Data Sheet- 3CRWE90096A
DATA SHEET
3Com 11 Mbps Wireless LAN
Building-to-Building Bridge
®
Key Benefits
Top Performance
The 3Com 11 Mbps Wireless LAN
building-to-building bridge is based on
IEEE 802.11b technology to ensure
consistent top performance.*
®
Long-range,
cost-effective
wireless
connectivity
between sites
Flexibility
This bridge delivers both point-topoint and point-to-multipoint
connections at various ranges, depending on which antenna you choose.
Reliability
Support for dynamic rate shifting
helps keep your network connections
constantly available and reliable.
reliable, high-performance connections between your hard-to-wire sites.
Extend your network to previously
hard-to-reach users without leasing
data circuits or having to lay cables.
Simply attach a bridge to your existing wired network and another to the
new building. Connect multiple
buildings, portable or temporary
classrooms, and temporary networks.
And if your company’s network
requirements or location change, the
wireless building-to-building bridge
can be easily relocated.
High Performance
The simple-to-use management interface helps you manage all bridges
from anywhere on the same subnet on
the network, or use Telnet to remotely
manage this bridge over the Internet.
With a wireless 3Com building-tobuilding bridge, you get high-speed,
long-range connections. In fact, you’ll
get throughput exceeding that of two
dedicated T1 lines. Plus, you won’t
have to worry about expensive leasedline service that’s actually slower than
this wireless bridge.
Security
Flexible Connections
Support for 40- and 128-bit WEP
encryption keeps network data and
transmissions safe from a security
breach. Plus, this bridge uses encapsulation techniques to help protect data.
With point-to-point and point-tomultipoint connectivity options, the
3Com wireless building-to-building
bridge lets you transfer information
between two buildings or multiple
buildings across campus. What’s
more, you can choose the antenna
option that best fits your needs—get
transmissions up to 1300 meters with
omni-directional antennas, and 4100
meters using sector panel antennas.
Manageability
Product Overview
As part of our wireless LAN family,
the 3Com 11 Mbps Wireless LAN
building-to-building bridge provides
*Data throughput can vary depending on several factors, including network traffic load, distance between bridges, and antennas used.
3COM® 11 MBPS WIRELESS LAN BUILDING-TO-BUILDING BRIDGE
Cost Effective
Figure 1. Point-to-multipoint connections from
one to multiple buildings using omni-directional
antennas.
Figure 2. Point-to-point connections from one
building to another using sector panel antennas.
Simple Management
The easy-to-use graphical interface
reduces management burdens.
Manage all of your bridges from
anywhere on the same subnet, or do it
over the Internet using telnet. Easily
align antennas with real-time signal
strength reporting and usage data.
Plus, default settings make configuration simple—all you have to do is
hook them up.
Now you can connect all of those
hard-to-wire locations for less. With a
3Com building-to-building bridge,
you don’t have to worry about running expensive and tough-to-install
leased lines or fiber-optic cabling. Just
connect your wired LANs to wireless
building-to-building bridges, or
connect a remote building-to-building
bridge to a 3Com 11 Mbps Wireless
LAN Access Point 6000 or a 3Com
AirConnect Wireless LAN Access
Point. In minutes, you’ve interconnected a remote site with the central
site. Best yet, this hardware investment can pay for itself, when
compared to the money you would
have spent on leased-line service.
®
One-Year Limited Warranty
3Com warrants your wireless
building-to-building bridge to be in
good working order for one year
while owned by the original end user.
Customer Support
Quick access to support information
is available on 3Com’s Web site at
www.3com.com
When to Buy
Our building-to-building bridge is
ideal for organizations who:
Complete Security
When you choose the 3Com wireless
building-to-building bridge, you don’t
have to worry about security. Support
for both 40- and 128-bit WEP encryption lets users exchange information
privately. Plus, our bridge uses a
3Com proprietary protocol to encapsulate data. This protocol ensures the
wireless bridge will not interfere with
VPN or other protocols—so your
encrypted data passes right through.
2
• Are looking for a cost-effective
alternative to leased lines.
• Don’t want to invest in laying
expensive and tough-to-install
cables since their network requirements or location may change.
• Want a simple way to connect
remote and hard-to-wire locations—
between office buildings that aren’t
already connected to one another,
portable classrooms and cross-campus office buildings, and buildings
separated by other structures such
as bridges or freeways.
3COM® 11 MBPS WIRELESS LAN BUILDING-TO-BUILDING BRIDGE
Networking on a
Tight Budget
Consider this hypothetical scenario:
Jill, the principal of Fairmont High, is
excited about the new addition to the
school addition—three computer labs,
15 classrooms, and more. But that’s two
years off. Classrooms are bursting at
the seams. More students are on the
way. And 50 new computers need to be
networked. Is it possible on the
school’s budget? Yes.
Using our building-to-building
bridges, she turned one of three new
portable classrooms into a computer lab
Product Features
and gave the others network access—
without running cables. She connected
one bridge to the school network and
another to a 3Com 11 Mbps Wireless
LAN Access Point 6000 in the portable
computer lab. Now all of the new computers, including those in portable
classrooms, have access to network
resources and the Internet.
Just like you’d expect—a simply
powerful solution from 3Com.
Fast data transfer rates
Allow bridging speeds much faster than
leased-line service.
Excellent range with antenna options
Provide wireless links up to 1300 meters
using omni-directional antennas, and 4100
meters using sector panel antennas.
Point-to-point and point-to-multipoint
support
Lets users transfer information between
two buildings or multiple buildings across
the campus.
