AIR-AP1852E-Q-K9C is one of the Cisco Aironet 1850 Series Access Points. Cisco 1850 AP series is ideal for small and medium-sized networks. This series supports enterprise-class 4x4 MIMO, four-spatial-stream access points that support the IEEE’s new 802.11ac Wave 2 specification. The 1850 Series extends support to a new generation of Wi-Fi clients, such as smartphones, tablets, and high-performance laptops that have integrated 802.11ac Wave 2 support. The model AIR-AP1852E-Q-K9C provides Q Regulatory Domain and External antennas. Model number ending in C is, by default, factory-shipped with a Cisco Mobility Express software image.
Quick Specs
Table 1 shows the quick specs of AIR-AP1852E-Q-K9C.
| 
 Part Number  | 
 AIR-AP1852E-Q-K9C  | 
| 
 Description  | 
 802.11ac Wave 2 Access Point, 4x4:4, External-Ant, Q Regulatory Domain ★ Model number ending in C is, by default, factory-shipped with a Cisco Mobility Express software image.  | 
| 
 Features  | 
 - 4x4 MIMO with four spatial streams, single-user MIMO - 4x4 MIMO with three spatial streams, multiuser MIMO - MRC - 802.11ac beamforming (transmit beamforming) - 20-, 40-, and 80-MHz channels - PHY data rates up to 1.7 Gbps (80 MHz in 5 GHz) - Packet aggregation: A-MPDU (Tx/Rx), A-MSDU (Tx/Rx) - 802.11 DFS - CSD support  | 
| 
 Regulatory Domain  | 
 Q (Q regulatory domain): - 2.412 to 2.472 GHz; 3 channels - 5.180 to 5.320 GHz; 8 channels - 5.500 to 5.700 GHz; 11 channels  | 
| 
 Antenna  | 
 External Antenna  | 
| 
 Interfaces  | 
 - 1 x 10/100/1000BASE-T autosensing (RJ-45), Power over Ethernet (PoE) - 1 x 10/100/1000BASE-T autosensing (RJ-45), AUX (used for Link Aggregation) - Management console port (RJ-45) - USB 2.0 (enabled via future software)  | 
| 
 Dimensions (W x L x H)  | 
 8.3 x 8.3 x 2 in. (210.8 x 210.8 x 50.8 mm)  | 
| 
 Weight  | 
 3.12 lb (1.41 kg)  | 
Product Details
Figure 1 shows the AIR-AP1852E LED Indicator Position.
Note:
| 
 ①  | 
 LED indicator position  | 
| 
 ②  | 
 External Antenna  | 
There are four external antennas installed with the AP.
Table 2 shows the AP LED indicators’ descriptions.
| 
 Message Type  | 
 LED State  | 
 Message Meaning  | 
| 
 Association status  | 
 Chirping Green  | 
 Normal operating condition, but no wireless client associated  | 
| 
 Green  | 
 Normal operating condition, at least one wireless client association  | 
|
| 
 Boot loader status  | 
 Green  | 
 Executing boot loader  | 
| 
 Boot loader error  | 
 Red  | 
 Boot loader signing verification failure  | 
| 
 Access point regulatory domain priming status  | 
 Blinking Amber  | 
 AP priming to a new regulatory domain by Neighbor Discovery Protocol (NDP), in progress  | 
| 
 Cycling Red, Green and off  | 
 AP waiting to be primed  | 
|
| 
 Chirping Red  | 
 AP primed to a wrong regulatory domain  | 
|
| 
 Operating status  | 
 Blinking amber  | 
 Software upgrade in progress  | 
| 
 Cycling through green, red, and amber  | 
 Discovery/join process in progress  | 
|
| 
 Rapidly cycling through red, green, amber, and off.  | 
 Access point location command invoked from controller web interface.  | 
|
| 
 Access point operating system errors  | 
 Cycling through red, green, amber, and off  | 
 General warning; insufficient inline power  | 
Figure 2 shows AIR-AP1852E Ports and Connections.

Note:
| 
 ①  | 
 Mode button  | 
 ④  | 
 AUX (Auxiliary) port.  | 
| 
 ②  | 
 RJ-45 console port  | 
 ⑤  | 
 PoE-In port (Ethernet Uplink port)  | 
| 
 ③  | 
 USB 2.0 port  | 
 ⑥  | 
 48 V DC input power port  | 
AUX (Auxiliary) port appears in the wireless controller user interface as GigabitEthernet1. This port, along with the PoE-In port, is used for Link Aggregation. This port is disabled when using 802.3af (15.4W) power.
Compare to Similar Items
Table 3 shows the comparison between two AP.
| 
 Part Number  | 
 AIR-AP1852E-Q-K9C  | 
|
| 
 Description  | 
 802.11ac Wave 2 Access Point, 4x4:4  | 
 802.11ac Wave 2 Access Point, 4x4:4 ★ Model number ending in C is, by default, factory-shipped with a Cisco Mobility Express software image.  | 
| 
 External Antenna  | 
 Yes  | 
 Yes  | 
| 
 Regulatory Domain  | 
 Q (Q regulatory domain): - 2.412 to 2.472 GHz; 3 channels - 5.180 to 5.320 GHz; 8 channels - 5.500 to 5.700 GHz; 11 channels  | 
 Q (Q regulatory domain): - 2.412 to 2.472 GHz; 3 channels - 5.180 to 5.320 GHz; 8 channels - 5.500 to 5.700 GHz; 11 channels  | 
Support & Resources
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AIR-AP1852E-Q-K9C Specification
AIR-AP1852E-Q-K9C Specifications | 
|
| 
 Description  | 
 802.11ac Wave 2 Access Point, 4x4:4, External-Ant, Q Regulatory Domain ★ Model number ending in C is, by default, factory-shipped with a Cisco Mobility Express software image.  | 
| 
 Software  | 
 Cisco Unified Wireless Network Software Release with AireOS wireless controllers: 
  | 
| 
 Regulatory Domain  | 
 Q (Q regulatory domain): - 2.412 to 2.472 GHz; 3 channels - 5.180 to 5.320 GHz; 8 channels - 5.500 to 5.700 GHz; 11 channels  | 
| 
 Deployment modes  | 
 Centralized local, Standalone, Sniffer, Cisco FlexConnect, Monitor, OfficeExtend, Mesh  | 
| 
 Supported wireless LAN controllers  | 
  | 
| 
 802.11n version 2.0 (and related) capabilities  | 
  | 
| 
 802.11ac Wave 1 and 2 capabilities  | 
  | 
| 
 External antenna (sold separately)  | 
  | 
| 
 Interfaces  | 
  | 
| 
 Indicators  | 
  | 
| 
 Dimensions (W x L x H)  | 
  | 
| 
 Weight  | 
  | 
| 
 Environmental  | 
 Cisco Aironet 1850e 
  | 
| 
 System memory  | 
  | 
| 
 Input power requirements  | 
  | 
| 
 Power draw  | 
 Note: When deployed using a Power over Ethernet (PoE) specification, the power drawn from the power sourcing equipment will be higher by some amount, depending on the length of the interconnecting cable.  | 
| 
 Powering options  | 
 Note: If 802.3af PoE is the source of power, (1) the 1852e 2.4-GHz radio will shift to 2x3 from 3x4, (2) The USB port and AUX Ethernet port are disabled on both the 1852i and 1852e.  | 
| 
 Warranty  | 
 Limited lifetime hardware warranty  | 



                                      
                                                      
                                                  
                                                      
                                                  
                                                      
                                                  
                                                      
                                                  
                          
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