Cisco Systems 1520 User's Manual
Contents
1. Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide I oL 12632 03 ELEN Chapter1 Overview His Network Deployment Examples Layer 3 Network Operation The access points support Layer 3 network operation 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 1 9 illustrates a typical Layer 3 wireless network configuration containing access points and a controller Figure 1 9 Typical Layer 3 Access Point Network Configuration Example ey S S 158085 Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide E OL 12632 032. CHAPTER 1 Overview The Cisco Aironet 1520 Series Outdoor Mesh Access Point hereafter called the access point is a modularized wireless outdoor access point designed for use in a mesh network The access point also supports 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 The LAP1522 model supports two radios 2 4 GHz and 5 GHz and the LAP1524 model supports up to 4 radios 2 4 GHz 5 8 GHz and 4 9 GHz public safety band Both models provide client access without the need for a license The 5 GHz radios are dedicated to backhaul operations to reach a wired network and the 2 4 GHz radio is used for wireless clients The 4 9 GHz public safety band radio is used for backhaul and access The access point can support 6 to 54 Mb s data rates The access point is manufactured in three configurations cable pole mount and mesh The cable configuration has three antenna connectors on the top of the unit can be mounted to a cable strand and supports power over cable POC The pole mount configuration supports two antennas on the top and bottom of the unit It can be mounted to a pole or building wall and supports fiber optic networks and several power options The Mesh configuration has two antennas on the top and bottom of the unit It can be powered by AC and only supports wireless backhaul communications to reach th
3. 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 one of two primary radio roles a root access point hereafter called a RAP or the access points that relay their wireless connections to the controller are called mesh access points MAPs When the access point has a wired Ethernet fiber optic or cable 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 Both RAP and MAP access points can support wireless clients using the 2 4 GHz radio Note The access point must be configured as a RAP in the controller whereas the MAP role is a default setting When the access point does not have a wired Ethernet fiber optic or cable connection to the controller 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 or cable connection through a switch to the controller MAPs can 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 Wireless Backhaul The access
4. The access point uses two or 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 received signal strength MRC can provide up to 3 dB of increased receive signal strength with two receive antennas or up to 5 dB with three antennas External Antennas A The access point supports up to three N type radio frequency RF antenna connectors on the top of the unit and two on the bottom of the unit The number of active antenna connectors depends upon the access point configuration see Antenna Connector Locations page 1 5 All access point configurations supports multiple 2 4 GHz antennas for MISO operation but only one 5 GHz antenna 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 Warning A Only trained and qualified personnel should be allowed to install replace or service this equipment Statement 1030 The access point has been designed to operate with the antennas listed below and with a maximum gain of 8 dBi for 2 4 GHz and 17 dBi for 5 GHz Antennas not in this list or with a higher gain are strictly prohibited for use with the access point The required antenna impedance is 50 ohms To reduce potential radio interference to other users the antenna type
5. 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 might be limited and possibly not suitable for direct wireless client access Figure 1 7 Access Point Point to Multipoint Bridging Example kimi 000000 ea CEGE ELE itt EERE ANE E 148439 Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide Ea OL 12632 03 Chapter1 Overview Network Deployment Examples W 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 patented 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 Figure 1 8 illustrates a typical mesh configuration using MAPs and RAPs Figure 1 8 Typical Mesh Configuration Using Access Points
6. A Connect the unit only to DC power source that complies with the safety extra low voltage SELV requirements in IEC 60950 based safety standards Statement 1033 e Internal battery The access point can be connected to more than one power source The access point detects the available power sources and switches to the preferred power source using the following default prioritization e AC power or POC power e External 12 VDC power e Power injector PoE power e Internal battery power Warning A This unit might have more than one power supply connection All connections must be removed to de energize the unit Statement 1028 Caution A To provide inline PoE you must use the 1520 power injector AIR PWRINJ1500 2 Other power injectors PoE switches and 802 3af power sources cannot provide adequate power which can cause the access point to malfunction and cause over current conditions at the power source Caution amp The 1520 power injector AIR PWRINJ1500 2 must be used in an indoor environment only Note In the cable configuration the cable modem is activated only when the access point is powered by POC or external 12 VDC power When using only PoE power the cable modem is deactivated E Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide OL 12632 03 _ Chapter 1 Overview A Hardware Features W Caution When the access point is
