Cisco AIR-AP1852I-I-K9 Aironet 1850 Series Access Point

Description

The Cisco AIR-AP1852I-I-K9 is a professional enterprise wireless access point from the Cisco Aironet 1850 Series, designed to provide high-capacity, reliable Wi-Fi connectivity for small and medium-sized enterprise networks.

Built around 802.11ac Wave 2 technology, the Aironet 1852I combines 4×4 MIMO, four spatial streams, simultaneous dual-band operation, and integrated internal antennas to provide high wireless capacity and improved performance for modern mobile devices, laptops, tablets, and other Wi-Fi clients. Cisco specifies up to 1.7 Gbps on the 5 GHz radio and an aggregate dual-radio data rate of up to 2.0 Gbps.

The AIR-AP1852I-I-K9 is the internal-antenna version of the 1852 access point and is designed for indoor installation on a wall or ceiling. Its integrated omnidirectional antennas simplify installation while providing broad wireless coverage.

Key Features

• Brand: Cisco
• Product Family: Cisco Aironet 1850 Series
• Model: AIR-AP1852I-I-K9
• Product Type: Enterprise Wireless Access Point
• Deployment: Indoor
• Wireless Standard: IEEE 802.11a/b/g/n/ac Wave 2
• Wireless Technology: 802.11ac Wave 2
• MIMO: 4×4
• Spatial Streams: Four spatial streams in single-user MIMO mode
• 5 GHz Maximum Data Rate: Up to 1.7 Gbps
• Aggregate Dual-Radio Data Rate: Up to 2.0 Gbps
• 2.4 GHz Antenna: Integrated omnidirectional, 3 dBi
• 5 GHz Antenna: Integrated omnidirectional, 5 dBi
• Ethernet: 10/100/1000BASE-T
• Power: Power over Ethernet (PoE)
• AUX Ethernet: 10/100/1000BASE-T for Link Aggregation
• Management: RJ-45 console port
• USB: USB 2.0 interface
• Deployment Modes: Centralized, FlexConnect, Mesh, Monitor, OfficeExtend, and supported standalone configurations
• Mounting: Wall or ceiling
• Dimensions: 8.3 × 8.3 × 2.0 in. (210.8 × 210.8 × 50.8 mm)
• Weight: Approximately 3.12 lb (1.41 kg)

802.11ac Wave 2 Performance

The Aironet 1850 Series was designed to support the increasing bandwidth requirements of modern enterprise wireless networks. Its 802.11ac Wave 2 implementation supports up to 1.7 Gbps on the 5 GHz radio, providing substantially higher wireless capacity than earlier generations of 802.11n access points.

The platform also supports an aggregate dual-radio data rate of up to 2.0 Gbps, making it suitable for environments with many simultaneously connected wireless clients.

4×4 MIMO and Multiuser MIMO

The AIR-AP1852I uses 4×4 Multiple-Input Multiple-Output (MIMO) technology.

Cisco specifies four spatial streams when operating in single-user MIMO mode and three spatial streams when operating in multiuser MIMO mode. MU-MIMO enables the access point to transmit data to multiple compatible 802.11ac Wave 2 clients simultaneously, improving the utilization of available wireless capacity.

This makes the access point particularly suitable for high-density environments where many users and wireless devices need access to network resources at the same time.

Integrated Internal Antennas

The AIR-AP1852I incorporates four integrated dual-band antennas inside the access point housing.

Cisco specifies:

• 2.4 GHz: 3 dBi integrated omnidirectional antenna
• 5 GHz: 5 dBi integrated omnidirectional antenna
• Horizontal beamwidth: 360°

The internal antenna design provides a clean installation without requiring external antennas, making the 1852I particularly appropriate for standard indoor enterprise deployments.

Advanced Wireless Technologies

The Aironet 1850 Series incorporates several technologies designed to improve wireless performance and client experience, including:

Multiuser MIMO

Allows compatible clients to receive transmissions simultaneously, helping improve wireless efficiency in environments with multiple active users.

Transmit Beamforming

Cisco’s transmit beamforming technology improves downlink performance to mobile devices and can help improve wireless efficiency and device battery utilization.

802.11ac Wave 2

Provides increased wireless capacity and supports modern high-performance Wi-Fi clients.

Four Spatial Streams

The 4×4 architecture provides additional wireless capacity compared with lower-stream access-point designs.

Gigabit Ethernet Connectivity

The access point includes a 10/100/1000BASE-T autosensing RJ-45 Ethernet interface with Power over Ethernet support.

A second 10/100/1000BASE-T auxiliary Ethernet interface is available for Link Aggregation applications. Cisco specifies that the auxiliary port is intended for Link Aggregation and does not provide or require PoE.

Gigabit Ethernet connectivity provides an appropriate wired network interface for taking advantage of the access point’s high wireless throughput capabilities.

