Cisco Systems 102095 Users Manual

GETTING STARTED GUIDE

Cisco Aironet 1850 Series Access Points

First Published: April 29, 2015

1About this Guide

2Introduction to the Access Point

3Safety Instructions

4Unpacking

5Configurations

5Access Point Ports and Connectors

6Preparing the Access Point for Installation

7Installation Overview

8Performing a Pre-Installation Configuration

9Mounting and Grounding the Access Point

10Powering the Access Point

11Configuring and Deploying the Access Point

12Troubleshooting

13Checking the Access Point LEDs

14Declarations of Conformity and Regulatory Information

15Configuring DHCP Option 43

16Access Point Specifications

1 About this Guide

This Guide provides instructions on how to install and configure your Cisco Aironet 1850 Series Access Point. This guide also provides mounting instructions and limited troubleshooting procedures.

The 1850 Series Access Point is referred to as the access point in this document.

2 Introduction to the Access Point

The Cisco Aironet 1850 series access point is an 802.11 a/b/g/n/ac (Wave 2) access point, with both external antenna (AP1852E) and internal antenna (AP1852I) models. These access points can be mounted on a wall or a ceiling, and supports 2.4 GHz 3x4 802.11b/g/n MIMO and 5 GHz 4x4 802.11 a/n/ac (Wave 2) MIMO applications simultaneously.

Access Point Model Numbers and Regulatory Domains

The Cisco Aironet 1850 series access point comes in both universal regulatory domain and non-universal regulatory domain model number formats. See the following table for the model number formats.

	Universal Regulatory Domain	NonUniversal Regulatory
	Model Number Format	Domain Model Number Format

External antenna models	AIR-AP1852E-UXK9	AIR-AP1852E-x-K9

Internal antenna models	AIR-AP1852I-UXK9	AIR-AP1852I-x-K9

The ‘UX’ in a model number indicates a universal regulatory domain access point. For information on how to set the regulatory domain and country configurations of a universal regulatory domain access point, see the Cisco Aironet Universal AP Priming and Cisco AirProvision User Guide, at: http://www.cisco.com/c/en/us/td/docs/wireless/access_point/ux-ap/guide/uxap-mobapp-g.html

The ‘x’ placeholder in the other model numbers represents the regulatory domain. The ‘x’ can be any one of these supported regulatory domains: A, B, C, D, E, F, H, I, K, N, Q, R, S, T, Z.

Access Point Features

The features of the 1850 series access points are:

•Supported mode of operation are:

–Centralized

–Sniffer

•Radio features supported are:

–2.4 GHz and 5 GHz concurrent radios

–2 GHz radio with 3TX x 4RX and three spatial streams SU-MIMO

–5 GHz radio with 4TX x 4RX 802.11ac Wave 2 capable with four spatial stream SU-MIMO and 3 spatial streams MU-MIMO

–802.11ac based Transmit Beamforming

–QOS

–RRM

–Rogue Detection

–BandSelect

•The AP supports the following hardware external interfaces:

–RS-232 Console Interface through RJ-45

–Local Power DC Jack

–Recovery push button (enables partial or full system configuration recovery)

–USB 2.0 Port (Disabled, but present for future support)

–One multi-color LED status indicator. See () for information on the colors of the LED status indicator.

–1 x 10/100/1000 Mbps WAN Ethernet Port (RJ-45), PoE

–1 x 10/100/1000 Mbps Auxiliary Ethernet port (RJ-45) (No PoE)

•1852I model access point has 4 integrated 2.4 GHz/5 GHz dual-band antennas located near each corner of the 1852I access point under the top housing. Peak antenna gain is approximately 3 dBi and 5 dBi in 2.4 GHz and 5 GHz bands respectively.

•The 1852E model supports up to four external antennas using the RTNC antenna connectors on the top of the access point. The following Cisco external antennas are supported on the 1852E:

–AIR-ANT2524DB-R

–AIR-ANT2524DG-R

–AIR-ANT2524DW-R

–AIR-ANT2535SDW-R

–AIR-ANT2524V4C-R

–AIR-ANT2566P4W-R

–AIR-ANT2544V4M-R

A full listing of the access point's features and specification are provided in the Cisco Aironet 1850 Series Access Point Data Sheet, at the following URL:

(URL to be added when available)

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 Cisco 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. Statement 1071

		SAVE THESE INSTRUCTIONS

Warning

Caution

Read the installation instructions before you connect the system to its power source.

Statement 1004

Installation of the equipment must comply with local and national electrical codes.

Statement 1074

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. Statement 245B

The fasteners you use to mount an access point on a ceiling must be capable of maintaining a minimum pullout force of 20 lbs (9 kg) and must use a minimum of 4 holes on the mounting bracket, or a minimum of 2 holes when mounting on a network box.

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 802.3af/at Standard.

Note The access point is suitable for use in environmental air space in accordance with section 300.22.C of the National Electrical Code and sections 2-128, 12-010(3), and 12-100 of the Canadian Electrical Code, Part 1, C22.1. You should not install the power supply or power injector in air handling spaces.

Note Use only with listed Information Technology Equipment (ITE) equipment. For more information on ITE equipment, refer to article 645 of the latest National Electrical Code (NEC).

