Thiết bị wifi Cisco CW9166

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Figure 1.               
Catalyst 9166 access point

With the flexibility to choose between cloud- and on-premises management, the Catalyst 9166 Series Access Point ensures network investment protection and unlocks the power of hybrid work. The Wi-Fi 6E-compliant access point takes advantage of the 6-GHz band expansion to produce a network that is more reliable and secure, with higher throughput, more capacity, and less device interference. The access points come with three 4x4 radios and provide a host of cutting-edge features.

With the industry’s leading on-premises network platform (Catalyst) joining the industry’s leading cloud IT platform (Meraki), this access point provides an unparalleled network experience. For organizations that need solutions to power hybrid work, and that allow their people to work anywhere at any given time with elevated, secure, and connected experiences, the Cisco Catalyst 9166 Series Access Points are the best choice.

Operational management is not static, as customers are able to change their network management whenever they want. If a network with Cisco Catalyst 9166 Series Access Points was originally an on-premises deployment, it can be changed to cloud-based management without the need to purchase and redistribute additional hardware.




Wi-Fi 6 and Wi-Fi 6E (802.11ax)

The IEEE 802.11ax standard, also known as High-Efficiency Wireless (HEW) or Wi-Fi 6, builds on 802.11ac. It delivers a better experience in typical environments with more predictable performance for advanced applications such as 4K or 8K video; high-density, high-definition collaboration apps; all-wireless offices; and the Internet of Things (IoT). Wi-Fi 6E is Wi-Fi 6 “extended” into the 6-GHz frequency band.

XOR radio

The dual-band XOR radio in the Catalyst 9166 Series enables shifting capacity between 6 GHz and a secondary 5-GHz radio.

Environmental sensors

These built-in sensors measure air quality (total volatile organic compounds [TVOC]), temperature, and humidity, and help ensure a safe working environment, avoiding the need to install an overlay of difficult-to-manage independent sensors.

Zero Wait DFS

Allows for continuous monitoring of DFS channels for radar events thus enabling faster channel changes when needed. This enables RRM to minimize client distribution and maximize operational readiness.

(Available fall 2022)

AP power optimizations
(AP Power Save Mode)

AP Power optimizations (AP Power save mode) allows the access point to reduce its power consumption by e.g. shutting off radios during off-hours and weekends – whilst still being smart enough to re-engage all features should they be needed. This both saves power and reduces the carbon footprint of running a wireless network.

CleanAir Pro

CleanAir Pro extends Cisco’s industry leading RF Interference detection and classification into the 6 GHz band.

Band steering

Enhanced to help clients that are 6-GHz capable to leave the 5-GHz radio and connect to the 6-GHz one. Wi-Fi 6E clients are automatically directed to connect to the 6-GHz radio to take advantage of the benefits it offers and free up the 2.4- and 5-GHz radios for legacy clients.

Uplink/downlink OFDMA

Orthogonal Frequency-Division Multiple Access (OFDMA)-based scheduling splits the bandwidth into smaller frequency allocations called Resource Units (RUs), which can be assigned to individual clients in both the downlink and uplink directions to reduce overhead and latency.

Uplink/downlink MU‑MIMO technology

Supporting the highest number with 12 spatial streams, multiuser multiple input, multiple output (MU-MIMO) enables the access points to split spatial streams between client devices to maximize throughput.

BSS coloring

Spatial reuse (also known as Basic Service Set [BSS] coloring) allows the access points and their clients to differentiate between BSSs, thus permitting more simultaneous transmissions.

Target Wake Time

Target Wake Time (TWT) allows the client to stay asleep and to wake up only at prescheduled (target) times to exchange data with the access point. This offers significant energy savings for battery-operated devices, up to three to four times the savings achieved by 802.11n and 802.11ac.

Intelligent Capture

Intelligent Capture probes the network and provides Cisco DNA Center with deep analysis. The software can track more than 240 anomalies and instantaneously review all packets on demand, emulating the onsite network administrator. Intelligent Capture allows for more informed decisions on your wireless networks.

Application hosting

Application hosting helps simplify IoT deployments and ready them for the future by eliminating the need to install and manage overlay networks. Using the USB interface, containerized applications and hardware modules can be deployed to reduce cost and complexity. Adding Cisco DNA Center provides workflows and deployment-wide application lifecycle management.

Bluetooth 5.1

The integrated Bluetooth Low Energy (BLE) 5.1 radio enables location-based use cases such as asset tracking, wayfinding, and analytics.

Container support for applications

Container support enables edge computing capabilities for IoT applications on the host access point.

Choice of persona

Cisco Catalyst 9166 Series Access Points can be managed either on-premises with Catalyst 9800 Wireless Lan Controllers (WLC) or cloud-managed through the Meraki dashboard. Customers have the flexibility to deploy these access points in one persona and shift to a different persona in the future.





