Cisco AIR-LAP1310G Mounting Instructions

Contents

Cisco Aironet 1300 Series Lightweight Outdoor Access Point Mounting Instructions

June 2006

This document explains how to mount the Cisco Aironet 1300 Series Lightweight Outdoor Access Point (Model number: AIR-LAP1310G) and contains the following sections:

• Introduction, page 2

• System Requirements, page 2

• Safety Warnings, page 3

• Safety Precautions, page 5

• Choosing a Mounting Location, page 7

• Mounting the Access Point, page 10

• Activating the Lightweight Access Point, page 32

• Using a DC Power Source, page 35

• Related Documentation, page 38

• Locating the Product Serial Number, page 39

• Obtaining Documentation and Submitting a Service Request, page 40

Corporate Headquarters: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA

Introduction

The Cisco Aironet 1300 Series Lightweight Outdoor Access Point (hereafter called an access point) is designed for indoor or outdoor installations, providing differing antenna gains as well as coverage patterns. These access points are part of the Cisco Integrated Wireless Network Solution and require no manual configuration before they are mounted. The access point is automatically configured by a Cisco Wireless LAN Controller (herafter called a controller) using the Lightweight Access Point Protocol (LWAPP).

Operating in the 2.4-GHz band (2.400 to 2.497 GHz), using the IEEE 802.11g standard, the access point delivers 1 to 54 Mbps data rates without the need for a license. Using a controller, you can configure the radio settings.

In the Cisco Centralized Wireless LAN architecture, access points operate in the lightweight mode (as opposed to autonomous mode). The access points associate to a controller. The controller manages the configuration, firmware, and control transactions such as 802.1x authentication. In addition, all wireless traffic is tunneled through the controller.

LWAPP is an Internet Engineering Task Force (IETF) draft protocol that defines the control messaging for setup and path authentication and run-time operations. LWAPP also defines the tunneling mechanism for data traffic.

In an LWAPP environment, a lightweight access point discovers a controller by using LWAPP discovery mechanisms and then sends it an LWAPP join request. The controller sends the access point an LWAPP join response allowing the access point to join the controller. When the access point is joined, the access point downloads its software if the versions on the access point and controller do not match. After an access point joins a controller, you can reassign it to any controller on your network.

LWAPP secures the control communication between the access point and controller by means of a secure key distribution, utilizing X.509 certificates on both the access point and controller.

The access point is available with an integrated antenna or with external antenna connectors. When using a access point with an integrated antenna, you must choose a mounting location with a clear path to the remote antenna and orient the access point so that the antenna is positioned for maximum signal strength. The mounting brackets in the optional installation kit has adjustment slots that facilitate the positioning process. When using a access point with an external antenna, mount the access point in a convenient location near the external antenna. Each external antenna has its own mounting instructions.

Note To meet regulatory restrictions, the external antenna access point and the external antenna must be

professionally installed. The network administration or other IT professional responsible for installing and configuring the unit is a suitable professional installer. Following installation, access to the unit should be password protected by the network administrator to maintain regulatory compliance.

System Requirements

The access point system consists of a weather-proof unit, a power injector, a grounding block, and optional external antennas. The access point and external antennas are typically mounted outdoors, the grounding block is installed at the building entrance, and the power injector and the power module are installed indoors. This document describes the access point mounting procedures only. For information about other components, see the “Related Documentation” section on page 38.

Cisco Aironet 1300 Series Lightweight Outdoor Access Point Mounting Instructions

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Package Contents

Each access point package contains these items:

• Access point unit (integrated antenna or external antenna configuration)

• Power injector (LR2) unit

• Power module and AC power cord

• Quick Start Guide: Cisco Aironet Lightweight Access Points

• Product mounting instructions (this document)

• Translated safety warnings document

• Read Me document

• Cisco product registration and documentation feedback cards

The optional roof mount kit contains these items:

• One roof-wall mount

• Two dual-coax cables [20 ft (6.1 m) and 50 ft (15.2 m)]

• Multi-function mount (consisting of a access point bracket and a mast bracket)