4 Unpacking

To unpack the access point, follow these steps:

Step 1 Unpack and remove the access point and the mounting accessories and antennas, if included for external antenna model access points, from the shipping box.

Step 2 Return any packing material to the shipping container and save it for future use.

Step 3 Verify that you have received the items listed below. If any item is missing or damaged, contact your Cisco representative or reseller for instructions.

–The access point

–Mounting bracket (AIR-AP-BRACKET-1= or AIR-AP-BRACKET-2=, only if selected when you ordered the access point)

–T-RAIL clips and Channel Adapter (only if selected when you ordered the access point)

5 Access Point Ports and Connectors

The 1850 series access points have an LED indicator on the face of the unit, above the Cisco logo, as shown in Figure 1.

Figure 1 Access Point LED Indicator Position on both

1 LED indicator

The ports and connections on the access point are shown in Figure 2.

Figure 2 Access Point Ports and Connections

						353813
1	2	3	4	5	6	7

1	Security hasp for padlocking AP to mounting	5	Auxiliary port
	bracket

2	Mode (Reset) button	6	PoE In port (Ethernet Uplink port)

3	RJ-45 console port	7	48 V DC input power port

4	USB 2.0 port

6 Preparing the Access Point 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, on a flat horizontal surface, or on a desktop.

Note You 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 additional information.

•Access point power options: power supplied by the recommended external power supply (Cisco AIR-PWR-C), a DC power supply, PoE from a network device, or a PoE power injector/hub (usually located in a wiring closet).

Note Access points mounted in a building’s environmental airspace must be powered using PoE to comply with 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 11 (optional)

Step 2 Mounting and Grounding the Access Point, page 13

Step 3 Powering the Access Point, page 14

Step 4 Configuring and Deploying the Access Point, page 16

8 Performing a Pre-Installation Configuration

The following procedures ensure that your access point installation and initial operation go as expected. A pre-installation configuration is also known as priming the access point. 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 connect it to the network from there. See the “Deploying the Access Point on the Wireless Network” section on page 18 for details.

Pre-Installation Configuration Setup

The pre-installation configuration setup is shown in Figure 3.

Figure 3 Pre-Installation Configuration Setup

Controller

Layer 3 devices

Cisco Aironet access points

272488

To perform 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 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 “Using DHCP Option 43” section on page 19 for more information.

Note The access point requires a gigabit Ethernet (GbE) link to prevent the Ethernet port from becoming a bottleneck for traffic because wireless traffic speeds exceed transmit speeds of a 10/100 Ethernet port.

Step 2 Apply power to the access point. See Powering the Access Point, page 14.

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.

c.After the access point finds the Cisco wireless LAN controller, it attempts to download the new operating system code if the access point code version differs from the Cisco wireless LAN controller code version. While this is happening, the Status LED blinks amber.

d.If the operating system download is successful, the access point reboots.

Step 3 Configure the access point if required. Use the controller CLI, controller GUI, or Cisco Prime Infrastructure to customize the access-point-specific 802.11ac network settings.

Step 4 If the pre-installation configuration is successful, the Status LED is green indicating normal operation. Disconnect the access point and mount it at the location at which you intend to deploy it on the wireless network.

Step 5 If your access point does not indicate normal operation, turn it off and repeat the pre-installation configuration.

Note When you are installing a Layer 3 access point on a different subnet than the Cisco wireless LAN controller, be sure that a DHCP server is reachable from the subnet on which you will be installing the access point, and that the subnet has a route back to the Cisco wireless LAN controller. Also be sure that the route back to the Cisco wireless LAN controller has destination UDP ports 5246 and 5247 open for CAPWAP communications. Ensure that the route back to the primary, secondary, and tertiary wireless LAN controller allows IP packet fragments. Finally, be sure that if address translation is used, that the access point and the Cisco wireless LAN controller have a static 1-to-1 NAT to an outside address. (Port Address Translation is not supported.)

9 Mounting and Grounding the Access Point

Cisco Aironet 1852 series access points can be mounted in several configurations – on a suspended ceiling, on a hard ceiling or wall, on an electrical or network box, and above a suspended ceiling.

Go to the following URL for access point mounting instructions:

http://www.cisco.com/c/en/us/td/docs/wireless/access_point/mounting/guide/apmount.html

10 Powering the Access Point

The AP can be powered using:

•48 V DC power via the 48VDC port, using Cisco Power Adapter AC DC AIR-PWR-C=. Ensure that the power cable is routed through the strain relief retention clips cast into the enclosure. See Figure 4.

•Power-over-Ethernet (PoE) from the Ethernet cable, from an external power source such as the Cisco Power Injector AIR-PWRINJ4=.You can also use the AIR-PWRINJ5 Cisco Power Injector but with reduced functionality.

•Any 802.3at (25.5 W) or 802.3af (15.4 W) compliant power injector.

However, when powered by an 802.3af compliant power injector, the access point capabilities will be reduced to 2x2 with 2 spatial streams for the 2.4GHz radio, 3x3 with 3 spatial streams for the 5GHz radio and the USB port and Auxiliary Ethernet port will also be disabled. With 802.3at compliant devices the AP provides full operation including the USB port and Auxiliary Ethernet port.

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