Related Manuals for Enterasys Outdoor Antenna
Summary of Contents for Enterasys Outdoor Antenna
- Page 1 E N J O Y T H E F R E E D O M O F W I R E L E S S N E T W O R K I N G Outdoor Antenna Site Preparation and Installation Guide E N T E R A S Y S .
- Page 3 Enterasys Networks reserves the right to make changes in specifications and other information contained in this document and its web site without prior notice. The reader should in all cases consult Enterasys Networks to determine whether any such changes have been made.
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Page 4: Regulatory Information
Notice Regulatory Information Canada The products included with the RoamAbout Outdoor Kit for outdoor antenna installations comply with GL-36 of Industry and Science Canada. FCC Notice Note: The devices included with the outdoor kit have been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. - Page 5 • Enterasys Networks is not responsible for any radio or television interference caused by unauthorized modification of the devices included with the RoamAbout Outdoor Kit, or the substitution or attachment of connecting cables and equipment other than that specified by Enterasys Networks.
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Page 7: Table Of Contents
Preface Intended Audience ............vii Associated Documents . - Page 8 Connecting the Cables ..........3-16 Optimizing RoamAbout Outdoor Antenna Placement ......3-17 Routine Maintenance .
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Page 9: Preface
RoamAbout AP and Lightning Protector. This chapter also provides an overview of cabling and configuring the Access Point. Chapter 3 contains the information needed for an antenna installation professional to set up, install, and test the RoamAbout outdoor antennas and cables. Appendix A provides the outdoor antenna specifications. Preface... -
Page 10: Associated Documents
Associated Documents The documentation, drivers, and utilities can also be downloaded from the RoamAbout Wireless web site. Check the RoamAbout Wireless web site regularly for product upgrades. http://www.enterasys.com/wireless Component RoamAbout Access Point 2000 RoamAbout R2 Wireless Access Platform RoamAbout Access Point Manager RoamAbout 802.11 DS PC Card RoamAbout 802.11 Drivers RoamAbout Client Utility... -
Page 11: Getting Help
A description of the problem • A description of any action(s) already taken to resolve the problem • The serial and revision numbers of all involved Enterasys Networks products in the network • A description of your network environment (for example, layout, cable type) •... -
Page 12: Document Conventions
Document Conventions The following icons are used in this document: Icon Meaning ELECTRICAL HAZARD: Warns against an action that could result in personal injury or death. WARNING: Warns against an action that could result in WARNING personal injury or death. CAUTION: Contains information essential to avoid damage to the equipment. -
Page 13: Site Preparation
Wireless Access Platform, unless otherwise specified in this document. If after reviewing this document you require additional technical information or support prior to ordering product, contact your authorized Enterasys Networks Representative or see the RoamAbout web site: http://www.enterasys.com/wireless Chapter 1... -
Page 14: Choosing A Wireless Network Configuration
Choosing a Wireless Network Configuration Choosing a Wireless Network Configuration The antennas you need depend on the wireless network configuration: • LAN-to-LAN, Point-to-Point This is a wireless link between two APs that connects two separate wired LANs. Typically, two directional antennas are used. •... -
Page 15: Maximum Distances Between Antennas
Typically, the RoamAbout directional and omni-directional antennas are installed on rooftops. The directional antenna can also be installed to the side of a building. The vehicle-mount antenna is mounted to a vehicle and connected to the client with a 2.5 meter (8 foot) cable. -
Page 16: Roamabout Pc Card Variations
Determining the Antenna Locations Table 1-2: Distances and Line of Sight Clearance ETSI Data 14 dBi Yagi to 14 dBi Yagi Rate Mbit/s Distance Line of Sight Clearance 2.5 km 6.3 m (1.5 mi) (21 ft) 3.5 km 7.5 m (2.1 mi) (25 ft) 5 km... -
Page 17: Line Of Sight
Determining the Antenna Locations Line of Sight The shape of the radio beam, defined as the Fresnel Zone, is widest in the middle. The Fresnel Zone is shown as the gray area between the antennas in Figure 1-1. The exact shape and width of the Fresnel Zone is determined by the distance between the antenna and frequency of the radio signal. - Page 18 Determining the Antenna Locations Figure 1-2: Potential Obstacles to Line of Sight (not to scale) Building blocking line of sight Power lines blocking line of sight 100_02 Trees blocking line of sight...
