ProSoft Technology RLXIB-IHN-W-E - Manual (Page 159)

RLXIB-IHN-WC ♦ 802.11n Glossary of Terms
Weatherproof Industrial Hotspot User Manual
ProSoft Technology, Inc. Page 159 of 159
July 9, 2012
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Panel Antenna
An antenna type that radiates in only a specific direction. Panel antennas are
commonly used for point-to-point situations. Sometimes called Patch antennas.
Parabolic Antenna
An antenna type that radiates a very narrow beam in a specific direction.
Parabolic antennas offer the highest gain for long-range point-to-point situations.
Peer-to-Peer Network
Each radio in a Peer-to-Peer network has the ability to receive data from - and
transmit data to - any other radio in the network.
Point-Multipoint (Broadcast) Network
A network type where a single master radio sends data to every remote radio in
the network. This is done repeatedly until every remote radio individually receives
and acknowledges the data. Each remote radio sends pending data to the
master radio that receives and acknowledges data sent from each remote. In this
configuration, there are multiple remote radios referenced to a single master
radio.
Point-Multipoint (Modbus) Network
A network with a single Master radio and multiple Remote radios. The devices
cabled to the radios communicate through the Modbus standard protocol. The
Master radio sends data to a Remote radio based on the Modbus address of the
Modbus device. The data is only sent to the single Remote device based on its
address. Each Remote radio sends its data only to the Master radio. The Master
and Remote radios acknowledge that data was received correctly.
Point-to-Multipoint
A wireless network in which one point (the access point) serves multiple other
points around it. Indoor wireless networks are all point-to-multipoint, and long-
range wireless networks that serve multiple clients usually employ either a single
omnidirectional antenna or multiple sector antennas.
Point-to-Point Network
A network consisting of a single Master radio and a single Remote radio. All data
from the Master is received and acknowledged by one Remote. All data from the
single Remote is received and acknowledged by the Master radio.
Poll
A method of electronic communication.
Power Supply
Device that supplies electrical power to the I/O chassis containing the processor,
coprocessor, or other modules.