Firetide FWB-205 User manual

Firetide
2011-09-25 3.1
The contents of this User Guide are subject to change without notice.
Please refer to the Firetide partners web site, partners.retide.com, for current versions.
User Guide
FWB-205
Wireless Bridge

2 Firetide Wireless Bridge Reference Guide Version 3.1
Limited End User Product Warranty
Pursuant to all provisions described herein, Firetide hardware products and
Firetide antennas are warranted for one (1) year from the date of purchase
against defects in the build materials and workmanship. Firetide does not war-
rant that the Products will meet any requirements or specications of any End
User Customer. This warranty applies to the entire Firetide product, including
the AC power adapter.
Pursuant to all provisions described herein, Firetide software products are war-
ranted for ninety (90) days from the date of purchase against defects in the
build materials and workmanship. Firetide also warrants that the Software will
materially conform to the documentation supplied by Firetide with the Software.
In the event that the Software fails to materially conform to the documentation
and an authorized Firetide reseller is notied in writing of such failure within
the warranty period, Firetide or its reseller shall use commercially reasonable ef-
forts to promptly correct the nonconformity. Firetide does not warrant that the
use of the Software will be uninterrupted or error free.
The above warranties are void if the alleged defect cannot be veried by Firetide
or if, as determined by Firetide, the product failure was due to tampering, abuse,
misuse, accident, shipping, handling, or storage; or if the product has been
installed, used, or maintained in a manner not described in the product user
manual; or if the product has been altered in any way; or if product serialization
has been altered. Any attempt to disassemble or repair the product by anyone
other than Firetide immediately voids this warranty.
This warranty applies only to the original End User purchaser of the product and
may not be transferred to any other individual or entity.
The foregoing are the exclusive warranties applicable to the product in-
cluding the software, and the exclusive remedy for defects in the product.
Firetide disclaims all other warranties, whether express, implied, statutory
or otherwise, including but not limited to implied warranties of merchant-
ability, non-infringement or tness for a particular purpose. Some laws do
not allow the exclusion of implied warranties so to that extent this limita-
tion may not apply to you.
In no event will Firetide be liable for any special, incidental, consequential, pu-
nitive or indirect damages whatsoever (including, without limitation, damages
for loss of prots, business interruption, loss of information, or other pecuniary
loss) arising out of the use or inability to use the product or the performance,
interruption or failure of the product, irrespective of the cause of action, even if
Firetide has been advised of the possibility of such damages. Firetide’s cumula-
tive liability for all claims arising out of or in connection with this warranty
will not exceed the amount paid by the original End User purchaser to purchase
the product. The amounts payable for the product are based in part on these
limitations and these limitations shall apply notwithstanding the failure of es-
sential purpose of any remedy. Some jurisdictions do not allow the exclusion or
limitation of incidental or consequential damages, so to that extent the above
limitations or exclusions may not apply to you.
By using the product the original End User purchaser agrees to and is bound by
these terms and conditions.
In the event that a product fails to meet this warranty and Firetide’s authorized
reseller is notied in writing of such failure within the warranty period, Firetide
shall, at its own discretion, either repair the product or replace it with the same
or a functionally-equivalent product free of charge. Replacement products may
contain refurbished materials in whole or in part. Firetide will honor this war-
ranty provided the product is returned through an authorized Firetide reseller or
dealer with shipping charges prepaid, along with a proof of purchase describing
the original purchase date and product serial numbers if applicable. The autho-
rized reseller must acquire a Return Materials Authorization (RMA) number from
Firetide prior to returning any product. Firetide does not accept shipments of
defective products without shipping charges prepaid.
Please contact your Firetide dealer for instructions on returning defective or
damaged products for repair or replacement. Do not return products to Firetide,
Inc. Please keep all original packaging materials in the event they are needed
to return the product for servicing.
Caution! Risk of electric shock! Do not open the cover.
Every year, people are killed by touching overhead power lines.
Don’t be one of them. Do not install where possible contact
with power lines can be made. Make sure there is NO possibility
that equipment or personnel can come in contact directly or
indirectly with power lines.
The horizontal distance from a tower, pole or antenna to the
nearest power line should be at least twice the total length
of the pole/antenna combination. This will ensure that the
pole will not contact power if it falls either during or after
installation.
Look over the entire site before beginning any installation and
anticipate possible hazards. Never assume anything without
checking it out for yourself! Don’t take shortcuts!
TO AVOID FALLING, USE SAFE PROCEDURES WHEN WORKING AT
HEIGHTS ABOVE GROUND
• Select equipment locations that will allow safe and simple
installation.
• Don’t work alone. A co-worker can save your life.
• Don’t attempt repair work when you are tired. Not only will
you be more careless, but your primary safety tool -
your brain - will not be operating at full capacity.
• Use approved non-conducting ladders, shoes, and other
safety equipment. Make sure all equipment is in good repair.
• If a tower or pole begins falling, don’t attempt to catch it.
Stand back and let it fall.
• If anything does come in contact with a power line, DON’T
TOUCH IT OR ATTEMPT TO MOVE IT. Instead, save your life by
calling the power company.
• Don’t attempt to erect antennas or towers on windy days.
MAKE SURE ALL TOWERS AND POLES ARE SECURELY GROUNDED,
AND ELECTRICAL CABLES CONNECTED TO ANTENNAS HAVE LIGHT-
NING ARRESTORS. This will help prevent re damage or human
injury in case of lightning, static build-up, or short circuit with-
in equipment connected to the antenna. Be sure that any other
equipment connected to Firetide products also have protection.
• The base of the antenna pole or tower must be connected
directly to the building protective ground or to one or more
approved grounding rods, using 10 AWG ground wire and
corrosion-resistant connectors.
• Refer to the National Electrical Code for grounding details.
IF AN ACCIDENT SHOULD OCCUR WITH THE POWER LINES DON’T
TOUCH THAT PERSON, OR YOU MAY BE ELECTROCUTED.
• Use a non-conductive dry board, stick, or rope to push or
drag them so they no longer are in contact with electrical
power.
• Once they are no longer contacting electrical power, admin-
ister CPR if you are certied.
• Immediately have someone call for medical help.

