Network Card User Manual
Table Of Contents
- Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for MS-DOS
- Contents
- Preface
- Audience
- Purpose
- Organization
- Conventions
- Related Publications
- Obtaining Documentation
- Obtaining Technical Assistance
- Introduction to the Wireless LAN Adapters
- Parts of the Client Adapter
- Radio Ranges
- Data Transparency and Protocols
- System Configurations
- Coverage Options
- Safety Information
- Unpacking the Client Adapter
- Inserting the Client Adapter into a Computing Device
- Removing the Client Adapter
- Driver Overview
- Windows for Workgroups 3.11 NDIS2 Installation
- DOS NDIS2 Installation
- ODI Driver Installation
- Additional Requirements and Features
- Driver Keywords and Settings
- Site Survey and Link Test
- Loading New Firmware Versions
- DOS Utilities
- Accessing the Latest Troubleshooting Information
- Interpreting the Indicator LEDs
- Technical Specifications
- Channel Sets
- Maximum Power Levels and Antenna Gains
- Manufacturers Federal Communication Commission Declaration of Conformity Statement
- Department of Communications – Canada
- European Community, Switzerland, Norway, Iceland, and Liechtenstein
- Declaration of Conformity for RF Exposure
- Guidelines for Operating Cisco Aironet Wireless LAN Client Adapters in Japan
- Explosive Device Proximity Warning
- Lightning Activity Warning
- Installation Warning
- Circuit Breaker (15A) Warning

1-6
Cisco Aironet Wireless LAN Adapters Installation and Configuration Guide for MS-DOS
OL-1744-02
Chapter1 Overview
System Configurations
Security Features
The Cisco Aironet Wireless LAN Client Adapter employs Direct Sequence Spread Spectrum
Technology, previously developed for military anti-jamming and low probability of intercept radio
systems.
The access point must be set to the same SSID as all other devices on the wireless infrastructure. Units
with a different SSID cannot directly communicate with each other.
System Configurations
The Cisco Aironet Wireless LAN Client Adapter can be used in a variety of network system
configurations. Access points provide connections to your Ethernet networks or act as repeaters
increasing wireless communication range. The maximum communication range is based on how you
configure your wireless infrastructure.
Examples of some common system configurations are shown on the pages that follow, along with a
description of each.
Ad Hoc Wireless LAN
An ad hoc wireless LAN (Figure 1-1) is the simplest wireless LAN configuration. In a wireless LAN,
using an ad hoc network operating system (such as Windows for Workgroups), all devices equipped with
the PC Card can be linked together and communicate directly with each other
Figure 1-1 Ad Hoc Wireless LAN
NDIS2 MS-DOS, Windows 3.xx
Packet MS-DOS, Windows 3.xx
Table 1-1 Protocols Supported
Drivers Operating Systems
47520