Mobility Electronics NP644 User Manual

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NP644 IEEE 802.11g  Wireless Network USB Adaptor 

YML787 Rev1

ISM Band:  

The FCC and their counterparts outside of the U.S. have set aside 

bandwidth for unlicensed use in the ISM (Industrial, Scientific and

Medical) band.  Spectrum in the vicinity of 2.4GHz, in particular, is 

being made available worldwide.

MAC Address:  

Media Access Control Address is a unique hex number assigned 

by the manufacturer to any Ethernet networking device, such 

as a network adapter, that allows the network to identify it at the 

hardware level.

Multicasting:  

Sending data to a group of nodes instead of a single destination.

Multiple Bridge: 

One of the additional AP operating modes offered by 54Mbps 

Access Point, which allows a group of APs that consists of two or 

more APs to connect two or more Ethernet networks or Ethernet 

enabled clients together. The way that multiple bridge setups is 

based on the topology of Ad-Hoc mode.

Node:  

A network junction or connection point, typically a computer or 

workstation.

Packet:  

A unit of data routed between an origin and a destination in a 

network.

PLCP:  

Physical layer convergence protocol

PPDU:  

PLCP protocol data unit