BreezeCOM PC-DS.11 User Manual Download Page 21

Appendix A. Radio Signal Propagation

BreezeNET DS.11 Series

A-15

User’s Guide

frequencies to each Access Point, or impose some restrictions on the use of
your wireless network.

2.

 

To be able to manage the Access Points via SNMP, every Access Point needs a
unique IP address. If you provide a DHCP or BOOTP service on your LAN
(and have sufficient free IP addresses available) this will be taken care of
automatically. If not, refer to Section 

Error! Reference source not found.

 for

further information on assigning IP addresses.

3.

 

Use the BreezeNET Management utility to configure the Network Settings to
reflect your situation.

4.

 

Select the radio channels of the Access Points according to your cell plan. See
Section 

Error! Reference source not found.

 for further information. Add

descriptive information about each Access Point for later reference.

3.2  More about Cells

Each Access Point in the network forms the center of a cell, or BSS. The Cells
should overlap slightly to guarantee seamless wireless connectivity everywhere.
Neighboring Access Points should preferably send and receive on different
channels for maximum throughput.

Creating a cell plan for your site can be complicated, and is usually done by experts
employing special measuring equipment.

Furthermore, the radio channels you may use depend on both the capabilities of the
PC-Cards you are deploying, as well as the regulations in your area.

The following table provides specifications for the main regulatory domains:

Regulatory

Domain

4.8.1.1 Area

Permissible

Channels

Predefined channels

Summary of Contents for PC-DS.11

Page 1: ...BreezeNET DS 11 Series PC DS 11 User s Manual May 1999 Cat xxxxxxxx Rev A...

Page 2: ...en permission of the copyright owner No part of this publication may be reproduced in any material form without the written permission of the copyright owner Trade Names BreezeNET and BreezeLINK are t...

Page 3: ...Company shall pay shipping charges to return the product to the buyer The Company warrants that the firmware designed by it for use with the unit will execute its programming instructions when properl...

Page 4: ...able below Integrated PCMCIA antenna 1 8cm 0 7 inches Optional PC Card 2dBi antenna 1 8cm 0 7 inches Professional Installer Antennas The indoor PC Card antennas use a unique connector and do not requi...

Page 5: ...Point 3 1 5 Where to Use DSSS 3 2 Installation 5 2 1 Installation for Windows 95B 5 2 2 Installation for Windows 98 6 2 3 Installation for Windows NT 6 1 1 Indoor Installation considerations 9 1 1 1 S...

Page 6: ...Table of Contents User s Manual vi BreezeNET DS 11 4 5 Drivers 18 4 6 Specific features 18 4 7 Physical Dimensions 18...

Page 7: ...following chapters Chapter 1 Introduction Explains how to use this manual and presents the BreezeNET DS 11 series Chapter 2 Installation Describes how to install the BreezeNET DS 11 series units Chap...

Page 8: ...ucture items in the DS 11 series line offer Flash updates Easy Installation The DS 11 series supports a true plug and play Transmit Diversity The DS 11 series supports a single or dual antennas divers...

Page 9: ...rd Ethernet LAN stations are wired to a common bus When one of the stations sends a message it assigns a destination address to the message and sends the message on the bus All stations on the bus hea...

Page 10: ...Radio Signal Propagation User s Manual A 4 BreezeNET DS 11 DSSS WBS DS 11 WBC DS 11 AP DS 11 AP DS 11 DSSS DSSS SA DS 11 SA DS 11 SA DS 11 Figure 1 1 A Typical DS 11 installation with indoor and outdo...

Page 11: ...IA slot on your computer Windows 95 detects the unit briefly displays the New Hardware Found window and then displays the Update Device Driver Wizard window 2 Insert the BreezeCOM drivers diskette and...

Page 12: ...option and press Next 4 Insert the BreezeCOM drivers diskette select the Floppy disk drives option and press Next 5 The installation wizard notifies you that the driver for the BreezeCOM PCMCIA Wirele...

Page 13: ...AN PC Card and press OK The PC DS 11 LAN Adapter Properties window appears Figure 4 1 PC DS 11 LAN Adapter Properties Window 5 The default settings are memory range D0000h to D3FFFh IRQ 11 In the foll...

Page 14: ...Appendix A Radio Signal Propagation User s Manual A 8 BreezeNET DS 11...

Page 15: ...selection antenna diversity antenna polarization construction materials and cell size Figure 0 2 BreezeNET LAN in a typical office environment 1 1 1 Site Selection Factors BreezeNET DS 11 wireless LAN...

Page 16: ...e external antennas and RF cable Heat Sources Keep the units well away from sources of heat such as radiators air conditioners etc 1 1 1 1 Site Selection for Access Points When positioning Access Poin...

Page 17: ...he doors or glass sections 1 1 2 Construction Materials A cell s coverage area is affected by the construction materials of the walls partitions ceilings floors and the furnishings of the cell Due to...

Page 18: ...core 15 20dB 15 150ft 50m Floor Ceiling heavy solid core 20 25dB 10 100ft 30m Note Take stairwells and elevator shafts into consideration when positioning Access Points There is no way to quantify the...

Page 19: ...offices partitioned into individual workspaces factory floor areas warehouses etc The suggested maximum distance between Access Point and workstation Standard AP DS 11 100m 300 ft Closed Indoor Areas...

Page 20: ...he Signal Quality tab to see what the signal quality is for your connection A signal quality above 80 is considered a good link If the signal quality is lower than 80 move closer to the Access point t...

Page 21: ...rding to your cell plan See Section Error Reference source not found for further information Add descriptive information about each Access Point for later reference 3 2 More about Cells Each Access Po...

Page 22: ...dio Signal Propagation User s Manual A 16 BreezeNET DS 11 FCC United States 1 11 1 6 11 DOC Canada 1 11 1 6 11 ETSI Europe except Spain and France 1 13 1 7 13 SPAIN Spain 10 10 FRANCE France 10 10 MKK...

Page 23: ...00 826 CE marked IEEE 802 11 standard for Wireless LAN All major networking standards including IP IPX 4 2 Environmental Operating temperature ambient 0 C to 55 C 32 F to 131 F Storage temperature 5 C...

Page 24: ...gain antenna Frequency range 2 4 2 4835 Ghz direct sequence spread spectrum Number of Channels Europe 13 3 non overlapping US 11 3 non overlapping France 4 1 non overlapping 4 5 Drivers Windows 95 98...

Page 25: ...Appendix A Radio Signal Propagation BreezeNET DS 11 Series A 19 User s Guide...

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