Manual

FCC ID: LDK102064

Users Manual

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FCCID_814601

                        CISCO CO NFID ENTIA L - Draft 1




                                                                        CH A P T E R                   1
              Overview

              The Cisco Aironet 1520 Series Outdoor Mesh Access Point (hereafter called the access point) is a
              wireless device designed for wireless client access, point-to-point bridging, point-to-multipoint
              bridging, and point-to-multipoint mesh wireless connectivity. The access point is a standalone unit that
              can be mounted on a streetlight pole or on a building wall or overhang. It is a self-contained outdoor unit
              that can be configured with a wired backhaul connection to an Ethernet segment for a rooftop
              deployment or can be configured with a wireless backhaul for a pole-top deployment. The access point
              can be installed where power is available without the need for a wired network connection.
              The access point is available in two models: LAP1522 (supports 2.4-GHz and 5-GHz radios) and
              LAP1521 (supports a 2.4-GHz radio).The access point provides client access and wireless mesh
              backhaul that supports 6 to 54 Mbps data rates without the need for a license. The LAP1522 model
              dedicates the 5-GHz radio for backhaul operations to reach a wired network and uses the 2.4-GHz radio
              for wireless clients. The LAP1521 model uses the 2.4- or 5-GHz radio for both backhaul and wireless
              clients.
              The access point can also operate as a relay node for other access points not directly connected to a wired
              network. Intelligent wireless routing is provided by the patent-pending Adaptive Wireless Path Protocol
              (AWPP). This enables each access point to identify its neighbors and intelligently choose the optimal
              path to the wired network by calculating the cost of each path in terms of signal strength and the number
              of hops required to get to a controller.
              The access point is configured, monitored, and operated through a Cisco wireless LAN controller
              (hereafter called a controller) as described in the Cisco Wireless LAN Controller Configuration Guide.
              The Deployment Guide: Cisco Mesh Networking Solution describes how to plan and initially configure
              the Cisco Mesh network, which supports wireless point-to-point, point-to-multipoint, and mesh
              deployments. The controllers use a browser-based management system, a command-line interface (CLI),
              or the Cisco Wireless Control System (WCS) network management system to manage the controller and
              the associated access points. The access point is compliant with Wi-Fi Protected Access (WPA2) and
              employs hardware-based Advanced Encryption Standard (AES) encryption between wireless nodes to
              provide end-to-end security.
              This chapter provides information on the following topics:
               •   Main Hardware Features, page 2
               •   Network Configuration Examples, page 6




                                        Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide
OL-12632-01                                                                                                               1-1


Main Hardware Features
                 Some of the access point’s main hardware features are listed below:
                  •   One or two radios (2.4- and 5-GHz)—see the “Single or Dual Radio Operation” section on page 3
                  •   External radio antennas—see the “External Antennas” section on page 3
                  •   Multiple power sources—see the “Multiple Power Sources” section on page 4
                  •   Rugged metal enclosure—see the “Metal Enclosure” section on page 5
                  •   Optional Ethernet ports—see the “Ethernet Ports” section on page 5
                  •   Optional cable modem—see the
                  •   Optional hardware—see the “Optional Hardware” section on page 6
                       – Cable strand mount kit
                       – Pole mount kit
                       – 150 ft (45.72 m) Ethernet outdoor cable
                  •   Optional battery backup—future availability
                 Figure 1 shows the access point connectors.

                 Figure 1     Access Point Connectors




                 1                                                  4
                 2                                                  5
                 3                                                  6




      Overview
  2                                                                                                     OL-12632-01


Connectors
                The optional featues of the access point support these connectors (see Figure 1):
                 •   Ethernet (PoE) uplink connector—(type RJ45 with TBD for waterproofing)
                 •   Ethernet downlink connector—(type RJ45 with TBD for waterproofing)
                 •   Three Type N antenna connectors (2.4-GHz radio)
                 •   One Type N antenna connector (5-GHz radio)
                 •   Fiber-optic connector—Small form factor pluggable (SFP)
                 •   Power-over-cable (POC) connector—(TBD)
                 •   AC power connector


