Cisco Catalyst 9120AX Series Bedienungsanleitung

Cisco Systems, Inc. www.cisco.com

GETTING STARTED GUIDE

Cisco Catalyst 9120AX Series Access

Points

First Published: June 21, 2019

Last Updated: July 04, 2019

Cisco Catalyst 9120AX Series Access Points

1About this Guide

2About the Access Point

3Safety Instructions

4Unpacking

5AP Views, Ports, and Connectors

6Preparing the AP for Installation

7Installation Overview

8Performing a Pre-Installation Configuration

9Mounting 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

Communications, Services, and Additional Information

Cisco Bug Search Tool

Cisco Catalyst 9120AX Series Access Points

1 About this Guide

This guide provides instructions on how to install your Cisco Catalyst 9120AX 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 9120AX series access point is referred to as access point or AP in this document.

2 About the Access Point

The Cisco Catalyst 9120AX series wireless access point is a dual band, dual concurrent, enterprise 802.11ax (Wi-Fi 6)

AP. This AP series has integrated antennas designed to use both 2.4 GHz and the 5 GHz bands. This access point

supports a greater overall High Density Experience (HDX) which provides a more predictable performance for advanced

applications such as 4K or 8K video, high-density and high-definition collaboration applications, all-wireless offices and

Internet-of-Things (IoT). The access point supports full interoperability with leading 802.11ax and 802.11ac clients, and

supports a mixed deployment with other access points and controllers. These APs provide integrated security, resiliency

and operational flexibility as well as increased network intelligence.

A full listing of the access point's features and specifications are provided in the Cisco Catalyst 9120AX Series Access

Point Data Sheet, at the following URL:

https://www.cisco.com/c/en/us/products/collateral/wireless/catalyst-9120ax-series-access-points/datasheet-c78-7

42115.html

Access Point Features

The 9120AX series access point is a wireless controller-based product and supports:

Four dual-band integrated antennas on the 9120AXI access point models (C9120AXI-x and C9120AXI-ME-x)

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 5.

Integrated internal antennas, omni directional in azimuth for both 2.4 GHz and 5 GHz

Four radios, a dual band radio with 2.4 GHz (peak gain 4dBi) and 4x4 5 GHz (peak gain 5dBi), a single band 5 GHz

(peak gain 5dBi), an omni IoT radio 2.4 GHz (peak gain 3dBi) that can be used with BLE, Zigbee, Thread and other

multi-protocol 802.15.4 devices, and an auxiliary radio with 2.4 GHz (peak gain 3dBi) and 5 GHz (peak gain 5dBi)

Simultaneous 4x4 MIMO with four spatial streams for both 2.4 GHz and 5 GHz bands

Multiuser Multiple-Input Multiple-Output (MU-MIMO) technology with 4 spatial streams for downlink.

Orthogonal Frequency Division Multiple Access (OFDMA)-based scheduling for both downlink and uplink

The following hardware external interfaces:

—1x100/1000/2500 Multigigabit Ethernet (RJ-45)

—RS-232 Console Interface through RJ-45

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

—USB 2.0 Port

Cisco Catalyst 9120AX Series Access Points

—One multi-color LED Status indicator. see the “Checking the Access Point LEDs” section on page 14 for

information on the colors of the LED status indicator.

Integrated Bluetooth Low Energy (BLE) radio to enable IoT use cases such as location tracking and wayfinding.

Cisco RF ASIC, a fully integrated Software Defined Radio (SDR), that can perform advanced RF spectrum analysis

and delivers features like CleanAir, Wireless Intrusion Prevention System (WIPS), and DFS detection.

Intelligent Capture probes the network and provides Cisco DNA Center with deep analysis.

Spatial Reuse (also known as Basic Service Set (BSS) coloring) which allows APs and their clients to differentiate

between BSSs, thus permitting more simultaneous transmissions.

New power savings mode called Target Wake Time (TWT) which allows the client to stay asleep and wake up only

at pre-scheduled (target) times to exchange data with the AP. This provides significant energy savings for

battery-operated devices.

Cisco Digital Network Architecture (DNA) support enables Cisco Connected Mobile Experiences, Apple FastLane

and Cisco Identity Services Engine.

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.

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.

MIMO equalization capabilities, which optimize uplink performance and reliability by reducing the impact of signal

fade.

The AP supports the following operating modes:

Local—This is the default mode for the Cisco AP. In this mode, the AP serves clients.

FlexConnect—FlexConnect mode for the Cisco AP.

Monitor—This is the monitor-only mode for the Cisco AP.

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 Wireshark (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.

Guidelines and Restrictions for Cisco 802.11ax Access Points

The APs do not support Mobility Express on Cisco AireOS or Cisco IOS-XE platforms.

Cisco Catalyst 9120AX Series Access Points

AP Model Numbers and Regulatory Domains

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.

