AIR-AP1840I-E-K9 - Access Point CISCO - Free user manual and instructions
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| Product Type | Access Point |
| Brand | Cisco |
| Model | AIR-AP1840I-E-K9 |
| Wireless Standard | 802.11ac Wave 2 (backward compatible with 802.11n/g/a) |
| MIMO Configuration | 4x4 downlink MU-MIMO on 5 GHz, 2x2 MIMO on 2.4 GHz |
| Maximum Data Rate | Up to 1733 Mbps (5 GHz), up to 744 Mbps (2.4 GHz) |
| Integrated Antenna | 2.4 GHz peak gain 4 dBi, 5 GHz peak gain 5 dBi, omnidirectional |
| Interfaces | 2 x 10/100/1000BASE-T (RJ-45) with PoE, 1 x management console (RJ-45), 1 x USB 2.0 |
| Power over Ethernet | 802.3at PoE+ (recommended), 802.3af PoE (limited, USB disabled) |
| Power Consumption | 13.2 W (without USB), 17.8 W (with USB) |
| Operating Temperature | 32°F to 122°F (0°C to 50°C) |
| Storage Temperature | -22°F to 158°F (-30°C to 70°C) |
| Dimensions (W x L x H) | 7 x 7 x 1.5 in (17.78 x 17.78 x 3.81 cm) |
| Memory | 1 GB DRAM, 256 MB flash |
| Bluetooth | Bluetooth 4.2 (BLE) |
| Management | Cisco Mobility Express, supports Cisco Wireless Controllers (3500, 5520, 8540, 9800 series) |
| Security | WPA2, WPA3, 802.1X, AES |
| Regulatory Domain | E (Europe) |
Frequently Asked Questions - AIR-AP1840I-E-K9 CISCO
What is the maximum wireless data rate of the AIR-AP1840I-E-K9?
The maximum data rate is up to 1733 Mbps on the 5 GHz band (80 MHz channels) and up to 744 Mbps on the 2.4 GHz band (40 MHz channels).
Can this access point operate without a dedicated controller?
Yes, it supports Cisco Mobility Express, which allows it to function as a standalone controller for small to medium deployments.
What are the power requirements for the AIR-AP1840I-E-K9?
It requires 802.3at PoE+ (Power over Ethernet) for full functionality including USB. It can also run on 802.3af PoE but with the USB port disabled.
Does the AIR-AP1840I-E-K9 support MU-MIMO?
Yes, it supports 4x4 downlink MU-MIMO on the 5 GHz band, allowing simultaneous data transmission to multiple clients.
What are the physical dimensions of the access point?
The dimensions are 7 x 7 x 1.5 inches (17.78 x 17.78 x 3.81 cm) without mounting brackets.
What type of antennas does the AIR-AP1840I-E-K9 have?
It has integrated omnidirectional antennas: peak gain 4 dBi on 2.4 GHz and 5 dBi on 5 GHz.
Is there a USB port on this access point?
Yes, it has a USB 2.0 port. Note that the USB port is only powered when using PoE+ (802.3at); with PoE (802.3af), the USB port is disabled.
Which wireless LAN controllers are compatible with this access point?
It is compatible with Cisco 3500, 5520, 8540, and 9800 series Wireless Controllers, as well as the Cisco Virtual Wireless Controller and Cisco Mobility Express.
What is the operating temperature range of the AIR-AP1840I-E-K9?
The operating temperature range is 32°F to 122°F (0°C to 50°C). If the ambient temperature exceeds 40°C, the radio transmit duty cycle may be limited to 50%.
What Bluetooth version is supported?
The access point supports Bluetooth 4.2 with Low Energy (BLE) for location-based services.
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USER MANUAL AIR-AP1840I-E-K9 CISCO
The Cisco® Aironet 1840 Access Points delivers an ideal blend of predictable performance in a compact form factor. Packed with 802.11ac Wave 2 features and Bluetooth Low Energy (BLE) for location-based services, this platform is ideal for small to mid-size enterprise deployments.
