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SITE PLANNING AND INSTALLATION

 

2.9

ORIENTING THE HUB ANTENNA

 

The ideal location for the transmitting antenna is from four feet 
above the ßoor to one foot below the ceiling. The antenna should 
be located so that all transceivers are within the maximum 
80 meter radius service area. 

To service more than one ßoor will require either a second wireless 
hub, or extending the Ethernet cables through the ßoor to the 
individual workstations. 

 

2.10 CONFIGURING THE WIRELESS HUB SOFTWARE

 

See Chapter 3 for conÞguration information. After conÞguration, 
align the components as described in Section 2.11.

 

2.11 ALIGNING FreeLINK COMPONENTS

 

You can orient the FreeLINK components prior to loading network 
software, as the wireless hub transmitter and transceivers establish 
a wireless communications protocol that is independent of data 
from the Ethernet network. 

To orient the transceiver antenna, follow this procedure:

¥

Locate the transmitting antenna and transceivers as described 
in the preceding sections of this chapter. Then, with both the 
transmitter and transceiver(s) powered on, check the LEDs on 
top of each transceiver unit. See Figure 2-9 on page -9.

¥

The green Link Status LED may be ßashing, indicating that a 
link with the transmitter is not yet established. One or more of 
the yellow Signal Level LEDs may be ßashing at this time also.

¥

Rotate the antenna 360 degrees slowly as you observe the 
yellow Signal Level LEDs. Note the direction in which the 
maximum number of Signal Level LEDs are illuminated. All 
Signal Level LEDs need not be lit to establish a link.

 

FreeLink.Ch2.fixed  Page 8  Wednesday, April 19, 2000  3:59 PM

Содержание FLIU-1

Страница 1: ...C A B L E T R O N S Y S T E M S I N C Desktop Network Interface Products FreeLINK WIRELESS LAN INSTALLATION GUIDE ...

Страница 2: ......

Страница 3: ...ER INCLUDING BUT NOT LIMITED TO LOST PROFITS ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES Copyright May 1993 Cabletron Systems Inc 35 Industrial Way P O Box 5005 Rochester NH 03867 0505 All Rights Reserved Printed in the United States of America Order Number 90308...

Страница 4: ...ii NOTICE ...

Страница 5: ...1 8 1 6 SpeciÞcations 1 9 1 6 1 Wireless Hub 62 Wireless Transceiver FLIU 1 FLIU 8 1 9 CHAPTER 2 SITE PLANNING AND INSTALLATION 2 1 System Components 2 1 2 2 Transceiver Installation 2 2 2 3 Connecting Transceiver Interface Units 2 2 2 4 Transceiver Serial Numbers 2 3 2 5 FreeLINK Wireless Ethernet Hub 2 4 2 5 1 Wireless Hub Antenna 2 5 2 6 Wireless Hub Chassis 2 6 2 7 Hub Ethernet Connections 2 7...

Страница 6: ...iv CONTENTS APPENDIX A TROUBLESHOOTING APPENDIX B TRANSCEIVER SERIAL NUMBERS ...

Страница 7: ...so that you follow sequential chapters as you install the Cabletron FreeLINK Wireless LAN System Chapter 1 Introduction discusses the capabilities of the Wireless LAN system and lists its operating and environmental speciÞcations Chapter 2 Site Planning and Installation contains instructions for planning the wireless LAN site and installing the hardware components of the FreeLINK Wireless LAN Syst...

Страница 8: ...mber The Wireless LAN software version that appears on the front of the software diskette Any other relevant information pertaining to the site conÞguration etc You can contact Cabletron Systems Technical Support by Phone 603 332 9400 FAX 603 335 4743 BBS 603 335 3358 4 lines available AppleLink D3355 The Cabletron folder in Third Party Vendors folder contains latest Cabletron network drivers Cabl...

Страница 9: ...e 1 1 below shows the components of the FreeLINK Wireless LAN System Figure 1 1 FreeLINK Wireless LAN System Components Signal Quality Link 10BASE T Ports Antenna Cable AC Power Cord FLIU 8 Multi User Interface Unit Connection to Network Backbone LED Indicators Antenna FreeLINK Wireless Hub Antenna FreeLINK 62 Wireless Ethernet Hub Transmit ...

Страница 10: ...tremely difÞcult to interfere with or jam the signal There are two techniques used in spread spectrum frequency hopping and direct sequence Most wireless network systems today including FreeLINK use direct sequence Spread spectrum radio and FreeLINK in particular resists detection and interference and allows multiple systems to operate in the same area hence permitting overlapping FreeLINK hubs Th...

Страница 11: ...on power level the FreeLINK system is 50 times lower than the ANSI standard for exposure to RF electromagnetic Þelds The ANSI numbers are for continuous exposure and due to the small duty cycle of the FreeLINK LAN system radiating only during packet transmission the actual radiated power is signiÞcantly less than the levels stated above From all current scientiÞc information these RF energy levels...

