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Aruba AP-85 Outdoor

Access Point Series

Installation Guide

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Open Source Code

Certain Aruba products include Open Source software code developed by third parties, including software code subject to the GNU General Public License (GPL), GNU Lesser General Public License (LGPL), or other Open Source Licenses. The Open Source code used can be found at this site:

http://www.arubanetworks.com/open_source

Legal Notice

The use of Aruba Networks, Inc. switching platforms and software, by all individuals or corporations, to terminate other vendors’ VPN client devices constitutes complete acceptance of liability by that individual or corporation for this action and indemnifies, in full, Aruba Networks, Inc. from any and all legal actions that might be taken against it with respect to infringement of copyright on behalf of those vendors.

Warranty

This hardware product is protected by the standard Aruba warranty of one year parts/labor. For more information, refer to the ARUBACARE SERVICE AND SUPPORT TERMS AND CONDITIONS.

Altering this device (such as painting it) voids the warranty.

www.arubanetworks.com

1344 Crossman Avenue Sunnyvale, California 94089

Phone: 408.227.4500 Fax 408.227.4550

Aruba AP-85 Outdoor Access Point Series | Installation Guide 0510323-06 | October 2008

Preface ................................................................................................................................... 5

Guide Overview .....................................................................................................5

Related Documents ............................................................................................... 5

Contacting Aruba Networks .................................................................................. 6

Chapter 1 AP-85 Series Hardware Overview .......................................................... 7

About the AP-85 Series .........................................................................................7

AP-85 Series Operation ..................................................................................7

Minimum Software Requirements .........................................................................8

Package Checklist ................................................................................................. 8

Hardware Model Overview ....................................................................................9

AP-85 Series Front View...........................................................................9

AP-85 Series Rear View............................................................................ 9

AP-85 Series Top View........................................................................... 10

AP-85TX Bottom View............................................................................10

AP-85FX/LX Bottom View....................................................................... 11

LED Status Indicators ...................................................................................13

Optional Accessories........................................................................................... 14

Chapter 2 Outdoor Planning and Deployment Considerations........................... 15

Planning and Deployment Considerations ..........................................................15

Scale Requirements ......................................................................................15

Identifying Known RF Absorbers/Reflectors/Interferences Sources ............15

RF Absorbers..........................................................................................15

RF Reflectors ..........................................................................................15

RF Interference Sources ......................................................................... 16

Line of Sight (Radio Path Planning)............................................................... 16

Antenna Height ............................................................................................. 17

Antenna Position and Orientation .................................................................18

Radio Interference......................................................................................... 19

Weather Conditions ...................................................................................... 19

Ethernet Cabling ...........................................................................................19

Grounding .....................................................................................................19

Chapter 3 AP-85 Series Installation....................................................................... 21

Pre-Installation Network Setup............................................................................21

Pre-Installation Checklist .............................................................................. 21

Access Point Setup ............................................................................................. 21

Verifying Pre-Installation Connectivity ..........................................................22

Provisioning the AP .......................................................................................22

Installing the AP-85.......................................................................................22

Mounting the AP-85 ............................................................................... 23

Positioning the AP-85............................................................................. 27

Connecting Required Cables.................................................................. 28

Lightning Arrestor Installation .................................................................31

Antenna Installation ................................................................................31

Verifying Post-Installation Connectivity ........................................................ 32

Aruba AP-85 Outdoor Access Point Series | Installation Guide | 3

Configuring the AP-85................................................................................... 32

Appendix A Understanding Antennas ...................................................................... 33

Aruba Antennas ...................................................................................................33

Understanding Wireless Antennas ................................................................ 33

Omni-Directional vs. Directional Coverage ............................................33

Antenna Beamwidth, Pattern, and Gain Considerations ........................34

Understanding Antenna Pattern Plots and Specifications .....................36

Detachable Antenna Selection ...................................................................... 37

Detachable Outdoor Antenna Types ...................................................... 37

Detachable Antenna Selection Tips........................................................37

Appendix B Product Specifications.......................................................................... 43

Mechanical (AP-85TX, AP-85FX, and AP-85LX) ...........................................43

Electrical........................................................................................................ 43

AP-85TX ................................................................................................. 43

AP-85FX ................................................................................................. 44

AP-85LX.................................................................................................. 44

Maximum Power Draw ........................................................................... 44

Wireless LAN.................................................................................................44

Safety and Regulatory Compliance ..................................................................... 45

Declaration of Conformity .............................................................................45

European Headquarters .........................................................................46

Instructions for Use in a Potentially Explosive Atmosphere ................................ 46

Proper Disposal of Aruba Equipment ..................................................................47

Waste of Electrical and Electronic Equipment ..............................................47

European Union RoHS ..................................................................................48

China RoHS .................................................................................................. 48

Index..................................................................................................................................... 49

4 | Aruba AP-85 Outdoor Access Point Series | Installation Guide

Preface

This preface includes the following information:

z An overview of the contents of this manual

z A list of related documentation for further reading

z Aruba Networks support and service information

Guide Overview

z Chapter 1, “AP-85 Series Hardware Overview” on page 7 provides a detailed hardware overview of the three AP-85

models: the AP-85TX, the AP-85FX, and the AP-85LX.

z Chapter 2, “Outdoor Planning and Deployment Considerations” on page 15 provides key questions to ask and items to

consider when deploying an outdoor wireless network.

z Chapter 3, “AP-85 Series Installation” on page 21 describes the multi-step process for successful installation and

deployment of an AP-85.

z Appendix A, “Understanding Antennas” on page33 provides key tools that will help you understand Aruba antenna

specifications.

z Appendix B, “Product Specifications” on page43 includes product technical specifications and safety and regulatory

compliance information.

Contacting Aruba Networks

Web Site Support

Main Site http://www.arubanetworks.com

Support Site https://support.arubanetworks.com

Software Licensing Site https://licensing.arubanetworks.com/login.php

Wireless Security Incident Response Team (WSIRT)

Support Emails

z Americas and APAC support@arubanetworks.com

z EMEA emea.support@arubanetworks.com

WSIRT Email Please email details of any security problem found in an Aruba product.

Telephone Support

Aruba Corporate +1 (408) 227-4500

FAX +1 (408) 227-4550

Support

http://www.arubanetworks.com/support/wsirt.php

wsirt@arubanetworks.com

z United States 800-WI-FI-LAN (800-943-4526)

z Universal Free Phone Service Number

+800-4WIFI-LAN (+800-49434-526) (UIFN): Australia, Canada, China, France, Germany, Hong Kong, Ireland, Israel, Japan, Korea, Singapore, South Africa, Taiwan, and the UK.

z All Other Countries +1 (408) 754-1200

6 | Preface Aruba AP-85 Outdoor Access Point Series | Installation Guide

NOTE

CAUTION

WARNING

Chapter 1

AP-85 Series Hardware Overview

About the AP-85 Series

The AP-85 Series consists of resilient, environmentally hardened, outdoor rated, dual-band IEEE 802.11a/b/g devices, which can be configured for deployment as a wireless access point, air monitor, mesh point, or mesh portal. This outdoor access point series is part of Aruba’s comprehensive wireless network solution. The AP-85 Series works only in conjunction with an Aruba Mobility Controller and each AP can be centrally managed, configured, and upgraded through the controller.

The AP-85 Series consists of the following models:

z AP-85TX (Ethernet)

z AP-85FX (Multi-mode Fiber)

z AP-85LX (Single-mode Fiber)

AP-85 Series Operation

z Wireless access point (IEEE 802.11 a/b/g)

z Wireless air monitor (IEEE 802.11 a/b/g)

z Wireless access point with wireless backhaul support*

z Enterprise mesh point (MP; Mesh license required)*

z Enterprise mesh portal (MPP; Mesh license required)*

z Protocol-independent networking functionality

z IEEE 802.3af Power over Ethernet (PoE) compatible (AP-85TX only)

Items noted with a asterisk (*) require a secure enterprise mesh license. Contact your Aruba sales representative for a complete listing of available software licenses.

Aruba access points must be installed by trained service personnel. These installers are responsible for ensuring that grounding is available and it meets applicable local and national electrical codes.

Do not work on an AP and do not connect or disconnect cables during periods of lightning activity.

Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Hardware Overview | 7

NOTE

Minimum Software Requirements

The AP-85 Series requires ArubaOS 3.2.0 or later.

ArubaOS software builds prior to version 3.2.0 do not support the AP-85 Series. If your network currently runs on a software build prior to 3.2.0, you must upgrade the software on your master and local controllers to 3.2.0 or later prior to installing an AP-85 in your existing network.

Package Checklist

Included with all three AP-85 models:

z Aruba AP-85 outdoor access point (TX, FX, or LX model)

z AP-85 wall/pole/mast mount kit (fixture with hardware)

z 8-foot DC outdoor rated power cable

z Weatherproof connector shell for RJ-45 terminated CAT 5 cable

 LTW P/N LTWRJS-00PFFA-SL8001

Aruba AP-85 Outdoor Access Point Installation Guide

Included with the AP-85FX/LX models only:

z 8-foot AC outdoor rated power cable (for FX/LX models only; US and EU options available)

z Fiber Optic Termination Kit

 AP-85FX: Tyco P/N 1828618-1

 AP-85LX: Tyco P/N 1828618-2

Inform your supplier if any parts are incorrect, missing, or damaged. If possible, retain the carton, including the original packing materials. Use these materials to repack and return the unit to the supplier if needed.