• Two tower clamps (U-bolts) with four nuts and washers

• Four bolts and washers for securing the access point bracket to the mast bracket

Package Contents

• Four bolts for securing the access point bracket to the unit

• Grounding block and mounting screws

• Ground lug for the access point, two hex nuts, and two washers

• Weatherproofing kit (consisting of Coax Seal and electrical joint compound)

The optional wall mount kit (for indoor use) contains these items:

• Wall mount bracket with 4 mounting bolts and washers

• Two sub-mini RG-59 coax cables (12 in. or 30.5 cm)

Safety Warnings

Translated versions of all the safety warnings are provided in the access point box and in Appendix A, “Translated Safety Warnings” section of the Cisco Aironet 1300 Series Outdoor Access Point/Bridge Hardware Installation Guide.

All Installations

Warning

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. (To see translations of the warnings that appear in this publication, refer to the appendix “Translated Safety Warnings.”)

Statement 84

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Cisco Aironet 1300 Series Lightweight Outdoor Access Point Mounting Instructions

Safety Warnings

Warning

Do not operate your wireless network device near unshielded blasting caps or in an explosive environment unless the device has been modified to be especially qualified for such use.

Statement 245B

In order to comply with international radio frequency (RF) exposure limits, dish antennas should be placed at a minimum of 8.7 inches (22 cm) from the bodies of all persons. Other antennas should be placed a minimum of 7.9 inches (20 cm) from the bodies of all persons.

Do not work on the system or connect or disconnect cables during periods of lightning activity.

Statement 1001

This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than: 15A

Statement 1005

This equipment must be grounded. 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.

Statement 246

Statement 1024

Warning

Ultimate disposal of this product should be handled according to all national laws and regulations.

Statement 1040

Do not locate 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, as they may cause serious injury or death. For proper installation and grounding of the antenna, please refer to national and local codes (e.g. U.S.:NFPA 70, National Electrical Code, Article 810, in Canada: Canadian Electrical Code, Section 54).

Statement 1052

Outdoor and DC Power Source Installations

The following warning applies to outdoor and DC power source installations:

Warning

Only trained and qualified personnel should be allowed to install, replace, or service this equipment.

Statement 1030

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DC Power Source Installations

The following warnings apply to DC power source installations:

Safety Precautions

Warning

A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.

Statement 1022

Connect the unit only to DC power source that complies with the safety extra-low voltage (SELV) requirements in IEC 60950 based safety standards.

Safety Precautions

Note To meet regulatory restrictions, the external antenna access point unit and the external antenna must be

Each year hundreds of people are killed or injured when attempting to install an antenna. In many of these cases, the victim is aware of the danger of electrocution, but does not take adequate steps to avoid the hazard.

For your safety, and to help you properly install hardware, please read and follow these safety precautions. They may save your life!

1. If you are installing an antenna for the first time, for your own safety as well as others, seek

assistance from a person with skills and knowledge related to the construction and operation of electrical equipment and has received safety training on the hazards involved.

2. Keep safety as well as performance in mind when selecting your installation site Remember: electric

power lines and phone lines look alike. Always assume that overhead lines are very dangerous.

Statement 1033

3. Call your electric power company. Tell them your plans, and ask them to look at your proposed

installation. This is a reasonable request considering the danger.

4. Plan your installation carefully and completely before you begin. Successful raising of a mast or

tower is largely a matter of coordination. Assign each person a specific task, and ensure that they know what to do and when to do it. Put one person in charge of the operation to issue instructions and watch for signs of trouble.

5. When installing your antenna, remember:

a. Do not use a metal ladder.

b. Do not work on a wet or windy day.

c. Do dress properly—shoes with rubber soles and heels, gloves, long sleeved shirt or jacket.

6. If the assembly starts to fall, get away from it and let it fall. Remember, the antenna, mast, cable,

and metal guy wires are excellent conductors of electrical current and may touch power lines.

7. If any part of the antenna system comes in contact with a power line, don’t touch it or try to remove

it yourself. Call your local power company. They can remove it safely.

If an accident occurs with the power lines, call for qualified emergency help immediately.