Страница 12: ...within the wireless LAN to maximize data throughput The hub remotely controls power levels for the transceivers to compensate for near far transmission signal levels The wireless hub consists of the main chassis and an antenna assembly connected by a cable Within the main chassis are a ßoppy disk drive a switch selectable RJ 45 port and AUI port and an RS232 port for connection to a modem 1 3 7 Th...

Страница 13: ... Wireless LAN software conÞgures the wireless hub It also enables the wireless hub to manage network operations and track the serial numbers and Wireless LAN addresses of up to 62 wireless transceivers Transceivers not recognized by the hub will be denied access to the wireless LAN NOTE You will need an IBM PC or compatible and DOS 3 0 or greater to conÞgure the FreeLINK Software Diskette However ...

Страница 14: ...ss hub The Signal Quality LEDs enable the user to correctly orient the transceiver antenna for best signal reception The Link Status LED indicates that a transceiver has established a link with the wireless hub The Transmit LED indicates that the transceiver is transmitting data to the wireless hub Figure 1 2 Wireless Transceiver LEDs Signal Quality Link LED Indicators Antenna FreeLINK Wireless Tr...

Страница 15: ...es F 90 humidity non condensing Interface IEEE 802 3 compliant 10BASE T RJ 45 uncrossed AUI female Modulation Direct Sequence Spread Spectrum with Code Division Multiple Access Data Rate 5 7 Mbps Encoding 16PSK with Trellis Encoding Communications Spread Spectrum Medium Wireless Hub Transmitting 5 725 5 850 GHz Receiving 2 400 2 458 GHz Wireless Int Unit Transmitting 2 400 2 458 GHz Receiving 5 72...

Страница 16: ...Page 1 10 INTRODUCTION ...

Страница 17: ...2 Wireless Transceivers The FreeLINK System Components are shown in Figure 2 1 the Wireless Hub at top and the Wireless Transceiver Interface Unit at bottom Figure 2 1 FreeLINK System Components Signal Quality Link 10BASE T Ports Antenna Cable AC Power Cord FLIU 8 Multi User Interface Unit Connection to Network Backbone LED Indicators Antenna FreeLINK Wireless Hub Antenna FreeLINK 62 Wireless Ethe...

Страница 18: ...line with the antenna 2 3 CONNECTING TRANSCEIVER INTERFACE UNITS Connect a data cable to either the RJ 45 port or the AUI port on the interface unit Both ports of the single user interface unit are initially enabled however if an AUI cable from a powered device is connected to the AUI port the RJ 45 port will be disabled The AUI port allows you to use an external Ethernet transceiver to connect to...

Страница 19: ...er connecting the data interface cables attach the power cord to the interface module and plug it into a 110 Volt outlet 2 4 TRANSCEIVER SERIAL NUMBERS As you set up each transceiver you should record the last six digits of the serial number imprinted on the bottom of the transceiver see Figure 2 4 You will need the transceiver serial numbers to conÞgure the Wireless LAN software for the wireless ...

Страница 20: ...hernet Hub with transmitting antenna is shown in Figure 2 5 below Figure 2 5 FreeLINK Wireless Ethernet Hub and Antenna FLIU 1 Use these six digits AUI 10BASE T Port Select Switch Fan 110v 220v AC Power Select AC Power In AC Power Out RJ 45 10BASE T AUI Connector Antenna Connectors RS232 Serial Port Modem Manufacturing Test Only Wireless Hub Antenna ...

Страница 21: ...ffectively The antenna can transmit and receive in 360 degrees of rotation focusing on an area from 30 degrees above to 30 degrees below the horizon The horizon in this case is the vertical center of the transmitting antenna see Figure 2 6 Wireless Hub Antenna Service Area The Wireless Hub Antenna should be positioned from a minimum of four feet above the ßoor to a maximum of one foot below the ro...

Страница 22: ...ive the transmitting antenna interface board and the Ethernet interface board Figure 2 7 shows the front and rear views of the FreeLINK Wireless Hub On the rear panel of the hub chassis are a 25 pin D sub connector for attaching the antenna cable as well as two Ethernet ports There is an RJ 45 port for 10BASE T Ethernet connection and an AUI port for connecting an AUI cable to an external Ethernet...

Страница 23: ...isted pair cables You can connect the wireless hub to an external Ethernet transceiver with a standard AUI cable 2 8 HUB SETUP Connect the antenna cable to the 25 pin D connector on the wireless hub rear panel see Figure 2 7 with the attached captive screws Position the wireless hub so that it is accessible to the wired Ethernet backbone LAN or network segment The wireless hub antenna should be po...