Optional accessories are available for use with the AP-85 and are sold separately. Refer to "Optional

Accessories" on page14 for further details.

8 | AP-85 Series Hardware Overview Aruba AP-85 Outdoor Access Point Series | Installation Guide

arun_0100

LED Status Indicators

Mounting Holes

Hardware Model Overview

AP-85 Series Front View

The front of the AP-85 Series has LED status indicators (see Figure 1). For descriptions of the LEDs and their behavior, refer to "LED Status Indicators" on page13.

Figure 1 AP-85 Series Front View

AP-85 Series Rear View

The rear of the AP-85 Series has four mounting holes (see Figure 2). Refer to Chapter 3, “AP-85 Series Installation” on

page 21 for mounting and installation instructions.

Figure 2 AP-85 Series Rear View

Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Hardware Overview | 9

CAUTION

Four, Female N-Type Antenna Interfaces.

RADIO 0 supports 2.4 Ghz; RADIO 1 supports 5 GHz

AP-85 Series Top View

The top of the AP-85 Series consists of four, female N-type antenna interfaces (see Figure 3).

Figure 3 AP-85 Series Top View

The AP-85 Series requires the use of detachable, outdoor rated antennas. Select the correct antenna type to support the required frequency band (2.4 or 5 GHz) and the desired coverage pattern.

The four, female N-type antenna interfaces on the AP-85 models are grouped into diversity pairs, one pair is marked as RADIO 0 and the other pair is marked as RADIO 1. RADIO 0 supports 2.4 GHz frequency band antennas and RADIO 1 supports 5 GHz frequency band antennas.

To select the correct antenna type for the deployment, download and read Aruba’s outdoor antenna specifications:

www.arubanetworks.com/products/access-points/antennas.php

http://

For further details, see Appendix A, “Understanding Antennas” on page33.

An Aruba Lightning Arrestor, AP-LAR-1, must be installed on each antenna port for protection against lightning induced surges. Failure to use an AP-LAR-1 can void the warranty of an Aruba outdoor AP model and renders the AP susceptible to failure from lightning induced surges.

AP-85TX Bottom View

The bottom of the AP-85TX unit (see Figure 5) has the following ports and connections:

z DC PWR 12 VDC, 2 A: The AP is capable of accepting DC power in the range of 8 to 16 VDC. If the AP-85TX is not

connected to a PoE source, the AP must be powered via a DC power source. An outdoor rated, two-wire, 8-foot long DC power cable (wiring harness) is supplied with the unit. For proper installation instructions, see "DC and AC Power

Cables" on page30.

z LAN/POE 48 VDC, 350 mA: Also known as a 10/100Base-T Fast Ethernet (RJ-45) port, which is IEEE 802.3 BaseT and

802.3u 100BaseTX compliant. This port supports IEEE 802.3af Power over Ethernet (PoE), accepting 48 VDC as a standards-defined powered device (PD) from a power sourcing equipment (PSE), such as a PoE midspan injector. The AP-85TX also supports SPoE (Serial Power over Ethernet).

10 | AP-85 Series Hardware Overview Aruba AP-85 Outdoor Access Point Series | Installation Guide

Figure 4 10/100Base-T Fast Ethernet (RJ-45) Port Pin-Out

CAUTION

AP-85

10/100Base-T

Fast Ethernet (RJ-45)

RJ-45 Female Pin-Out

*POE optional

**Serial optional

Serial RxD** Serial RGND** (POE positive*)

Serial TxD** Serial TGND** (POE negative*)

1 2 3 4 5 6 7 8

ETH Tx+ (POE negative*) ETH Tx– (POE negative*) ETH Rx+ (POE positive*)

ETH Rx– (POE positive*)

Direction

Input

Output

Grounding Point

z Grounding Point

It is important that the AP-85TX be properly grounded and a grounding point is provided on the bottom of the AP-85TX model. A professional installer should ensure that grounding is available and meets applicable local and national electrical codes.

Figure 5 AP-85TX Bottom View

AP-85FX/LX Bottom View

The bottom of the AP-85FX/LX unit (see Figure 5) has the following ports and connections:

z DC PWR 12 VDC, 2 A: The AP can accept DC power in the range of 8 to 16 VDC. If the AP-85FX/LX is not connected to an

AC power source, the AP must be powered by a DC power source. An outdoor rated, two-wire, 8-foot long DC power cable (wiring harness) is supplied with the unit. For proper installation instructions, see "DC and AC Power Cables" on

page30.

z LAN - OPTICAL:

 AP-85FX: This model has a 100BASE-FX data uplink port for multi-mode, dual-fiber network connectivity. A multi-

 AP-85LX: This model has a 100BASE-LX data uplink port for single-mode, dual-fiber network connectivity. A single-

z CONSOLE: A serial console port is provided for connection to a terminal, allowing direct local management.

Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Hardware Overview | 11

mode, fiber patch cable with a duplex LC connector is required for use. The cable is not included and must be purchased separately.

CAUTION

Serial

Console Port

1 2 3 4 5 6 7 8

TxD

GND RxD

RJ-45 Female Pin-Out

Direction

Input

Output

GND

Figure 6 Serial Console Port Pin-Out

Communication settings for the serial console port are listed in Table 1.

Table 1 Console Terminal Settings

Baud Rate Data Bits Parity Stop Bits Flow Control

9600 8 None 1 None

z AC PWR 90-228 V~, 500 mA: The AP can accept AC power at the limits specified on the unit. If the AP-85FX/LX is not

connected to a DC power source, the AP must be powered by an AC power source. An outdoor rated, three-wire, 8-foot long AC power cable (wiring harness) is supplied with the unit. Some installation locations are in the scope and under the authority of the National Electric Code (NEC or NFPA 70), and some are not, as indicated in Article 90.2. The NEC applies where:

 The product must be grounded reliably using the external screw, as shown in this installation guide, and not solely

depend on the ground provided in the power supply cord.

 The power cord should be less than 15" long.

 The plug for the power cord should be installed in a dry location, such as with the use of an NRTL listed receptacle

box with cover that is weatherproof with the power plug inserted into the receptacle (such as the MultiMac model from Taymac Corp).

The NEC does not apply when:

 The installation must follow all regulations and established practices that are applicable for the particular installation

environment.

For international outdoor use:

 The product must be grounded reliably using the external screw, as shown in this installation guide, and not solely

 The plug for the power cord should be installed in a dry location, such as with the use of a suitable certified

z Grounding Point

12 | AP-85 Series Hardware Overview Aruba AP-85 Outdoor Access Point Series | Installation Guide

depend on the ground provided in the power supply cord. Considerations should include selection of weatherproofing means (IP67 or better), proper strain relieving for the power cord, and adherence to all applicable regulations and local practices.

receptacle box with a cover, which is weatherproof (IP67 or better) with the power plug inserted into the receptacle.

It is important that the AP-85FX/LX be properly grounded; a grounding point is provided on the bottom of the AP-85FX/LX model. The installer (trained service personnel) should ensure that grounding is available and that the grounding meets applicable local and national electrical codes.

NOTE

Grounding Point

Figure 7 AP-85FX/LX Bottom View

LED Status Indicators

All AP-85 models include visual indicators for power, link, and radio status. Additionally, each radio has a seven-LED array that indicates received signal strength (RSSI).

The RSSI LED indicators represent varying degrees in the RSSI level. The absence of a signal is indicated by no LED response, and full signal strength is indicated when all seven LEDs are active and lit.

Table 2 lists the meanings of the LEDs on the AP-85 outdoor access points.

