3Com 11 Mbps manual Ceiling Mount Omnidirectional Antenna, Ceiling Mount Hallway Antenna

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12CHAPTER 2: INSTALLING THE ACCESS POINT

a design, be sure that it can pass signals used in the 2.5 GHz signal range. Many inexpensive units are available with F connectors, but these are typically designed for cable TV-UHF applications and may degrade the signals in the band used by the access point.

Ceiling Mount Omnidirectional Antenna

The ceiling-mount omnidirectional antenna (model number 3CWE492) is designed to cover large, open areas. It should be located at or near the center of the ceiling of a large, open area (such as an open office space divided into cubicles) to provide uniform coverage in all directions.

It is mounted by means of a single-hole stud mount, and so can be fixed easily to drop ceiling tiles or to a solid ceiling surface where cable routing access is available.

This antenna does not have an electrical connection between the mask mount and the coaxial cable shield. However, adding a lightning arrestor will correct this situation by grounding the outer shield as recommended. Some arrestor designs provide over-voltage protection for the signal sent down the cable. If you use such a design, be sure that it can pass signals used in the 2.5 GHz signal range. Many inexpensive units are available with F connectors, but these are typically designed for cable TV-UHF applications and may degrade the signals in the band used by the access point.

Ceiling Mount Hallway Antenna

The ceiling-mount hallway antenna (model number 3CWE497) has a bidirectional design that makes it ideal for use in long corridors. Its small size means it can provide extended WLAN coverage with minimum visibility.

This model includes a bracket for quick installation on standard one-inch ceiling rails. In addition, mounting holes allow for installation to any flat surface with screws.

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Contents Mbps Wireless LAN Access Point User Guide VersionSanta Clara, California 3Com CorporationBayfront Plaza 95052-8145Contents Conducting a Site Survey Regulatory Compliance Information Index Page Access Point 8000 Feature Summary IntroductionInstallation Overview Management toolsInstallation Overview Page Before You Begin Installing the Access PointDeciding Where to Place EquipmentAttached before the access point is installed ConnectingPlacing the Access Standard AntennaPlacing the Access Point SET Connecting Power Checking the LEDs Connecting to anEthernet Network As shown belowOmnidirectional Antenna Model number 3CWE490 3CWE492 3CWE497 3CWE498Ceiling Mount Omnidirectional Antenna Ceiling Mount Hallway AntennaDirectional Panel Antenna Side Installing Software Utilities Page Access Point Security AuthenticationUpper-Layer Access Point Security Support Using the Wireless802.1x Radius 802.1x AgentEAP-MD5 Using the Wireless 802.1x Agent Page 3Com 11 Mbps Wireless LAN Access Point 8000 Configuration Configuring the Access PointInstalling the Device ManagerClick Configure Configuration UsingDisplay help on the contents of that Management SystemSetting Network Properties Setting Data TransmissionProperties Setting Advanced Data TransmissionSetting up Security Saved passwords on the clients Setting up a UserAccess List ListDefining Radius Setting up a MACAddress Access List ServersSystem Log Setting up aDefining a Tftp Server Upgrading the SystemDefaults AdministrationPassword Resetting the AccessViewing Statistics Viewing System Status Configuring the Access Point Locations Conducting a Site SurveyChoosing Trial EnvironmentalSurvey Procedure SummarySetting up Equipment Site Survey ToolLaunching the Tool Interpreting Test ResultsSite Survey Menus LAN Site Survey windowPage Troubleshooting Symptom SolutionsContinue to configure the access point using the old IP Services Technical SupportOnline Technical Country Telephone Number Asia, Pacific Rim Latin America Country Telephone Number Europe, Middle East and AfricaEurope and South Africa North AmericaCountry Telephone Number Fax Number Regulatory Compliance Information European Community CE Index Snmp management

11 Mbps specifications

3Com 11 Mbps was a pivotal product in the evolution of networking technology, paving the way for wireless communications as we know them today. Introduced in the late 1990s, this wireless LAN (Local Area Network) product utilized the IEEE 802.11 standard, which defined the protocols for wireless networking. Operating at a maximum data rate of 11 megabits per second, it offered users a revolutionary means of connecting devices without the constraints of physical cabling.

One of the main features of the 3Com 11 Mbps solution was its simplicity and ease of installation. Unlike traditional wired networks that involved intricate setups of cabling and switches, 3Com facilitated a swift deployment process. Users could set up a wireless network in minutes, allowing organizations to enhance their productivity without extensive infrastructure.

The technology behind 3Com 11 Mbps was based on Direct Sequence Spread Spectrum (DSSS) modulation. This approach spread the signal over a wider frequency range, which improved resistance to interference from other devices. The 2.4 GHz frequency band used by this network supported compatibility with various devices, making it a flexible option for businesses and homes alike.

In terms of security, 3Com incorporated Wired Equivalent Privacy (WEP), which aimed to provide a level of data confidentiality comparable to that found in wired networks. However, WEP was later found to have vulnerabilities, leading to the development of more secure protocols like WPA (Wi-Fi Protected Access) and WPA2 in subsequent technologies.

Another characteristic that distinguished the 3Com 11 Mbps system was its ability to support multiple devices simultaneously. With the emergence of wireless laptops, printers, and other peripherals, a single access point could service several users without significant performance degradation.

Ultimately, the 3Com 11 Mbps was a significant stepping stone in the development of wireless technology. It showcased the potential of wireless networking and set the standard for future innovations. Although much faster and more secure wireless technologies have since emerged, the legacy of 3Com 11 Mbps resides in the fundamental advancements it brought to the realm of connectivity, making it easier and more accessible for users around the globe.
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