Antennas and Radios

The 9120AX series access point has four internal dual-band antennas with a dedicated 2.4 GHz radio and a 5 GHz radio,

four internal single-band antennas with a dedicated 5 GHz radio, one internal single-band antenna with a dedicated

2.4 GHz IOT radio, and one dual-band antenna with a dedicated 2.4 GHz radio and a 5 GHz AUX radio.

The access point configurations are:

C9120AXI-x—Four radios, a dual band radio with 2.4 GHz (peak gain 4dBi) and 4x4 5 GHz (peak gain 5dBi), a single

band 5 GHz (peak gain 5dBi), an omni IoT radio 2.4 GHz (peak gain 3dBi) that can be used with BLE, Zigbee, Thread

and other multi-protocol 802.15.4 devices, and an auxiliary radio with 2.4 GHz (peak gain 3dBi) and 5 GHz (peak

gain 5dBi).

C9120AXI-ME-x—Four radios, a dual band radio with 2.4 GHz (peak gain 4dBi) and 4x4 5 GHz (peak gain 5dBi), a

single band 5 GHz (peak gain 5dBi), an omni IoT radio 2.4 GHz (peak gain 3dBi) that can be used with BLE, Zigbee,

Thread and other multi-protocol 802.15.4 devices, and an auxiliary radio with 2.4 GHz (peak gain 3dBi) and 5 GHz

(peak gain 5dBi).

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 Catalyst

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

Warning

Read the installation instructions before using, installing or connecting the system to the power source.

Statement 1004

AP Type Model Number Details

Access Point for indoor

environments, with internal

antennas

C9120AXI-xDual-band, controller-based 802.11ax

C9120AXI-ME-xDual-band, 802.11ax with a Cisco Mobility

Express software image

Cisco Catalyst 9120AX Series Access Points

Warning

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

Statement 1074

Warning

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

Warning

Ultimate disposal of this product should be handled according to all national laws and regulations.

Statement 1040

Warning

The access point, antennas, and all interconnected equipment including the associated LAN

connections must be located indoors within the same building.

Statement 375

Warning

This equipment is suitable for use in environment air spaces (plenums) 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, CSA C22.2. External power supply, power adapter and/or power injector, if

provided, are not suitable for installation in air spaces.

Statement 440

4 Unpacking

To unpack the access point, follow these steps:

Step 1 Unpack and remove the access point and the accessory kit 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=, selected when you ordered the access point)

—Adjustable ceiling-rail clip (selected when you ordered the access point)

—Power Injector AIR-PWRINJ6= (only if selected when you ordered the access point).

Cisco Catalyst 9120AX Series Access Points

5 AP Views, Ports, and Connectors

Figure 1 Face of the 9120AXI Model

1Status LED 3USB 2.0 port

2Location of the ports and connectors on the

head of the AP.

Cisco Catalyst 9120AX Series Access Points

Figure 2 Ports and Connectors on the Head of the 9120AXI Model

12.5GbE port 4Mode button

2RJ-45 console port

Security hasp for padlocking AP to mounting

bracket

3USB 2.0 port.

Cisco Catalyst 9120AX Series Access Points

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, on a flat horizontal surface, or on a desk top.

Note You can mount the access point above a suspended ceiling but you must purchase additional mounting

hardware: See “Mounting the Access Point” section on page 12 for additional information.

Access point power options: 802.3at (PoE+) (Cisco Power Injector AIR-PWRINJ6=) or 802.3af (Cisco Power Injector

AIR-PWRINJ5=).

Note If 802.3af is used, both the 2.4 GHz and 5 GHz radios will be reduced to 1x1 and Ethernet will be

downgraded to 1 GbE. The USB port will also be off.

Operating temperature: 32°—122°F (0°—50°C)

Note When installing the access point in an environment where the ambient temperature is in the range of

104°—122°F (>40°—50°C), the access point must be configured to 2x2 on both the 2.4 GHz and 5 GHz

radios, 1GbE Ethernet. Also, there should be no load on the USB port.

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 the Access Point, page 12

Step 3 Powering the Access Point, page 13

Step 4 Preparing the AP for Installation, page 9

Cisco Catalyst 9120AX Series Access Points

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 connect it to the network from there.

See the “Deploying the Access Point on the Wireless Network” section on page 14 for details.

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

Figure 3 Pre-Installation Configuration Setup

To perform pre-installation configuration, perform the following steps:

Step 1 Make sure that the Cisco Wireless Controller DS port is connected to the network. Use the procedure for CLI

or web-browser interface as described in the appropriate Cisco Wireless Controller guide.

a. Make sure that access points have Layer 3 connectivity to the Cisco Wireless Controller Management and

AP-Manager Interface.

b. Configure the switch to which your access point is to attach. See the Cisco Wireless Controller Configuration

Guide for the release you are using, for additional information.

c. Set the Cisco Wireless Controller as the master so that new access points always join with it.

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