Table 2 AP-85 LED Status Indicators

LED Function Indicator Status

PWR AP Power/Ready

Status

LINK/ACT (applicable to the AP-85TX only)

LINK/ACT (applicable to the AP-85FX/LX models only)

RADIO 0 Radio 0 Status Off Radio 0 disabled

LAN/Network Link Status

Off No power to AP

Flashing Device booting, not ready

On Device ready

Off Ethernet link unavailable

On (Yellow) 10 Mbs Ethernet link negotiated

On (Green) 100 Mbs Ethernet link negotiated

Blinking Traffic on Ethernet link

Off Ethernet link unavailable

On (Green) 100 Mbs Ethernet link negotiated

Blinking Traffic on Ethernet link

On (Green) Radio 0 enabled in WLAN mode

RADIO 1 Radio 1 Status Off Radio 1disabled

On (Green) Radio 1 enabled in WLAN mode

Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Hardware Overview | 13

NOTE

Table 2 AP-85 LED Status Indicators (Continued)

LED Function Indicator Status

RSSI (Radio 0) RSSI Level for

Off RSSI disabled/no signal

Radio 0

7 Step Progressive Bars

Each bar represents a progressive increase in signal strength, with 7 bars representing maximum signal

3/6/9/12/15/21/27 dB RSSI

strength (100%). Minimum data rate: Two lit LEDs Maximum data rate: Six lit LEDs

RSSI (Radio 1) RSSI Level for

Off RSSI disabled/no signal

Radio 1

7 Step Progressive Bars

Each bar represents a progressive increase in signal strength, with 7 bars representing maximum signal

3/6/9/12/15/21/27 dB RSSI

strength (100%). Minimum data rate: Two lit LEDs Maximum data rate: Six lit LEDs

Optional Accessories

The following items are available for use with AP-85 outdoor access points and are sold separately. Contact your Aruba sales representative for details and assistance.

z Aruba 85 Field Replaceable Mount Kit: P/N AP-85-MNT-S

z Aruba 85 Low-Profile Wall Mount Bracket: P/N AP-85-MNT-2

z Aruba 85 Streetlight Power Tap Adapter (8 ft): P/N AP-85-PT-1

z Aruba 85 AC Power Provisioning Cable (3 ft; indoor rated): P/N AP-85-CBL-1

z Aruba 85 Antenna Mount Bracket: P/N AP-85-MNT-1

z Aruba 85 AC Power Cable (8 ft): P/N AP-85-CBL-2-US-S or AP-85-CBL-2-EU-S

z Aruba 85 AC Power Cable (40 ft): P/N AP-85-CBL-3-US-S or AP-85-CBL-3-EU-S

z Aruba 85 DC Power Cable (8 ft): P/N AP-85-CBL-4-S

z Aruba Lightning Arrester: P/N AP-LAR-1

AC power cables are available for use with the AP-85FX/LX models only.

14 | AP-85 Series Hardware Overview Aruba AP-85 Outdoor Access Point Series | Installation Guide

Chapter 2

Outdoor Planning and Deployment Considerations

Planning and Deployment Considerations

Prior to deploying an outdoor wireless network, the environment must be evaluated to plan for a successful Aruba WLAN deployment. Successfully evaluating the environment enables the proper selection of Aruba APs and antennas and assists in the determination of their placement for optimal RF coverage. This process is considered WLAN or RF planning and Aruba’s system engineers can assist in the outdoor planning process.

Scale Requirements

The potentially immense scale of outdoor deployments requires consideration of factors that may not be as important in a typical indoor deployment:

z Range (distance): Range or distance between APs must be taken into account during the planning phase. Available AP

mounting locations are often far less flexible in an outdoor environment. Regardless of these outdoor restrictions, the desired goal is to achieve results similar to an indoor deployment: a “dense” RF deployment that supports advanced Aruba features, such as ARM, efficient client roaming, and failover.

z Elevation: Proper consideration and planning for elevation differences between APs (AP to AP) and AP to Client can be

critical to success. To plan for these differences in elevation, it is important to understand the 3D coverage pattern provided by the antennas that will be deployed in the environment.

z Non-Fixed Considerations: The RF environment might change on a day to day basis. Keep non-fixed items, such as

shipping containers, vehicles, and future building construction, in mind when planning for an outdoor deployment.

Identifying Known RF Absorbers/Reflectors/Interferences Sources

Identifying known RF absorbers/reflectors/interference sources while out in the field during the installation phase is critical. Even though outdoor environments consist of fewer RF absorbers/reflectors/interference sources compared to indoor environments, ensure that these sources are identified and taken into consideration when installing and mounting an AP to its fixed outdoor location.

RF Absorbers

z Cement/Concrete

z Natural Items: Trees/vegetation

z Brick

RF Reflectors

z Metal Objects: Roof-installed air-conditioning equipment, chain link fences (depending on aperture size), other wire

fences, or water pipes

Aruba AP-85 Outdoor Access Point Series | Installation Guide Outdoor Planning and Deployment Considerations | 15

NOTE

Radio Line of Sight

Visual Line of Sight

RF Interference Sources

z Other 802.11a/b/g or broadband access equipment operating nearby

z Industrial RF welding equipment or other Industrial, Scientific and Medical (ISM) equipment that utilizes RF to heat or

alter the physical properties of materials

z Military, Commercial Aviation or Weather Radar Systems

Line of Sight (Radio Path Planning)

AP-85 Series access points are capable of performing as one of the following:

z Enterprise mesh point (MP)

z Enterprise mesh portal (MPP)

To configure the AP-85 as a mesh point or mesh portal, you must install a mesh software license on a Mobility Controller as a software license key. Contact your sales account manager or authorized reseller to obtain the software license. There are several mesh software licenses available that support different maximum number of APs. The licenses are cumulative; each additional license installed increases the number of APs (mesh nodes) supported by the Mobility Controller.

A wireless bridge or mesh link requires a “radio line of sight” between the two antennas for optimum performance. The concept of radio line of sight involves the area along a link through which the bulk of the radio signal power travels. This area is known as the first Fresnel Zone of the radio link. For a radio link, no object (including the ground) must intrude within 60% of the first Fresnel Zone.

Figure 8 illustrates the concept of a good radio line of sight.

Figure 8 Line of Sight

If there are obstacles in the radio path, there may still be a radio link but the quality and strength of the signal will be affected. Calculating the maximum clearance from objects on a path is important as it directly affects the decision on antenna placement and height. It is especially critical for long-distance links, where the radio signal could easily be lost.

When planning the radio path for a wireless bridge or mesh link, consider these factors:

z Avoid any partial line of sight between the antennas

z Be cautious of trees or other foliage that may be near the path, or may grow and obstruct the path.

z Be sure there is enough clearance from buildings and that no building construction may eventually block the path.

z For very long distance links, the curvature of the earth (20 cm per km) may need to be considered in the calculation of

16 | Outdoor Planning and Deployment Considerations Aruba AP-85 Outdoor Access Point Series | Installation Guide

relative heights.

NOTE

z Check the topology of the land between the antennas using topographical maps, aerial photos, or even satellite image

data (software packages are available that may include this information for your area)

z Avoid a path that may incur temporary blockage due to the movement of cars, trains, or aircraft.

Antenna Height

A reliable wireless bridge or mesh link is usually best achieved by mounting the antennas at each end high enough for a clear radio line of sight between them. The minimum height required depends on the distance of the link, obstacles that may be in the path, topology of the terrain, and the curvature of the earth (for links over 3 miles).

For long-distance links, the AP may have to be mounted on masts or poles that are tall enough to attain the minimum required clearance. Use the following table to estimate the required minimum clearance above the ground or path obstruction (for 5 GHz bridge links).

Table 3 Antenna Minimum Height and Clearance Requirements

Max Clearance for

Total Link Distance

60% of First Fresnel Zone at 5.8 GHz

0.25 mile (0.402 km) 4.6 ft (1.4 m) 0.007 ft (0.002 m) 4.6 ft (1.4 m)

0.5 mile (0.805 km) 6.2 ft (1.9 m) 0.03 ft (0.010 m) 6.2 ft (1.9 m)

1 mile (1.6 km) 8.9 ft (2.7 m) 0.13 ft (0.04 m) 8.9 ft (2.7 m)

2 miles (3.2 km) 12.5 ft (3.8 m) 0.5 ft (0.15 m) 13.1 ft (4.0 m)

3 miles (4.8 km) 15.4 ft (4.7 m) 1.0 ft (0.3 m) 16.4 ft (5.0 m)

4 miles (6.4 km) 17.7 ft (5.4 m) 2.0 ft (0.6 m) 19.7 ft (6.0 m)

5 miles (8 km) 20 ft (6.1 m) 3.0 ft (0.9 m) 23 ft (7.0 m)

7 miles (11.3 km) 23.6 ft (7.2 m) 6.2 ft (1.9 m) 30 ft (9.1 m)

9 miles (14.5 km) 27 ft (8.2 m) 10.2 ft (3.1 m) 37 ft (11.3 m)

12 miles (19.3 km) 30.8 ft (9.4 m) 18.0 ft (5.5 m) 49 ft (14.9 m)

15 miles (24.1 km) 34.4 ft (10.5 m) 28.0 ft (8.5 m) 62.7 ft (19.1 m)

To avoid any obstruction along the path, the height of the object must be added to the minimum clearance required for a clear radio line of sight. Consider the following simple example, illustrated in

Figure 9.

Approximate Clearance for Earth Curvature

Total Clearance Required at Mid-point of Link

Aruba AP-85 Outdoor Access Point Series | Installation Guide Outdoor Planning and Deployment Considerations | 17

CAUTION

NOTE

3 miles (4.8 km)

5.4 m

17 m

20 m

2.4 m

12 m

1.4 m

Radio Line of Sight

Visual Line of Sight

Figure 9 Antenna Height and Line of Sight

A wireless bridge or mesh link is deployed to connect building A to building B, which is located three miles (4.8 km) away. Mid-way between the two buildings is a small tree-covered hill. From the above table it can be seen that for a three-mile link, the object clearance required at the mid-point is 5.3 m (17.4 ft). The tree tops on the hill are at an elevation of 17 m (56 ft), so the antennas at each end of the link need to be at least 22.3 m (73 ft) high. Building A is six stories high, or 20 m (66 ft), so a

2.3 m (7.5 ft) mast or pole must be constructed on its roof to achieve the required antenna height. Building B is only three stories high, or 9 m (30 ft), but is located at an elevation that is 12 m (39 ft) higher than building A. To mount an antenna at the required height on building B, a mast or pole of 1.3 m (4.3 ft) is needed.

