AP 4121Access Point
Mobilize Your Workplace with Standards-Based High-Performance
Wireless Networking
Symbol Technologies' Spectrum24®AP 4121Access Points
strategically placed throughout the enterprise are the wireless
connectivity point to an Ethernet network, or the hub of a
standalone wireless network.
Operating in the 2.4 GHz band at speeds up to a fast 11 Mbps,
Spectrum24 wireless connectivity mobilizes today's fast-paced
workforce with instant, untethered secure access to vital network
resources including corporate intranets, the Internet, information
databases, e-mail and other productivity and service applications.
And it eliminates the expense and time of wiring when IS
requirements call for temporary, ad hoc, small office and kiosk
networking.
Scalable Connectivity for Laptops, PDAs, Desktop and Mobile
Clients
The Spectrum24AP 4121Access Point supports up to 127 clients
with Wi-Fi-certified 802.11b client cards, including Symbol's PC
and CompactFlash™-format Wireless Networker™
cards for laptops and PDAs, and Spectrum24 Universal Serial Bus for
desktop and other USB-enabled equipment. Mobile voice and data
devices with embedded wireless connectivity cards also communicate
with the Spectrum24AP 4121Access Point. Adding more access points
scales your Spectrum24 wireless LAN to support additional
users.
Multi-Option Security Protects Data Clients
TheAP 4121Access Point features multi-mode security options to
meet data protection requirements: industry-standard 40 and 128 bit
WEP encryption; Symbol's Kerberos V5 based mobile security; or a
combination of these choices.
Dynamic Rate Scaling, High-Speed Roaming for Maximum Range and
Throughput Clients
The Spectrum24AP 4121Access Point dynamically rate scales,
transmitting data at 11 Mbps then automatically scaling to 5.5
Mbps, 2 Mbps, and 1 Mbps to ensure best range and throughput. As
signal strength decreases the transmit rate also decreases,
ensuring maximum range while maintaining data integrity. High-speed
roaming additionally ensures Spectrum24 clients seek the best
possible data rate for fastest throughput.
Mobile IP, International Roaming Clients
Mobile IP functionality allows theAP 4121to seamlessly roam
across routers as clients physically move from one subnet to
another. This ensures uninterrupted connectivity as associates move
throughout your facility. Support of the IEEE 802.11d standard for
international roaming enables simple, easy operation for
international use—the access point automatically adjusts to local
country and regulatory requirements.
Easy Administration and Network Management Clients
The Spectrum24AP 4121Access Point is administered using SNMP and
a number of bundled management tools for quick install,
maintenance, and upgrade. In addition, you can manage your entire
WLAN installation using Symbol's suite of wireless management
tools, including software for monitoring and controlling network
activity and performance.
Cost-Effective, Easy-to-Deploy Power for Wireless Access
Points
The Power-over-Ethernet Hub from Symbol Technologies delivers
operating power and data toAP 4121Access Points via standard
Category 5 Ethernet cable, eliminating the need for 110/220 volt AC
cable and power converters at each access point location. This
significantly reduces cabling and outlet requirements. A
single-port power connector is also available for small site
deployments.
Selection of Antennas
Symbol's selection of high-performance omni-directional (360°)
and directional (20° to 90°) antennas provide different coverage
patterns to meet site, application and power requirements.
End-to-End Wireless Mobility
The Spectrum24 family is the industry's leading, comprehensive
end-to-end wireless LAN solution. Only Symbol combines access
points, client connectivity cards, ruggedized mobile voice and data
devices and network management software as well as wireless
mobility planning and deployment services for high-performance
mobility solutions. This unique combination of benefits enables
your organization's end-to-end wireless mobile computing strategy
and optimizes the capture, computing and communication of data
crucial to business decision-making and success.
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11 Mbps direct sequence (DS) high data rate transmission
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Supports bandwidth-demanding applications and high-speed data
transmission
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IEEE 802.11b compliant; Wi-Fi certified
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Ensures interoperability among other Wi-Fi certified wireless
systems for investment protection and system architecture
flexibility
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High-Speed Roaming
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Clients seek Access Point with best signal and lowest data
traffic for fastest throughput
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Automatic Data Rate of 11, 5.5, 2 and 1 Mbps
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Optimized throughput, range and connectivity
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Multi-mode security: industry-standard WEP 40 and 128 bit
encryption; Symbol's Kerberos V5 based mobile security; or
combination
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Security options to meet data and network protection
requirements
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Kerberos V5 Open Security Standard based on the Network
Authentication Protocol developed by MIT
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Supports an enhanced level of security for mobile environments;
easy to implement; operating system and application independent
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IEEE 802.11d International Roaming
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Simple, easy operation for international use—simply select the
country of operation and theAP 4121Access Point automatically
adjusts to local country and regulatory requirements
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Point-to-Point Wireless Bridging
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Seamless bridging between separate Ethernet networks which
enables connectivity without cables
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Automatic Transmit Power Control
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Control of transmitted power to minimize interference in smaller
cells
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Mobile IP
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Enables multiple users to roam across routers/subnets and
between cells for uninterrupted connectivity
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System-wide upgrades from a single access point, via Flash
memory accessible by HTTP, serial, Telnet
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Fast and easy access point maintenance and upgrades
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Event logging, data packet tracing, SNMP alarm generation,
operating statistics, protocol and bandwidth filters for optimum
network management
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Diagnostic capabilities for simplified, optimal network
management
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Output up to 100 mW worldwide; range up to 1,500 ft./450 m
outdoors and up to295 ft./90 m indoors
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Extended high-speed communications and range indoors and out
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Support for up to 127 clients on a single access point;
scalable
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Single access point provides support for multiple mobile clients
and device types; adding an access point expands coverage and
capacity
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Auto Channel Select
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Ease of deployment and reliability: access point automatically
selects the best available channel for RF communications
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4121 Access Point Specifications Highlights
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Frequency Range:
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Worldwide product covering 2.4 to 2.5 GHz, programmable for
different country regulations
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Data Rate:
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11 Mbps per channel maximum
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Maximum Output Power:
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100 mW worldwide
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Power Management:
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Continuous Aware Mode and Power Saving Polling Mode
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Range:
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Data throughput scaled to support up to 1500 ft./450 m outdoors
and up to 295 ft./90 m indoors
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TX Maximum Radiated EIRP:
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FCC regulations part 15.247 in U.S.; ETS 300 328 in Europe; RCR
STD-33 in Japan
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Modulation:
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Direct Sequence Spread Spectrum (DSSS) with BPSK (1 Mbps), QPSK
(2 Mbps), and CCK (5.5 and 11 Mbps)
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TX Out-of-Band Emissions:
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FCC regulations part 15.247, 15.205, 15.209 in U.S.; ETS 300 328
in Europe; RCR STD-33 in Japan
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Operating Temperature:
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-4° to 158° F/-20° to 70° C
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Storage Temperature:
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-22° to 176° F/-30° to 80° C
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Client Support:
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Up to 127 clients
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Driver Software Support:
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Microsoft Windows 95/98, Windows NT 4.0, Windows CE 2.11 (only
for Symbol's PPT2740), Windows 2000, Windows ME; NDIS 4 AND 5
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Access Protocol:
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CSMA/CA
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Roaming:
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Virtually instantaneous
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