July 2011 Firetide. Reliable Connectivity Anywhere. 3
Table of Contents
Chapter 1 Introduction 4
1.1 Planning Your Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 2 Initial Setup for the FWB-205 6
2.1 Initial Setup & Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 3 Radio and System Settings 9
3.1 Link Conguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Node Conguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.3 Node Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.4 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3.5 Link Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3.6 Node Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3.7 Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.8 Firmware Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.9 Logout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Chapter 4 Antenna Installation 14
Chapter 5 Technical Information 18
5.1 FWB-205 Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
5.2 Reset Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
5.3 Regulatory Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

4 Firetide Wireless Bridge Reference Guide Version 3.1
Chapter 1 Introduction
The FWB-205 provides a point-to-point Ethernet connection between two locations. The devices function
as a low-level Ethernet bridge. Ethernet frames sent to a unit at one end are automatically forwarded to
the other end, and vice-versa. The system is two-way, half-duplex. Sustained link speeds over 100 Mbps
are achievable, and the system will allocate this bandwidth in the two directions dynamcially to meet
trafc needs.
FWB-205 conguration is easy; it can be performed with a browser. Under normal circumstances, the two
units exchange conguration information automatically.
The FWB-205 Kit is shown in Figure 1. Each kit includes two radio modules, two 19-dBi MIMO antennas,
RF cables, two Ethernet PoE injector/powersupplies, two short Ethernet cables, and mounting hardware.
NOTE: The FWB-205 and its two 19 dBi panel antennas are intended for xed (non-mobile), point-to-point
applications only. Any other use is prohibited.
Figure 1. FWB-205 Kit Contents
1.1 Planning Your Installation
You must set the units up on the bench and perform several initial conguration steps prior to installing
the units in the eld. Basic conguration parameters include:
• IP addresses
• Country code
• Radio channels
These must be set prior to eld deployment. The conguration parameters can be modied later, if desired.
Many system designers choose to set all conguration parameters on the bench, prior to eld deployment.
Refer to “Chapter 2 Initial Setup for the FWB-205” on page 6 for basic setup information. Refer to
“Chapter 3 Radio and System Settings” on page 9 for complete software conguration information.
Note that is is not necessary to connect the antennas when performing basic bench conguration. The
units will establish a radio connection without antennas when in close proximity.