Never construct a radio mast, pole, or tower near overhead power lines.

Local regulations may limit or prevent construction of a high radio mast or tower. If your wireless bridge or mesh link requires a high radio mast or tower, consult a professional contractor for advice.

Antenna Position and Orientation

Once the required antenna height has been determined, other factors affecting the precise position of the wireless bridge or mesh link must be considered:

z Be sure there are no other radio antennas within 2 m (6 ft) of the wireless bridge or mesh link. These include other WiFi

radio antennas.

z Place the wireless bridge or mesh link away from power and telephone lines.

z Avoid placing the wireless bridge or mesh link too close to any metallic reflective surfaces, such as roof-installed air-

conditioning equipment, tinted windows, wire fences, or water pipes. Ensure that there is at least 5 feet clearance from such objects.

z The wireless bridge or mesh link antennas at both ends of the link must be positioned with the same polarization

direction, either horizontal or vertical. Proper alignment helps to maximize throughput.

18 | Outdoor Planning and Deployment Considerations Aruba AP-85 Outdoor Access Point Series | Installation Guide

CAUTION

Radio Interference

The avoidance of radio interference is an important part of wireless link planning. Interference is caused by other radio transmissions using the same or an adjacent channel frequency. You should first scan your proposed site using a spectrum analyzer to determine if there are any strong radio signals using the 802.11a/b/g channel frequencies. Always use a channel frequency that is furthest away from another signal.

If radio interference is still a problem with your wireless bridge or mesh link, changing the antenna direction may improve the situation.

Weather Conditions

When planning wireless bridge or mesh links, you must take into account any extreme weather conditions that are known to affect your location. Consider these factors:

z Temperature: The wireless bridge or mesh link is tested for normal operation in temperatures from

-. Operating in temperatures outside of this range may cause the unit to fail

z Wind Velocity: The wireless bridge or mesh link can operate in winds up to. You must consider the known maximum

wind velocity and direction at the site and be sure that any supporting structure, such as a pole, mast, or tower, is built to withstand this force.

z Lightning: Rain: The wireless bridge or mesh link is weatherproofed against rain. However, it is recommended to apply

weatherproof sealing tape around the Ethernet port and antenna connectors for extra protection. If moisture enters a connector, it may cause a degradation in performance or even a complete failure of the link.

z Snow and Ice: Falling snow, like rain, has no significant effect on the radio signal. However, a buildup of snow or ice on

antennas may cause the link to fail. In this case, the snow or ice has to be cleared from the antennas to restore operation of the link.

Ethernet Cabling

When a suitable antenna location has been determined, you must plan a cable route from the wireless bridge or mesh link outdoors to a suitable power and/or network source.

Consider these points:

z The Ethernet cable length should never be longer than 90 m (295 ft).

z Determine a building entry point for the cable (if applicable).

z Determine if conduits, bracing, or other structures are required for safety or protection of the cable.

z For lightning protection at the power injector end of the cable, consider using a lightning arrestor immediately before the

cable enters the building

Grounding

It is important that the wireless bridge or mesh link, cables, and any supporting structures are properly grounded. Each AP85 Series access point includes a grounding screw for attaching a ground wire. Be sure that grounding is available and that it meets local and national electrical codes. Ground the access point first using the external ground stud on the unit before making any other connection.

Aruba AP-85 Outdoor Access Point Series | Installation Guide Outdoor Planning and Deployment Considerations | 19

20 | Outdoor Planning and Deployment Considerations Aruba AP-85 Outdoor Access Point Series | Installation Guide

NOTE

Chapter 3

AP-85 Series Installation

Pre-Installation Network Setup

When WLAN planning is complete and the appropriate products and their placement have been determined, the Aruba Mobility Controller(s) must be installed and initial setup performed before the Aruba Outdoor Access Points. are deployed.

For initial setup of the Mobility Controller, refer to the ArubaOS Quick Start Guide for the software version installed on your controller.

Pre-Installation Checklist

Before installing your AP-85, be sure that you have the items listed in Table 4.

Table 4 AP-85 Pre-Installation Checklist

AP-85TX AP-85FX/LX

z Fast Ethernet (FE) cable of required length z IEEE 802.3af compliant PoE source (Aruba

Mobility Controller or Midspan device) or DC power source

z Aruba Mobility Controller configured and

installed on the network

z Layer 2/3 network connectivity to your AP-85 z One of the following network services:

1. Aruba Discovery Protocol (ADP)

2. DNS server with an “A” record

3. DHCP Server with vendor specific options

z Fiber patch cable of required length:

1. Single-mode fiber patch cable for the AP-85LX

2. Multi-mode fiber patch cable for the AP-85FX

z AC or DC power source z Aruba Mobility Controller configured and installed

on the network

z Layer 2/3 network connectivity to your AP-85 z One of the following network services:

1. Aruba Discovery Protocol (ADP)

2. DNS server with an “A” record

3. DHCP Server with vendor specific options

Access Point Setup

It is important that you follow the guidelines in the previous section, "Pre-Installation Network

Setup" on page21, before attempting to set up and install an AP-85.

Successful setup of an AP-85 consists of five tasks, which must be performed in the following order:

1. Verify pre-installation connectivity

2. Provision the AP-85

3. Install the AP-85

4. Verify post-installation connectivity

5. Configure the AP-85

Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Installation | 21

NOTE

CAUTION

NOTE

CAUTION

Aruba Networks, in compliance with governmental requirements, has designed the AP-85 such that only authorized network administrators can change configuration settings. For more information about AP configuration, refer to the ArubaOS Quick Start Guide and ArubaOS User Guide.

Access points are radio transmission devices and as such are subject to governmental regulation. Network administrators responsible for the configuration and operation of access points must comply with local broadcast regulations. Specifically, access points must use channel assignments appropriate to the location in which the access point will be used.

Verifying Pre-Installation Connectivity

Before you install APs in a network environment, make sure that the APs will be able to locate and connect to the Mobility Controller when they are powered on.

Specifically, you must verify the following conditions:

z When connected to the network, each AP is assigned a valid IP address.

z APs can locate the Mobility Controller (Mobility ControllerDiscovery).

Refer to the ArubaOS Quick Start Guide for instructions on locating and connecting to the Mobility Controller.

Provisioning the AP

Each AP has unique provisioning parameters. These local AP parameters are initially configured on the Mobility Controller. The Mobility Controller pushes the parameters out to the specific AP, where they are stored. Aruba recommends that you configure the provisioning settings using the ArubaOS Web UI only. Refer to the ArubaOS User Guide for complete details.

If the AP-85 is to be deployed in a mesh networking environment, the AP-85 must be provisioned as a mesh portal or a mesh point before deployment.

Installing the AP-85

RF Radiation Exposure Statement: This equipment complies with FCC RF radiation exposure limits. This equipment should be installed and operated with a minimum distance of 13.8 inches (35 cm) between the radiator and your body for 2.4 GHz and 5 GHz operations. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

Aruba Access Points, AP-LAR-1 lightning arresters, and cable termination kits must be installed by trained service personnel. These installers are responsible for ensuring that grounding is available and that grounding meets applicable local and national electrical codes.

22 | AP-85 Series Installation Aruba AP-85 Outdoor Access Point Series | Installation Guide

WARNING

NOTE

Mounting Holes

Mounting Bolts (M8 bolts, 4x)

Do not work on an AP and do not connect or disconnect cables during periods of lightning activity.

Mounting the AP-85

Preparing the AP-85 for Installation

1. Install the provided mounting bolts (M8 bolts with captive flat washer) into the four mounting holes on the rear of the AP-85 (see Figure 10). Leave approximately two to three threads showing on each mounting bolt.

Figure 10 Installing the Mounting Bolts

Wall Mounting the AP-85

To wall mount an AP-85:

1. Secure the mounting plate to a flat wall using the appropriate screws and anchors for your mounting application (see

Figure 11).

Wall mount hardware is not included with the mounting plate and must be purchased separately for your mounting application. The mounting plate accepts the following screw or bolt sizes: M4, M5, SAE #8, and SAE #10.

Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Installation | 23

NOTE

Anchors (4x)

Mounting Plate

Screws (4x)

Wall

arun_0127A

Mounting Bolts

Mounting Plate

AP-85

Wall

Figure 11 Attaching the Mounting Plate

2. Seat the AP-85 into the four keyholes on the mounting plate and tighten down the four mounting bolts (M8 bolts) to secure the AP-85 in place (see Figure 12). The mounting plate should rest between the captive flat washer on each mounting bolt and the rear of the AP-85.

Figure 12 shows the AP-85 installed with the antenna jacks at the top of the unit. To install the AP-

85 with the antenna jacks at the side, rotate the unit 90 degrees before seating the unit on the mounting plate.