Part numbers

Cisco Catalyst access points

●  CW9166I-x: Cisco Catalyst 9166 Series

Regulatory domains: (x = regulatory domain)

Customers are responsible for verifying approval for use in their individual countries. To verify approval and to identify the regulatory domain that corresponds to a particular country, visit

Not all regulatory domains have been approved. As they are approved, the part numbers will be available on the Global Price List and/or regional price lists.

●  CW9166I-MR: Cisco Catalyst 9166 Series, w/Meraki

Cloud-managed version using Meraki Dashboard

Cisco wireless LAN services

●  For details on optional WLAN Services, visit Services for Wireless and Mobility


Catalyst 9166I

●  Cisco IOS ® XE Software Release 17.9.1 or later

Supported wireless LAN controllers

●  Cisco Catalyst 9800 Series Wireless Controllers (physical or virtual)

802.11n version 2.0 (and related) capabilities

●  4x4 MIMO with four spatial streams

●  Maximal Ratio Combining (MRC)

●  802.11n and 802.11a/g

●  20- and 40-MHz channels

●  PHY data rates up to 1.5 Gbps (40 MHz with 5 GHz and 20 MHz with 2.4 GHz)

●  Packet aggregation: Aggregate MAC Protocol Data Unit (A-MPDU) (transmit and receive), Aggregate MAC Service Data Unit (A-MSDU) (transmit and receive)

●  802.11 Dynamic Frequency Selection (DFS)

●  Cyclic Shift Diversity (CSD) support


●  4x4 downlink MU-MIMO with four spatial streams

●  MRC

●  802.11ac beamforming

●  20-, 40-, 80-, and 160-MHz channels

●  PHY data rates up to 3.4 Gbps (Dual 4x4 80+80 MHz on 5-GHz)

●  Packet aggregation: A-MPDU (transmit and receive), A-MSDU (transmit and receive)

●  802.11 DFS

●  CSD support

●  Wi-Fi Protected Access (WPA) 3 support


●  1024 QAM

●  4x4 uplink/downlink MU-MIMO with four spatial streams (2.4 GHz, 5 GHz and 6 GHz)

●  Uplink/downlink OFDMA

●  TWT

●  BSS coloring

●  MRC

●  802.11ax beamforming

●  20-, 40-, 80-, and 160-MHz channels (6-GHz)

●  20-, 40-, 80-, and 80+80-MHz channels (5-GHz)

●  20-MHz channels (2.4-GHz)

●  PHY data rates up to 7.78 Gbps (4x4 160 MHz on 6 GHz, 4x4 80 MHz on 5 GHz, and 4x4 20 MHz on 2.4 GHz)

●  Packet aggregation: A-MPDU (transmit and receive), A-MSDU (transmit and receive)

●  802.11 DFS

●  CSD support

●  WPA3 support

Integrated antenna

●  2.4 GHz: Peak gain 3 dBi, internal antenna, omnidirectional in azimuth

●  5 GHz: Peak gain 5 dBi, internal antenna, omnidirectional in azimuth

●  5 GHz (XOR): Peak gain 5 dBi, internal antenna, omnidirectional in azimuth

●  6 GHz: Peak gain 4 dBi, internal antenna, omnidirectional in azimuth


●  Catalyst 9166 Series: 1x 100M/1000M/2.5G/5G Multigigabit Ethernet (RJ-45)

●  Management console port (RJ-45)

●  USB 2.0 at 4.5W


●  Status LED indicates boot loader status, association status, operating status, boot loader warnings, and boot loader errors

(W x L x H)

●  Access point (without mounting brackets):

◦      Catalyst 9166 Series: 9.5 x 9.5 x 2.2 in. (241.3 x 241.3 x 56.9 mm)


Catalyst 9166 Series

●  3.54 lb. (1.60 kg)

Input power requirements

●  802.3bt, Cisco Universal PoE (Cisco UPOE ®), 802.3at Power over Ethernet Plus (PoE+)

●  Cisco power injectors: AIR-PWRINJ7=, AIR-PWRINJ6=, MA-INJ-6

●  802.3af PoE (only for configuration staging, all radios off)

●  DC power input (54V)


Catalyst 9166

PoE power consumption

2.4-GHz radio

5-GHz radio

6-GHz radio (LPI)

Link speed


Link Layer Discovery Protocol (LLDP)

802.3bt (UPOE)




5 Gbps

Y (4.5W)


802.3at (PoE+)




5 Gbps


25.5 W

802.3af (PoE)



14.0 W

DC power







Note: Power required at the power source equipment (PSE) will depend on the cable length and other environmental issues.


