Cisco Aironet 1520 Series Manual
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Cisco Aironet 1520 Series Manual

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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
OL-12632-01
C I S C O C O N F I D E N T I A L - D r a f t 1
Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide
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C H A P T E R
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Summary of Contents for Cisco Aironet 1520 Series

  • Page 1 C H A P T E R 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.

  • Page 2: Main Hardware Features

    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 •...

  • Page 3: Single Or Dual Radio Operation

    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.

  • Page 4: Multiple Power Sources

    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) AIR-ANT5180V-N 5-GHz compact omnidirectional 4.9-GHz compact omnidirectional AIR-ANT58G10SSA-N 5-GHz sector AIR-ANT5114P-N 4.9- to 5-GHz patch 14.0 AIR-ANT5117S-N 4.9- to 5-GHz 90-degree sector 17.0...

  • Page 5: Ethernet Ports

    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.

  • Page 6: Optional Hardware

    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.

  • Page 7: Wireless Backhaul

    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.

  • Page 8: Point-To-Multipoint Bridging

    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;...
  • Page 9 Figure 5 illustrates a typical mesh configuration using MAPs and RAPs. Figure 5 Typical Mesh Configuration Using Access Points...

  • Page 10: Layer 2 And Layer 3 Network Operation

    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.
  • Page 11 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...
  • Page 12 Overview OL-12632-01...

  • Page 13: Declarations Of Conformity And Regulatory Information

    • 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...

  • Page 14: Manufacturers Federal Communication Commission Declaration Of Conformity Statement

    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.

  • Page 15: Vcci Statement For Japan

    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...

  • Page 16: Administrative Rules For Cisco Aironet Access Points In Taiwan

    Administrative Rules for Cisco Aironet Access Points in Taiwan This section provides administrative rules for operating Cisco Aironet access points in Taiwan. The rules are provided in both Chinese and English. Chinese Translation OL-12632-01...

  • Page 17: English Translation

    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;...
  • Page 18 OL-12632-01...
  • Page 19 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.

  • Page 20: Channels And Maximum Power Levels

    OFDM OFDM (MHz) 1-11 6-48 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 – – – 2472 – – – 2484 – – – Channels and Maximum Power Settings for Cisco Aironet Lightweight Access Points OL-xxxxx-01...
  • Page 21 OFDM OFDM (MHz) 1-11 6-48 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 – – – 2472 – – – 2484 – – – Channels and Maximum Power Settings for Cisco Aironet Lightweight Access Points OL-xxxxx-01...
  • Page 22 – – – – – 5975 – – – – – – 4980 – – – – – – 5725 to 5850 MHz 5745 5765 5785 5805 5825 Channels and Maximum Power Settings for Cisco Aironet Lightweight Access Points OL-xxxxx-01...
  • Page 23 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) Channels and Maximum Power Settings for Cisco Aironet Lightweight Access Points OL-xxxxx-01...
  • Page 24 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).
  • Page 25 3. The maximum output power level obtained from Table 7-3. Click Apply. Step 8 Close your Internet browser. Step 9 For additional configuration information, refer to the Cisco Wireless LAN Controller Configuration Guide. Channels and Maximum Power Settings for Cisco Aironet Lightweight Access Points OL-xxxxx-01...
  • Page 26 Changing the Lightweight Access Point Output Power C I S C O C O N F I D E N T I A L - D r a f t 1 Channels and Maximum Power Settings for Cisco Aironet Lightweight Access Points OL-xxxxx-01...

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