July 2011 Firetide. Reliable Connectivity Anywhere. 5
1.1.1 Field Installation
After basic software conguration is complete, the units can be deployed in the eld. Installation requires
these tools:
- 1/2-inch open-end wrench
- 7/16-in open-end wrench
- 3/8-inch open-end wrench
- Phillips screwdriver
- Channel-lock or slip-joint pliers
- RJ-45 crimping tool and male plug
- Waterproong tape or mastic for RF connections.
The assembly must be grounded. If the mast is not already properly grounded, you will need appropriate
grounding hardware. Consult local codes.
Refer to “Chapter 4 Antenna Installation” on page 14 for complete installation instructions.

6 Firetide Wireless Bridge Reference Guide Version 3.1
Chapter 2 Initial Setup for the FWB-205
2.1 Initial Setup & Login
The FWB-205 nodes are sold in pairs. and each pair has been programmed at the factory to work with
each other. Installation of the nodes should only be done by qualied and experienced personnel. Outdoor
installation involves many safety hazards, including electrocution, lightning strikes, and falls. Please be
careful.
In all cases, test and congure the nodes before mounting it on the pole or mast. Set the two nodes up
on the bench and apply power. Wait about 1-2 minutes for the nodes to boot up and establish a radio
connection. The LEDs should look like Figure 2, with both LEDs a steady green color. If the nodes are not
able to establish a connection, the ‘5G’ LED will blink. Proceed anyway.
Figure 2. LED Pattern for Normal Operation
Each unit has a label, as shown, which identies the unit and its partner. (The label is on the bottom of
the unit. You will need to remove the mounting plate to see the label. Use a Philips screwdriver.) FWB
nodes are paired, or “married”, at the factory. Within each pair, the unit with the lower serial number is
assigned IP address 192.168.224.161, and the unit with the higher serial number is assigned IP address
192.168.224.162. Congure your computer to have an IP address on the subnet 192.168.224.0/24. Using
a CAT-5 cable, onnect your computer to the power insertion unit which feeds the lower-numbered member
of the pair.
Figure 3. FWB-205 Label
MO 3 2 4 0 8 0 6 0 0 0 1 6 7
MO 3 2 4 0 8 0 6 0 0 0 3 9 1
192.168.224.161
192.168.224.162
Using an RJ-45 CAT5 cable (not supplied), connect your computer to the unit labeled with the
192.168.224.161 IP address. Point the browser at https://192.168.224.161. Note: use a secure web con-
nection (https) not a conventional connection (http). A website security certicate warning may occur;
ignore it for now. If possible, do NOT add the certicate to your browser’s list of trusted certicates; this
will prevent you from logging into the second node in the pair, should that be necessary.
Note to Firefox users: Firefox will require you to add the certicate in order to proceeds. If you need to
connect to the other node, you must delete the certicate and re-start Firefox.
You will be asked for a login and password; the defaults are admin and retide. You should change these
when you congure the FWB units.

July 2011 Firetide. Reliable Connectivity Anywhere. 7
Operating Country
Some Firetide FWB-205 nodes require that you enter the country of operation to ensure compliance with
the channel limitations, indoor/outdoor restrictions, and license requirements of your region. Selecting a
country other than where you are using the device may result in illegal operation and may cause harmful
interference to other systems. The node will reboot after you click Apply to set the country code.
Link Radio Settings
The Link Status eld, under the Link Conguration tab, shows whether or not the two nodes connected.

8 Firetide Wireless Bridge Reference Guide Version 3.1
It also shows the radio channel setting.
If the two nodes did not connect with each other, you must connect your PC to the second node and point
your browser at https://192.168.224.162. Log in as before, and set the second node’s country code. Make
sure the second node’s radio settings match the settings of the rst node. The nodes should connect. If
they do not, contact Firetide Customer Support.
Extended Range can be set from 0 to 9 miles (0 to 14.5 km). Increasing the range setting does not actu-
ally increase the range or power of the radios. Rather, it affects the timing of pauses between packets.
Longer links require longer pauses. Set this parameter to be greater than the path length. A too-short
setting will result in frequent collisions and reduced throughput.
Click Apply to save settings.
If you wish to congure other settings on the nodes before deployment, proceed to the next chapter.