Catalyst 9166 Series

●  Nonoperating (storage) temperature: -22° to 158°F (-30° to 70°C)

●  Nonoperating (storage) altitude test: 25?C (77°F) at 15,000 ft (4600 m)

●  Operating temperature: 32° to 122°F (0° to 50°C)

●  Operating humidity: 10% to 90% (noncondensing)

●  Operating altitude test: 40°C (104°F) at 9843 ft (3000 m)

System memory

●  2048 MB DRAM

●  1024 MB flash


Limited lifetime hardware warranty

Available transmit power settings

2.4 GHz

●  23 dBm (200 mW)

●  -4 dBm (0.39 mW)

5 GHz

●  23 dBm (200 mW)

●  -4 dBm (0.39 mW)

6 GHz

●  23 dBm (200 mW)

●  -4 dBm (0.39 mW)

Note: In countries where use of the 6-GHz band is not allowed or there is no current software support, the 6-GHz radio will be disabled. The radio may be enabled with future software, once the product is certified to operate at 6 GHz for that country.

Regulatory domains

Note: Customers are responsible for verifying approval for use in their individual countries. To verify approval and to identify the regulatory domain that corresponds to a particular country, visit

Compliance standards

●  Safety:

◦      IEC 60950-1 / IEC 62368-1 Ed.3 (with Ed.2 Deviation annex)

◦      EN 60950-1 / EN 62368-1 Ed.3 (with Ed.2 Deviation annex)

◦      UL 60950-1 / UL62368-1 3rd (with Ed.2 Deviation annex)

◦      CAN/CSA-C22.2 No. 60950-1 / CAN/CSA-C22.2 No. 62368-1 3rd (with Ed.2 Deviation annex)

◦      AS/NZS60950.1 / AS/NZS62368.1 Ed.3 (with Ed.2 Deviation annex)

◦      UL 2043

◦      Class III equipment

●  Emissions:

◦      CISPR 32 (rev. 2015) +AMD1:2019

◦      EN 55032:2015/A11:2020

◦      EN IEC 61000-3-2:2019/A1:2021

◦      EN61000-3-3:2013+A1:2019

◦      AS/NZS CISPR32: 2015+AMD1:2020

◦      47 CFR FCC Part 15B

◦      ICES-003 (Issue 7, Class B)

◦      VCCI-CISPR 32:2016

◦      CNS 13438:2006 (95)

◦      KS C 9832:2019

●  Immunity:

◦      EN 55035: 2017+A11:2020

◦      KS C 9835:2019

●  Emissions and immunity:

◦      EN 301 489-1 V2.2.3 (2019-11)

◦      EN 301 489-17 V3.2.4 (2020-09)

◦      QCVN 112:2017/BTTTT

◦      KS X 3124:2020

◦      KS X 3126:2020

◦      EN 61000-6-1: 2019

●  Radio:

◦      EN 300 328 (v2.2.2)

◦      EN 301 893 (v2.1.1)

◦      EN 303 687 (v0.0.14, draft)

◦      AS/NZS 4268 (rev. 2017)

◦      47 CFR FCC Part 15C, 15.247, 15.407

◦      RSP-100

◦      RSS-GEN

◦      RSS-247

◦      LP002

◦      Japan Std. 66, and Std. 71

●  RF safety:

◦      EN 50385:2017

◦      EN 62311:2020

◦      AS/NZS 2772.2 (rev. 2016)

◦      47 CFR Part 2.1091

◦      RSS-102

●  IEEE standards:

◦      IEEE 802.3

◦      IEEE 802.3ab

◦      IEEE 802.3af/at/bt?

◦      IEEE 802.11a/b/g/n/ac/ax

◦      IEEE 802.11h, 802.11d

●  Security

◦      WPA2-Personal (802.11i)

◦      WPA2-Enterprise with 802.1X

◦      WPA3-Personal, WPA3-Enterprise

◦      WPA3-Enhanced Open (OWE)

◦      Advanced Encryption Standard (AES)

●  Extensible Authentication Protocol (EAP) types:

◦      EAP-Transport Layer Security (TLS)

◦      EAP-Tunneled TLS (TTLS) or Microsoft Challenge Handshake Authentication Protocol (MSCHAP) v2

◦      Protected EAP (PEAP) v0 or EAP-MSCHAP v2

◦      EAP-Flexible Authentication via Secure Tunneling (EAP-FAST)

◦      PEAP v1 or EAP-Generic Token Card (GTC)

◦      EAP-Subscriber Identity Module (SIM)


●  Wi-Fi Alliance: Wi-Fi 6 (R2), Wi-Fi 6E, WPA3-R3, WPA3-Suite B, Enhanced Open Security

●  Bluetooth SIG: Bluetooth Low Energy

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