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Cisco Aironet 1300 Series Lightweight Outdoor Access Point Mounting Instructions

Safety Precautions

Typical Access Point Installation Components

The access point is designed to be installed in an indoor or outdoor environment, typically on a wall, tower, or tall building. A typical installation diagram is shown in Figure 1.

Figure 1 Typical Installation Diagram

Building

entrance

Indoor

Category 5

Ethernet

cable

Note Ground wires must comply with Sections 810 and 820 of the National Electrical Code and Section 54 of

Power

injector

Power

module

Grounding

Dual-coax

cables

block

Outdoor

Dual-coax

cables

Ground

(see note)

Integrated

external antenna

BR1310G or

LAP1310G

155881

the Canadian Electrical Code.

Warning

Statement 1024

Caution To ensure correct installation and grounding, install the access point in compliance with your local and

national electrical codes: National Fire Protection Association (NFPA) 70, National Electrical Code (U.S.); Canadian Electrical Code, Part I, CSA 22.1 (Canada); and if local or national electrical codes are not available, refer to IEC 364, Part 1 through 7 (other countries).

Note The ground block and grounding wire are not required when both the access point and the antenna are

mounted in a sheltered indoor environment.

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Deploying Lightweight Access Points on the Wireless Network

Prior to beginning the actual lightweight access point deployment, perform these tasks:

• Ensure that a site survey has been performed.

• Ensure that your network infrastructure devices are operational and properly configured.

• Ensure that your controllers are connected to switch trunk ports.

• Ensure that your switch is configured with untagged access ports for connecting your access points.

• Ensure that a DHCP server with Option 43 configured is reachable by your access points or

manually configure the controller information in the access point (for additional information, refer to the Cisco Aironet 1300 Series Outdoor Access Point/Bridge Hardware Installation Guide).

Choosing a Mounting Location

Choosing a good mounting location for the access point is important because it affects the reliability of the wireless link and maximum data rates it can support. The most important considerations are distance between wireless devices and clearance from obstacles. The mounting location can be a wall, ceiling, the top or side of a building, or on a tower providing a clear unobstructed line-of-sight to the wireless devices.

With the integrated antenna access point configuration, the location must allow the access point to be oriented in the proper direction.

With the external antenna access point configuration, the external antenna must be located within line-of-sight of the wireless devices. The access point can be located in a convenient location that minimizes the cable length to the antenna.

Note To meet regulatory restrictions, the external antenna access point and the external antenna must be

Signal Path Distance

In an environment without obstacles in the signal path, the maximum operating distance depends primarily on the type of antennas and the free space loss between the access point and wireless devices. Make sure your proposed mounting site is within range of the wireless devices.

Note When operating as an access point, the maximum communication distance is approximately 1 mile.

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Cisco Aironet 1300 Series Lightweight Outdoor Access Point Mounting Instructions

Choosing a Mounting Location

Antenna Polarization

The integrated antenna radiates and receives vertically polarized radio signals. Polarization helps reduce interference because the antenna tends to reject cross-polarized signals from other sources.

Note For the multi-point links, Cisco recommends that you use vertical polarization on all antennas; however,

on point-to-point links you can also use horizontal polarization on both ends of the link. To operate correctly, the antennas at each end of the wireless link should have the same polarization.

The following lightweight access point antenna is vertically polarized:

• 5.2-dBi omni-directional antennas

The following lightweight access point antennas can be vertically or horizontally polarized depending on their mounting orientation:

• 10-dBi a yagi antennas

• 9-dBi patch wall-mount antenna

Signal Path Clearance

A radio beam travels from the access point to another in a straight line. Therefore, the path between the antennas must be free of major obstacles. The effects of obstacles and terrain, both along and near the path, have a significant bearing on the propagation of radio signals and can cause both interference and signal cancellation.

When choosing a site, consider the effects of the following common obstacles:

• Trees and large plants

A tree directly in the path can totally block the signal. With clearance above the trees there are usually no secondary effects, but you should allow for future tree growth.