Single or Dual Radio Operation
                The access point is available in two models: LAP1522 (supports 2.4-GHz and 5-GHz radios) and
                LAP1521 (supports a 2.4- or 5-GHz radio). The radios use external antennas (see “External Antennas”).
                The LAP1522 model supports simultaneous dual-radio operation using a 2.4-GHz 802.11b/g radio and
                a 5-GHz 802.11a radio. The LAP1521 model supports both mesh backhaul operation and wireless
                clients using a single 2.4- or 5-GHz radio.
                The 5-GHz radio incorporates an Unlicensed National Information Infrastructure (UNII) radio
                transceiver operating in the UNII 5-GHz frequency bands. The 5-GHz radio on the access point is used
                for backhaul operations to the controller. The 5-GHz radio can also operate in the 4.9-GHz Public
                Safety band in the United States.


         Note   The 4.9-GHz band requires a license and may be used only by qualified Public Safety operators
                as defined in section 90.20 of the FCC rules.

                The 2.4-GHz radio supports three antennas for multi-input, single output (MISO) operation. The radio
                uses three receivers to support maximum ratio combining (MRC) to enhance receiver performance.
                MRC is a technique that combines the signals from multiple receivers in a manner to optimize the
                signals. MRC can provide up to 3 dB of increased receive signal strength.
                The access point does not support both radios configured for backhaul support


External Antennas
                The access point is equipped with three N-type radio frequency (RF) connector on the top of the unit
                for external 2.4-GHz antennas to support multiple input single output (MISO) operation. The LAP1522
                model also has one to three N-type RF connectors on the bottom of the unit for external 5-GHz antennas
                (see Figure 1). When using the optional Cisco compact omnidirectional antennas, the 2.4- and 5-GHz
                antennas connect directly to the access point. The Cisco omnidirectional antennas use vertical
                polarization.
                The access point can also be equipped with specific third-party external antennas (see Table 1 and
                Table 2), subject to local regulatory requirements. When you are installing third-party antennas, they
                must be installed with all waterproofing steps recommended by the third-party manufacturer.


         Note   When you mount the access point in an indoor environment, you must also mount the antennas
                in an indoor environment.



      Warning   Only trained and qualified personnel should be allowed to install, replace, or service
                this equipment. Statement 1030


                    Table 1 and Table 2 lists the supported external antennas for the access point.

                    Table 1      External 5-GHz Antennas

                    Part Number                                   Model                                                       Gain (dBi)
                                                                                                            1
                    AIR-ANT5180V-N                                5-GHz compact omnidirectional                               8
                                                                                                                2
                                                                  4.9-GHz compact omnidirectional                             7
                    AIR-ANT58G10SSA-N                             5-GHz sector                                                9.5
                                                                                          2
                    AIR-ANT5114P-N                                4.9- to 5-GHz patch                                         14.0
                                                                                                        2
                    AIR-ANT5117S-N                                4.9- to 5-GHz 90-degree sector                              17.0
                    1. The compact omnidirectional antennas mount directly on the access point.
                    2. The use of the 4.9-GHz band requires a license and may be used only by qualified Public Safety operators as defined in
                       section 90.20 of the FCC rules.



                    Table 2      External 2.4-GHz Antennas

                    Part Number                                   Model                                                       Gain (dBi)
                                                                                                                1
                    AIR-ANT2450V-N                                2.4-GHz compact omnidirectional                             5.5
                    AIR-ANT2480V-N                                2.4 GHz omnidirectional                                     8.0
                    1. The compact omnidirectional antennas mount directly on the access point.



Multiple Power Sources
                    The access point supports these power sources:
                     •   Power-over-Ethernet (POE)—1520 power injector
                     •   AC power—90 to 480 VAC
                     •   Quazi-AC power-over-cable (POC)—40 to 90 V
                     •   External 12 VDC
                     •   Internal battery
                    The access point can be connected to more than one power source. The access point detects the
                    available input sources and switches to the preferred power source using the following default
                    prioitization:
                     •   AC power or POC power
                     •   External 12VDC power
                     •   1250 Power Injetor PoE power
                     •   Internal Battery power


        Note        The power source default prioritization can be user reconfigured.