July 2011 Firetide. Reliable Connectivity Anywhere. 9
Chapter 3 Radio and System Settings
Radio and System settings include Link Conguration (RF settings), Node Conguration (IP and network
settings), Node Management Settings, Node Status, and Firmware Upgrade commands.
3.1 Link Conguration
Link Basic Settings
Link Basic Settings include Multicast Data Rate, Fragmentation Threshold, and Management VLAN Set-
tings.
The multicast data rate can be set from 1 Mbps up to 54 Mbps. Per the original 802.11 standard, many
WiFi systems automaticlly slow down when sending multicast trafc, to maximize the likelihood of all
recipients receiving the signal. In a point-to-point conguration this is not necessary, thus a setting of
54 Mbps is recommended.
The fragmentation threshold is generally best left at the default setting of 2346.
Management VLAN status can be enabled or disabled. If you are unsure, leave it disabled. If enabled,
select the appropriate management VLAN number. Click Apply to save settings.
Link Security Settings
Link Security Settings provide support for encryption. The default is Enabled, WPA2-PSK.

10 Firetide Wireless Bridge Reference Guide Version 3.1
3.2 Node Conguration
IP Address Settings
Enter the node IP address, IP Net Mask, and Gateway IP address. Click Apply to save settings.
Basic Radio Settings
Node settings for Modulation Data Rate & Transmission Power can be set. Click Apply to save settings.
3.3 Node Management
User Settings - Changing the Password
Congure users with node management privileges here by adding & changing User Name and Password.
Save/Restore Conguration
You can save the current link conguration as a le, then restore the settings later.

July 2011 Firetide. Reliable Connectivity Anywhere. 11
System Commands
System Commands let you reboot the node or perform a factory reset. Note that a factory reset will re-
enable the antenna alignment tool, and require you to re-specify the country code.
Antenna Alignment
Antenna alignment settings are available here. Alignment is on by default. To insure maximum perfor-
mance, turn off the alignment feature after alignment is complete.

12 Firetide Wireless Bridge Reference Guide Version 3.1
3.4 Status
3.5 Link Status
Link Status is displayed here. Click Refresh to see the current status. Link status includes current radio
operating mode, RF channel, node MAC addresses, and IP addresses. The Manage Remote button lets you
connect to and manage the remote node, as long as the RF link is up.
3.6 Node Status
Node Status is displayed here. Click Refresh to see the current status.

July 2011 Firetide. Reliable Connectivity Anywhere. 13
3.7 Upgrade
3.8 Firmware Upgrade
In order to upgrade rmware, you must have Java installed on your PC. When you begin this process, the
Java applet will take a moment to load.
Browse to select upgrade image. Click Start Upgrade to begin. Once started the upgrade can be cancelled
by clicking Cancel Upgrade.
3.9 Logout
Select the Logout tab to exit from the session.

14 Firetide Wireless Bridge Reference Guide Version 3.1
Chapter 4 Antenna Installation
The FWB-205 Kit and its two 19 dBi antennas are intended for xed, point-to-point applications only. Any
other use is prohibited. Antenna(s) for the FWB-205 outdoor unit must be installed by a qualied profes-
sional. Operation of the unit with non-approved antennas is a violation of U.S. FCC Rules, Part 15.203(c),
Code of Federal Regulations, Title 47.
The FWB-205 units have three antenna connectors for each radio. Each FWB-205 unit should be installed
with its antenna on a sturdy pole or mast. It does not matter whether you install the antenna rst or the
radio unit rst. In all cases, antennas should be installed by a qualied professional. Outdoor installations
MUST have code-approved grounding and lightning-protection systems.
An assembled and mounted antenna is shown in Figure 4. The mounting systems consists of a pole clamp
assembly, a pivot link, and an antenna bracket. These are shown in Figure 5.
Figure 4. Mounted Antenna
Figure 5. Pivot Link; Pole Clamp Assembly; Antenna Bracket
Begin assembly by attaching the pivot link to the pole clamp assembly, as shown at left in Figure 5. Use
a at washer under the bolt head, and under the nut use a at washer and lock washer.
Next, attach the pole clamp assembly to the pole, as shown at center in Figure 5. Again, use a at washer
under the bolt heads, and under the nuts use a at washer and lock washer.
Mount the antenna bracket to the antenna such that the mounting lug is horizontal when the top of the
antenna is up, as shown at right in Figure 5. Antenna polarizations must match between the two ends
of a link.

