provides a very
simple but fast capability to send datagrams between two devices. It is used for
I/O (implicit) messaging in EtherNet/IP.
W
WAP
Wireless Application Protocol. A set of standards to enable wireless devices to
access internet services, such as the World Wide Web and email.
WDS
Wireless Distribution System. Enables access points to communicate with one
another in order to extend the range of a wireless networks. Used in 802.11g
based access points.
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