Figure 12 Wall Mounting the AP-85

Pole Mounting the AP-85 (1.5-inch to 3.5-inch Diameter)

To attach an AP-85 to a pole with a diameter of 1.5 inches to 3.5 inches:

1. Assemble the pole mounting bracket:

24 | AP-85 Series Installation Aruba AP-85 Outdoor Access Point Series | Installation Guide

a. Slide the long T-bolt through the opening in the mounting bracket (see Figure 13).

b. Attach the provided retaining clip to the T-bolt (see Figure 13).

c. Screw the provided nut onto the end of the T-bolt (see Figure 13).

NOTE

arun_0137

Nut (1x)T-Bolt (1x)

Phillips Screws (4x)

Mounting Bracket

Mounting Plate

Retaining Clip

arun_0129

arun_0130

Step A

Step C

Step B

2. Secure the mounting plate to the mounting bracket using the four provided Phillips screws (see Figure 13).

Figure 13 Assembling the Pole Mounting Bracket

3. Attach the pole mounting bracket assembly to a 1.5-inch to 3.5-inch diameter pole and secure the bracket in place (see

Figure 14).

a. Wrap the pole mounting bracket around the pole.

b. Slip the end of the T-bolt with nut through the opening in the pole mounting bracket.

c. Maneuver the T-bolt to the top slot in the pole mounting bracket and tighten down the nut. Verify that the nut is tightly

secured and that the bracket cannot move. It must be secure to support the weight of the AP-85.

Figure 14 Attaching the Pole Mounting Bracket

4. Seat the AP-85 into the four keyholes on the mounting plate and tighten the four mounting bolts (M8 bolts) to secure the AP-85 in place (see Figure 15 and Figure 16). The mounting plate should rest between the captive flat washer on each mounting bolt and the rear of the AP-85.

The pole mounting bracket can be secured to a horizontal or vertical pole. The position of the keyholes on the mounting plate allows you to mount the AP-85 on either pole type with the antenna jacks at the top or the side. To mount the AP-85 with the antenna jacks at the side, rotate the unit 90 degrees before seating the unit on the mounting plate.

Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Installation | 25

arun_0131B

Secured Mounting Bracket

Tightened Mounting Bolts

AP-85

arun_0131C

Secured Mounting Bracket

Tightened Mounting Bolts

AP-85

Figure 15 Vertical Pole Mount Position (1.5-inch to 3.5-inch Diameter Pole)

Figure 16 Horizontal Pole Mount Position (1.5-inch to 3.5-inch Diameter Pole)

Pole Mounting the AP-85 (Pole Diameter Greater than 3.5-inches)

To attach an AP-85 to a pole with a diameter greater than 3.5 inches:

1. Attach the mounting plate to the pole using outdoor rated straps (see Figure 17). Outdoor rated straps are not included with the unit and must be purchased separately.

2. Seat the AP-85 into the four keyholes on the mounting plate and tighten down the four mounting bolts (M8 bolts) to secure the AP-85 in place (see Figure 17). The mounting plate should rest between the captive flat washer on each mounting bolt and the rear of the AP-85.

26 | AP-85 Series Installation Aruba AP-85 Outdoor Access Point Series | Installation Guide

NOTE

arun_0135A

Outdoor-Rated Straps

Mounting Plate

Mounting Bolts

AP-85

M8 Positioning Bolts (4x, 2x per side)

The mounting plate can be secured to a horizontal or vertical pole. The position of the keyholes on the mounting plate allows you to mount the AP-85 on either pole type with the antenna jacks at the top or the side. To mount the AP-85 with the antenna jacks at the side, rotate the unit 90 degrees before seating the unit on the mounting plate.

Figure 17 Pole Mounting the AP-85 (Diameter Greater than 3.5 Inches)

Positioning the AP-85

To adjust the angle of an AP-85 on a vertical pole:

1. Loosen the four M8 bolts on the side of the mounting plate. Rotate the AP to the desired angle and tighten down the M8 bolts (see Figure 18).

Figure 18 Positioning the AP-85 on a Vertical Pole

To adjust the angle of an AP-85 on a horizontal pole:

1. Rotate the entire mounting bracket to the desired angle and tighten the bracket into place (see Figure 19).

Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Installation | 27

Figure 19 Positioning the AP-85 on a Horizontal Pole

NOTE

arun_0131D

Connecting Required Cables

Before connecting other cables, first connect the ground stud to ground reference. See Figure 20 for the location of the ground stud.

RJ-45 CAT 5 Cable

To weatherproof and connect an RJ-45 terminated CAT 5E or better cable to an AP-85 (see Figure 20), perform the following using the contents in the included kit that ships with your unit:

The cable is not included and must be purchased separately. Purchase a suitable UV-resistant, outdoor rated, CAT 5E or better RJ-45 cable for use with the AP-85.

1. Slide the cap over the terminated cable.

2. Slide the rubber grommet over the terminated cable.

3. Slide the connector shell over the terminated cable.

4. Slide the washer over the terminated cable.

5. Insert the rubber grommet into the top of the connector shell until the top surface of the grommet is flush with the top edge of the connector shell.

6. Connect the terminated cable to the proper port: LAN/POE port on the AP-85TX model or the CONSOLE port on the AP85FX/LX models.

7. Screw the connector shell onto the interface on the AP-85.

8. Screw the cap onto the connector shell.

28 | AP-85 Series Installation Aruba AP-85 Outdoor Access Point Series | Installation Guide

arun_0127

Cap

Rubber Grommet

Connector Shell

Washer

Terminated CAT 5E or Better Cable

Ground Stud

Figure 20 Weatherproofing and Connecting an RJ-45 Terminated CAT 5 Cable

Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Installation | 29

WARNING

NOTE

DC Power Cable

AC Power Cable

DC and AC Power Cables

To connect the power cables (wiring harnesses):

1. Screw the two-wire, 8-foot long DC power cable (wiring harness) to the DC interface on the AP-85TX, AP-85FX, or AP85LX model.

2. Screw the three-wire, 8-foot long AC power cable (wiring harness) to the AC interface on the AP-85FX or AP-85LX models only.

Disconnect the AC mains before handling the AC power cable and connecting it to the AP-85.

All connections made to the unit should conform to all local and national electrical codes. Power cords with lengths longer than 15 ft and cords without plugs should only be installed in appropriate areas. Check the codes for your area to ensure proper use.

Figure 21 Connecting Power

Table 5 AC and DC Power Cable Descriptions

Cable Type Wire Color Assignment

DC Power Cable Red +12V

30 | AP-85 Series Installation Aruba AP-85 Outdoor Access Point Series | Installation Guide

Always shut power off to the unit to de-energize it before disconnecting any cables.

Black Ground

NOTE

CAUTION

CLASS 1

LASER PRODUCT

Table 5 AC and DC Power Cable Descriptions

Cable Type Wire Color Assignment

AC Power Cable: United States (US) Black Line

White Neutral

Green Ground

AC Power Cable: Europe (EU) Brown Line

Blue Neutral

Green/Yellow Ground

Fiber Optic Cable

To use the fiber optic termination kit that is shipped with the AP-85FX/LX models, follow the instructions in the included Tyco document Instruction Sheet 408-10079.

Fiber optic cables are not included and must be purchased separately. Purchase a suitable UVresistant, outdoor rated, multi-mode fiber optic cable for use with the AP-85FX and a single-mode fiber optic cable for use with the AP-85LX.

Aruba provides a multi-language document containing country specific restrictions and additional safety and regulatory information for all Aruba hardware products. This document can be viewed or downloaded from the following location:

www.arubanetworks.com/safety_addendum.

Use of controls or adjustments of performance or procedures other than those specified in this manual may result in hazardous radiation exposure.

This product complies with 21 CFR Chapter 1, Subchapter J, Part 1040.10, and IEC 60825-1: 1993, A1: 1997, A2: 2001, IEC 60825-2: 2000.

For continued compliance with the above laser safety standards, only approved Class 1 modules from our approved vendors should be installed in Aruba products.

Lightning Arrestor Installation

Refer to the instructions that are shipped with the Aruba lightning arrestor (AP-LAR-1).

Antenna Installation

Refer to the instructions that are shipped with your Aruba outdoor rated antenna.

Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Installation | 31

Verifying Post-Installation Connectivity

The LEDs on the AP-85 can be used after installation to verify that the AP is receiving power, that the AP is initializing successfully, and that wireless connectivity is occurring (see "LED Status Indicators" on page13). Refer to the ArubaOS Quick Start Guide for further details on verifying post-installation network connectivity.

Configuring the AP-85

Configuration parameters are network or controller specific and are configured and stored on the Mobility Controller. Network configuration settings are pushed out to the AP(s) but remain stored on the Mobility Controller. Configuration settings can be configured via the ArubaOS Web UI, ArubaOS CLI, or Aruba MMS. Refer to their respective guides for further details: the ArubaOS User Guide or Aruba Mobility Management System User Guide.

32 | AP-85 Series Installation Aruba AP-85 Outdoor Access Point Series | Installation Guide

Appendix A

Antenna Location Area of Coverage Direction of Coverage

Understanding Antennas

Aruba Antennas

Before you can select the antenna type needed for the deployment, read the basic wireless antenna information provided in this section. This information will help you understand wireless antenna basics and Aruba antenna specifications.

