Terminology; Parts Of The Client Adapter; Radio - Cisco AIR-PCM342 Hardware Installation Manual
Aironet wireless lan adapters
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Also See for AIR-PCM342:
- Installation and configuration manual (166 pages) ,
- Installation and configuration manual (132 pages)
Table of Contents
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Chapter 1
Product Overview
Terminology
Parts of the Client Adapter
Radio
OL-0795-01
Throughout this document, the following terms are used:
client adapter – Refers to all three types of adapters
•
PC card, LM card, or PCI client adapter – Refers to only a specific adapter
•
•
workstation (or station) – Refers to a computing device with an installed
client adapter
The client adapter is composed of three major parts: a radio, a radio antenna, and
two LEDs.
The client adapter contains a direct-sequence spread spectrum (DSSS) radio that
operates in the 2.4-GHz license-free Industrial Scientific Medical (ISM) band.
The radio transmits data over a half-duplex radio channel operating at up to 11
Mbps.
DSSS technology causes radio signals to be transmitted over a wide frequency
range, using multiple frequencies simultaneously. The benefit of this technology
is its ability to protect the data transmission from interference. For example, if a
particular frequency encounters noise or interference or both, enough redundancy
is built into the signal on other frequencies that the client adapter usually will still
be successful in its transmission.
Cisco Aironet Wireless LAN Adapters Hardware Installation Guide
Parts of the Client Adapter
1-3
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Table of Contents
Troubleshooting