July 2011 Firetide. Reliable Connectivity Anywhere. 15
Installing the Radio Unit
The radio unit mounts with a two-piece mounting assembly. One half of the assembly is permanently at-
tached to a pole or wall; the second half, on the radio itself, hooks over the rst.
Figure 6. Two-Piece Radio Mounting Plate Assembly
Hooks
(4)
Hook
Attachments
(4)
Radio w/ Mounting Plate Mount-Plate
Captive Screws
(4)
Radio as shipped
The FWB-205 is shipped with a two-piece mounting plate already attached, as shown. Loosen the four
fasteners, two on each side, to remove the hook-attachment plate. The captive screws are tight; you will
need a Phillips screwdriver, or channel-lock or slip-joint pliers.
Attach two U-bolt assemblies to the mounting pole, as shown in Figure 7. The U-bolts are large enough to
accomodate large poles; if you are mounitng on a smaller-diameter pole, you must either cut the U-bolts
to length or use four additional spacer nutes, as shown at right in Figure 7.
Figure 7. U-Bolt Attachment to Pole, Spacer Nuts on U-Bolts
Now you can hang the radio unit on the bracket, and tighten the four captive screws.

16 Firetide Wireless Bridge Reference Guide Version 3.1
Connecting the Antennas
Connect the radio unit to the antenna using the supplied cables. The cables are equipped with lightning-
arrestor units, and should be installed with the arrrestors connected to the radio unit, not the antennas.
This is shown at left in Figure 8.
Figure 8. Cable-to-Radio Connections; Completed Installation
Cable connection pattern is critical. You must use the Radio 2 antenna connectors; these are on the right
side of the unit when viewed from the front. The panel antennas included with the FWB-205 are ‘handed’;
the individual antenna connections on the radio unit must be connected to the antenna in a specic way,
and it is slightly different on each end of the link.
On one end of the link, connect the three antenna leads as shown in red. On the other end, connect
them as shown in green. Note that this reverses connections 2 and 3; this preserves matching antenna
polarization
Figure 9. Antenna Connections
11
23
32

July 2011 Firetide. Reliable Connectivity Anywhere. 17
Next, fabricate a weatherproof Ethernet connector. Thread the cable as shown, and then attach it to the
FWB-205 radio unit.
Figure 10. Ethernet Cable Fabrication
Antenna Alignment
After physical installation, the antennas should be aligned. You and a co-worker will need to work to-
gether; one at each end. Log into the FWB-205 pair and bring up the alignment screen, as shown.
Alignment is on by default. To insure maximum performance, turn off the alignment feature after align-
ment is complete.
Refer to “Chapter 3 Radio and System Settings” on page 9 for other software conguration options.