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Page 19: Other Factors That Can Reduce Antenna Range
Determining the Antenna Locations Other Factors That Can Reduce Antenna Range Large reflecting surfaces that are parallel or partly perpendicular to the radio signal cause reflections of the radio signal (see Figure 1-3). Examples of reflecting surfaces are buildings with low-emissivity (low-e) glass, crowded parking lots, water, moist earth, moist vegetation, and above-ground power or telephone lines. -
Page 20: Other Requirements
• AP placement The AP should be located indoors and connected to the outdoor antenna with a standard 6 meter (20 foot), 15 meter (50 foot), or 22 meter (75 foot) low-loss cable. A longer cable could cause additional signal loss and decrease the distance between... -
Page 21: Antenna Options
Antenna Options The following sections describe the RoamAbout outdoor antennas. Appendix A contains the specifications for each antenna. RoamAbout 5 dBi Vehicle-Mount Antenna The RoamAbout vehicle-mount antenna GHz frequency band featuring an omni-directional pattern with a nominal gain of 5 dBi. The vehicle-mount antenna can be mounted on vehicles, such as fork-lift trucks, that need continuous access to network data whether inside or outside of the building. -
Page 22: Roamabout 14 Dbi Directional Antenna
NOTE: An optional 75-foot cable, part number CSIES-AA-C75 or NOTE CSIES-AB-C75, not included in the kit is also available. Contact your Enterasys Networks Representative for more information. 1-10 1-5, which shows an example of a RoamAbout Access Point 2000 ETSI*... - Page 23 Antenna Options Figure 1-5: Yagi Antenna Configuration Example (AP 2000) 1-11...
- Page 24 *European Telecommunications Standards Institute **128-bit encryption RoamAbout PC Card NOTE: An optional 75-foot cable, part number CSIES-AB-C75, not NOTE included in the kit is also available. Contact your Enterasys Networks Representative for more information. 1-12 Figure 1-6, which shows an example of a RoamAbout R2 cabling...
- Page 25 Antenna Options Figure 1-6: Yagi Antenna Configuration Example (RoamAbout R2) 1-13...
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Page 26: Roamabout 7 Dbi Omni-Directional Antenna
128-bit encryption RoamAbout PC Card NOTE: An optional 75-foot cable, part number CSIES-AA-C75 or NOTE CSIES-AB-C75, not included in the kit is also available. Contact your Enterasys Networks Representative for more information. 1-14 Figure 1-7, which shows an example of a... - Page 27 Antenna Options Figure 1-7: Omni-Directional Antenna Configuration Example (Access Point 2000) 1-15...
- Page 28 European Telecommunications Standards Institute **128-bit encryption RoamAbout PC Card NOTE: An optional 75-foot cable, part number CSIES-AB-C75, not NOTE included in the kit is also available. Contact your Enterasys Networks Representative for more information. 1-16 Figure 1-8, which shows an example of a...
- Page 29 Antenna Options Figure 1-8: Omni-Directional Antenna Configuration Example (RoamAbout R2) 1-17...
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Page 30: Contacting An Antenna Installation Company
Contacting an Antenna Installation Company Contacting an Antenna Installation Company Have an antenna installation professional install the outdoor antennas. The antenna installer provides the expertise to properly install, secure, and ground your antenna. The following describes tasks that the installer may need to perform. NOTE: The antenna installation professional should be licensed or certified NOTE in accordance with local regulations. - Page 31 Installation Requirements √ Determine the best location for the AP. √ Determine the length of cable required from the antenna to the AP. √ Ensure the location has an accessible Ethernet connection. √ Determine the distance between buildings. You may need to provide the following distances when contacting the antenna installation company: Distance between the antennas (building-to-building network):...
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Page 34: Overview Of Connecting Cables To The Access Point
Overview of Connecting Cables to the Access Point Overview of Connecting Cables to the Access Point Before cabling the Access Point 2000, you should install the Access Point to a wall or ceiling. For detailed hardware installation procedures, see the RoamAbout Access Point 2000 Hardware Installation Guide. - Page 35 Remove the plastic cap from the PC Card and connect the pigtail cable. After the Lightning Protector has been installed and grounded, connect the other end of the pigtail cable to the Lightning Protector. If using the remote power option, connect the Ethernet cable from the Access Point to the Access Point connector on the remote power adapter.
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Page 36: Overview Of Connecting Cables To The Roamabout R2
Overview of Connecting Cables to the RoamAbout R2 Overview of Connecting Cables to the RoamAbout R2 Before cabling the RoamAbout R2, you should install the RoamAbout R2 to a wall or ceiling. For detailed hardware installation procedures, see the RoamAbout R2 Wireless Access Platform Hardware Installation Guide. - Page 37 Remove the plastic cap from the PC Card(s) and connect the pigtail cable. After the Lightning Protector has been installed and grounded, connect the other end of the pigtail cable to the Lightning Protector. Connect the Ethernet cable from the RoamAbout R2 to the RoamAbout R2 connector on the power adapter.