Страница 24: ...to loading network software as the wireless hub transmitter and transceivers establish a wireless communications protocol that is independent of data from the Ethernet network To orient the transceiver antenna follow this procedure Locate the transmitting antenna and transceivers as described in the preceding sections of this chapter Then with both the transmitter and transceiver s powered on chec...

Страница 25: ...it 30 seconds Then observe the green Link LED It should stop ßashing and illuminate solidly indicating a link with the transmitter Figure 2 9 Transceiver LEDs If you fail to establish a link see Appendix A Troubleshooting for helpful information Signal Quality Link LED Indicators Antenna FreeLINK Wireless Transceiver Transmit ...

Страница 26: ...Page 2 10 SITE PLANNING AND INSTALLATION ...

Страница 27: ...The FreeLINK Wireless LAN software is supplied on a 31Ú2 inch DOS format ßoppy diskette We suggest that you make a copy of the diskette to use for software installation and put the original in a safe place Installation of system software is a two step process The software is Þrst conÞgured using a PC and then after conÞguration it is installed into the wireless hub To conÞgure the FreeLINK Wireles...

Страница 28: ...lt Gateway address Network Mask A number in x x x x notation deÞning a subnetwork If you are not using a subnetted network leave the default set to 0 0 0 0 When you have Þnished setting these parameters press Enter to move to the Select Modem Speed screen You use the Select Modem Speed screen to set the wireless hubÕs serial port parameters The serial port is used for out of band network managemen...

Страница 29: ...s are deÞned below List This command displays a list of the names and serial numbers of the wireless transceivers conÞgured on your network Add This command lets you add a wireless transceiver to your network Add displays three Þelds Next Available Transceiver Number Name Field and Serial Number Field Delete This command lets you delete a wireless transceiver from your network Choosing Delete disp...

Страница 30: ...utility Reload This command reloads the Wireless Transceiver List from the XCVRS CNF Þle enabling you to modify the Þle since the last time you saved it End This command exits the current screen Press F10 to exit the conÞguration program If you are not installing SNMP management you can exit the program at this time by pressing F10 You can install the conÞgured software in the wireless hub at this...

Страница 31: ... HubÕs Community List screen uses seven commands You use the Right Arrow and Left Arrow keys to highlight the command you want to execute Press Enter to execute the command The commands are deÞned as follows List This command displays the name index and access level of each user in the wireless hubÕs community list Add This command lets you add a community name The information Þelds for this comma...

Страница 32: ...n any of Þve available channels Channel Select a channel from 1 to 5 The default channel is 1 If multiple hubs are in place use a different channel for each hub When you have selected a channel for the wireless hub press Enter to register your selection You can press F10 to exit the conÞguration program now if your conÞguration is correct At this time you can place the conÞgured diskette into the ...

Страница 33: ...all outlet to make sure that it is delivering power to the Wireless transceiver Problem The wireless transceiverÕs green communications link LED has been fast blinking for more than a minute and its amber signal strength LEDs are also blinking Solution Move the wireless transceiver closer to the wireless hub Problem The wireless transceiverÕs green communications link LED continues to blink slowly...

Страница 34: ...Page A 2 TROUBLESHOOTING ...

Страница 35: ...TRANSCEIVER SERIAL NUMBERS Page B 1 APPENDIX B TRANSCEIVER SERIAL NUMBERS Record the serial number and location of each transceiver in the following table Tcvr No Serial No Owner Location ...

Страница 36: ...Page B 2 TRANSCEIVER SERIAL NUMBERS Tcvr No Serial No Owner Location ...

Страница 37: ...ng FLIU 1 transceiver interface unit 2 3 connecting FLIU 8 transceiver interface unit 2 2 connecting transceiver interface units 2 2 D data security 1 4 DeÞne Hub Parameters screen 3 2 DeÞne the Wireless HubÕs Community List screen 3 4 Delete command 3 3 E End command 3 4 3 6 F FreeLINK architecture 1 5 G getting help 1 2 H Hub SETUP 2 7 I installing system software 3 1 IP Address 3 2 L Link Statu...

Страница 38: ...size 2 5 SETUP 3 1 Signal Quality LEDs 2 8 SNMP network management 3 1 spread spectrum technology 1 4 system components 2 1 system LED indicators 1 8 T transceiver LEDs 2 9 Transceiver Names Ethernet Addresses screen 3 3 troubleshooting A 1 W Wireless Hub 1 6 front and rear views 2 6 Wireless Hub Antenna 2 5 Wireless Hub Chassis 2 6 Wireless LAN System components 1 3 Wireless LAN System Features 1...

Страница 39: ......

Страница 40: ...P N 9030833 May 1993 35 Industrial Way P O Box 5005 Rochester New Hampshire 03867 0505 ...

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