Understanding Wireless Antennas

Omni-Directional vs. Directional Coverage

For optimal performance of your wireless network, it is essential to understand the purpose behind proper antenna selection. Choosing the correct antenna type will ensure that RF energy is being directed to the correct coverage areas. Omni-directional antennas provide equal coverage in all directions (see Figure 22), while directional antennas point RF energy in a specific direction for RF concentration within a targeted area (see Figure 23).

Figure 22 Omni-Directional Antenna

Figure 23 Directional Antenna

Aruba AP-85 Outdoor Access Point Series | Installation Guide Understanding Antennas | 33

Antenna Beamwidth, Pattern, and Gain Considerations

Equal Signal Strength Radiated over a Sphere

Antenna gain is a relative measure of how the antenna compares to an ideal isotropic radiator. An ideal, isotropic radiator would radiate power in all directions equally over a sphere. The relationship between gain, power, and propagation distance is detailed already in textbooks and Wiki's, so these expressions are not repeated here. Antenna gain is often confused with power gain in amplifiers, but it is important to note that antenna gain only makes a transmitter's power appear to be higher than would be predicted by calculation of the power fed to the antenna and then spread equally over a sphere. Antenna gain itself is a completely passive and bi-directional property, determined only by the shape and construction of the antenna.

Knowing that gain is only a comparison of the apparent power to the power that would be required if fed to an ideal isotropic antenna, you realize that gain can only be created by distorting the antenna pattern from the ideal spherical pattern. Think of this as focusing the same power that would normally distribute evenly over a sphere into a tighter region of space. Thus, the higher the gain, the more concentrated (in some way) the antenna pattern must be in order to achieve that gain.

Example

To visualize the concept of gain, picture a rubber ball. The surface area of the ball represents the total available power radiated by an ideal isotropic antenna over its sphere of radiation (see Figure 24).

Figure 24 Equal Signal Strength Radiated in All Directions

34 | Understanding Antennas Aruba AP-85 Outdoor Access Point Series | Installation Guide

Now, still using the same ball with the same available surface area, how would you be able to stretch the ball farther out?

NOTE

High Gain Omni-Directional Antenna

Compressed vertical signal, which expands signal horizontally

High Gain Directional Antenna

Entire sphere compressed into a single predominate direction, focusing RF energy to a targeted area of coverage

One way is to press down on the top of the ball and squash it down vertically. This would keep the same basic shape in the horizontal plane (round), but it would force the ball to stretch, creating a pancake shape, in the vertical direction (see Figure

25). This represents the concept of the high gain omni-directional antenna, which achieves a greater coverage distance in the

horizontal direction at the expense of coverage in the vertical areas of the radiating sphere.

Figure 25 High Gain Omni-Directional Antenna

To stretch the ball primarily in one direction (instead of in all directions), push the ball, both vertically and horizontally, on the sides and on the back, to force the ball to deform in a single direction. This action would significantly distort the shape of the original ball both horizontally and vertically, but it will allow you to stretch the same ball a lot farther in one direction (see Figure 26). This represents the concept of the high gain directional antenna, which is designed to compress the entire radiating sphere into a single predominate direction.

Gain is created by forcing transmitted power to radiate in a preferred direction rather than radiating in all directions of an ideal sphere. Therefore, a high gain signal is always accompanied by loss of available signal in some other portion of the ideal sphere. High gain directional antennas are ideal for sites requiring directed coverage in a specific area or extended range for bridging applications, but they are not suited for sites requiring uniform coverage in large areas. It is important to keep in mind that both vertical and horizontal coverage can be affected by the use of a higher gain antenna and beamwidth (a measure of coverage) is always inversely related to gain.

Figure 26 High Gain Directional Antenna

Aruba AP-85 Outdoor Access Point Series | Installation Guide Understanding Antennas | 35

Understanding Antenna Pattern Plots and Specifications

Azimuth, H-plane, or Horizontal Pattern Diagram

Elevation, E-plane, or Vertical Pattern Diagram

Traditional 2-D pattern plots and beamwidth specifications are like mental puzzles waiting to be solved because they only provide a snapshot of the information in two planes. These two planes are often referred to as the azimuth (H-plane or horizontal) and elevation (vertical or E-plane) planes. The azimuth view would be considered the view from directly above, viewing the antenna pattern on the horizontal plane. The elevation view is considered to be a side view, viewing the antenna pattern on the vertical plane. It is helpful to think of these planes as “cuts” of the real antenna pattern, which is actually 3-D.

Figure 27 illustrates where these “cuts” are located for a typical omni-directional antenna pattern.

Figure 27 Antenna Pattern Conventions (Omni-Directional Pattern Shown)

The antenna illustrated by Figure 27 is commonly referred to as the dipole pattern because it is the pattern produced by an ideal dipole antenna. The gain of this antenna is 2.14, which is achieved by compression in the vertical plane (elevation) compared to the ideal sphere. If referring to the true 3D pattern, this compression is sometimes called the donut shape (see

Figure 28).

Figure 28 Donut Shape Compression of an Omni-Directional Antenna

36 | Understanding Antennas Aruba AP-85 Outdoor Access Point Series | Installation Guide

It is evident from Figure 27 that 2-D pattern plots typically provided in antenna specifications are a simplification of the real

NOTE

3-D situation. Often, 2-D plots are reduced even further to a set of simple specifications based on the antenna gain and 3 dB beamwidth.

Detachable Antenna Selection

Select the correct antenna type to support the required frequency band (2.4 GHz or 5 GHz) and desired coverage pattern.

To select the correct antenna type for the deployment, download and read Aruba’s outdoor antenna specifications:

www.arubanetworks.com/products/access-points/antennas.php

All figures are shown with a 100 meter (328 feet) mounting height above the ground and for a 18 Mbps coverage area.

http://

Detachable Outdoor Antenna Types

These are some of the terms used to describe Aruba’s detachable antenna offerings. Terminology and degree of sector in Aruba’s antenna specifications are determined by the horizontal 3 dB beamwidth.

z Down-Tilt: An omni-directional antenna that focuses its energy downwards.

z Sector/Patch: A directional antenna that provides a focused sector of coverage from a central point (Example: +/- 45

degrees from a 90 degree center point).

z Panel: A flat formed antenna that directs energy to a sector of coverage. This type of antenna is often ideal for point-to-

point WDS bridging or wireless mesh backhaul applications.

Detachable Antenna Selection Tips

z If omni-directional coverage is desired with the greatest possible horizontal range from the AP, select one of Aruba's

detachable antennas with high-gain, omni-directional coverage. Due to the tight vertical beamwidth of high-gain, omnidirectional antennas, this typically requires mounting the antenna not more than 5 meters (16.5 feet) above the expected client locations in elevation.

z If omni-directional coverage is desired, but only high mounting locations are available

(approx. 5 m (16.5 feet) to 10 m (33 feet), consider the use of lower gain (3 dBi to 5 dBi) omni-directional antennas and a denser AP deployment. The lower gain antenna will reduce the maximum horizontal range of the AP, but will provide better vertical coverage.

z For very high mounting locations (>10 m/33 feet) such as light poles or monopoles, consider the use of an omni-

directional antenna with electrical downtilt. A downtilt omni-directional antenna is an antennas that has a direction of maximum gain at approximately 45° down from horizontal.

Aruba AP-85 Outdoor Access Point Series | Installation Guide Understanding Antennas | 37

Figure 29 AP-ANT-90 E-Plane View (Side View)

Figure 30 AP-ANT-90 H-Plane View (Top View)

z Alternatively, for high mounting locations, high-gain sector antennas may be used with mechanical downtilt. This will

typically require the use of multiple access points per mounting location to provide omni-directional coverage.

z If a directional antenna is required to direct RF coverage, the detachable antenna must be capable of supporting all of the

frequency bands that require support (2.4 GHz and/or 5 GHz).

z Directional antennas are selected to focus RF energy more efficiently to a targeted area.

z Directional antennas are also useful in areas where the surrounding materials have high amounts of RF attenuation or

reflection and the RF signal needs to be guided in the direction of the least amount of attenuation or reflection. For

38 | Understanding Antennas Aruba AP-85 Outdoor Access Point Series | Installation Guide

example, when mounting antennas on the outside surfaces of a building to provide coverage to outdoor spaces in front of the building, a directional antenna can be used to direct the coverage away from the building.

High Mounting Omni-Directional Antenna Scenario (AP-ANT-80 vs. AP-ANT-90)

The AP-ANT-80 shows greater horizontal range due to its higher gain (8 dBi vs. 3 dBi) antenna, but in this very high mounting situation, the AP-ANT-90 may be a better choice for ground level coverage because the direction of maximum gain is directed downward toward the ground. This situation could potentially be improved if a lower mounting elevation was available for the AP-ANT-80, ideally about 5 m above Ground.

