Rajant BreadCrumb ME3 Manuale utente
FCC and IC Statements
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the CC Rules. These limits are designed to provide reasonable protection
against harmful interference when the device is operated in a commercial environment. This device
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance
with this instruction manual, may cause harmful interference to radio communications. Operation of
this device in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at their own expense.
This Class A digital apparatus complies with Canadian ICES-003 and RSS-210 rules.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 et CNR-210 du Canada.
WARNING: To satisfy CC R exposure requirements a minimum safe distance of 20 cm must be
maintained between this device and all persons while the device is operating.
CAUTION: To reduce potential radio interference to other users, the antenna type and its gain
should be chosen so that the equivalent isotropically radiated power (EIRP) is not more than that
permitted for successful communication.
CAUTION: Changes or modifications not expressly approved by Rajant Corp. could void the user's
authority to operate the equipment.
Copyright Statement
You may use the software provided with the products only on personal computers owned by the
purchasing individual or entity, and may not use, load, or run any such software on any network or in
any type of service bureau, time-sharing operation, or non-purchasing individual or entity's
equipment.
BCAdmin and BCAPI are trademarks; Rajant, the Rajant logo, BreadCrumb, Instamesh, BC|
Commander, and Bring Your Network with You! are registered trademarks of Rajant Corp. in the
United States and certain other countries.
BreadCrumb® ME3 User Guide
Copyright © 2009–2010 Rajant Corp. All rights reserved.
Rajant Corporation BreadCrumb® ME3 User Guide
03-100116-001 Version: 1.02
able of Contents
Preface....................................................................................................................................v
Purpose and Scope.............................................................................................................v
User Information..................................................................................................................v
Related Documentation.......................................................................................................v
1 Introduction.......................................................................................................................1
1.1 What is a BreadCrumb?...............................................................................................1
1.2 Mobility through Meshing.............................................................................................2
1.2.1 Mesh – A Definition...............................................................................................2
1.2.2 BreadCrumbs Mesh by Channel and ESSID.......................................................2
1.3 Description of BreadCrumb ME3.................................................................................3
1.3.1 Radio.....................................................................................................................4
1.3.2 Enclosure..............................................................................................................
1.3.3 18-Pin Amphenol Connector.................................................................................6
1.3.3.1 Power............................................................................................................6
1.3.3.2 Ethernet.........................................................................................................6
1.3.3.3 USB...............................................................................................................7
1.3.4 Antenna Connector...............................................................................................7
1.3. Status LED............................................................................................................7
1.3.6 Zeroize Keys and Restore Factory Defaults / LED Configuration Switch............8
1.3.6.1 Zeroize Keys and Restore Factory Defaults.................................................8
1.3.6.2 LED Configuration.........................................................................................9
1.3.7 Internal Battery...................................................................................................10
2 Using BC|Commander....................................................................................................11
3 Deploying the BreadCrumb Wireless Network............................................................13
3.1 Addressing.................................................................................................................13
3.1.1 BreadCrumb Device Addresses.........................................................................13
3.1.2 DHCP..................................................................................................................13
3.2 Channel Assignments................................................................................................13
3.3 Physical Placement and other Considerations..........................................................14
3.3.1 Line-of-Sight.......................................................................................................14
3.3.2 Distance..............................................................................................................14
3.3.3 Weather..............................................................................................................1
3.3.4 Interference.........................................................................................................1
3.3. Placement of BCWN Components.....................................................................1
3.4 Deployment Guidelines and Methodology.................................................................1
3.4.1 Deployment Guidelines......................................................................................16
3.4.2 Deployment Methodology...................................................................................16
4 BreadCrumb ME3 USB Firmware Upgrade...................................................................19
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BreadCrumb® ME3 User Guide Rajant Corporation
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5 roubleshooting..............................................................................................................21
.1 Sporadic Network Connectivity..................................................................................21
.2 BreadCrumb Device Cannot Connect to BCWN.......................................................22
Appendix A: Error and Warning Codes..........................................................................A-1
List of Figures
Figure 1: All BreadCrumbs Use the Same ESSID.................................................................3
Figure 2: ESSID of BreadCrumb C Changes to "lonely.".......................................................3
Figure 3: BreadCrumb ME3 Enclosure Features...................................................................