• Man-made obstacles

A large round container such as a gas storage reservoir or water tower that is partially in the path causes some blocking. These obstacles may also reflect some energy, which can interfere with other receivers. Square or rectangular objects in or near the path have rectangular surfaces that can block and diffract signals over and around them.

• Internal building obstacles

When mounting the access point in an indoor location, the signal can be block obstructions, such as walls, office cublicles, steel file cabinets, metal ducts, and metal shelving. These obstacles can also reflect some energy, which can interfere with radio receivers.

For tower installations, you may need to climb the tower to the proposed mounting location to verify a clear path to the other site. If trees are in the line of signal propagation, leave extra clearance above them for future growth into the signal path.

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Physical Site Inspection

Perform a visual inspection of the site to ascertain and document the physical characteristics of the site and to ensure that all requirements are met for the proper installation and operation of the system.

Contact Information and Access Permissions

Make sure the following general requirements are met before beginning the installation:

• Validate customer-provided information, such as site contact names and telephone numbers.

• Examine the building (tenant) lease to verify or establish building roof or tower rights. If available,

use layout drawings to evaluate the feasibility of modifications or special permits that might be necessary.

• For a tower-mounted installation, find out if the owner, operator, or landlord requires a professional

or certified tower climber to do the work.

Physical Site

Make sure the following physical site requirements are met before beginning the installation:

• Identify the roof area, wall, or tower for mounting the access point.

Choosing a Mounting Location

Cable Routes

Caution To prevent damage to the access point or power injector, connect all coax cables from the power injector

• Determine the access area, such as a stairway or a ladder.

• Identify existing equipment installations and assess the condition of proposed towers or mounting

structures.

• Assess environmental conditions, such as temperature, ventilation, and humidity.

Make sure the following cable route requirements are met before beginning the installation:

• Identify cable routes, building entry points, and any special routing or support requirements

(conduits, bracing, cable trays, safety structures, and so on). Make sure the total cable length between the access point and the power injector is no greater than 100 meters.

• Identify necessary floor, roof, or wall penetrations and specify the locations.

• Document existing grounding system and connection requirements for new equipment.

• Refer to these electrical codes for your local regulations:

–

NFPA 70 (US National Electrical Code)

–

Canadian Electrical Code, Part1, CSA 22.1

–

IEC 364, Part 1 through 7 for other countries

to the access point and connect the power jack to the power injector before applying power.

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Cisco Aironet 1300 Series Lightweight Outdoor Access Point Mounting Instructions

Mounting the Access Point

Lightning Arrestor

In outdoor antenna installations, your antenna and access point can be damaged by surges that develop on the antenna and cable from close lightning strikes. You can use a lightning arrestor (such as AIR-ACC-3354) to help protect your access point system from static electricity and lightning-induced surges; however, an arrestor will not prevent damage from a direct lightning hit.

A lightning arrestor is a 50-ohm transmission line with a gas discharge tube positioned between the center conductor and ground. This gas discharge tube changes from an open circuit to a short circuit almost instantly (100 nanoseconds) in the presence of voltage and energy surges, providing a path to ground for the energy surge.

A lightning arrestor should be installed between your outdoor antenna and the access point. You should connect a 6 AWG copper wire from the arrestor to a good earth ground.

Mounting the Access Point

This section describes how to mount the access point and position the antenna and contains the following topics:

• Required Tools and Fasteners, page 11

• Window Mounting, page 12

• Wall or Ceiling Mounting Bracket, page 13

• Rooftop or Wall Mount, page 15

• Tower Mount, page 18

• Mast Mount, page 21

• Applying Coax Seal Tape, page 24

• Assembling the Mounting Hardware, page 26

• Attaching the Mounting Bracket, page 29

• Rooftop Support or Small Mast Diameters, page 30

• Mounting the Access Point on a Support, page 31

Personnel installing the access point must understand wireless installation techniques and grounding methods.

Note To meet regulatory restrictions, the external antenna access point unit and the external antenna must be

These procedures focus on general mounting and cable-routing topics. For information about assembling the mounting hardware, see the “Assembling the Mounting Hardware” section on page 26.

