Cisco Aironet 1400 Series User manual

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Cisco One-Year Limited Hardware
Warranty Terms
There are special terms applicable to your hardware warranty and various
services that you can use during the warranty period. Your formal Warranty
Statement, including the warranty applicable to Cisco software, is available
on Cisco.com.Follow these steps to access and download the Cisco
Information Packet and your warranty document from Cisco.com.
1. Launch your browser, and go to this URL:
http://www.cisco.com/univercd/cc/td/doc/es_inpck/cetrans.htm
The Warranties and License Agreements page appears.
2. To read the Cisco Information Packet, follow these steps:
a. Click the Information Packet Number field, and make sure that
the part number 78-5235-02F0 is highlighted.
b. Select the language in which you would like to read the document.
c. Click Go.
The Cisco Limited Warranty and Software License page from the
Information Packet appears.
d. Read the document online, or click the PDF icon to download and
print the document in Adobe Portable Document Format (PDF).

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Note You must have Adobe Acrobat Reader to view and print
PDF files. You can download the reader from Adobe’s
website: http://www.adobe.com
3. To read translated and localized warranty information about your
product, follow these steps:
a. Enter this part number in the Warranty Document Number field:
78-10747-01C0
b. Select the language in which you would like to view the document.
c. Click Go.
The Cisco warranty page appears.
d. Read the document online, or click the PDF icon to download and
print the document in Adobe Portable Document Format (PDF).
You can also contact the Cisco service and support website for assistance:
http://www.cisco.com/public/Support_root.shtml.
Duration of Hardware Warranty
One (1) Year

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Replacement, Repair, or Refund Policy for Hardware
Cisco or its service center will use commercially reasonable efforts to ship a
replacement part within ten (10) working days after receipt of a Return
Materials Authorization (RMA) request. Actual delivery times can vary,
depending on the customer location.
Cisco reserves the right to refund the purchase price as its exclusive warranty
remedy.
To Receive a Return Materials Authorization (RMA) Number
Contact the company from whom you purchased the product. If you
purchased the product directly from Cisco, contact your Cisco Sales and
Service Representative.
Complete the information below, and keep it for reference.
Company product purchased from
Company telephone number
Product model number
Product serial number
Maintenance contract number

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Preface
This guide is designed to make you familiar with the Cisco Aironet 1400
Series Wireless Bridge. The guide identifies the major components of the
bridge and describes their functions within the bridge system. Installation and
configuration processes are also discussed in fundamental terms.
Warning Read the installation instructions before you connect the
system to its power source.
Warning Only trained and qualified personnel should be allowed to
install, replace, or service this equipment.
Related Documents
The following documents provide additional information about the wireless
bridge:
•Cisco Aironet 1400 Series Wireless Bridge Hardware Installation Guide
•Cisco Aironet 1400 Series Bridges Software Configuration Guide

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•Cisco IOS Command Reference for Cisco Aironet Access Points and
Bridges
•Cisco Aironet 1400 Series Wireless Bridge Mounting Instructions
•Cisco Aironet 1400 Series Wireless Bridge 9-dBi Omnidirectional
Antenna
•Cisco Aironet 1400 Series Wireless Bridge 9.5-dBi Sector Antenna
•Cisco Aironet 1400 Series Wireless Bridge 28-dBi Dish Antenna
These documents are available on Cisco.com. Follow these steps to access
them:
1. Browse to http://www.cisco.com
2. Click Products and Services. A Products and Services window appears.
3. Click Wireless LAN Products. The Cisco Wireless LAN Products page
appears.
4. Click Cisco Aironet 1400 Series. The Cisco Aironet 1400 Series page
appears.
5. In the left-hand frame, click Instructions and Guides. A list of
instructions and guides for the bridge appears.
6. Select the document you wish to view.

