User's Manual
Table Of Contents
- FCC and IC Statements
- Copyright Statement
- Preface
- 1 Introduction
- 2 Using BC|Commander or BCAdmin
- 3 Deploying the BreadCrumb Wireless Network
- 4 BreadCrumb LX/LX3 USB Firmware Upgrade
- 5 Troubleshooting
- Appendix A: Error and Warning Codes
- Appendix B: Using Pole Mount Bracket
Rajant Corporation BreadCrumb
®
LX/LX3 User Guide
03-100101-001 Version: 2.91
• Devices placed too far away or in RF “shadows” may experience total loss of connection.
• RF transmit power and receive sensitivity are important in determining the distances over
which the device will be effective.
• When placing a BreadCrumb device, check the connection status to the nearest available
device using either the BreadCrumb device’s status LED (described in section 1.3.5 Status
LED), or the BC|Commander/BCAdmin management application. If the connection is poor
or non-existent, attempt to relocate the BreadCrumb device closer to another device until an
acceptable connection is obtained. If a poor connection or no connection is made at even
relatively close distances, you should refer to Chapter 5 Troubleshooting.
• When the connection quality is found to be acceptable from BC|Commander /BCAdmin, the
distance of the BreadCrumb device from the network can be increased until an optimal
balance between distance, connectivity and tactical placement is achieved.
3.3.3 Weather
Precipitation and fog also act as obstructions blocking the propagation of the wireless network’s
radio waves.
Light fog or precipitation may result in noticeable degradation of wireless network performance.
Heavy precipitation or fog may result in severe performance degradation and possible loss of
network connectivity.
If the performance of a well functioning network is degraded by worsening weather conditions, it
may be advisable to add BreadCrumb devices into the network to act as short haul repeaters to
counteract the effects of the weather. An alternative is to move the devices closer together.
3.3.4 Interference
RF interference can degrade network performance and can come from many different sources,
including:
• Other BreadCrumb devices that are placed too closely together.
• Other RF devices such as microwave devices, cordless phone base stations, radio
transmitters, other wireless networks, jamming devices, etc.
• Metal surfaces such as fences and building can cause radio waves to be reflected, causing
multipath interference.
Caution
Plan the BreadCrumb Wireless Network to minimize the effects of RF interference.
3.3.5 Placement of BCWN Components
The placement of BreadCrumb devices has a major impact on maximum effective range, and
therefore network performance. The components must be elevated above the surrounding terrain to
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