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Required Tools and Fasteners

This section describes the required tools, cables, and fasteners.

Tools

Mounting the access point requires the following tools:

• 7-mm, 8-mm, and 13-mm wrench or socket for mult-function mount

• Two 7/16 wrenches or sockets for roof mount

• Crimping tool for F-connectors that accommodates RG6/U cable (http://www.tessco.com)

• Crimping tool for ground lug, Panduit CT-1004 or equivalent (http://onlinecatalog.panduit.com)

You may also require tools for user-supplied hardware or fasteners.

Cables

Cisco recommends the following types of coaxial cable for the access point-to-power injector connections:

Mounting the Access Point

Fasteners

Table 1 Recommended Coaxial Cable Types

Cable Type Belden Part # Times Fiber Part # Channel Master Part #

RG6 9077 2360-T660-VB or

2560-T690-VB

RG59/U 1426A 02345-T5953-VB 9540

RG59/U 1505A 02183-T5967-VB –

RG11/U 8213 02362-T1153-VB –

Identify requirements for special hardware or fasteners that are not supplied in the installation kit. For example, it might be necessary to secure the access point to an unusually large-diameter pipe or odd-shaped structural member that the supplied mounting bracket cannot accommodate.

The rooftop or wall mounting bracket requires the following user-provided fasteners:

• Wooden structure—four 1/4 x 1 inch (minimum) lag bolts

• Hollow walls—four 1/4-20 x 2 3/4 molly anchors

• Concrete structure—four 1/4 x 1 3/4 inch (minimum) bolts with concrete anchors

The wall or ceiling mounting bracket requires the following user-provided fasteners:

• Wooden structure—three 1/4 x 1 inch (minimum) lag bolts

9539

• Hollow walls—three 1/4-20 x 2 3/4 molly anchors

• Concrete structure—three 1/4 x 1 3/4 inch (minimum) bolts with concrete anchors

Note For the user-provided fasteners, you must use the appropriate drill size recommended by your fastener

vendor.

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Cisco Aironet 1300 Series Lightweight Outdoor Access Point Mounting Instructions

Mounting the Access Point

Pole or tower mounting requires U bolts that fit the pole or mast in use. One source is One source is McMaster-Carr’s web site.

Document all the necessary tools, parts, brackets, hardware and accessories that are required for the installation and make sure you have them all before starting.

Window Mounting

When you are deploying a wireless access point link through a window, the window glass can introduce significant signal loss. Typical losses range from 5 to 15 dB per window, depending upon the type of glass. Deployment planning should take this extra loss into account conservatively when planning antenna gains and power settings. A thorough site survey is critical for deployments that require penetration through windows.

For additional information on a window mounting bracket, refer to the following URL:

http://www.terra-wave.com/shop/above-ceiling-tile-mounting-bracket-with-adjustable-height-p-665.ht ml

General Guidelines

Many types of window glass allow radio signals to pass through easily while some types greatly restrict radio signals. These are some general guidelines for operating through window glass:

• Avoid glass with metallic content or metallic coatings

• Avoid glass with conductive gas between the panes

• Avoid glass with embedded wire

• Select windows at roughly the same height at both ends

• Select windows with the least thickness

• Ensure that radio signal quality tests are conducted through the glass before finalizing the site

selection

Mounting Above a Suspended Ceiling

The access point can be mounted above a suspended ceiling in environmental air space using the wall or ceiling mounting bracket (refer to the “Wall or Ceiling Mounting Bracket” section on page 13).

Note The access point and power injector have adequate fire resistance and low smoke-producing

characteristics to make them suitable for operation in a building's environmental air space (such as above suspended ceilings) in accordance with Section 300-22(C) of the National Electrical Code (NEC).

Note When mounting the access point or power injector in a building's environmental air space, you must use

coax and Ethernet cables suitable for operation in environmental air space in accordance with Section 300-22(C) of the National Electrical Code (NEC).

Note The power module is not rated for mounting above suspended ceilings.

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Cisco AIR-LAP1310G Mounting Instructions

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Frequently Asked Questions

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