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Page 38: Overview Of The Ap Configuration
Overview of the AP Configuration Overview of the AP Configuration The following provides an overview of configuring the AP with the RoamAbout AP Manager. For detailed procedures, see the RoamAbout 802.11 Wireless Networking Guide or click the Help button in the AP Manager. Before you begin, you need the following: •... - Page 39 Overview of the AP Configuration Figure 2-3: RoamAbout AP Manager...
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Page 41: Antenna Installation
Do not install the antenna in wet, windy, icy, or otherwise unsafe weather conditions. The RoamAbout outdoor antenna kits do NOT provide the following items, which may be necessary to install the antenna: •... -
Page 42: Installation Overview
Figure 3-2 (RoamAbout R2) to verify that the polarity of each connector is correct for your installation. The components supplied with your outdoor antenna kit are configured with either Standard-N connectors or Reverse Polarity-N connectors, subject to the country where the kit was purchased. - Page 43 Figure 3-1: Selecting the Correct N-Type Connector for the Access Point 2000 Pigtail Connection ETSI Countries: France, Spain, and Japan. Asia Pacific FCC and ETSI. 1 - PC Card connector 2 - Standard-N Male Standard-N Female on both ends Standard-N Male on both ends Standard-N Female The term Male or Female does not refer to the connector thread, but to its center pin.
- Page 44 Verify Component Connector Polarity Figure 3-2: Selecting the Correct N-Type Connector for the RoamAbout R2 Pigtail Connection 1 - PC Card connector 2 - Standard-N Male Standard-N Female on both ends Standard-N Male on both ends Standard-N Female The term Male or Female does not refer to the connector thread, but to its center pin. •...
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Page 45: Grounding System
Grounding System Direct earth grounding of the antenna and the Lightning Protector is necessary to protect the installation from lightning and the build-up of static electricity. CAUTION: The antenna mast, RoamAbout AP, and lightning protector must be connected to the same earth ground (with separate grounds), using an equipotential bonding conductor. -
Page 46: Lightning Protector Installation
Lightning Protector Installation Lightning Protector Installation Lightning protection is designed to protect people, property and equipment by providing a path to the ground whenever lightning strikes your antenna installation. The RoamAbout Lightning Protector is an indispensable part of such a grounding system to protect your electronic equipment from transients and/or electrostatic discharges at the antenna. - Page 47 To install the RoamAbout Lightning Protector, perform the following steps: Determine a suitable location for the Lightning Protector as described in As shown in Figure 3-3, secure bracket (A) to the wall using two screws (F). Use a ring-terminal to connect ground-wire (C) to bolt (B). The ring-terminal and ground wire are provided by the installer.
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Page 48: Mounting The Antenna
Mounting the Antenna Mounting the Antenna This section includes requirements and mounting guidelines for the RoamAbout outdoor antennas. Requirements for the Directional and 7 dBi Omni-Directional Antennas To minimize the influence of obstacles, signal interference or reflections, install the antenna at least 2 meters (6 feet) away from all other antennas. If you need to mount multiple antennas on a single mast, alternate the mounting of directional antennas for vertical and horizontal polarization. -
Page 49: Antenna Polarization
Antenna Polarization With RoamAbout outdoor antenna products, it does not matter what type of polarization you choose, as long as the antenna at one end of the communications link is mounted in the same plane as the antenna at the other end. -
Page 50: Mounting The Directional Antenna
Mounting the Antenna Mounting the Directional Antenna You can mount the RoamAbout 14 dBi directional antenna on a mast or a flat vertical surface such as a wall. In most cases, mounting the antenna on a mast allows more flexibility in adjusting the height and direction of the antenna in order to better aim it at the opposite end of the wireless link. - Page 51 Mounting the Antenna Figure 3-4: Mounting the 14 dBi Antenna to a Mast Side View Top View Figure 3-5: Mounting the 14 dBi Antenna to a Wall 3-11...
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Page 52: Mounting The Omni-Directional Antenna
Mounting the Antenna Mounting the Omni-Directional Antenna NOTE: To avoid signal reflection, you should not install the antenna to the NOTE side of a building. The RoamAbout 7 dBi omni-directional antenna kit includes a metal backing plate, two hose clamps, and a nut and lockwasher. Refer to Insert the threaded portion of the antenna mounting base (A) through the top of the mounting bracket (B). - Page 53 Mounting the Antenna Figure 3-6: Mounting the Omni-Directional Antenna to a Mast 3-13...
