Cisco Systems OL-9977-05 manual Avoiding Damage to Radios in a Testing Environment

Page 37

Chapter 2 Mounting Instructions

Avoiding Damage to Radios in a Testing Environment

C i s c o C o n f i d e n t i a l - D r a ft 1

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

For safety, and to help you achieve a good installation, please read and follow these safety precautions. They may save your installer’s life!

1.Select your installation site with safety, as well as performance in mind. Remember: electric power lines and phone lines look alike. For safety, assume that any overhead line can kill.

2.Call your electric power company. Tell them your plans and ask them to come look at your proposed installation. This is a small inconvenience considering your installer’s life is at stake.

3.Plan your installation carefully and completely before you begin. Successful raising of a mast or tower is largely a matter of coordination. Each person should be assigned to a specific task, and should know what to do and when to do it. One person should be in charge of the operation to issue instructions and watch for signs of trouble.

4.When installing the access point and antennas, remember:

a.Do not use a metal ladder.

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

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

5.Use a rope to lift the access point. If the assembly starts to drop, get away from it and let it fall.

6.If any part of the antenna system should come in contact with a power line, don’t touch it or try to remove it yourself. Call your local power company. They will remove it safely.

If an accident should occur call for qualified emergency help immediately.

Avoiding Damage to Radios in a Testing Environment

The radios on outdoor units (bridges) have higher transmit power levels than radios on indoor units (access points). When you test high power radios in a link, you must avoid exceeding the receiver’s maximum receive input level. At levels above normal the operating range, packet error rate (PER) performance is degraded. At even higher levels, the receiver can be permanently damaged. To avoid receiver damage and PER degradation, you can use one of the following techniques:

•Separate the omnidirectional antennas by at least 2 ft (0.6 m) to avoid receiver damage or by at least 25 ft (7.6 m) to avoid PER degradation.

Note These distances assume free space path loss and are conservative estimates. Required separation distances for damage and performance degradation levels in actual deployments will be less due to non line-of-sight propagation conditions.

•Reduce the configured transmit power to the minimum level.

•Use directional antennas and keep them away from each other.

•Cable the radios together using a combination of attenuators, combiners, or splitters to achieve a total attenuation of at least 60 dB.

Cisco Aironet 1500 Series Outdoor Mesh Access Point Hardware Installation Guide

 

OL-9977-05

2-5

 

 

 

