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by Cisco
Product Line: Cisco Aironet 1850 Series
Product Type: Access Point
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Title: Surplus

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Product Description

The AIR-AP1852I-E-K9 is a controller-based access point supporting Cisco IOS 8.1 MR1 or later and is compatible with Cisco 2500, 3500 Series Wireless Controllers, and Cisco Wireless Controller Module for ISR G2. It features 4 x 4 MIMO technology with four spatial streams and integrated antennas for both 2.4 GHz and 5 GHz bands, ensuring efficient and broad wireless coverage. This device has a 1 GB DRAM and 256 MB Flash Memory, operates within a temperature range of 0 °C to 50 °C, and supports a maximum operating altitude of 9843 ft at 40 °C, with a power draw of 20.9 W.

FAQs for the AIR-AP1852I-E-K9

  • What is the regulatory domain of the controller-based hardware?
    The regulatory domain is E.
  • How many bands does the Type Controller Based support?
    It supports 2 bands.
  • Which software version is required for optimal performance?
    Cisco IOS 8.1 MR1 or later is required.
  • Can you list the supported Wireless LAN Controllers for this device?
    The device supports Cisco 2500 Series Wireless Controllers, Cisco 3500 Series Wireless Controllers, and Cisco Wireless Controller Module for ISR G2.
  • What technology does it employ for data transmission?
    It uses 4 x 4 MIMO with four spatial streams technology.
  • What are the integrated antenna frequencies?
    Integrated antennas operate at 2.4 GHz and 5 GHz.
  • How does the device indicate its status?
    Status is indicated through LED indicators for boot loader status, association status, operating status, boot loader warnings, and boot loader errors.
  • What are the physical dimensions and weight of the device?
    The device measures 8.3 x 8.3 x 2 inches and weighs 3.12 lbs.
  • What are the operating temperature limits?
    The minimum operating temperature is 0 °C, and the maximum is 50 °C.
  • How much power does the device draw?
    It has a power draw of 20.9 W.

Product Review

The Cisco AIR-AP1852I-E-K9 access point offers dual-band operation with 4x4 MIMO technology, supporting up to four spatial streams for enhanced throughput and coverage. Compatibility with Cisco 2500 and 3500 Series Wireless Controllers, along with support for Cisco IOS 8.1 MR1 or later, ensures seamless integration into existing Cisco environments. However, its power draw of 20.9W may require careful planning in deployments with limited PoE budgets.


The Cisco AIR-AP1852I-E-K9 is a controller-based access point designed to meet the demands of modern wireless networks. It operates within the regulatory domain E and supports dual-band functionality, capable of operating on both 2.4 GHz and 5 GHz frequencies. This device is engineered for performance, leveraging 4 x 4 MIMO technology with four spatial streams to enhance wireless connectivity and throughput. It is compatible with a range of Cisco Wireless LAN Controllers, including the Cisco 2500 Series, Cisco 3500 Series, and the Cisco Wireless Controller Module for ISR G2, ensuring flexible deployment options across various network environments. Equipped with integrated antennas for both the 2.4 GHz and 5 GHz bands, the AIR-AP1852I-E-K9 ensures wide coverage and reliable signal strength. The device provides visual diagnostic information through status LED indicators that display boot loader status, association status, operational status, and alerts for both warnings and errors during the boot process. This feature simplifies troubleshooting and helps maintain optimal network performance. Physically, the access point measures 8.3 x 8.3 x 2 inches and weighs 3.12 lbs, making it compact enough for various installation environments without compromising on performance. It operates efficiently across a wide range of temperatures, from 0 °C to 50 °C, and can function up to an altitude of 9843 ft at 40 °C. For non-operating conditions, it can withstand temperatures ranging from -30 °C to 70 °C. Humidity tolerance is also factored into its design, with the device capable of operating in environments with 10% to 90% non-condensing humidity levels. The hardware specifications include 1 GB of DRAM and 256 MB of flash memory, ensuring smooth operation and sufficient storage for firmware and configurations. The power requirements are versatile, with the device supporting input power from both AC (100 to 240 VAC; 50 to 60 Hz) and DC sources (44 to 57 VDC), with a total power draw of 20.9 W. This power efficiency is critical for reducing operational costs in large-scale deployments. Key hardware specifications include: - Technology: 4 x 4 MIMO with Four Spatial Streams - Memory: 1 GB DRAM, 256 MB Flash - Power Draw: 20.9 W The Cisco AIR-AP1852I-E-K9 is designed to support Cisco IOS 8.1 MR1 or later, enabling advanced features and security to be utilized within the wireless network. Its comprehensive compatibility with Cisco's line of wireless controllers and the integration of advanced MIMO technology makes it a suitable choice for organizations looking to deploy a high-density, high-performance wireless network infrastructure. Whether it is deployed in educational institutions, corporate offices, or large retail environments, this access point is built to deliver reliable wireless connectivity that meets the demands of a wide range of wireless devices and applications.


Model Number Cisco AIR-AP1852I-E-K9
Operation Mode Controller-Based
Compliance Domain E
Frequency Bands Dual-Band
Firmware Requirement Cisco IOS 8.1 MR1 or newer
Compatible Controllers Cisco 2500, Cisco 3500 Series, ISR G2 Wireless Controller Module
Wireless Technology 4x4 MIMO with four spatial channels
Antenna Configuration Dual-band integrated antennas (2.4 GHz, 5 GHz)
Diagnostic LEDs Indicators for system status, association, boot process, warnings, and errors
Dimensions (Width x Length x Height) 8.3 x 8.3 x 2 inches
Unit Weight 3.12 pounds
Operational Min Temperature 0 °C
Operational Max Temperature 50 °C
Max Altitude for Operation 9843 feet at 40 °C
Storage Min Temperature -30 °C
Storage Max Temperature 70 °C
Operating Humidity Range 10% to 90% non-condensing
System RAM 1 GB DRAM
System Flash Storage 256 MB
Energy Consumption 20.9 Watts
AC Power Requirements 100-240 VAC, 50/60 Hz
DC Power Input 44-57 VDC

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