Figure 4: 18-Pin Amphenol Connector...................................................................................6
List of ables
Table 1: ME3 Model versus Radio Frequency.......................................................................4
Table 2: 2.4 GHz Radio Channels and Frequencies..............................................................4
Table 3: 900 MHz Radio Channels and Frequencies............................................................
Table 4: Status LED Color Codes..........................................................................................8
Table : Default and alternate display states of the Status LED............................................9
Table 6: Sporadic Network Connectivity Issues...................................................................21
Table 7: BreadCrumb to BCWN Connectivity Issues...........................................................22
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Rajant Corporation BreadCrumb® ME3 User Guide
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Preface
Purpose and Scope
This manual provides information and guidance to all personnel who are involved with and use
Rajant Corporation’s BreadCrumb ME3 product.
This manual begins with an introduction to the BreadCrumb Wireless Network (BCWN). It then
characterizes the features of the BreadCrumb ME3. inally, it describes common deployment
scenarios and provides concise step-by-step instructions for each scenario.
User Information
The user of this manual is encouraged to submit comments and recommended changes to improve
this manual. Please send any comments or changes to [email protected]. Be sure to include the
version number of the manual you are using and please provide the page numbers related to your
comments wherever possible.
Related Documentation
or additional BreadCrumb ME3 information, refer to these documents:
•BC|Commander® User Guide: This document contains information on the BC|Commander
management application, which is used to configure BreadCrumbs before or during a
deployment.
•BreadCrumb® Video Guide
•BreadCrumb® VLAN Guide
•Troubleshooting ange User Guide
•F Component Installation and Verification in BreadCrumb® Networks
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Rajant Corporation BreadCrumb® ME3 User Guide
03-100116-001 Version: 1.02
1 Introduction
Rajant Corporation's (http://www.rajant.com) BreadCrumb ME3 utilizes the 802.11g wireless
networking standard to form a wireless mesh network. The network is mobile, self-integrating, self-
meshing, self-healing, full-duplex and secure. The focus is on flexibility, adaptability, and
simplicity.
The BreadCrumb Wireless Network (BCWN) is intended for rapid deployment of a broadband
wireless network into a situation or “hot zone.” The network can be deployed as a stand-alone
wireless network, or bridged to another network (such as the Internet) utilizing available reach-back
communication links (such as a DSL, cable, or satellite modem).
BreadCrumb ME3 provides high bandwidth applications to stream video, audio as well as data over
large distances. The network traffic can be secured by using different security features offered by
the BCWN. This makes the network optimal for tactical deployments as well as emergency
response situations since it offers robustness, stability and ease of setup in mission critical activities.
Note Throughout this document, unless otherwise stated, the terms Breadcrumb and ME3
are used to refer to ajant BreadCrumb ME3.
1.1 What is a BreadCrumb?
A BreadCrumb is an IEEE 802.11 (Wi- i) and Ethernet compatible networking device which has the
capacity to connect to other BreadCrumbs or networking devices to form a BreadCrumb network. A
BreadCrumb is specifically designed for the following scenarios:
Temporary Wireless Networks
Networks that must be established quickly and with minimal effort for short-term use (e.g., a
network established to provide irst Responder support at the site of a disaster).
Mobile Wireless Networks
Networks in which the network infrastructure itself is mobile, in addition to client devices (e.g., a
convoy viewing a video stream from a UAV).
Wireless Network Extension
Networks in which a wireless network must be quickly extended around or through obstacles that
block wireless communications (e.g., urban canyon networks, tunnels/caves, etc.)
Wired Network Extension
Networks in which two or more wired LANs at different locations must be connected wirelessly
(e.g., to securely connect combat service support computers with logistics bases)
Any Combination of the Above
Most BreadCrumb deployments include elements from more than one of the above scenarios.
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In many cases, BreadCrumbs will perform all of these tasks as shipped with no configuration
necessary at all, providing an instant TAN (Tactical Area Network). Moreover, because
BreadCrumbs use industry-standard 802.11 communications, client devices such as laptops or
handheld computers require no special hardware, software, or configuration to access a BCWN.