      Caution       To provide inline PoE, you must use the 1250 power injector. Other power injectors, PoE
                    switches, and 802.3af power sources cannot provide adequate power, which may cause the
                    access point to malfunction and cause over-current conditions at the power source. You
                    must ensure that the switch port connected to the access point has PoE turned off.



      Caution       The power injector and the power module must be used in an indoor environment only.



         Overview
  4                                                                                                                                 OL-12632-01


       Caution   When the access point is installed outdoors or in a wet or damp location, the AC branch
                 circuit that is powering the access point should be provided with ground fault protection
                 (GFCI), as required by Article 210 of the National Electrical Code (NEC).

                 The AC power cord options are listed below:
                  •   40-ft (12.2-m) power cord for light pole installations in the US and Canada.
                  •   40-ft (12.2-m) power cord for use outside the US and Canada. One end of the power cord is
                      terminated with an access point AC power connector and the other end is unterminated.
                  •   4-ft (1.2-m) streetlight power tap adapter for light pole installations in the US and Canada.


Ethernet Ports
                 The access point supports an Ethernet uplink port and a downlink port. The access point’s Ethernet
                 uplink port uses an RJ-45 connector (with weatherproofing) to link the access point to your10BASE-T,
                 100BASE-T, or 1000BASE-T network. The Ethernet cable is used to send and receive Ethernet data and
                 to optionally supply inline 56-VDC power from the power injector.
                 The access point’s downlink Ethernet port uses an RJ-45 connector (with weatherproofing) to provide
                 LAN connectivity and IEEE 802.3af power to a peripheral customer device, such as a camera or sensor
                 gateway.
                 The Ethernet MAC addresses are printed on the label on the side of the access point (refer to the
                 “Finding the Product Serial Number - TBD” section on page 13).


         Tips    The access point senses the Ethernet and power signals and automatically switches
                 internal circuitry to match the cable connections.



       Caution   To provide inline PoE, you must use the 1520 power injector. Other power injectors, PoE
                 switches, and 802.3af power sources can not provide adequate power, which may cause
                 the access point to malfunction and cause possible over-current conditions at the power
                 source.



Metal Enclosure
                 The access point uses a metal enclosure that can accommodate both indoor or outdoor operating
                 environments and an industrial temperature operating range of (–40°F (–40°C ) to 131°F (55°C). The
                 access point complies with NEMA Type 4X and IP66 requirements from IEC60529.


         Note    When the access point is mounted indoors, the antennas must also be mounted indoors.

                 Cable Modem


Optional Hardware
                   Some of the access point hardware options are listed below:
                    •   Cable modem—DOCSIS 2.0 compatible for direct connection to cable lines.
                    •   Fiber optic module—uses Small Form Factor Pluggable (SFP) connections for connection to fiber
                        optic lines.
                         – Supports 100BaseBX modules
                         – Supports 15.5 mi (25 km) of fiber-optic cable.
                    •   Pole mount kit (SKU - TBD)—provides hardware for mounting the access point to the top of a
                        metal or wood pole, such as a streetlight pole.
                    •   Streetlight power tap adapter (SKU - TBD)—connects to the light control connector on a streetlight
                        pole and provides AC power to the access point.
                    •   Outdoor rated Ethernet cable (???)—used to supply Ethernet and optional DC power to the access
                        point.
                    •   1520 power injector (SKU - TBD)—provides power-over-Ethernet (PoE) to the access point.
                    •   AC power cord (for additional information, refer to the “Multiple Power Sources” section on
                        page 4).
                    •   Future availability—battery backup module (80 Watt hour (WHr). The integrated battery can be
                        used to power the unit when external power sources are not available.
                         – Four hour access point operation using two radios at 77 oF (25oC)—with PoE output port off
                         – Two hour access point operation using two radios at 77oF (25 oC)— with PoE output port on
                         – User installable and replaceable
                    •



