GLOSSARY

This appendix provides a glossary of wireless terminology.

802.11

Wireless standards developed by the IEEE that specify an "over-the-air"

 

interface for wireless Local Area Networks. 802.11 is composed of several

 

standards operating in different radio frequencies.

802.11b

802.11b is the international standard for wireless networking that operates in

 

the 2.4 GHz frequency range (2.4 GHz to 2.4835 GHz) and provides a

 

throughput of up to 11 Mbps.

802.11g

802.11g is the international standard for wireless networking that operates in

 

the 2.4 GHz frequency range (2.4 GHz to 2.4835 GHz) and provides a

 

throughput of up to 54 Mbps.

Access Point

An interface between a wireless network and a wired network. Access Points

 

can combine with a distribution system (such as Ethernet) to create multiple

 

radio cells (BSSs) that enable roaming throughout a facility.

Ad-Hoc mode

A wireless network composed of only stations and no Access Point.

Association service

An IEEE 802.11 service that enables the mapping of a wireless station to the

 

distribution system via an Access Point.

Asynchronous

Type of synchronization where there is no defined time relationship between

transmission

transmission of frames.

Authentication

The process a station uses to announce its identify to another station.

 

IEEE 802.11 specifies two forms of authentication: open system and shared

 

key.

Bandwidth

The amount of transmission capacity available on a network at any point in

 

time. Available bandwidth depends on several variables such as the rate of

 

data transmission speed between networked devices, network overhead,

 

number of users, and the type of device used to connect PCs to a network.

Basic Service Set

A set of 802.11-compliant stations that operate as a connected wireless

(BSS)

network.

Bits per second

A measurement of data transmission speed over communication lines based

(bps)

on the number of bits that can be sent or received per second.

BSSID

Basic Service Set Identifier. A 48-bit identifier used by all stations in a BSS in

 

frame headers. Usually a MAC address.

Clear channel

A function that determines the state of the wireless medium in an IEEE

assessment

802.11 network.

Client

Any computer connected to a network that requests services (files, print

 

capability) from another member of the network.

Direct Sequence

Combines a data signal at the sending station with a higher data rate bit

Spread Spectrum

sequence, which many refer to as a “chip sequence” (also known as

(DSSS)

“processing gain”). A high processing gain increases the signal’s resistance

 

to interference. The minimum processing gain that the FCC allows is 10, and

 

most products operate under 20.

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AirborneDirect™ Ethernet Bridge User's Guide

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Quatech, Inc. Confidential

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Quatech T802.11b/g 802.11g, Access Point, Ad-Hoc mode, Association service, Asynchronous, Transmission, Authentication
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WLNB-ET Series, ABDB-ET Series, ABDG-ET Series, T802.11b/g, WLNG-ET Series specifications

Quatech has established itself as a leader in the field of wireless technology, offering a wide array of products tailored for different industries. Among their notable offerings are the WLNG-ET Series, T802.11b/g, ABDG-ET Series, ABDB-ET Series, and WLNB-ET Series. Each of these series brings together unique features, advanced technologies, and exceptional characteristics designed to meet various connectivity needs.

The WLNG-ET Series is renowned for its robust performance in wireless networking. This series supports the 802.11b/g standards, which provide reliable wireless connectivity in industrial environments. The WLNG-ET modules are designed to withstand harsh conditions, making them ideal for deployment in manufacturing and transportation sectors. With a focus on versatility, these modules are easily integrated into existing systems while offering the ability to connect multiple devices securely.

The T802.11b/g series stands out with its exceptional data rates and robust communication capabilities. Designed for applications requiring flexible and reliable wireless networking, this series is particularly valuable for industrial automation applications. The T802.11b/g modules feature low power consumption, ensuring energy efficiency while maintaining high-performance levels.

Quatech's ABDG-ET Series offers an advanced solution for data transmission with a focus on secure and stable connections. Equipped with features like integrated encryption and advanced error detection, the ABDG-ET modules ensure data integrity and security. This series is compatible with a wide range of interfaces, allowing for easy integration into existing setups. It caters to applications that demand high data throughput and minimal latency.

Similarly, the ABDB-ET Series combines flexibility and reliability, featuring multiple connectivity options and a compact footprint. This series is optimal for applications where space is a constraint. The modules in this series are designed to provide seamless connectivity in challenging environments, ensuring that users experience minimal downtime.

Lastly, the WLNB-ET Series rounds out Quatech's offerings with a focus on network bridging. These modules facilitate the connection of Ethernet devices over a wireless network, extending the reach of networked devices without the need for extensive cabling. With adaptive technologies and user-friendly configurations, the WLNB-ET Series is ideal for businesses looking to expand their operational capabilities without compromising performance.

In summary, Quatech's WLNG-ET Series, T802.11b/g, ABDG-ET Series, ABDB-ET Series, and WLNB-ET Series represent a comprehensive approach to wireless networking, catering to a plethora of industrial applications. They embody advancements in technology, ensuring durability, security, and efficiency in operations.
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