7. Strand mount kit AIR ACCSMK1520 provides hardware for mounting the access point to a cable strand Streetlight power tap adapter AIR PWR ST LT R3P connects to the light control connector on a streetlight pole and provides AC power to the access point 1520 power injector AIR PWRINJ1500 2 provides PoE to the access point 40 ft 12 2 m power cord for light pole installations in the US and Canada AIR CORD R3P 40NA provides AC power to the access point One end of the power cord is terminated with an access point AC power connector and the other end is terminated with an AC plug Battery backup module AIR 1520 BATT 6AH The integrated battery can be used for temporary backup power during external power interruptions 3 hour access point operation using two radios at 77 F 25 C with PoE output port off Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide OL 12632 03 _ Chapter 1 Overview Network Deployment Examples W 2 hour access point operation using two radios at 77 F 25 C with PoE output port on e banding strap tool BAND IT AIR BAND INST TL used to install the metal straps used in pole mounting Network Deployment Examples amp 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
8. and its gain should be chosen so that the equivalent isotropically radiated power E I R P is not more than required for successful communication Caution For directly mounted antennas you must not add weatherproofing around the antenna connectors because the antenna drain holes might be blocked and damage the antenna Table 1 2 and Table 1 3 list the supported external antennas for the access point Table 1 2 External 5 GHz Antennas Part Number Model Gain dBi AIR ANT5180V N 5 GHz compact omnidirectional 8 AIR ANTS8GI10SSA N 5 GHz sector 9 5 AIR ANT5114P N 5 GHz patch 14 AIR ANT5117S N 5 GHz 90 degree sector 17 1 Operation in 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 Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide OL 12632 03 EN Chapter1 Overview W Hardware Features Table 1 3 External 2 4 GHz Antennas Part Number Model Gain dBi AIR ANT2450V N 2 4 GHz compact omnidirectional 5 5 AIR ANT2480V N 2 4 GHz omnidirectional 8 Multiple Power Sources A The access point supports these power sources e PoE power injector AIR PWRINJ1500 2 e AC power 100 to 480 VAC standard power source for the pole mount configuration e POC 40 to 90 VAC quasi square wave AC standard power source for the cable configuration e External 12 VDC Warning
9. cable modem for connection to the cable network from the pole mounted cable lines The access point can be powered using the 40 to 90 VAC quasi square wave AC power provided by the cable network amp Note The access point uses a Scientific Atlanta DPC2100 cable modem board and 4015821 RF splitter The cable modem supports these main features Metal Enclosure Data Over Cable Service Interface Specifications DOCSIS 2 0 Backward compatibility with existing DOCSIS 1 1 and 1 0 networks The access point uses a metal enclosure that can accommodate both indoor or outdoor operating environments and an industrial temperature operating range of 40 to 131 F 40 to 55 C The access point complies with NEMA 4 and IP67 requirements Optional Hardware Some of the access point hardware options are listed below Fiber optic module and take up reel kit GLC FE 100BX URGD Small form factor pluggable SFP module for connection to fiber optic lines The take up reels are used to store excess fiber optic cable by wrapping the cable around the reels Single strand fiber bidirectional optical transceiver 1 3 transmit 1 5 receive micrometer wavelength division multiplexing WDM function 100 Mb s data rates LC receptacle Supports up to 15 5 mi 25 km of fiber optic cable Pole mount kit AIR ACCPMK1520 provides hardware for mounting the access point to a metal or wood pole such as a streetlight pole
10. e configurations support specific locations for the access point antennas as shown in Table 1 1 Table 1 1 Antenna Locations per Access Point Configuration Antenna Access Point Configurations Port Cable Mesh and Pole Mount 1 2 4 GHz antenna connector RX 5 GHz antenna connector TX RX 2 5 GHz antenna connector TX RX I OL 12632 03 Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide Chapter1 Overview W Hardware Features Table 1 1 Antenna Locations per Access Point Configuration continued Port Cable Mesh and Pole Mount 3 2 4 GHz antenna connector 2 4 GHz antenna connector RX TX RX 4 E 2 4 GHz antenna connector RX 5 _ _l 6 2 4 GHz antenna connector TX RX 1 Reserved for future use Some of the access point s hardware features are listed below Connectors Multiple radios 2 4 GHz 5 GHz and 4 9 GHz see the Multiple Radio Operation section on page 1 6 External radio antennas see the External Antennas section on page 1 7 Multiple power sources see the Multiple Power Sources section on page 1 8 Ethernet ports see the Ethernet Ports section on page 1 9 Rugged metal enclosure see the Metal Enclosure section on page 1 10 Optional cable modem see the Cable Modem section on page 1 10 Optional hardware see the Optional Hardware section on page 1 10 The optiona
11. e wired network It does not support hard wired communications cable fiber optic or Ethernet to a wired network The access point is also available as a hazardous location option When configured the access point complies with safety standards for Class I Division 2 Zone 2 hazardous locations in which ignitable concentrations of flammable gases vapors or liquids are not likely to exist under normal operation conditions When you select the hazardous location option as part of the ordering process Cisco configures the system to contain the new components Two conduit adaptors and assembly instructions placed in the shipping box provide information and assembly procedures 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 patented 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 supp
12. 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 GFCD as required by Article 210 of the National Electrical Code NEC The Ethernet cable from the power injector to the access point PoE in port must be not less than 10 ft 3 1 m The AC power cord options are listed below e 40 ft 15 2 m power cord for light pole installations in the US and Canada One end of the power cord is terminated with an access point AC power connector and the other end is terminated with an AC plug AIR CORD R3P 40NA e 40 ft 15 2 m power cord for light pole installations in the European Union One end of the power cord is terminated with an access point AC power connector and the other end is unterminated Users must install a plug that is certified for outdoor use and that it has a minimum IP67 rating such as Interpower 84131251 or Hubbell HBL316P6W IEC EN60309 pin and sleeve type connectors AIR CORD R3P 40UE e 4 ft 1 2 m streetlight power tap adapter for light pole installations in the US and Canada AIR PWR ST LT R3P Ethernet Ports The access point supports a PoE in port and a PoE out port The access point s PoE in port uses an RJ 45 connector with a liquid tight adapter to link the access point to the 10 100 1000BASE T network The Ethernet cable is used to send and receive Ethernet data and to optionally supply inline 56 VDC