Network Configuration Examples
                   The access point is a wireless device designed for wireless client access and point-to-point bridging,
                   point-to-multipoint bridging, and point-to-multipoint mesh wireless connectivity. The access point
                   provides 5-GHz backhaul capability to link with another access point to reach a wired network
                   —connection or to provide repeater operations for other access points.
                   The access point plays two primary radio roles: a root access point (hereafter called a RAP) or a
                   non-root access point (hereafter called a MAP). When the access point has a wired Ethernet connection
                   to the controller (through a switch), the radio role is called a RAP. A RAP is a parent node to any
                   bridging or mesh network. A controller can support one or more RAPs, each one parenting the same or
                   different wireless networks. There can be more than one RAP for the same mesh network for
                   redundancy. RAPs also support wireless clients on the band not being used for the backhaul interface.
                   When the access point does not have a wired Ethernet connection to the controller (through a switch),
                   the radio role is called a MAP. The MAPs have a wireless connection (through the backhaul interface)
                   to other MAPs and finally to a RAP with an Ethernet connection through a switch to the controller.
                   MAPs may also have a wired Ethernet connection to a local LAN and serve as a bridge endpoint for that
                   LAN (using a point-to-point or point-to-multipoint bridge connection). MAPs also support wireless
                   clients on the band not used for the backhaul interface.




        Overview
  6                                                                                                            OL-12632-01


Wireless Backhaul
               The access point supports wireless backhaul capability using the 5-GHz radio to bridge to another
               access point to reach a wired network connection to a controller (see Figure 2). The access point
               connected to the wired network is considered a RAP in this configuration. The remote access point is
               considered a MAP and transfers wireless client traffic to the RAP for transfer to the wired network.
               Lightweight access point protocol (LWAPP) control traffic is also transferred over this bridged link.


        Note   The LAP 1505 model uses the 2.4-GHz radio for backhaul and wireless client operations.


               Figure 2     Access Point Backhaul Example

                                                 (5.8 Ghz)                      (2.4 Ghz)




                                                                                                     148438
Point-to-Point Bridging
               The access points can be used to extend a remote network by using the 5-GHz backhaul radio to bridge
               the two network segments as shown in Figure 3. To support Ethernet bridging, you must enable bridging
               on the controller for each access point.


        Note   The LAP 1505 model uses the 2.4-GHz radio for bridging operations.

               Wireless client access is supported; however, if bridging between tall buildings, the 2.4-Ghz wireless
               coverage area may be limited and possibly not suitable for direct wireless client access.

               Figure 3     Access Point Point-to-Point Bridging Example
                                                                                            148440


Point-to-Multipoint Bridging
                    The access points can be used as a RAP to connect multiple remote MAPs with their associated wired
                    networks (see Figure 4). By default this capability is turned-off for all access points. To support
                    Ethernet bridging, you must enable bridging on the controller for each access point.
                    Wireless client access can be provided over the bridging link; however, if bridging between tall
                    buildings, the 2.4-Ghz wireless coverage area may be limited and possibly not suitable for direct
                    wireless client access.

                    Figure 4    Access Point Point to Multipoint Bridging Example




                                                                                            148439
Mesh Network
                    The access points are typically deployed in a mesh network configuration. In a typical mesh
                    deployment, one or more RAPs have a wired network connection through a switch to a controller. Other
                    remote MAPs without wired network connections use the backhaul feature to optimally link to a RAP
                    that is connected to the wired network. In the mesh network, the links between the access points are
                    referred to as the backhaul links.
                    Intelligent wireless routing is provided by the patent-pending Adaptive Wireless Path protocol (AWPP).
                    This enables each MAP to identify its neighbors and intelligently choose the optimal path to the RAP
                    with the wired network connection by calculating the cost of each path in terms of signal strength and
                    the number of hops required to get to a controller.




         Overview
  8                                                                                                            OL-12632-01


Figure 5 illustrates a typical mesh configuration using MAPs and RAPs.

