Hewlett Packard Enterprise AP85 AP-85 Dual-Radio Wireless Access Point User Manual AP 85IG 0510323 02
Aruba Networks, Inc. AP-85 Dual-Radio Wireless Access Point AP 85IG 0510323 02
Contents
- 1. Installation Guide Part 1
- 2. Installation Guide Part 2
- 3. Installation Guide Part 3
Installation Guide Part 2
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| Document ID | 848502 |
| Application ID | ewRgWOd3o3LojwXZ7Piang== |
| Document Description | Installation Guide Part 2 |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 218.11kB (2726421 bits) |
| Date Submitted | 2007-09-27 00:00:00 |
| Date Available | 2007-09-27 00:00:00 |
| Creation Date | 2007-09-25 15:42:50 |
| Producing Software | Acrobat Distiller 8.1.0 (Windows) |
| Document Lastmod | 2007-09-27 15:36:19 |
| Document Title | AP-85IG_0510323-02.book |
| Document Creator | FrameMaker 7.2 |
| Document Author: | dalonzo |
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 of the mounting bolts and the rear of the AP-85. The positioning of the keyholes on the mounting plate supports horizontal or vertical mounting of the AP-85, which is achieved by rotating the device by 90 degrees and securing it to the mounting plate. NOTE Figure 12 Wall Mounting the AP-85 Mounting Plate AP-85 Mounting Bolts Wall Pole Mounting the AP-85 (1.5” to 3.5” Diameter) To mount an AP-85 to a pole with a diameter of 1.5” to 3.5”: 1. Slide the long T-bolt through the opening in the mounting bracket (see Figure 13). 2. Attach the included retaining clip to the T-bolt (see Figure 13). 3. Screw the included nut onto the end of the T-bolt (see Figure 13). 4. Secure the mounting plate to the mounting bracket using the four included phillips head screws (see Figure 13). Figure 13 Assembling the Pole Mounting Bracket Mounting Plate Mounting Bracket T-Bolt (1x) Phillips Head Screws (4x) Retaining Clip Nut (1x) arun 0137 24 | AP-85 Series Installation Aruba AP-85 Outdoor Access Point Series | Installation Guide 5. Wrap the pole mounting bracket around a 1.5” to 3.5” 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. Ensure 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 Securing the Pole Mounting Bracket Step A arun_0129 Step B Step C arun_0130 6. 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 15). The mounting plate should rest between the captive flat washer on each of the mounting bolts and the rear of the AP-85. NOTE The pole mounting bracket can be secured to a horizontal or vertical pole. The positioning of the keyholes on the bracket supports horizontal or vertical mounting of the AP-85 on either pole type, which is achieved by rotating the device by 90 degrees and securing it to the bracket. Refer to Figure 15 and Figure 16 for details. Figure 15 Vertical Pole Mount Position (1.5” to 3.5” Diameter) Tightened Mounting Bolts AP-85 Pole Secured Mounting Bracket Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Installation | 25 Figure 16 Horizontal Pole Mount Position (1.5” to 3.5” Diameter) AP-85 Horizontal Pole Secured Mounting Bracket Tightened Mounting Bolts arun_0131C Pole Mounting the AP-85 (>3.5” Diameter) To mount an AP-85 to a pole with a diameter greater than 3.5”: 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 of the mounting bolts and the rear of the AP-85. The mounting plate can be secured to a horizontal or vertical pole. The positioning of the keyholes on the mounting plate supports horizontal or vertical mounting of the AP-85 on either pole type, which is achieved by rotating the device by 90 degrees and securing it to the mounting plate. NOTE Figure 17 Pole Mounting the AP-85 (>3.5” Diameter) AP-85 Pole Mounting Bolts Mounting Plate 26 | AP-85 Series Installation Outdoor Rated Straps Aruba AP-85 Outdoor Access Point Series | Installation Guide 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 and 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 M8 Positioning Bolts (4x, 2x per side) 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). Figure 19 Positioning the AP-85 on a Horizontal Pole arun_0131D arun_0131E Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Installation | 27 Connecting Required Cables 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. NOTE 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 AP-85FX/LX models. 7. Screw the connector shell onto the interface on the AP-85. 8. Screw the cap onto the connector shell. Figure 20 Weatherproofing and Connecting an RJ-45 Terminated CAT 5 Cable Cap Rubber Grommet Connector Shell Washer Terminated CAT 5E or Better Cable arun_0127 28 | AP-85 Series Installation Aruba AP-85 Outdoor Access Point Series | Installation Guide 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 AP85TX, AP-85FX, or AP-85LX model. 2. Screw the three-wire, 8-foot long AC power cable (wiring harness) to the AC interface on the AP85FX or AP-85LX models only. Disconnect the AC mains before handling the AC power cable and connecting it to the AP-85. WARNING Figure 21 Connecting Power DC Power Cable AC Power Cable arun_0128B Table 5 AC and DC Power Cable Descriptions Cable Type Wire Color Assignment DC Power Cable Red +12V Black Ground Black Line White Neutral Green Ground Brown Line Blue Neutral Green/Yellow Ground AC Power Cable: United States (US) AC Power Cable: Europe (EU) Aruba AP-85 Outdoor Access Point Series | Installation Guide AP-85 Series Installation | 29 Fiber Optic Cable To utilize the fiber optic termination kit that ships with the AP-85FX/LX models: 1. 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 UV resistant, 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. NOTE Lightning Arrestor Installation Refer to the instructions that ship with the Aruba lightning arrestor (AP-LAR-1). Antenna Installation Refer to the instructions that ship with your Aruba outdoor rated antenna. 4. Verifying Post-Installation Connectivity The integrated LEDs on the AP-85 can be used after installation to verify that the AP is receiving power, is initializing successfully, and that wireless connectivity is occurring (see LED Status Indicators on page 12). Refer to the ArubaOS Quick Start Guide for further details on verifying post-installation network connectivity. 5. Configuring the AP-85 AP Configuration 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. 30 | AP-85 Series Installation Aruba AP-85 Outdoor Access Point Series | Installation Guide Appendix A 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 Antenna Location Area of Coverage Direction of Coverage Figure 23 Directional Antenna Antenna Location Area of Coverage Direction of Coverage Aruba AP-85 Outdoor Access Point Series | Installation Guide Understanding Antennas | 31 Antenna Beamwidth, Pattern, and Gain Considerations 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 Equal Signal Strength Radiated over a Sphere 32 | 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? 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 High Gain Omni-Directional Antenna Compressed vertical signal, which expands signal horizontally 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. NOTE 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 High Gain Directional Antenna Entire sphere compressed into a single predominate direction, focusing RF energy to a targeted area of coverage Aruba AP-85 Outdoor Access Point Series | Installation Guide Understanding Antennas | 33 Understanding Antenna Pattern Plots and Specifications 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) Elevation, E-plane, or Vertical Pattern Diagram Azimuth, H-plane, or Horizontal Pattern Diagram 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 34 | Understanding Antennas Aruba AP-85 Outdoor Access Point Series | Installation Guide
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