18 Firetide Wireless Bridge Reference Guide Version 3.1
Wireless Interface
Model Use
FWB-205 Outdoor, Worldwide, Radio 2: 5 GHz
Bands Frequency (GHz) Restrictions
802.11a
802.11n
5.15-5.25
5.25-5.35
5.725-5.825
4.9-5.090
4.94-4.990
Japan only
US Public Safety
5.470-5.725 ETSI 301.893, U-NII
Bands (GHz) Max TX Power
802.11a 5.725-5.825 UNII-3
802.11n
5.725-5.825 UNII-3
5.470-5.735 UNII
5.25-5.36 UNII-2
5.15-5.25 UNII-1
20 dBm
20 dBm
20 dBm
20 dBm
17 dBm
Supported Data Rates & Standards
• 802.11a 6/9/12/18/24/36/48/54Mbps
• 802.11a Capable of switching to 1⁄4 and 1⁄2 rates for 4.940
– 4.990 GHz Public Safety Band
• 802.11g 6/9/12/18/24/36/48/54Mbps
• 802.11n 6.5/13/19.5/26/65/130 (20MHz LGB)
7.2/14.4/21.7/28.9/72.2/144 (20MHz SGB)
13.5/27/40.5/54/135/270 (40MHz LGB)
15/30/45/60/150/300 (40MHz SGB)
• Network Standards: IEEE 802.11a/d/e/f/h/i/n
• Security: WPA; 64/128/256 w/TKIP, AES
Chapter 5 Technical Information
5.1 FWB-205 Specications
Power
• 48 VDC via DC connecter or 802.3af PoE
Environmental
• Humidity (non-condensing): 10% to 90%
• Storage humidity (non-condensing): 5% to 95%
• Maximum altitude 15,000 feet (4600 meters)
Network Port
• One 10/100/1000 Mbps Ethernet port with weatherproof
connector
• IEEE 802.3, 802.3u compliant
• CSMA/CD 10/100/1000 autosense
Enclosure
• Cast aluminum NEMA-4X/IP66 enclosure
• Six N-type antenna connectors
• Weatherproof 48VDC power connector
• Weight: 3.75 lbs (1.7 Kg) with bracket
• Dimensions: 8.2” x 8.6” x 2” (205 x 214 x 100 mm)
Security, Authentication and Encryption
• 802.11i, WPA2
• 40-bit, 104-bit WEP keys
• SSID suppression
Management and Conguration
• Built-in web-based management
• Remote rmware upgrade
Network Ports
• One 10/100/1000 autosense Base-T port
• IEEE 802.3,802.3 at based PoE
5.2 Reset Procedure
Firetide FWB-205s may be reset to factory parameters. This is useful when returning a unit from eld ser-
vice or in recovering a unit you cannot communicate with. You will need a long, thin shaft to reach the
reset button, because the switch is recessed approximately 35 mm (1-3/8 in) inside the unit.
1. Apply power and wait for the unit to fully boot. This takes 60 to 90 seconds.
2. Remove the Phillips screw covering the reset port. It is near the Ethernet connector.
3. Insert a drill bit or similar object about 3 mm (1/8 in) and at least 37 mm (1-1/2 in) long
directly into the hole. The tool must be perpendicular to the face of the node.
4. Push the reset button. You will feel a slight ‘click’; if you don’t, you missed. Hold the
button for 15 seconds, then wait for the units to reboot before attempting to connect or
removing power.
When a unit has been reset, it forgets the country code setting and operates at low power until the
country code is re-established. Units that are already installed in the eld are unlikely to communicate
with each other after reset, due to the low power setting. You must connect to each unit in turn and set
the country code.
Reset hole
(screw removed)
Reset
switch

July 2011 Firetide. Reliable Connectivity Anywhere. 19
5.3 Regulatory Notices
FCC Part 15 Note
These devices comply with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference.
- This device must accept any interference received, including interference that may cause unde-
sired operation.
FCC Class B Notice
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the interfer-
ence by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
- Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure
To ensure compliance with the FCC’s RF exposure limits, the antenna used for this transmitter must be
installed to provide a separation distance of at least 76 cm from all persons and must not be co-located
or operated in conjunction with any other antenna or transmitter. Installers and end users must follow
these installation instructions.
Modications
Any modications made to this device that are not approved by Firetide, Inc. may void the authority
granted to the user by the FCC to operate this equipment.
Installation
The FWB-205 Kit and its two 19 dBi antennas are intended for xed, point-to-point applications only. Any
other use is prohibited. Antenna(s) for the FWB-205 outdoor unit must be installed by a qualied profes-
sional. Operation of the unit with non-approved antennas is a violation of U.S. FCC Rules, Part 15.203(c),
Code of Federal Regulations, Title 47.
Canadian Compliance Statement
This Class B Digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment
Regulations. Cet appareil numerique de la classe B respecte les exigences du Reglement sur le material
broilleur du Canada.
FWB-205 devices are certied to the requirements of RSS-210 for 2.4 GHz spread spectrum devices. The
use of this device in a system operating either partially or completely outdoors may require the user to
obtain a license for the system according to the Canadian regulations. For further information, contact
your local Industry Canada ofce.
NCC Statement
一、經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用者均不得擅自變更頻率、加大功率
或變更原設計之特性及功能。
二、低功率射頻電機之使用不得影響飛航安全及干擾合法通信；經發現有干擾現象時，應立即停用，並改
善至無干擾時方得繼續使用。
前項合法通信，指依電信法規定作業之無線電通信。
低功率射頻電機須忍受合法通信或工業、科學及醫療用電波輻射性電機設 備之干擾。