Figure 5    Typical Mesh Configuration Using Access Points




                                                                         155631
                                       IP


Layer 2 and Layer 3 Network Operation
                   The access points support Layer 2 or Layer 3 network operation. In Layer 2 configurations, the access
                   point and the controller are on the same subnet and communicate with encapsulated Ethernet frames
                   using MAC addresses rather than IP addresses. Layer 2 configurations are typically not scalable into
                   larger networks. Additionally, Layer 2 operation is supported only by the Cisco 4400 series controllers.
                   Access points and controllers in Layer 3 configurations use IP addresses and UDP packets, which can
                   be routed through large networks. Layer 3 operation is scalable and recommended by Cisco.
                   Figure 6 illustrates a typical Layer-3 wireless network configuration containing access points and a
                   controller.

                   Figure 6     Typical Layer 3 Access Point Network Configuration Example




                                                   LWAPP




                                                   LWAPP

                                                                                         158085




        Overview
  10                                                                                                           OL-12632-01


Figure 7 illustrates a typical Layer 2 network configuration. In a Layer 2 configuration, the controller
and the access points are on the same subnet.

Figure 7     Typical Layer 2 Access Point Network Configuration Example




                              LWAPP




                              LWAPP




                                                                    158084


     Overview
12              OL-12632-01


                        CISCO CO NFID ENTIA L - Draft 1




                                                                       A P P E N D I X                       B
              Declarations of Conformity and
              Regulatory Information

              This appendix provides declarations of conformity and regulatory information for the
              Cisco Aironet 1520 series lightweight outdoor mesh access point.
              This appendix contains the following sections:
               •   Manufacturers Federal Communication Commission Declaration of Conformity Statement, page 2
               •   Department of Communications—Canada, page 3
               •   Declaration of Conformity for RF Exposure, page 3
               •   Administrative Rules for Cisco Aironet Access Points in Taiwan, page 4




                                       Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide
OL-12632-01                                                                                                              B-1


Manufacturers Federal Communication Commission
Declaration of Conformity Statement

                              Tested To Comply
                              With FCC Standards

                 FOR HOME OR OFFICE USE


                Model:
                     AIR-LAP1522AG-A-K9
                     AIR-LAP1521G-A-K9
                FCC Certification number:

                     AIR-RM1520G-A-K9:              LDK102064
                   AIR-RM1520A-A-K9:               LDK102063
                Manufacturer:
                     Cisco Systems, Inc.
                     170 West Tasman Drive
                     San Jose, CA 95134-1706
                     USA
                This device complies with Part 15 rules. Operation is subject to the following two conditions:
                1.   This device may not cause harmful interference, and
                2.   This device must accept any interference received, including interference that may cause undesired
                     operation.
                This equipment has been tested and found to comply with the limits of a Class B digital device, pursuant
                to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
                interference when the equipment is operated in a residential environment. This equipment generates,
                uses, and radiates radio frequency energy, and if not installed and used in accordance with the
                instructions, may cause harmful interference. However, there is no guarantee that interference will not
                occur. If this equipment does cause interference to radio or television reception, which can be
                determined by turning the equipment off and on, the user is encouraged to correct the interference by
                one of the following measures:
                 •   Reorient or relocate the receiving antenna.
                 •   Increase separation between the equipment and receiver.
                 •   Connect the equipment to an outlet on a circuit different from which the receiver is connected.
                 •   Consult the dealer or an experienced radio/TV technician.


      Caution   The Part 15 radio device operates on a non-interference basis with other devices operating
                at this frequency when using Cisco-supplied antennas. Any changes or modification to the
                product not expressly approved by Cisco could void the user’s authority to operate this
                device.



      Caution   To meet regulatory restrictions, the access point must be professionally installed.




  2                                                                                                          OL-12632-01


        Note   The use of the 4.9-GHz band requires a license and may be used only by qualified Public Safety
               operators as defined in section 90.20 of the FCC rules ( LAP1510 model only).



VCCI Statement for Japan

     Warning   This is a Class B product based on the standard of the Voluntary Control Council for Interference from
               Information Technology Equipment (VCCI). If this is used near a radio or television receiver in a
               domestic environment, it may cause radio interference. Install and use the equipment according to
               the instruction manual.