Flexible Enterprise Deployment

The Aironet 1850 Series supports a range of deployment modes designed for different enterprise wireless architectures.

Supported modes include:

• Centralized local deployment
• Cisco FlexConnect
• Mesh
• Monitor mode
• OfficeExtend
• Supported standalone operation
• Cisco Mobility Express

This flexibility allows the AIR-AP1852I-I-K9 to be integrated into different Cisco wireless network designs.

Cisco Mobility Express

The 1850 Series can support Cisco Mobility Express when using the appropriate configurable model/software configuration. Cisco identifies models ending in -K9C as factory-shipped with the Mobility Express software image.

Important: The specified AIR-AP1852I-I-K9 is the standard K9 controller-based model. Mobility Express availability and software requirements should therefore be verified before listing this particular SKU as including or being preconfigured for Mobility Express.

Enterprise Network Management

The AIR-AP1852I-I-K9 is designed to integrate with Cisco’s enterprise wireless infrastructure and supports Cisco wireless controllers and related management architectures.

Cisco documentation identifies compatibility with a range of Cisco wireless controllers, including the Catalyst 9800 Series, 2500/3500 Series controllers, 5500 Series, 8500 Series, 5760 Series, and other supported Cisco controller platforms, subject to software and platform requirements.

Physical Installation

The AIR-AP1852I is designed for indoor installation and can be mounted on a wall or ceiling. Cisco specifies dimensions of approximately 8.3 × 8.3 × 2.0 inches (210.8 × 210.8 × 50.8 mm) and a weight of approximately 3.12 lb (1.41 kg).

Its integrated antenna design makes it suitable for professional office and enterprise installations where a clean, unobtrusive wireless infrastructure is preferred.

Interfaces

The AIR-AP1852I-I-K9 provides several connectivity and management interfaces:

• 1 × 10/100/1000BASE-T RJ-45 Ethernet port with PoE
• 1 × 10/100/1000BASE-T auxiliary Ethernet port for Link Aggregation
• RJ-45 management console port
• USB 2.0 interface

These interfaces provide network connectivity, management access, and expansion capabilities appropriate for enterprise wireless deployments.

Ideal Applications

The Cisco AIR-AP1852I-I-K9 is suitable for a wide variety of indoor enterprise applications, including:

• Corporate offices
• Small and medium-sized businesses
• Schools and universities
• Healthcare facilities
• Government offices
• Hotels and hospitality environments
• Retail locations
• Warehouses and commercial facilities
• Conference and meeting spaces
• High-density office environments
• Enterprise campus networks

Product Benefits

High Wireless Capacity

Up to 1.7 Gbps on the 5 GHz radio provides substantial wireless capacity for demanding applications.

4×4 MIMO

Four-stream MIMO architecture provides increased capacity and performance for compatible wireless clients.

MU-MIMO

Simultaneous transmission to multiple compatible clients helps improve wireless efficiency in busy environments.

Integrated Antennas

Internal omnidirectional antennas simplify deployment and provide broad coverage.

Gigabit Ethernet

10/100/1000BASE-T connectivity provides high-speed wired backhaul.

Flexible Deployment

Support for centralized, FlexConnect, mesh, monitor, OfficeExtend, and other supported deployment modes allows the access point to adapt to different network architectures.

Enterprise-Class Cisco Platform

Designed as part of the Cisco Aironet enterprise wireless ecosystem, the 1850 Series provides a scalable platform for managed wireless networks.

Technical Specifications

Specifications are based on Cisco’s official Aironet 1850 Series documentation.

Regulatory Domain

The “-I-” portion of the model number identifies the regulatory domain. Cisco lists I among the supported Aironet 1850 regulatory domains and notes that customers are responsible for verifying approval for use in their individual countries.

Before deployment, the regulatory-domain compatibility for the destination country should be confirmed.

Product Summary

The Cisco AIR-AP1852I-I-K9 Aironet 1850 Series Access Point is a high-performance indoor enterprise access point designed for organizations requiring substantial wireless capacity and reliable connectivity.

With 802.11ac Wave 2, 4×4 MIMO, MU-MIMO, integrated dual-band omnidirectional antennas, up to 1.7 Gbps 5 GHz performance, Gigabit Ethernet, PoE, and flexible Cisco deployment options, it provides a strong platform for business and enterprise wireless networks.

Brand: Cisco
Series: Aironet 1850
Model: AIR-AP1852I-I-K9
Type: Indoor Enterprise Wireless Access Point
Wireless: 802.11a/b/g/n/ac Wave 2
MIMO: 4×4
5 GHz Rate: Up to 1.7 Gbps
Aggregate Rate: Up to 2.0 Gbps
Antennas: Integrated omnidirectional
Ethernet: Gigabit Ethernet
Power: PoE
Deployment: Centralized / FlexConnect / Mesh / supported modes
Regulatory Domain: I