Figure 31 AP-ANT-80 E-Plane View (Side View)

Figure 32 AP-ANT-80 H-Plane View (Top View)

Aruba AP-85 Outdoor Access Point Series | Installation Guide Understanding Antennas | 39

High Mounting Directional Antenna Scenario

The AP-ANT-82 is a high gain (12 dBi), directional antenna with a 90 degree 3 dB beamwidth in azimuth. For this high mounting condition, this antenna provides a long range in the direction of maximum gain, but it would require mechanical downtilt for ground level coverage.

Figure 33 AP-ANT-82 E-Plane View (Side View)

Figure 34 AP-ANT-82 with 30 Degree Downtilt E-Plane View (Side View)

40 | Understanding Antennas Aruba AP-85 Outdoor Access Point Series | Installation Guide

Figure 35 AP-ANT-82 H-Plane View (Top View)

Figure 36 AP-ANT-82 with 30 Degree Downtilt H-Plane View (Top View)

Aruba AP-85 Outdoor Access Point Series | Installation Guide Understanding Antennas | 41

42 | Understanding Antennas Aruba AP-85 Outdoor Access Point Series | Installation Guide

Appendix B

Product Specifications

Mechanical (AP-85TX, AP-85FX, and AP-85LX)

z Device Dimensions (HxWxD):

 10.80” x 12.64” x 3.07”

 274 mm x 321 mm x 78 mm

z Device Weight: 7.40 lbs/3.36 kgs

z Device Weight with Mounting Plate: 9.65 lbs/4.38 kgs

z Device Weight with Mounting Plate and Mounting Bracket: 10.85 lbs/4.92 kgs

z IP68 (1 m depth for 8 hrs) under IEC 60529 NEMA type 4X

z Temperature:

 Operating: -30ºC to 55ºC (-22ºF to 131ºF)

 Storage: -40ºC to 70ºC (-40ºF to 158ºF)

z Relative Humidity: 0% to 95% non-condensing

z Altitude: 0-3000 m (0-9850 ft)

z Survival Wind Speed: 125 mph (201 km/hr)

z Mounting:

 Articulating adjustable pole or mast mount kit (included)

 Antenna mount bracket (optional)

z Antenna: Quad, N-type Female interfaces for external antenna support

z Ground: Electrical safety/ground terminal point

z Visual Status Indicators (LEDs):

 Onboard LED array for RSSI level reading

 PWR - Power/Status

 LINK/ACT - LAN/Network Link Status

 RADIO 0 - Radio 0 Status

 RADIO 1 - Radio 1 Status

 RSSI (Radio 0) - RSSI Level for Radio 0

 RSSI (Radio 1) - RSSI Level for Radio 1

Electrical

AP-85TX

z 1 x 10/100 Base-T auto-sensing Ethernet (RJ-45) Interface

 IEEE 802.3 BaseT and 802.3u 100BaseTX compliant

 PoE 48V DC Power over Ethernet (IEEE 802.3af compliant)

 Serial over Ethernet (SoE)

Aruba AP-85 Outdoor Access Point Series | Installation Guide Product Specifications | 43

 Auto-sensing MDI/MDX

z 1 x 12 V DC / up to 2.0 A power interface (for external solar supplied DC power)

z 1 x Electrical Ground / Safety Terminal

z Fully environmentally hardened connector types (all interfaces)

AP-85FX

z 1 x 100BASE-FX data uplink port for multi-mode, dual-fiber connectivity

 1310 nm wavelength, 2 km over MMF Interface

 LC fiber optic connector type

z 1 x 12 V DC up to 2.0 A power interface (for external solar supplied DC power)

z 1 x 90-228 V~ / 500 mA auto-sensing power interface with transient power surge suppression

z 1 x Serial Console Port

z 1 x Electrical Ground / Safety Terminal

z Fully environmentally hardened connector types (all interfaces)

AP-85LX

z 1 x 100BASE-LX data uplink port for single-mode, dual-fiber connectivity

 1310 nm wavelength, 10km over SMF

 LC fiber optic connector type

z 1 x 12 V DC up to 2.0 A power interface (for external solar supplied DC power)

z 1 x 90-228 V~ / 500 mA auto-sensing power interface with transient power surge suppression

z 1 x Serial Console Port

z 1 x Electrical Ground / Safety Terminal

z Fully environmentally hardened connector types (all interfaces)

Maximum Power Draw

Table 6 AP-85 Series Maximum Power Draw

AP Model Power Source

Measurement Condition

AP-85TX PoE 48 V 0.25 12

AP-85TX, AP-85FX, AP-85LX DC 12 V 0.8 9.6

AP-85FX, AP-85LX AC 240 V, 60 Hz 0.18 (RMS) 20.14

z The 12 V DC input power source should be SELV (non-shock hazardous (<30 V DC) under normal and single fault

Max Current (Amps)

Max Power (Watts)

conditions) and limited power source (LPS) as a non-fire-hazardous circuit as defined in IEC 60950-1, or a Class Z power source as defined by the NEC.

z IT power system: Models AP-85FX and AP-85LX are designed for connection to TN or IT power distribution systems.

Wireless LAN

z Network Standards - IEEE 802.11b, IEEE 802.11g and IEEE 802.11a

z Antenna Type - None. Detachable, outdoor rated, 2.4 or 5 GHz antenna options available

z Radio Technology:

 802.11a/g - Orthogonal Frequency Division Multiplexing (OFDM)

44 | Product Specifications Aruba AP-85 Outdoor Access Point Series | Installation Guide

 802.11b - Direct Sequence Spread Spectrum (DSSS)

CAUTION

WARNING

z Radio Modulation Type:

 802.11a - BPSK, QPSK,16-QAM, 64-QAM

 802.11b - DQPSK/CCK, DQPSK, DBPSK

 802.11g - OFDM, DQPSK/CCK, DQPSK, DBPSK

z Media Access Control - CSMA/CA with ACK

z Data Rates:

 802.11a - 6, 9, 12, 18, 24, 36, 48 and 54 Mbps per channel

 802.11b - 1, 2, 5.5, 11 Mbps per channel

 802.11g - 1, 2, 5.5, 6, 9, 11, 12, 22, 24, 33, 36 and 54 Mbps per channel

z Transmit and Available Channels: Determined by country of use and Aruba certifications within country of use

Safety and Regulatory Compliance

www.arubanetworks.com/safety_addendum.

Aruba Access Points and the AP-LAR-1 lightning arrestor are required to be installed by a professional installer. The professional installer is responsible for ensuring that grounding is available and it meets applicable local and national electrical codes.

Do not work on an AP and do not connect or disconnect cables during periods of lightning activity.

Declaration of Conformity

Aruba Networks, Inc., 1322 Crossman Avenue, Sunnyvale, CA 94089, USA, declares that the Aruba Wireless Access Point, Model: AP-85 conforms to the following European directives:

z R&TTE Directive 99/5/EC

z WEEE Directive 2002/96/EC

z RoHS Directive 2002/95/EC

z ATEX Directive 94/9/EC

R&TTE Directive relevant standards:

z Article 3.2; EN 300 328v1.7.1 and, EN 301 893 v1.4.1

z Article 3.1b; EN 301 489-17 v1.2.1

z Article 3.1a; EN 60950-1, EN60950-22

ATEX Directive standard:

z EN60079-0:2004, EN60079-15:2005

Year Mark first applied: 2008

I, the undersigned, hereby declare that the equipment specified above conforms to the above Directives and Standards.

Aruba AP-85 Outdoor Access Point Series | Installation Guide Product Specifications | 45

European Headquarters

ARU-AP85TX

N19592

FCC ID: Q9DAP85 IC: 4675A-AP85

MODEL: AP-85TX

1344 Crossman Ave. Sunnyvale, CA 95014, U.S.A.

ARUBA NETWORKS, INC.

12V ; 2A or 48V ; 350mA

Manufactured: 2008

IP67 TYPE 4X

WARNING – DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE MAY BE PRESENT.

WARNING – POTENTIAL ELECTROSTATIC CHARGING HAZARD – SEE INSTRUCTIONS FOR ANTENNA DETAILS.

WARNING – DO NOT ENERGIZE OR DE-ENERGIZE UNIT AT THE UNIT’S POWER CONNECTORS WHEN AN EXPLOSIVE ATMOSPHERE MAY BE PRESENT.

II 3 G Ex nA T6

-30°C < Tamb < 55°C TUVNA 08 ATEX 7155 X

1344 Crossman Ave. Sunnyvale, CA 94089, U.S.A.

ARUBA NETWORKS, INC.

MODEL: AP-85TX

77 Oxford Street London, W1D 2ES United Kingdom Phone: +44 20 7659 2024 Fax: +44 20 7043 5871

Contact: Albert Benhamou info-emea@arubanetworks.com

Instructions for Use in a Potentially Explosive Atmosphere

Type of Protection: II 3 G Ex nA T6 ; ignition protection category “n”

Enclosure: NEMA Type 4X, IP67

Applicable Standards: IEC 60079-0:2004

EN 60079-0:2004 IEC 60079-15:2005 EN 60079-15:2005

46 | Product Specifications Aruba AP-85 Outdoor Access Point Series | Installation Guide

WARNING

Do not open the unit when an explosive atmosphere may be present.