Department of Communications—Canada
               IC Certification Number:

                    AIR-RM1520G-A-K9:              2461B-102064
                    AIR-RM1520A-A-K9:              2461B-102063


Canadian Compliance Statement
               This Class B Digital apparatus meets all the requirements of the Canadian Interference-Causing
               Equipment Regulations.
               Cet appareil numerique de la classe B respecte les exigences du Reglement sur le material broilleur du
               Canada.
               This device complies with Class B Limits of Industry Canada. Operation is subject to the following two
               conditions:
               1.   This device may not cause harmful interference, and
               2.   This device must accept any interference received, including interference that may cause undesired
                    operation.
               Cisco’s access points are certified to the requirements of RSS-210 issue 5, RSP 100, and RSS 102 for
               spread spectrum devices.



Declaration of Conformity for RF Exposure
               This access point product has been found to be compliant to the requirements set forth in CFR 47
               Section 1.1307 addressing RF Exposure from radio frequency devices as defined in Evaluating
               Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields.T
               he antennas should be positioned more than 6.56 feet (2 meters) from your body or nearby persons.
               This access point is also compliant to EN 50835 for RF exposure.


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English Translation
             Administrative Rules for Low-power Radio-Frequency Devices
             Article 12
             For those low-power radio-frequency devices that have already received a type-approval, companies,
             business units or users should not change its frequencies, increase its power or change its original
             features and functions.
             Article 14
             The operation of the low-power radio-frequency devices is subject to the conditions that no harmful
             interference is caused to aviation safety and authorized radio station; and if interference is caused, the
             user must stop operating the device immediately and can't re-operate it until the harmful interference is
             clear.
             The authorized radio station means a radio-communication service operating in accordance with the
             Communication Act.
             The operation of the low-power radio-frequency devices is subject to the interference caused by the
             operation of an authorized radio station, by another intentional or unintentional radiator, by industrial,
             scientific and medical (ISM) equipment, or by an incidental radiator.


6   OL-12632-01


                         CISCO CON FIDENTIAL - D raft 1




                                                                      CH A P T E R                   7
              Cisco Aironet 1520 Series Mesh Access Points

              This chapter lists the 1520 series mesh access point IEEE 802.11b/g (2.4-GHz) and IEEE 802.11a
              (5-GHz) channels and the maximum power levels supported by the world’s regulatory domains. For
              additional product hardware information refer to the Cisco Aironet 1520 Series Outdoor Mesh Access
              Point Hardware Installation Guide.
              The AIR-LAP1522 access point model supports both 802.11b/g and 802.11a radios, The AIR-LAP1521
              access point model only supports a 802.11b/g radio.
              The following topics are covered in this chapter:
               •   Channels and Maximum Power Levels, page 7-2
               •   Special Country Restrictions, page 7-5
               •   Special Country Restrictions, page 7-5




                                     Channels and Maximum Power Settings for Cisco Aironet Lightweight Access Points
OL-xxxxx-01                                                                                                            7-1


                                                                                      Chapter 7   Cisco Aironet 1520 Series Mesh Access Points
   Channels and Maximum Power Levels

                                  CISCO CON FIDENTIAL - D raft 1

Channels and Maximum Power Levels

IEEE 802.11b/g (2.4-GHz Band)
                     When shipped from the factory, theAIR-LAP1522G access points support the channels and maximum
                     power levels listed in Table 7-1 for their regulatory domain.


            Note     In Table 7-1, the operating data rates (in Mbps) are shown in the CCK and OFDM table cells. For
                     example: CCK 1-11 indicates CCK data rates of 1 to 11 Mbps and All indicates all CCK and OFDM data
                     rates.


