Cisco Systems BRB4K1779 User Manual
GETTING STARTED GUIDE
Cisco Aironet 4800 Series Access Points
First Published: Apr 13, 2018
Cisco Systems, Inc. www.cisco.com
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Cisco Aironet 4800 Series Access Points
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE
WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO
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The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits
for a Class A 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 commercial environment. This equipment generates, u ses, and can radiate radio-frequency
energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to correct the
interference at their own expense.
The following information is for FCC compliance of Class B devices: This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installatio n. If the equipment caus es interference to radio or television reception, which can be determined
by turning the equipment off and on, users are encouraged to try to correct the interference by using one or more of the following measures:
■ Reorient or relocate the receiving antenna.
■ Increase the separation between the equipment and receiver.
■ Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
■ Consult the dealer or an experienced radio/TV technician for help.
Modifications to this product not authorized by Cisco could void the FCC approval and negate your authority to operate the product.
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(UCB) as part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.
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Cisco Aironet 4800 Series Access Points
1 About this Guide
2 About the Access Point
3 Safety Instructions
4 Unpacking
5 AP Views, Ports, and Connectors
6 Preparing the AP for Installation
7 Installation Overview
8 Performing a Pre-Installation Configuration
9 Mounting and Grounding the Access Point
10 Powering the Access Point
11 Configuring and Deploying the Access Point
12 Checking the Access Point LEDs
13 Miscellaneous Usage and Configuration Guidelines
15 Related Documentation
16 Declarations of Conformity and Regulatory Information
17 Obtain Documentation and Submit a Service Request
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Cisco Aironet 4800 Series Access Points
1 About this Guide
This guide provides instructions on how to install your Cisco Aironet 4800 series access points and provides links to resources which can
help you configure the access point. This guide provides mounting instructions and limited troubleshooting procedures.
The 4800 series access point is referred to as access point or AP in this document.
2 About the Access Point
The Cisco Aironet 4800 Series wireless access points provide 802.11ac Wave 2 with Multi User MIMO (MU MIMO). This AP series offers
integrated antenna options, with a dedicated 5 GHz radio and a flexible radio that can be configured as a 2.4 GHz radio (default) or as an
additional 5 GHz radio. In addition to this flexible (client serving) radio, there is a second flexible radio specifically for hyperlocation,
analytics, and monitoring. This AP supports a greater overall High Density Experience (HDX) which provides mission-critical wireless to
meet your performance needs. The AP supports full interoperability with leading 802.11ac clients, and supports a mixed deployment with
other APs and controllers.
A full listing of the access point's features and specification are provided in the Cisco Aironet 4800 Series Access Point Data Sheet, at the
following URL:
<CCO URL to be added at FCS>
Access Point Features
The 4800 series access point is a wireless controller-based product and supports:
Integrated antennas including built-in Hyperlocation antenna array containing 16 antenna elements designed for angle-of-arrival
(AoA) technology, capable of <3 m location accuracy on Wi-Fi.
Note The ‘x’ in the model numbers represents the regulatory domain. For information on supported regulatory
domains, see the“AP Model Numbers and Regulatory Domains” section on page 6.
Three radios, where two are standard and the third is a listen-only, 0x4 radio. The third radio in listen-only mode allows the AP to
perform analytics, Hyperlocation, and Wireless Security Monitoring (WIPS and WIDS) while the two primary radios continue to serve
clients.
Flexible Radio Assignment, allowing for either manual configuration or for the APs to intelligently determine the operating role of the
integrated radios based on the available RF environment. The AP can operate in the following modes:
— 2.4 GHz and 5 GHz role, where one radio serves clients in 2.4 GHz mode, while the other serves clients in 5 GHz mode.
— Dual 5 GHz radio with both radios operating in the 5 GHz band, actively serving client devices to maximize the benefits of
802.11ac Wave 2 and to increase client device capacity.