20 Firetide Wireless Bridge Reference Guide Version 3.1
FCC DFS Rules
This explains how to correctly configure DFS channels so as to maintain compliance with FCC regula-
tions and guidelines. DFS operation can only be enabled and configured by a DFS-qualified professional
installer. Contact Firetide for details. All DFS-listed channels must comply with basic DFS rules, includ-
ing channel avoidance when radar signals are detected.
Channels 120, 124, and 128 have been removed from DFS service completely. These channels must not
be used in the US anywhere, at any time. They do not appear in channel listing in any Firetide product,
and are only listed here for historical reference.
Channels 116 and 132 may only be used when certain special rules have been followed. The channels
can only be used if either of the following two conditions are met:
• The transmitting antenna is more than 35 km from all TDWR stations;
OR
• The TDWR is operating on a frequency more than 30 MHz different than the equipment.
DFS Rules
Distance
You must determine if there are any trans-
mitting elements (i.e., any Firetide product)
within 35 km of any TDWR system. If there
are, you should register the installation.
RegistRation
A voluntary WISPA-sponsored database has
been developed that allows registration of
devices within 35 km of any TDWR loca-
tion (see http://www.spectrumbridge.com/
udia/home.aspx). This database is used by
government agencies to expedite resolution
of any interference with TDWRs.
channel avoiDance
When a radar signature is detected on a
channel, transmitters must stop using that
channel. The channel delection lets you con-
figure the channels to which the system can
switch, and the channels which must be avoided.
TDWR-Restricted Additional Requirements
Terminal Doppler Weather Radar systems operate in the 5600 MHz band, and must be kept free of in-
terference from all other types of equipment. For this reason, the FCC has removed channels 120, 124,
and 128 (5600-5640) from service, and placed additional restrictions on channels 116 (5580 MHz) and
132 (5660 MHz).
If you are within 35 km of a TDWR, you may not operate on any channel that is within 30 MHz of the
listed TDWR frequency. In some instances it is possible that a device may be within 35 km of multiple
TDWRs. In this case the device must ensure that it avoids operation within 30 MHz for each of the
TDWRs. This requirement applies even if the master is outside the 35 km radius but communicates with
outdoor clients which may be within the 35 km radius of the TDWRs.
The requirement for ensuring 30 MHz frequency separation is based on the best information available to
date. If interference is not eliminated, a distance limitation based on line-of-sight from TDWR will need
to be used. In addition, devices with bandwidths over 20 MHz may require greater frequency separation.
Ch. Center
Freq.
Distance
Determination
Registration Channel
Avoidance
TDWR
Restrictions
52 5260 Yes If > 35 km Yes No
56 5280 Yes If > 35 km Yes No
60 5300 Yes If > 35 km Yes No
64 5320 Yes If > 35 km Yes No
100 5500 Yes If > 35 km Yes No
104 5520 Yes If > 35 km Yes No
108 5540 Yes If > 35 km Yes No
112 5560 Yes If > 35 km Yes No
116 5580 Yes If > 35 km Yes Yes
120 5600 Banned
124 5620 Banned
128 5640 Banned
132 5660 Yes If > 35 km Yes Yes
136 5680 Yes If > 35 km Yes No
140 5700 Yes If > 35 km Yes No
Table 2.1 TDWR InsTallaTIons
This list is current as of August 2011. Elevation and antenna
height shown in feet. Refer to www.fcc.gov for the most cur-
rent version.