                     Table 7-1           Channels and Maximum Conducted Power for the 802.11b/g Radio with Up to
                                         5.5-dBi Antennas

                                                       Maximum Conducted Power
                                                      Levels (dBm) in the Regulatory
                                                                Domains

                                       Center                         –A
                       Channel          Freq           CCK          OFDM           OFDM
                         ID            (MHz)           1-11          6-48           54
                           1            2412            28             25            25
                           2            2417            28             26            26
                           3            2422            28             27            26
                           4            2427            28             27            26
                           5            2432            28             27            26
                           6            2437            28             27            26
                           7            2442            28             27            26
                           8            2447            28             27            26
                           9            2452            28             27            26
                          10            2457            28             26            26
                          11            2462            28             25            25
                          12            2467             –             –              –
                          13            2472             –             –              –
                          14            2484             –             –              –




           Channels and Maximum Power Settings for Cisco Aironet Lightweight Access Points
 7-2                                                                                                                             OL-xxxxx-01


Chapter 7   Cisco Aironet 1520 Series Mesh Access Points
                                                                                                           Channels and Maximum Power Levels

                                      CISCO CON FIDENTIAL - D raft 1



                        Table 7-2           Channels and Maximum Conducted Power for the 802.11b/g Radio with Up to
                                            8.0-dBi Antennas

                                                            Maximum Conducted Power
                                                           Levels (dBm) in the Regulatory
                                                                     Domains

                                           Center                         –A
                          Channel           Freq           CCK          OFDM          OFDM
                            ID             (MHz)           1-11          6-48          54
                              1            2412             28            24            24
                              2            2417             28            25            25
                              3            2422             28            26            26
                              4            2427             28            27            26
                              5            2432             28            27            26
                              6            2437             28            27            26
                              7            2442             28            27            26
                              8            2447             28            27            26
                              9            2452             28            26            26
                              10           2457             28            25            25
                              11           2462             28            24            24
                              12           2467              –             –             –
                              13           2472              –             –             –
                              14           2484              –             –             –




                                                     Channels and Maximum Power Settings for Cisco Aironet Lightweight Access Points
OL-xxxxx-01                                                                                                                              7-3


                                                                                          Chapter 7   Cisco Aironet 1520 Series Mesh Access Points
     Channels and Maximum Power Levels

                                     CISCO CON FIDENTIAL - D raft 1

IEEE 802.11a (5-GHz Band)
                       When shipped from the factory, the AIR-LAP1522AG access points support the channels and maximum
                       power levels listed in Table 7-4 for their regulatory domain.


              Note     In Table 7-4, the operating data rates (in Mbps) are shown in the OFDM table cells. For example: OFDM
                       6-36 indicates 6 to 36 Mbps data rates.


Table 7-3        Channels and Maximum Conducted Power for IEEE 802.11a Radio with Up to 17 dBi Antennas

                                                  Maximum Conducted Power Levels (dBm) in the Regulatory Domains
                Center                                –A                             –N                              –T
  Channel     Frequency    Bandwidth      OFDM      OFDM      OFDM       OFDM      OFDM        OFDM      OFDM      OFDM      OFDM
    ID          (MHz)        (MHz)         6-36      48        54         6-36      48          54        6-36      48        54
                                                      (4900 to 5100 MHz)
    20          4950            20          20        20        20         –          –          –         –          –         –
    21          4955            20          20        20        20         –          –          –         –          –         –
    22          4960            20          20        20        20         –          –          –         –          –         –
    23          4965            20          20        20        20         –          –          –         –          –         –
    24          4970            20          20        20        20         –          –          –         –          –         –
    25          5975            20          20        20        20         –          –          –         –          –         –
    26          4980            20          20        20        20         –          –          –         –          –         –
                                                      5725 to 5850 MHz
    149         5745            20          28        27        26         28        27         26         28        27        26
    153         5765            20          28        27        26         28        27         26         28        27        26
    157         5785            20          28        27        26         28        27         26         28        27        26
    161         5805            20          28        27        26         28        27         26         28        27        26
    165         5825            20          28        27        26         28        27         26         28        27        26




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Special Country Restrictions
                          Table 7-4 lists special restrictions for wireless operation in some countries.