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Page 54: Mounting The Vehicle-Mount Antenna
Mounting the Antenna Mounting the Vehicle-Mount Antenna The vehicle-mount antenna is typically connected to a client in a wireless infrastructure network. The antenna is mounted to a moving vehicle, such as a fork-lift. Drill a hole in the top of the vehicle so that the antenna connector (at the bottom of the antenna as shown in provide and use a bracket to install the antenna to the side of the vehicle. -
Page 55: Roamabout Lightning Protector
Connecting the Antenna Cables To connect your RoamAbout AP to an outdoor antenna installation, you need the following components pictured on the right side of this page: A = RoamAbout Pigtail Connection (50 cm) B = RoamAbout Lightning Protector C = Low-Loss Antenna Cable... -
Page 56: Connecting The Cables
Secure the cable along its complete length. No part of the cable should be allowed to hang free. Use waterproof stretch tape to seal all outdoor connectors. 3-16 “Optimizing RoamAbout Outdoor Antenna 3-17. If required, adjust the direction of the antenna. -
Page 57: Optimizing Roamabout Outdoor Antenna Placement
Optimizing RoamAbout Outdoor Antenna Placement If an AP is connected to an outdoor directional antenna, the antenna must be pointed directly at the antenna for the other AP. A misaligned antenna can decrease the signal level or prevent communications. Aligning an omni-directional antenna is less critical due to its wide radiation pattern. -
Page 58: Routine Maintenance
Maintenance involves replacing the Gas Discharge Tube (GDT) at some interval depending on the lightning/transient discharge activity in your area. NOTE: Contact a local antenna installation company to determine the NOTE maintenance schedule for each RoamAbout Lightning Protector in your outdoor antenna installation. 3-18... -
Page 59: Roamabout 14 Dbi Directional Antenna
This appendix lists the specifications of the various RoamAbout outdoor antenna products. RoamAbout 14 dBi Directional Antenna The directional antenna is a totally enclosed 16-element Yagi designed for point-to-point communications. The antenna is normally mounted on a mast and vertically polarized. - Page 60 RoamAbout 14 dBi Directional Antenna Electrical • Frequency Range • VSWR • Nominal Impedance • Gain • Front-to-Back Ratio • Half-Power Beamwidth • Vertical (E-plane °) 30.8 Degrees • Horizontal (H-plane °) • Polarization Antenna Environment • Operating Temperature • Wind/survival (mph) •...
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Page 61: Roamabout 7 Dbi Omni-Directional Antenna
RoamAbout 7 dBi Omni-Directional Antenna The RoamAbout omni-directional antenna is a broadband antenna for the 2.4 GHz frequency band featuring an omni-directional pattern with a nominal gain of 7 dBi. This antenna is encapsulated in a weatherproof protective covering. With the hardware provided, this vertically-polarized antenna can be mounted on an antenna mast with an outside diameter of up to 51 mm (2 in.). -
Page 62: Vehicle-Mount Antenna
Vehicle-Mount Antenna Vehicle-Mount Antenna The RoamAbout vehicle-mount antenna can be mounted on vehicles, such as fork-lift trucks, that need continuous access to networked data whether inside or outside of the building. The following table provides the specifications for the vehicle-mount antenna. Table A-3: Vehicle-Mount Antenna Specifications Mechanical Connector Type (Access Point 2000) -
Page 63: Roamabout Pigtail Connection
Card. The N-Type connector at the opposite end of the cable matches the polarity of the N- connectors of the other components that are part of your outdoor antenna cabling system, subject to the country where the RoamAbout Pigtail Connection was purchased. -
Page 64: Low-Loss Antenna Cable
22 meters (75 feet) - see Table A-6 To ensure you order the right cable length, carefully determine the distance between the locations where you intend to mount the RoamAbout AP and outdoor antenna. Table A-5: Cable Specifications for the 15 Meter (50 Foot) Antenna Mechanical Specifications •... - Page 65 Table A-6: Cable Specifications for the 22 Meter (75 Foot) Antenna Mechanical Specifications • 22 meter (75 ft) Length • 10 mm (0.4 in.) Diameter • 101.2 gram/meter (0.068 lbs/ft) Weight • 25 mm (1 in.) Bend Radius Connector Type (Access Point 2000) •...
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Page 66: Roamabout Lightning Protector
RoamAbout Lightning Protector RoamAbout Lightning Protector The RoamAbout Lightning Protector is a surge arrestor that protects your sensitive RoamAbout equipment from high-voltage currents caused by discharge and transients at the antennas. Table A-7 lists the specifications for the RoamAbout Lightning Protector. Table A-7: Lightning Protector Specifications Mechanical Size...
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