Dynamic rate shifting
Keeps network connections available and
reliable by automatically determining
transfer rates based on signal strength and
environmental conditions.
MAC layer encapsulation
Ensures LAN protocols are transparent to
the user. Secures data over the wireless link.
40- and 128-bit WEP encryption
Allow users to exchange information in
full privacy.
Transparent to VPN protocols
Enables encrypted data to pass without
interception.
GUI management interface
Helps you to manage all bridges from anywhere on the same subnet—also displays
signal strength monitoring and usage data.
Remote management
Allows IT administrators to manage
the bridge remotely, using the Internet
and Telnet.
Firmware upgradeable design
Provides convenient local and remote
firmware updates from anywhere on the
same subnet, reducing IT workload and
helping to lower total cost of ownership.
Protocol independent
Supports all networking protocols,
including TCP/IP, IPX, and more.
3
3COM® 11 MBPS WIRELESS LAN BUILDING-TO-BUILDING BRIDGE
Specifications
802.11b Data Rates Supported
Receive Sensitivity
Bridging Protocol
11, 5.5, 2, 1 Mbps
11 Mb: -81 dBm
5.5 Mb: -84 dBm
2 Mb: -85 dBm
1 Mb: -87 dBm
MAC layer encapsulation
Range
Transmit and receive information up to 4100 meters between
wireless building-to-building
bridges, depending on the
antenna selected.
Network Standard
IEEE 802.11b
Available Transmit Power
Settings
300 mw, typically
Antenna
10BASE-T
Multiple antenna options let
you ensure the optimal signal
strength for your environment.
Network Architecture Types
Encryption
Bridge 802.3 to 802.11b
40- and 128-bit WEP
encryption, shared key
Network Connection Type
Number of Users/Bridge
Unlimited
Wireless Bridges/LAN
Unlimited
Security
VPN pass through
LEDs
DSSS
Power: green
Wireless: green when
associated; yellow when
transmitting/receiving
Ethernet: green when
connected; yellow when activity
is detected
Alert: amber
Serial: green when RX; yellow
when TX
Operating Channels
Remote Configuration Support
1 through 11 (U.S.), 1 through
13 (Worldwide)
GUI, Telnet
Frequency Band
2.4 GHz
Wireless Medium
DSSS
Media Access Protocol
CSMA/CA
Modulation
Dimensions
Length: 251 mm (9.9 in)
Width: 157 mm (6.2 in)
Thickness: 25 mm (1 in)
Safety Compliance
Canada, the U.S.:
UL1950/CSA 22.2
Europe: CE Marked
Radio/Electromagnetic
Conformance Compliance
US: FCC Part 15B&C
Canada: Industry Canada
RSS-210
European Community: ETS 300
328, ETS 300 826
Australia: C-Tick
Environmental Operating
Ranges
Operating temperature:
-20 to 55˚C
Storage temperature: -20 to 70˚C
Altitude: Up to 3 km.
Humidity: 10 to 95%
noncondensing
Service and Support
One-year limited warranty
Local Configuration
GUI, serial console
Ordering Information
Product Name
For use in…**
Order Number
3Com® 11 Mbps Wireless LAN
building-to-building bridge
Canada, U.S.
3CRWE90096A
Australia, New Zealand,
Hong Kong, Singapore
3CRWE90096A-A1
Europe, Latin America
3CRWE9006A-E1
Product Accessories
For use in…**
Order Number
3Com 4 dBi omni-directional antenna,
up to 2600 meters; point-to-multipoint
Canada, U.S., Australia, New Zealand,
Hong Kong, Singapore, Europe, Latin America
3CWE490
3Com 8 dBi omni-directional antenna,
up to 4100 meters; point-to-multipoint
Canada, U.S., Australia, New Zealand,
Hong Kong, Singapore, Europe, Latin America
3CWE491
3Com 13 dBi sector panel antenna,
up to 4100 meters; point-to-point
Canada, U.S., Australia, New Zealand,
Hong Kong, Singapore, Europe, Latin America
3CWE495
3Com 18 dBi sector panel antenna, up to
4100 meters (typically paired with 50 ft
cable accessory); point-to-point
Canada, U.S.
3CWE496
3Com 6-Foot Antenna Cable
Canada, U.S., Australia, New Zealand,
Hong Kong, Singapore, Europe, Latin America
3CWE480
3Com 20-Foot Antenna Cable
Canada, U.S., Australia, New Zealand,
Hong Kong, Singapore, Europe, Latin America
3CWE481
3Com 50-Foot Antenna Cable
Canada, U.S., Australia, New Zealand,
Hong Kong, Singapore, Europe, Latin America
3CWE482
*Data throughput can vary depending on several factors, including network traffic load, distance between bridges, and antennas used.
**If your region isn't listed, contact your local 3Com Sales office for the availability date.
3Com Corporation, 5400 Bayfront Plaza, P.O. Box 58145, Santa Clara, CA 95052-8145
To learn more about 3Com products and services, visit www.3com.com. 3Com Corporation is publicly traded on Nasdaq
under the symbol COMS.
Copyright © 2001 3Com Corporation. All rights reserved. 3Com, AirConnect, and XJACK are registered trademarks and the
3Com logo is a trademark of 3Com Corporation. All other company or product names may be trademarks of their respective
companies. While every effort is made to ensure the information given is accurate, 3Com does not accept liability for any
errors or mistakes which may arise. All specifications are subject to change without notice.
400698-002 08/01
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