Table 7-4           Special Country Restrictions for Wireless Operation

                          Frequency            Regulatory
Country                   Band (GHz)           Domain             Special Limitation and Restrictions
Australia                 5                    –N                 5 GHz maximum antenna gain limited to 7 dBi.
Mexico                    2.4                  –N                 End user must limit 2.4 GHz operation to 2450 to 2483.5 MHz and 36
                                                                  dBm EIRP1.
New Zealand               5                    –N                 5 GHz maximum antenna gain limited to 7 dBi.
United States             4.9                  –A                 The use of the 4.9-GHz band requires a license and may be used only
                                                                  by qualified Public Safety operators as defined in section 90.20 of the
                                                                  FCC rules.
1. EIRP (dBm) = maximum output power (dBm) + antenna gain (dBi)




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Changing the Lightweight Access Point Output Power
                       This section provides instructions for changing the 1500 series access point output power to comply with
                       the maximum power limits imposed by special regulatory and country restrictions (see the “Special
                       Country Restrictions” section on page 7-5). Follow these instructions to change the output power
                       settings using a controller and your browser:


             Note      Administrator privileges may be required in order to change access point settings.



          Caution      To meet regulatory restrictions, the access point and the external antenna must be professionally
                       installed. The network administration or other IT professional responsible for installing and configuring the
                       unit is a suitable professional installer. Following installation, access to the unit should be
                       password-protected by the network administrator to maintain regulatory compliance.

                       The output power on the 1500 series access points can be changed only by using a Cisco wireless LAN
                       controller (2600 series or 4400 series), the controllers on a Cisco Wireless Services Module (WiSM), or
                       using Cisco Wireless Control System (WCS).


             Note      See the Cisco Wireless LAN Controller Configuration Guide for more details on how to to configure your
                       access point using the web-browser interface.

                       Follow these steps to change the 1500 series access point’s output power to meet local regulations using
                       a controller:


           Step 1      Open your Internet browser. You must use Microsoft Internet Explorer 6.0.2800 or a later release.
           Step 2      Enter https://IP address (where IP address is the controller’s IP address) in the browser address line
                       and press Enter. A user login screen appears.
           Step 3      Enter the username and password and press Enter. The controller’s summary page appears.


                       Note     The username and password are case-sensitive.

           Step 4      Click Wireless > 802.11a Radios or 802.11b/g Radios and a list of associated access points appears.
           Step 5      Choose the desired access point from the displayed list and click Configure. The the radio settings page
                       appears.
           Step 6      Scroll down to the Tx Power Level Assignment field, and click Custom.
                       Custom indicates that the radio output power is manually controlled by the Tx Power Configuration
                       setting field.




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              Step 7    In the Tx Power Level field, select the appropriate power level setting (1 to 5).
                        Based on the operating channel, the regulatory domain, and the controller power level setting (1 to 5),
                        the actual transmit power at the access point can be reduced to comply with special regulatory or country
                        restrictions.


                        Note      The access point supports only two output power levels for the 2.4-GHz radio and three output
                                  power levels for the 5-GHz radio.



                        Note      Table 7-1 and Table 7-3 list the access point maximum output power levels supported for each
                                  regulatory domain when the access point is shipped from the factory.

                        Table 7-5 lists the controller power settings and the corresponding output power levels for these two
                        examples:
                          •    2.4-GHz (802.11b/g) operation:
                                – American regulatory domain
                                – Channel 3 using 11-Mbps data rates
                          •    5-GHz (802.11a) operation:
                                – American regulatory domain
                                – Channel 149 using 36-Mbps data rates

                        Table 7-5           Example of Output Power Levels

                                                                          Radio Output Power
                         Controller                              802.11b/g
                         Tx Power Settings1                      (dBm)               802.11a (dBm)
                                                                      2
                         1 (maximum)                             24                  24 3
                         2                                       21                  21
                         1. The Tx Power Level setting of 1 represents the maximum conducted power
                            setting for the access point. Each subsequent controller power level (such as
                            2, 3, 4, etc.) represents an approximate 3-dBm reduction in transmit power
                            from the previous power level.
                         2. The maximum output power level obtained from Table 7-1.
                         3. The maximum output power level obtained from Table 7-3.


              Step 8    Click Apply.
              Step 9    Close your Internet browser.
                        For additional configuration information, refer to the Cisco Wireless LAN Controller Configuration
                        Guide.




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Document Created: 2007-03-30 07:55:48
Document Modified: 2007-03-30 07:55:48

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