— Wireless Security Monitoring an d 5 GHz role, where on e radio serves 5 GHz clients, while the other radio scans both 2.4 GHz
and 5 GHz for wIPS attackers, CleanAir interferers, and rogue devices.
Multigigabit Ethernet (mGig) support providing multiple Gigabit uplink speeds of 2.5 Gbps and 5 Gbps in addition to 100 Mbps and
1 Gbps speeds. All speeds are supported on Category 5e cabling, as well as 10GBASE-T cabling.
Multiuser Multiple-Input Multiple-Output (MU-MIMO) technology with 3 spatial streams.
MIMO equalization capabilities, which optimize uplink performance and reliability by reducing the impact of signal fade.
Cross-AP Noise Reduction, a Cisco innovation that enables APs to intelligently collaborate in real time about RF conditions so that
users connect with optimized signal quality and performance.
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Cisco Aironet 4800 Series Access Points
Optimized AP Roaming for ensuring that client devices associate with the AP in their coverage range that offers the fastest data rate
available.
Cisco CleanAir technology enhanced with 160MHz channel support. CleanAir delivers proactive, high-speed spectrum intelligence
across 20-, 40-, and 80-, and 160-MHz-wide channels to combat performance problems arising from wireless interference.
Analytics capabilities providing event-driven real-time data captures with real-time visibility into Cisco DNA Center and potential
third party analytics
Advanced location features
Built-in BLE radio capable of BLE TX/RX
Built-in compass to assist CMX/Cisco Prime Infrastructure
Cisco Prime Infrastructure support to address full location planning and serviceability tool as well as additional Hyperlocation mapping
enhancements
The AP supports the following operating modes:
Local—This is the default mode for the Cisco AP. In this mode, the AP does not serve clients.
Flexconnect—Flexconnect mode for the Cisco AP.
Monitor—This is the monitor-only mode for the Cisco AP.
SE-connect—Spectrum expert-only connect mode allows the AP to perform spectrum intelligence.
Sensor—Sensor mode for the Cisco AP.
Note The AP can only be configured to Sensor mode if it is an external antenna AP with no DART connected.
However, for external antenna APs with DAR T connected or internal antenna APs, only the dual-band radio can
be set to Sensor role. The dual-band radio can operate as a sensor on both the 2.4 GHz a nd 5 GH z bands. This
allows the other radio to serve clients or perform other operations on 5 GHz.
Sniffer—In the wireless sniffer mode, the AP starts sniffing the air on a given channel. It captures and forwards all the packets from
the clients on that channel to a remote machine that runs Airopeek or W ir eshark (packet analyzers for IEEE 802.11 wireless LANs).
This includes information on the time stamp, signal strength, packet size, etc.
Note In the sniffer mode, the server to which the data is sent should be on the same VLAN as the wireless controller
management VLAN otherwise an error will be displayed.
Security—Security mode for the Cisco AP.
Hyperlocation—Hyperlocation mode for the Cisco AP.
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Cisco Aironet 4800 Series Access Points
AP Model Numbers and Regulatory Domains
AP Type Model Number Details
Access Point for indoor environments,
with internal antennas
You need to verify whether the AP model you have is approved for use in your country. To verify approval and to identify the regulatory
domain that corresponds to a particular country, visit http://www.cisco.com/go/aironet/compliance. Not all regulatory domains have been
approved. As and when they are approved, this compliance list will be updated.
AIR-AP4800-x-K9 Dual-band, controller-based
AIR-AP4800-x-K9C
AIR-AP4800-B-K9++
802.11a/g/n/ac
Antennas and Radios
The 4800 series access point contains a dedicated 5 GHz radio and a flexible radio that can be configured as a 2.4 GHz radio (default) or as
an additional 5 GHz radio. The 4800 series access point configurations are:
AIR-AP4800-x-K9—One 2.4 GHz/5 GHz flexible radio, one 5 GHz radio, and one special analytics radio.