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Introduction to the Wireless Bridge
The Cisco Aironet 1400 Series Wireless Bridge is a high-performance
outdoor-deployable wireless bridge that provides wireless connectivity
between multiple network locations within a metro area with a low total cost
of ownership. The bridge operates in the unlicensed UNII-3 frequency band
(5725 to 5825 MHz) and provides high-speed data transfer rates of 6 to 54
Mbps.
The bridge is designed for applications requiring high data throughput over
intermediate ranges. For a point-to-point link, the bridge provides a
maximum speed of 54 Mbps at ranges of up to 7.8 mi. (12.5 km) using the
integrated antenna. The system is also configurable for point-to-multipoint
operation over distances of up to 2.0 mi. (3.2 km) using a 9-dBi gain
omnidirectional antenna at the root bridge site and a 22.5-dBi gain antenna at
the non-root bridge site.
In addition, two point-to-point bridge links can be stacked to increase data
throughput or provide aggregation and redundancy.
Two configurations of the bridge are available:
•Integrated (built-in) 22.5-dBi antenna
•External antenna (connects an optional antenna)

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The following illustration shows the two configurations:
The bridge system includes these major components:
•Bridge
•Bridge Power Injector LR
•Power module
•Grounding block
•Multi-function mount
1Integrated antenna configuration 2External antenna configuration
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21

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Network Configurations
The following sections describe the bridge’s role in three common network
configurations: point-to-point, point-to-multipoint, and port aggregation or
redundancy.
Point-to-Point Configuration
In a point-to-point configuration, two bridges connect two LAN networks
together using a wireless communication link. The following illustration
shows a typical point-to-point configuration.
Point-to-Multipoint Configuration
The point-to-multipoint configuration connects the main LAN network to
multiple remote LAN networks. The following illustration shows a typical
point-to-multipoint configuration.
88833
Bridge Bridge

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Port Aggregation or Redundancy Configuration
The port aggregation or redundancy configuration increases bandwidth or
backup redundancy communications between two LANs. Port aggregation
for increased bandwidth occurs when both wireless links simultaneously pass
Ethernet traffic. Backup communication redundancy is achieved when the
second wireless bridge link is used if the first link fails. The maximum
number of bridges allowed for redundancy configurations is two. The
following illustration shows a typical port aggregation or redundancy
configuration.
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Bridge
Bridge
Bridge
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Bridge Bridge
Bridge Bridge

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The Bridge
The bridge is typically installed outdoors and provides all IOS software and
radio functionality. The following illustration shows the bridge and identifies
its interfaces.
1Mounting bracket 3RSSI voltage port
2Status and RSSI LEDs 4Power Injector LR coax interfaces
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1
1
44
32

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Bridge Power Injector LR
The bridge Power Injector LR delivers 48-VDC power to the bridge. It also
serves as an Ethernet repeater between the internal LAN and bridge and
provides surge protection for any charge that might build up on the Ethernet
cable inner conductor. Power and data are transmitted to the bridge through
two 75Ωcoaxial cables. The Power Injector LR receives 48-VDC power from
the power module. It receives Ethernet data from the internal LAN via an
RJ-45 connector. The following illustration shows the bridge power injector
and identifies its interfaces.
148-VDC power connector 4Mode button
2Power LED 5RJ-45 Ethernet port
3Power Injector LR coax interface 6Status LEDs
88809
6
1
245
3

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Two lengths of dual 75Ωcoaxial cable are provided: 20 ft (6.1 m) and 50 ft
(15.2 m). These cables connect the Power Injector LR to the bridge through
the grounding block.
Power Module
The power module provides 48-VDC power at up to 60W to the Power
Injector LR, which in turn provides power to the entire bridge system. The
following illustration shows the power adapter and identifies its interfaces.
148-VDC output cable 3AC input cord
2Power adapter
12
3
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Grounding Block
The grounding block provides lightning provides surge protection for any
charge that might build up on the Ethernet cable inner conductor. It is
normally installed inline with the 75Ωdual coaxial cables at the building
entrance. The following illustration shows a typical grounding block.
Multi-Function Mount
The multi-function mount enables you to mount the bridge on a mast or on a
roof. The mount permits easy azimuth and elevation adjustments for antenna
alignment. The following illustration shows how to use the multi-function
mount to mount the bridge on a roof or wall using an optional roof or wall
mount.
1F-type coaxial connectors 2Ground wire lug
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1 1 2