13. l features of the access point support these connectors see Figure 1 1 PoE in connector internal RJ 45 with liquid tight adapter for waterproofing PoE out connector internal RJ 45 with liquid tight adapter for waterproofing Three four or six antenna connectors Type N depends on access point configuration Fiber optic connector internal small form factor pluggable SFP transceiver with LC connector Power over cable POC stinger connector customer provided AC power connector 3 pin Remke Mini Link 50908 DC power connector internal 2 pin connector Multiple Radio Operation The access point supports 2 4 GHz and 5 GHz radios using 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 1 1a radio The 5 GHz radio can operate in either the upper industrial scientific and medical ISM 5 8 GHz band or the public safety 4 9 GHz band The 5 GHz radio supports one antenna and is used for backhaul operations to the controller Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide OL 12632 03 _ Chapter 1 Overview Hardware Features W Note The 4 9 GHz band requires a license and can only be used by qualified public safety operators as defined in section 90 20 of the FCC rules The 2 4 GHz radio supports two or three antennas for single input multiple output SIMO operation
14. n port 6 Aux console port Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide OL 12632 03 Chapter1 Overview Hardware Features W Figure 1 2 Cable Fiber Optic and Antenna Connector Locations 1 Cable POC connector optional 4 Antenna port 2 Type N 2 Fiber optic connector optional 5 Antenna port 1 Type N 3 Antenna port 37 Type N 1 Stinger connector shown is user supplied Antenna locations depend upon access point configuration see the Antenna Connector Locations section on page 1 5 Liquid tight adapter not shown Y3 Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide I 0L 12632 03 EEN Chapter1 Overview W Hardware Features Figure 1 3 DC Power Connector and Ground Screw Holes 1 Ground screw holes 2 DC power connector Figure 1 4 shows the antenna port locations for all models The ports used depend on the model ordered Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide ia OL 12632 03 _ Chapter 1 Overview Hardware Features W Figure 1 4 Antenna Port Locations 231401 1 Antenna port 1 5 Hinge 2 Antenna port 2 6 Antenna port 5 3 Antenna port 3 7 Antenna port 6 4 Antenna port 4 Antenna Connector Locations The access point is manufactured in three configurations cable mesh and pole mount Thes
15. orts 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 supports hardware based advanced encryption standard AES encryption between wireless nodes to provide end to end security I OL 12632 03 Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide Chapter1 Overview W Hardware Features This chapter provides information on the following topics e Hardware Features page 1 2 e Network Deployment Examples page 1 11 Hardware Features This section describes the hardware features of the access point Figure 1 1 Figure 1 2 and Figure 1 3 show the access point connectors amp Note The illustrations in this document show all available connections for the access point Unused connections are capped with a connector plug to ensure the access point s watertight integrity Liquid tight adapters are provided for connector openings which can be installed before or after deploying the access point Figure 1 1 Access Point Bottom Connectors 1 Antenna port 4 7 AC input connector 2 Antenna port 5 8 Fiber port 3 Antenna port 6 9 PoE out port 4 Fiber port optional 10 LEDs 5 Cable POC port optional 11 PoE i
16. 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 1 5 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 Figure 1 5 Access Point Backhaul Example 5 8 Ghz C00G000G0000 KP 2 4 Ghz vococcoffi ima _ A N y 148438 I OL 12632 03 Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide Chapter1 Overview His Network Deployment Examples 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 1 6 To support Ethernet bridging you must enable bridging on the controller for each access point Figure 1 6 Access Point Point to Point Bridging Example EELE CECE ELLE EL 0 14844 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 1 7 By default this capability is turned off for all access points To support Ethernet bridging you must enable bridging on the controller
17. power from the power injector The access point s PoE out 10 100 1000BASE T port uses an RJ 45 connector with a liquid tight adapter to provide LAN connectivity and IEEE 802 3af power to a single peripheral customer device such as a camera or sensor gateway The PoE out port should not be connected to a switch or hub Note A The PoE out port is disabled when the access point is powered by the power injector The Ethernet MAC addresses is printed on the bottom of the access point under the LEDs refer to the Finding the Product Serial Number section on page XIV Warning A To reduce the risk of fire use only No 26 AWG or larger telecommunication line cord Statement 1023 The Ethernet cable must be a shielded outdoor rated Category 5e CAT5e or better cable 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 AIR PWRINJ1500 2 Other power injectors POE switches and 802 3af power sources cannot provide adequate power which may cause the access point to malfunction and cause possible over current conditions at the power source I OL 12632 03 Cisco Aironet 1520 Series Outdoor Mesh Access Point Hardware Installation Guide Chapter1 Overview W Hardware Features Cable Modem The access point cable configuration contains an internal
Download Pdf Manuals
Related Search