1.2 obility through eshing
The key component to a BCWN is a technique known as meshing. While this is generally handled
automatically by BreadCrumbs, complex deployment scenarios require a basic understanding of how
BreadCrumbs establish and maintain a mesh.
1.2.1 Mesh – A Definition
A mesh is a collection of network devices (in our case, BreadCrumbs), each of which is linked to one
or more other BreadCrumbs. Data can move between BreadCrumbs via these links, possibly passing
through several intermediate BreadCrumbs before arriving at its final destination.
The intelligence of a BCWN is in how it adapts rapidly to the creation or destruction of the links in
the mesh as devices are moved, switched O or ON, blocked by obstructions, interfered with by
other devices, or otherwise affected. This adaptation takes place automatically and immediately as
needed.
Note
Although all BreadCrumbs can be access points, most access points do not provide
mesh capability. Traditional access points simply allow wireless devices within
range to connect to a wired network; they do not extend range through other access
points.
1.2.2 BreadCrumbs Mesh by Channel and ESSID
Two BreadCrumbs establish a mesh link to each other when they share both a radio channel and an
ESSID. An ESSID is essentially a name for a wireless network. By default, BreadCrumb ME3 uses
the ESSID “breadcrumb54-v10.” Also by default, BreadCrumb ME3-09 model devices use channel
6, and BreadCrumb ME3-24 model devices use channel 11.
The following examples illustrate the use of channels and ESSIDs:
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Example 1:
Suppose you have three BreadCrumbs, called A, B, and C. Each has two radios. BreadCrumb A’s
radios are on channels 1 and 8, B’s are on 8 and 11, and C’s are on 1 and 11. All three BreadCrumbs
are using the default ESSID of "breadcrumb54-v10." Assuming that all three BreadCrumbs are
within radio range of one another, the network will be connected, as shown below:
Example 2:
Now suppose that you change the ESSID of BreadCrumb C to "lonely". The network will adjust to
this change, resulting in the following configuration:
Note that BreadCrumb C can no longer communicate with A or B, and vice versa.
1.3 Description of BreadCrumb E3
BreadCrumb ME3 is a portable, battery operated, wireless device deployable in almost any
environment. It is light in weight, offers one external antenna and a rechargeable battery, and is
designed to be completely mobile as worn by an individual.
3
Figure 1: All BreadCrumbs Use the Same ESSID.
CHANNEL 1
CHANNEL 11
CHANNEL 8
RADIO 2
BREADCRUMB B
RADIO 1
RADIO 1
BREADCRUMB C
RADIO 2RADIO 1
BREADCRUMB A
RADIO 2
Figure 2: ESSID of BreadCrumb C Changes to "lonely."
CHANNEL 8
RADIO 2
BREADCRUMB B
RADIO 1
RADIO 1
BREADCRUMB C
RADIO 2RADIO 2
BREADCRUMB A
RADIO 1
BreadCrumb® ME3 User Guide Rajant Corporation
Version: 1.02 03-100116-001
1.3.1 Radio
BreadCrumb ME3 comprises one 802.11g radio, which depending on the ME3 model, operates
either in the 900 MHz or the 2.4 GHz frequency band. The ME3 model versus radio frequency
options are listed in Table 1 below.
Table 1: E3 odel versus Radio Frequency.
ME3 Model Radio Frequen y
ME3-24 2.4 GHz
ME3-09 900 MHz
The two possible radios support the following channels and frequencies in the United States and
Canada (see Table 2 and Table 3):
Note
Not all channels are allowed for use everywhere around the world. Check with the
corresponding wireless spectrum regulatory body to determine the subset of
channels authorized for use in your country.
Table 2: 2.4 GHz Radio Channels and Frequencies.
Channel Number Center Frequen y (MHz)
1
2412
2
2417
3
2422
4
2427
5
2432
6
2437
7
2442
8
2447
9
2452
10
2457
11
2462
The default channel for a 2.4 GHz BreadCrumb radio is 11 (2462 MHz).
4
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