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Antenna Options
The following optional antennas are available for the external antenna model
of the bridge:
•9-dBi omnidirectional antenna
•9.5-dBi sector antenna
•28-dBi dish antenna
91494

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The following illustration shows these antennas.
Note To meet regulatory restrictions, these antennas must be
professionally installed.
19-dBi omnidirectional antenna 328-dBi dish antenna
29.5-dBi sector antenna

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Do not install the antenna near overhead power lines or other electric light or
power circuits or where it can come into contact with such circuits. When
installing the antenna, take extreme care not to come into contact with such
circuits, because they may cause serious injury or death. For proper
installation and grounding of the antenna, please refer to national and local
codes (for example, U.S.:NFPA 70, National Electrical Code, Article 810,
Canada: Canadian Electrical Code, Section 54).
9-dBi Omnidirectional Antenna
The 9-dBi omnidirectional antenna covers 360 degrees, so it can receive
signals from any direction. See the Cisco Aironet 1400 Series Wireless Bridge
9-dBi Omnidirectional Antenna document that ships with the antenna (and is
also on Cisco.com) for additional information.
9.5-dBi Sector Antenna
The 9.5-dBi sector antenna covers a 90-degree sector, so it can receive signals
from multiple bridges within range within that sector. See the Cisco Aironet
1400 Series Wireless Bridge 9.5-dBi Sector Antenna document that ships with
the antenna (and is available on Cisco.com) for additional information.

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28-dBi Dish Antenna
The 28-dBi dish antenna provides a highly directional pattern that results in
extended ranges between devices. See the Cisco Aironet 1400 Series Wireless
Bridge 28-dBi Dish Antenna document that ships with the antenna (and is
available on Cisco.com) for additional information.
Unpacking the Bridge
Each version of the bridge is shipped with the following items:
•Bridge
•Bridge Power Injector LR
•Power module
•Grounding block
•Mounting kit and hardware
•Two dual-coaxial cables, 20 ft (6.1 m) and 50 ft (15.2 m)
•Weather-proofing kit (Coax Seal and anti-corrosion gel)
•Cisco Aironet 1400 Series Wireless Bridge Mounting Instructions
•This guide
If anything is missing, contact your Cisco representative for support.

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Installing the Bridge
Typically, the bridge is installed on a rooftop, mast, tower, wall, or a suitable
flat surface. Because there are so many ways to install the bridge, this guide
provides an overview with references to specific installation documents.
Personnel installing the bridge must understand wireless bridging techniques,
particularly antenna alignment and adjustment. The integrated antenna
version can be installed by an experienced IT personnel, but the external
antenna version must be professionally installed.
There are three basic types of bridge installations:
•Rooftop with short mast
•Mast top (tall mast)
•Tower
Note Each of these installation types requires different approaches to the
installation process. These approaches are described in detail in the
Cisco Aironet 1400 Series Wireless Bridge Mounting Instructions
that shipped with your bridge.

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The following illustration shows how the bridge components are connected
in a typical installation.
Note Ground wires must comply with Sections 810 and 820 of the
National Electrical Code and Section 54 of the Canadian Electrical
Code.
88836
Category 5
Ethernet
cable
Dual-coax
cables Dual-coax cables
Indoor
Building
entrance
Outdoor
Ground
(see note)
Power
injector
Power
module
Grounding
block Bridge
Integrated
or
external antenna
LAN network

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Caution To ensure correct installation and grounding, install the bridge
in compliance with your local and national electrical codes:
National Fire Protection Association (NFPA) 70, National
Electrical Code (U.S.); Canadian Electrical Code, Part 1, CSA
22.1 (Canada). If local or national electrical codes are not
available, refer to IEC 364, Part 1 through Part 7 (other
countries).
Warning Never defeat the ground conductor or operate the equipment
in the absence of a suitably installed ground conductor.
Contact the appropriate electrical inspection authority or an
electrician if you are uncertain that suitable grounding is
available.
Before You Install the Bridge
Prior to installing a bridge system, develop a preinstallation checklist that
covers all aspects of the installation. A well-developed plan identifies
potential problems early so that they can be solved before the installation
process begins.