WARNING

CAUTION

Do not energize or de-energize the unit at the unit’s power connectors when an explosive atmosphere may be present.

Potential Electrostatic Charging Hazard.

The antennas installed with the Model AP-85TX should be mounted in a location where they are not subjected to winds, in order to minimize the build up a charge and potential arcing on the antennas.

During all servicing and maintenance activities, the antennas must be handled with extreme caution to minimize possible electrostatic static discharge (ESD) and arcing events. Any cleaning means, in particular, should minimize such events on the plastic surfaces of the antennas, which may contain or produce a charge potential.

Only the Model AP-85TX itself is intended to be used in a potentially explosive environment. The external power adapter, PoE power injector, and power sourcing equipment (PSE, that is, controllers) are intended to be installed only in a safe environment and are not intended for installation in a potentially explosive environment.

The Model AP-85TX is intended to be powered only by the external power adapter or power injector provided with the unit, or by power sourcing equipment (PSE) that is compliant with IEEE802.3af. The product must be powered only by energy-limited circuits, which satisfy the requirements of EN 60079-15. The explosion group is dependent upon the use of an energy-limited supply circuit.

Proper Disposal of Aruba Equipment

For the most current information on Global Environmental Compliance and Aruba products please see our website at

www.arubanetworks.com.

Waste of Electrical and Electronic Equipment

Aruba products at end of life are subject to separate collection and treatment in the EU Member States, Norway, and Switzerland and therefore are marked with the symbol shown at the left (crossed-out wheelie bin). The treatment applied at end of life of these products in these countries shall comply with the applicable national laws of countries implementing Directive 2002/96EC on Waste of Electrical and Electronic Equipment (WEEE).

Aruba AP-85 Outdoor Access Point Series | Installation Guide Product Specifications | 47

European Union RoHS

Aruba products comply with the EU Restriction of Hazardous Substances Directive 2002/95/EC (RoHS). EU RoHS restricts the use of specific hazardous materials in the manufacture of electrical

and electronic equipment. Specifically, restricted materials under the RoHS Directive are Lead (including Solder used in printed circuit assemblies), Cadmium, Mercury, Hexavalent Chromium, and Bromine. Some Aruba products are subject to the exemptions listed in RoHS Directive Annex 7 (Lead in solder used in printed circuit assemblies). Products and packaging will be marked with the “RoHS” label shown at the left indicating conformance to this Directive.

China RoHS

Aruba products comply with China environmental declaration requirements and are labeled with the “EFUP e” label shown at the left.

48 | Product Specifications Aruba AP-85 Outdoor Access Point Series | Installation Guide

Index

AC power................................................................... 12

AC power cable......................................................... 30

access point setup ....................................................21

accessories ............................................................... 14

antenna...................................................................... 33

beamwidth .......................................................... 34

detachable selection........................................... 37

directional ........................................................... 33

gain .....................................................................34

height .................................................................. 17

installation........................................................... 31

interfaces ............................................................ 10

omni-directional .................................................. 33

orientation ........................................................... 18

pattern................................................................. 34

pattern plots........................................................ 36

position ............................................................... 18

specifications ...................................................... 36

understanding of.................................................33

wireless ............................................................... 33

AP-85 Series

about..................................................................... 7

antenna interfaces .............................................. 10

bottom view

AP-85 TX model ........................................... 10

cable connection ................................................ 28

configuration ....................................................... 32

front view .............................................................. 9

installation........................................................... 22

LEDs....................................................................13

overview................................................................ 9

package checklist ................................................. 8

power cable connection ..................................... 30

rear view................................................................ 9

RJ-45 cable connection...................................... 28

software requirements .......................................... 8

specifications ...................................................... 43

top view .............................................................. 10

AP-85FX

100Base-FX ........................................................11

console port ........................................................ 11

multi-mode fiber.................................................. 11

AP-85LX

100Base-LX ........................................................ 11

console port ........................................................ 11

single-mode fiber ................................................11

AP-85TX

10/100Base-T ports............................................ 10

interfaces ............................................................ 10

LAN..................................................................... 10

PoE ..................................................................... 10

SPoE................................................................... 10

beamwidth ................................................................ 34

cables........................................................................ 28

cabling........................................................... 19, 28, 30

configuration ............................................................. 32

connecting cables ............................................... 28, 30

connectivity ......................................................... 22, 32

console port .............................................................. 11

customer support........................................................ 6

DC power ............................................................ 10, 11

DC power cable ........................................................ 30

deployment ............................................................... 15

detachable antennas................................................. 37

directional antenna.................................................... 33

environment .............................................................. 19

ethernet cabling ........................................................ 19

fiber interface ............................................................ 11

gain ........................................................................... 34

grounding .................................................................. 19

grounding point................................................... 11, 12

Aruba AP-85 Outdoor Access Point Series | Installation Guide | 49

installation ..................................................... 21, 22, 23

configuration ....................................................... 32

pole mounting (>3.5" Diameter) .......................... 26

pole mounting (1.5" to 3.5" Diameter) ................24

positioning .......................................................... 27

post-installation connectivity .............................. 32

preparation.......................................................... 23

wall mounting...................................................... 23

LC connector............................................................. 11

LEDs .......................................................................... 13

lightning arrestor ................................................. 10, 31

line of sight ................................................................ 16

mounting ................................................................... 23

multi-mode fiber interface ......................................... 11

power over ethernet .................................................. 10

pre-installation .......................................................... 23

checklist.............................................................. 21

connectivity ........................................................ 22

network setup ..................................................... 21

provisioning ........................................................ 22

provisioning............................................................... 22

radio interference ...................................................... 19

radio path planning ................................................... 16

regulatory compliance............................................... 45

RF absorbers............................................................. 15

RF interference sources ............................................ 16

RF reflectors.............................................................. 15

RJ-45 cable............................................................... 28

RSSI LEDs................................................................. 13

RSSI levels ................................................................ 14

network setup............................................................ 21

N-type antenna interfaces ......................................... 10

omni-directional antenna...........................................33

operation

modes of ............................................................... 7

outdoor conditions .................................................... 19

outdoor deployment .................................................. 15

outdoor planning ....................................................... 15

overview ...................................................................... 9

package checklist........................................................8

planning..................................................................... 15

PoE ............................................................................ 10

pole mounting (1.5" to 3.5" Diameter).......................24

pole moutning (>3.5" Diameter) ................................ 26

positioning................................................................. 27

safety......................................................................... 45

scale requirements.................................................... 15

serial console port..................................................... 11

serial power over ethernet ........................................ 10

single-mode fiber interface ....................................... 11

software requirements ................................................ 8

specifications ............................................................ 43

SPoE ......................................................................... 10

status indicators........................................................ 13

support, customer....................................................... 6

wall mounting ............................................................ 23

weather ..................................................................... 19

wireless antenna ....................................................... 33

post-installation......................................................... 32

power

AC ....................................................................... 12

DC ................................................................. 10, 11

power cables ............................................................. 30

50 | Aruba AP-85 Outdoor Access Point Series | Installation Guide

Hewlett Packard Enterprise AP85FXLX Users manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Preface

Guide Overview

Related Documents

Contacting Aruba Networks

AP-85 Series Hardware Overview

About the AP-85 Series

AP-85 Series Operation

Minimum Software Requirements

Package Checklist

Hardware Model Overview

AP-85 Series Front View

AP-85 Series Rear View

AP-85 Series Top View

AP-85TX Bottom View

AP-85FX/LX Bottom View

LED Status Indicators

Optional Accessories

Outdoor Planning and Deployment Considerations

Planning and Deployment Considerations

Scale Requirements

Identifying Known RF Absorbers/Reflectors/Interferences Sources

RF Absorbers

RF Reflectors

RF Interference Sources

Line of Sight (Radio Path Planning)

Antenna Height

Antenna Position and Orientation

Radio Interference

Weather Conditions

Ethernet Cabling

Grounding

AP-85 Series Installation

Pre-Installation Network Setup

Pre-Installation Checklist

Access Point Setup

Verifying Pre-Installation Connectivity

Provisioning the AP

Installing the AP-85

Mounting the AP-85

Positioning the AP-85

Connecting Required Cables

Lightning Arrestor Installation

Antenna Installation

Verifying Post-Installation Connectivity

Configuring the AP-85

Understanding Antennas

Aruba Antennas

Understanding Wireless Antennas

Omni-Directional vs. Directional Coverage

Antenna Beamwidth, Pattern, and Gain Considerations

Understanding Antenna Pattern Plots and Specifications

Detachable Antenna Selection

Detachable Outdoor Antenna Types

Detachable Antenna Selection Tips

Product Specifications

Mechanical (AP-85TX, AP-85FX, and AP-85LX)

Electrical

AP-85TX

AP-85FX

AP-85LX

Maximum Power Draw

Wireless LAN

Safety and Regulatory Compliance

Declaration of Conformity

European Headquarters

Instructions for Use in a Potentially Explosive Atmosphere

Proper Disposal of Aruba Equipment

Waste of Electrical and Electronic Equipment

European Union RoHS

China RoHS

Index