Page 36 Page 38
Image 37
Page 36 Page 38
Contents Americas Headquarters Page N T E N T S Mesh Network English Translation B-5 OL-9977-05 Objectives PrefaceAudience OrganizationBewaar Deze Instructies ConventionsSäilytä Nämä Ohjeet Guarde Estas Instruções GEM Disse Anvisninger Viii Obtaining Documentation Related PublicationsCisco Product Security Overview Documentation FeedbackCisco.com Product Documentation DVD Ordering DocumentationProduct Alerts and Field Notices Reporting Security Problems in Cisco ProductsCisco Support Website Obtaining Technical AssistanceFinding the Product Serial Number Submitting a Service RequestObtaining Additional Publications and Information Definitions of Service Request SeverityPreface Obtaining Additional Publications and Information Xvi Overview Hardware Features, Network Configuration Examples,Access Point Connectors Hardware FeaturesSingle or Dual Radio Operation ConnectorsExternal Antennas Part Number Model Gain dBi Multiple Power SourcesEthernet Port Metal Enclosure Network Configuration ExamplesOptional Hardware Point-to-Point Bridging Wireless BackhaulMesh Network Point-to-Multipoint BridgingTypical Mesh Configuration Using Access Points Layer 2 and Layer 3 Network Operation Typical Layer 3 Access Point Network Configuration ExampleTypical Layer 2 Access Point Network Configuration Example OL-9977-05 Mounting Instructions Package Contents Unpacking the Access PointTools and Materials Safety Information Safety Precautions FCC Safety Compliance StatementAvoiding Damage to Radios in a Testing Environment Site Surveys Installation GuidelinesBecoming Familiar with Access Point Installation Components Before Beginning the InstallationComponents in a Typical Access Point Installation Streetlight Power Tap Adapter Installation Choose Security MAC Filtering New Enabling Zero Touch Configuration on the ControllerConfiguring a RAP Mounting the Access PointInstallation Options Access Point Mounting Orientations Preferred Horizontal Orientation 5illustrates the access point vertical orientation Access Point Mounting Plate and Carriage Bolts Mounting Plate Screw Hole Locations Roof-Overhang InstallationMounting the Access Point on a Pole Adjustment Plate Attached to the Mounting Plate Pole Clamp and Clamp Adjustment Plate Mounted on a Pole 10 Access Point Attached to the Pole Clamp Streetlight Pole Installations Grounding the Access PointS c o C o n f i d e n t i a l D r a ft 11 Using the Streetlight Power Tap Adapter What to Do Next Troubleshooting Controller MAC Filter List Guidelines for Using the Access PointsMisconfigured Bridge Shared Secret Key Using Dhcp OptionMisconfigured Mesh Access Point IP address Verifying Controller Association Access Point PowerTranslated Safety Warnings OL-9977-05 Declarations of Conformity Regulatory Information For Home or Office USE Canadian Compliance Statement Vcci Statement for Japan Industry CanadaChinese Translation Declaration of Conformity for RF ExposureEnglish Translation Access Point Models Operation of Cisco Aironet Access Points in BrazilCCK Access Point SpecificationsANSI/IEEE C62.41 Channels and Power Levels OL-9977-05 Pin Number Signal Name Connector PinoutsVDC power + Figure F-1 Typical Priming Configuration Priming Access Points Prior to DeploymentAppendix F Priming Access Points Prior to Deployment Appendix F Priming Access Points Prior to Deployment OL-9977-05 Configuring Dhcp Option Overview Access Point Vendor Class Identifier VCIQuotation marks must be included Configuring Option 43 for 1000 Series Access PointsType + Length + Value Configuring Option 43 for 1500 Series Access Points OL-9977-05 D E IN-2 IN-3 IN-4

OL-9977-05 specifications

Cisco Systems OL-9977-05 is a pivotal reference guide that caters to networking professionals seeking an in-depth understanding of Cisco's infrastructure and certification processes. It encapsulates the essence of modern networking technologies, emphasizing the importance of robust, scalable, and secure network architectures.

One of the primary features of the OL-9977-05 document is its comprehensive overview of Cisco's routing and switching technologies. It covers essential protocols such as OSPF, EIGRP, and BGP, explaining how these dynamic routing protocols contribute to efficient data transmission across diverse networks. Cisco’s focus on interoperability ensures that various systems can communicate smoothly, a critical characteristic in today’s multi-vendor environments.

Security is a cornerstone of Cisco's offerings, and OL-9977-05 delves into advanced security frameworks, including the implementation of firewalls, intrusion prevention systems, and VPNs. It emphasizes the significance of securing both physical and virtual network components to thwart cyber threats. The documentation highlights Cisco's security technologies, such as Cisco Umbrella and Cisco SecureX, providing insights into creating a resilient and secure network.

Another salient feature of the OL-9977-05 is its focus on emerging technologies like software-defined networking (SDN) and network function virtualization (NFV). These technologies represent a paradigm shift in how networks are designed and managed, allowing for more flexible, efficient, and programmable network resources. The guide explores Cisco's innovations in these areas, such as the Cisco ACI and Cisco DevNet, which facilitate the automation and orchestration of network services.

Collaboration and communication tools are also well-covered within the document, highlighting Cisco’s Unified Communications solutions. These tools enhance productivity by enabling seamless communication across various platforms and devices. The integration of cloud services further extends the capabilities of these solutions, aligning with modern business needs.

In conclusion, Cisco Systems OL-9977-05 serves as an essential resource for networking professionals. Its focus on advanced routing and switching, robust security protocols, cutting-edge technologies like SDN and NFV, and collaboration tools provides a holistic view of Cisco's network solutions. This documentation not only supports Cisco certification preparation but also serves as a valuable reference for real-world networking scenarios, ensuring that professionals are well-equipped to tackle the challenges of contemporary network management.
Top Page Image Contents