Aironet BR2000-E Uživatelská příručka

Aironet Wireless Communications, Inc. • 367 Ghent Road, Suite 300P.O. Box 5292 • Fairlawn, Ohio 44334-0292User’s GuideWireless BridgesWireless LAN-to-

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1IntroductionDesigned for linking networks together—typically in differentbuildings—Aironet Wireless Bridges offer a low-costalternative to installing

2Wireless Bridge OverviewAironet Wireless Bridges enable you to connect two or moreToken Ring and/or Ethernet networks to create a singlevirtual LAN.

3Supporting Mixed Network TopologiesTo support mixed topologies, a Token Ring Bridge would beinstalled to support a local Token Ring network and anEth

4If the existing network to which you are connecting theBridge is not Token Ring- or Ethernet-based, you can installa Token Ring or Ethernet Network I

5System ConfigurationsYou can use wireless bridges in many different networkconfigurations. The way in which you configure your net-work determines th

6Point-to-Point Wireless BridgeThe Point-to-Point Wireless Bridge configuration (shown inthe following figure) uses two units to bridge two individual

7Point-to-Multipoint Wireless BridgeWhen connecting three or more LANs (usually in differentbuildings), each building requires an Aironet Wireless Bri

8The following figure shows an example of a Point-to-Multipoint configuration. Packets sent between WorkstationA and Workstation B are forwarded by th

9Network Extension with RepeatersYou can use bridges configured as repeaters to extend therange of a wireless network beyond that of a single radiohop

Aironet Wireless Communications, Inc.No part of this document may be reproduced or transmitted in any means,electronic or mechanical, for any purpose,

10Wireless Bridge with Wireless End NodesYou can configure a Wireless Bridge to send and receiveradio signals from in-building, radio-equipped devices

11Radio CharacteristicsAironet Wireless Bridges use a radio modulation techniqueknown as Spread Spectrum Transmission. Spread Spec-trum radios broadca

12Wireless Network—Aironet’s Advanced Radio Local AreaNetwork (ARLAN) is designed as shown in the followingfigure. This network structure shows that t

13Bridge—A device that connects two or more networks tocreate a virtual network.Remote Node—A non-Root Unit that communicates byradio with the Root Un

14Understanding the Radio NetworkThe preceding figure shows a simplified graphic illustrationof a Radio Network. In this example shown, the Root Unitd

15Before You BeginUnpack your Wireless Bridge. Make sure the following itemsare present and in good condition:• Wireless Bridge (Ethernet model)• 120V

16Environment openness: The less cluttered and open yourwork environment, the greater the Bridge’s radio range.Building materials: The floor-to-floor

17Installing the HardwareUse the following procedures to install the Wireless Bridgehardware.Connecting the Antenna1. With the Bridge powered off, att

18Connecting the Console Port CableConnecting the Bridge’s console port to a terminal or to aPC running a terminal emulation program lets you configur

19Connecting the 10Base2 Cable1. Make sure the Bridge is turned off.2. Connect one end of the Ethernet cable to one end of aBNC T-connector (if applic

iManufacturers Federal Communication CommissionDeclaration of Conformity StatementModels : BR1000-E, BR2000-E, BR2040-EManufacturer :Aironet Wireless

20Connecting the 10Base5 Cable1. Make sure the Bridge is turned off.2. Connect the Transceiver Connector to the Bridge’s10Base5 AUI port, and slide th

21Connecting the 10BaseT (Twisted Pair) Cable1. Make sure the Bridge is turned off.2. Plug one end of an RJ-45 connector into the Bridge’s10BaseT soc

22Connecting the Power PackAfter you have made the network connection, connect thePower Pack to the Bridge.1. Connect the small plug on the end of the

23Viewing the Bridge’s Top Panel IndicatorsThe Bridge has three Indicators on its top panel as shownbelow.• Radio Indicator—This indicates radio traff

24Configuring the Wireless BridgeUse the Bridge’s Console Port and the Console System toconfigure the unit to communicate with the rest of your net-wo

25• If you are using an ANSI compatible terminal, type "y"at the prompt and press Enter. Note: An ANSI terminal shows you formatted text and

265. Go to the next section, "Setting ConfigurationParameters." Setting Configuration Parameters To configure the Wireless Bridge to commun

27Configuring the Radio NetworkThe first parameter to configure is the SID for the bridge’sradio. The SID is a unique, 6-digit, hexadecimal number tha

283. Decide what to do next:• If you want to assign a specific hexadecimal SID tothe Bridge, type the hexadecimal number (less thanffffff) at the prom

29The prompt: "Enter frequency in MHz, one of [2412,2427, 2442, 2457, 2465]:" appears.8. Type the appropriate frequency from the list provid

iiDepartment of Communications—CanadaCanadian Compliance StatementThis Class B Digital apparatus meets all the requirements of the CanadianInterferenc

30Setting Ethernet ParametersThe Ethernet port has three parameters (Active, Size, andPort) whose default settings are already correct for mostbasic i

31 Where to Go from Here Please ask your Aironet representative for the BR1000-E/BR2000-E/BR2040-E Technical Reference Manual. Read the Technical Ref

32 Appendix A: Serial Cable Pinout A typical Wireless Bridge serial cable is a 9-pin cable. Thefollowing diagram shows its pinout.

33 Serial Port Pinout 9-Pin AT Name Abbr. DTE 3 Transmit Data TD Output> 2 Receive Data RD Input< 7 Request to Send RTS Output> 8 Cl

34Appendix B: Ethernet RJ-45 CableThe Ethernet cable is configured as a Hub device. See thefollowing figure.10Base5Pin 1 GND2 CN+3 TX+4 GND5 RX+6 GND

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iiiDeclaration of ConformityAironet Model Number:BR2000-EApplication of Council Directive: 89/336/EECApplication of Council Directive: 72/23/EECCE Typ

ivDeclaration of ConformityAironet Model Number:BR2040-EApplication of Council Directive: 89/336/EECApplication of Council Directive: 72/23/EECCE Type

vSafety InformationThe FCC with its action in General Docket 93-62, 1997, hasadopted a safety standard for human exposure to radio frequency(RF) elect

viTable of ContentsIntroduction......1Wireless Bridge Overview...

viiWhere to Go from Here ..............31Technical Support ..............