AIR-AP4800-x-K9C—One 2.4 GHz/5 GHz flexible radio, one 5 GHz radio, and one special analytics radio.
AIR-AP4800-B-K9++—One 2.4 GHz/5 GHz flexible radio, one 5 GHz radio, and one special analytics radio.
Internal Antennas
The 4800 series access point has 25 integrated antennas that perform the following functions:
• Four dual ban d 2.4/5 GHz (macro-cell) antennas for wide are client coverage
• Four single ban d 5 GHz (micro-cell) antennas for High Density and dual 5 GHz client coverage
• One Blu etooth antenna used for bea coning
The 16 element antenna array (below) handles the BLE on receive.
• One 16 ele ment antenna arra y (dual and single band ante nnas) used for WLAN analytics, cl ient location, Wireless
Security Monitoring, and Hyperlocation
These antennas are dynamically switched in and out depending upon the modes being used.
3 Safety Instructions
Translated versions of the following safety warnings are provided in the translated safety warnings document that is shipped with your
access point. The translated warnings are also in the Translated Safety Warnings for Cisc o Aironet Access Points, which is available on
Cisco.com.
Warning
IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger. You are in a situation that could cause bodily injury. Before
you work on any equipment, be aware of the hazards involved with electrical circuitry and be
familiar with standard practices for preventing accidents. Use the statement number provided at
the end of each warning to locate its translation in the translated safety warnings that accompanied
this device.
SAVE THESE INSTRUCTIONS
Statement 1071
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Cisco Aironet 4800 Series Access Points
Warning
Warning
Warning
Warning
Warning
Caution The fasteners you use to mount an access point on a ceiling must be capable of maintaining a minimum pul lout
Read the installation instructions before you connect the system to its power source.
Installation of the equipment must comply with local and national electrical codes.
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure
that the protective device is rated not greater than:
20A.
Statement 1005
Do not operate your wireless network device near unshielded blasting caps or in an explosive
environment unless the device has been modified to be especially qualified for such use.
245B
In order to comply with FCC radio frequency (RF) exposure limits, antennas should be located at
a minimum of 12 inches (30 cm) or more from the body of all persons.
Statement 332
force of 20 lbs (9 kg) each and must use a minimum of four holes on the mounting bracket.
Statement 1004
Statement 1074
Statement
Caution This product and all interconnected equipment must be installed indoors within the same building, including the
associated LAN connections as defined by Environment A of the IEEE 802.af Standard.
Note The access point is suitable for use in environmental air space in accordance with section 300.22.C of the Nationa l
Electrical Code and sections 2-128, 12-010(3), and 12-100 of the Canadian Electrical Code, Part 1, C22.1. Y ou should
not install the power supply or power injector in air handling spaces.
Note Use only with listed ITE equipment.
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Cisco Aironet 4800 Series Access Points
354563
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4 Unpacking
To unpack the access point, follow these steps:
Step 1 Unpack and remove the access point and the acc essory kit from the shipping box.
Step 2 Return any packing material to the shi pping c ontainer a nd save it for future use.
Step 3 Verify that you have rec eived the items listed below. If any item is missing or damaged, contact your Cisco
representative or reseller for instructions.
— The access point
— Mounting bracket (selected when you ordered the access point)
— Adjustable ceiling-rail clip (selected when you ordered the access point)
5 AP Views, Ports, and Connectors
Figure 1 Face of the AP
Status LED
1
Location of the ports and connectors on the head of the AP
2
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Cisco Aironet 4800 Series Access Points
354564
1 2 3 4 5 6 7
The ports and connections on the bottom of the access point are shown in Figure 2.
Figure 2 Ports and Connections on the Head of the AP
Kensington lock slot
1
Mode button
2
Console port
3
USB port
4
AUX / Gigabit Ethernet port
5
PoE / mGig port
6
48 VDC power port
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6 Preparing the AP for Installation
Before you mount and deploy your access point, we recommend that you perform a site survey (or use the site planning tool) to determine
the best location to install your access point.
You should have the following information about your wireless network available:
Access point locations.
Access point mounting options: below a suspended ceiling or on a flat horizontal surface.
Note Y ou can mount the access point above a suspended ceiling but you must purchase additional mounting hardware:
See “Mounting and Grounding the Access Point” section on page 13 for addition al information.
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Cisco Aironet 4800 Series Access Points
Access point power options: PoE+ via powered switch, mid-span, or power injector (usually located in a wiring closet). If PoE+ is not
available, this access point may be powered by a local DC power supply (Cisco AIR-PWR-C).
Note When the access point is located above the ceiling tiles (in the building’s environmental airspace, also known as plenum)
care must be taken to ensure the power supply , or power injector if used, is not co-located in the building’s plenum airspace.
This may not be in compliance with local safety regulations.
Cisco recommends that you make a site map showing access point locations so that you can record the device MAC addresses from each
location and return them to the person who is planning or managing your wireless network.
7 Installation Overview
Installing the access point involves these operations:
Step 1 Performing a Pre-Installation Configuration, page 10 (optional)
Step 2 Mounting and Grounding the Access Point, page 13
Step 3 Powering the Access Point, page 15
Step 4 Preparing the AP for Installation, page 9
8 Performing a Pre-Installation Configuration
The following procedures ensure that your access point installation and initial operation go as expected. This procedure is optional.
Note Performing a pre-installation configuration is an optional procedure. If your network controller is properly
configured, you can install your access point in its final location and connec t it to the network from there. See the
“Deploying the Access Point on the Wireless Network” section on page 17 for details.
The following pre-installation configuration procedure does not include configuring Link Aggregation or configuration via Cisco Mobility
Express.
Note • For information on configuring Link Aggregation, see the Cisco Wireless LAN Controller Configuration Guide,
Release 8.6, at this URL:
https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-6/config-guide/b_cg86/ports_and_interfaces.html#ID1466
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Cisco Aironet 4800 Series Access Points
Controller
Layer 3
devices
Cisco Aironet
access points
354066
Link Aggregation Link Aggregation
The pre-installation configuration setup is illustrated in Figure3.
Figure 3 Pre-Installation Configuration Setup
To per form pre-installation configuration, perform the following steps:
Step 1 Make sure that the Cisco Wireless LAN Controller DS port is connected to the network. Use the CLI, web-browser
interface, or Cisco Prime Infrastructure procedures as described in the appropriate Cisco Wireless LAN Controller
Configuration guide.
a. Make sure that access points have Layer 3 connectivity to the Cisco Wireless LAN Controller Management and
AP-Manager Interface.
b. Configure the switch to which your access point is to attach. See the Cisco Wireless LAN Controller Configuration
Guide for the release you are using, for additional information.
c. Set the Cisco Wireless LAN Controller as the master so that new access points always join with it.
d. Make sure DHCP is enabled on the network. The access point must receive its IP address through DHCP.
e. CAPWAP UDP ports must not be blocked in the network.
f. The access point must be able to find the IP address of the controller. This can be accomplished using DHCP, DNS,
or IP subnet broadcast. This guide describes the DHCP method to convey the controller IP address. For other methods,
refer to the product documentation. See also the “Configuring DHCP Option 43” section on page 20 for more
information.
Step 2 Apply power to the access point. See Powering the Access Point, page 15.
a. As the access point attempts to connect to the controller, the LEDs cycle through a green, red, and amber sequence,
which can take up to 5 minutes.
Note If the access point remains in this mode for more than five minutes, the access point is unable to find the Master
Cisco Wireless LAN Controller. Check the connection between the access point and the Cisco Wireless LAN
Controller and be sure that they are on the same subnet.
b. If the access point shuts down, check the power source.
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