Product Details
Cisco AP AIR-AP1840I Series provides these features:
-802.11ac Wave 1 and 2 capabilities
-Multiuser Multiple-Input Multiple-Output (MU-MIMO) technology
-Intelligent Capture
-Cisco Mobility Express
-Bluetooth 4.2
Supported Platforms
Table 1 shows the supported platforms and software.
| Supported wireless LAN controllers and Software Recommended Model | |
| Cisco 3500 Series Wireless Controllers AIR-CT3504-K9 | |
| Cisco 5520 Series Wireless Controllers AIR-CT5520-K9 | |
| Cisco 8540 Series Wireless Controllers AIR-CT8540-K9 | AIR-CT8540-1K-K9 |
| Cisco 9800 series Wireless Controllers C9800-40-K9 | C9800-80-K9 |
| Cisco Virtual Wireless Controller / | |
| Cisco Unified Wireless Network Software Release 8.8 MR2 or later / | |
| Cisco IOS® XE Software Release 16.11 or later / | |
Compare to Similar Items
Table 2 shows the comparison of Cisco AIR-AP1840I Series.
| SKU Description | |
| AIR-AP1840I-A-K9 Cisco Aironet AP1840I Series access point - A domain | |
| AIR-AP1840I-B-K9 Cisco Aironet AP1840I Series access point - B domain | |
| AIR-AP1840I-D-K9 Cisco Aironet AP1840I Series access point - D domain | |
| AIR-AP1840I-E-K9 Cisco Aironet AP1840I Series access point - E domain | |
| AIR-AP1840I-F-K9 Cisco Aironet AP1840I Series access point - F domain | |
| AIR-AP1840I-G-K9 Cisco Aironet AP1840I Series access point - G domain | |
| AIR-AP1840I-H-K9 Cisco Aironet AP1840I Series access point - H domain | |
| AIR-AP1840I-I-K9 Cisco Aironet AP1840I Series access point - I domain | |
| AIR-AP1840I-K-K9 Cisco Aironet AP1840I Series access point - K domain | |
| AIR-AP1840I-N-K9 Cisco Aironet AP1840I Series access point - N domain | |
| AIR-AP1840I-S-K9 Cisco Aironet AP1840I Series access point - S domain | |
| AIR-AP1840I-T-K9 Cisco Aironet AP1840I Series access point - T domain | |
| AIR-AP1840I-Z-K9 Cisco Aironet AP1840I Series access point - Z domain | |
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Specification
| AIR-AP1840I-I-K9 Specification | |
| Description Cisco Aironet AP1840I Series access point - I domain | |
| Software •Cisco Unified Wireless Network Software Release 8.8 MR2 or later •Cisco IOS® XE Software Release 16.12 or later | |
| Supported wireless LAN controllers •Cisco Catalyst 9800 Wireless Controllers •Cisco 3500, 5520 and 8540 Series Wireless Controllers, Cisco Virtual Wireless Controller •Cisco Mobility Express | |
| 802.11n version 2.0 (and related) capabilities •5 GHz, 4x4 MIMO with four spatial streams •2.4 GHz, 2x2 MIMO with two spatial streams •Maximal Ratio Combining (MRC) •802.11n and 802.11a/g beamforming •20 and 40 MHz channels •PHY data rates up to 744 Mbps (40 MHz with 5 GHz and 20MHz with 2.4GHz) •Packet aggregation: A-MPDU (Tx/Rx), A-MSDU (Tx/Rx) •802.11 Dynamic Frequency Selection (DFS) •Cyclic Shift Diversity (CSD) support | |
| 802.11ac •4x4 downlink MU-MIMO with four spatial streams | •MRC •802.11ac beamforming •20, 40, 80 MHz channels •PHY data rates up to 1733 Mbps (80MHz with 5 GHz) •Packet aggregation: A-MPDU (Tx/Rx), A-MSDU (Tx/Rx) •802.11 DFS •CSD support |
| Integrated antenna •2.4 GHz, peak gain 4 dBi, internal antenna, omnidirectional in azimuth •5 GHz, peak gain 5 dBi, internal antenna, omnidirectional in azimuth | |
| Interfaces •2 x 10/100/1000BASE-T autosensing (RJ-45), Power over Ethernet (PoE) •Management console port (RJ-45) •USB 2.0 (enabled via future software) | |
| Indicators •Status LED indicates boot loader status, association status, operating status, boot loader warnings, boot loader errors | |
| Dimensions (W x L x H) •Access point (without mounting brackets): AIR-AP1840I: 7 x 7 x 1.5 in | |
| Input power requirements • 802.3at PoE+, Cisco Universal PoE (Cisco UPOE ®) | •Cisco power injector, AIR-PWRINJ6=•802.3af PoE•Cisco power injector, AIR-PWRINJ5= (note: this injector only supports 802.3af)Note: When 802.3af PoE is the source of power, then USB port will be off |
| Power draw | Cisco AIR-AP1840I•13.2W at the PSE (12.1W at the PD) with all features enabled except for the USB port•17.8W at the PSE (16.0W at the PD) with the USB port enabled |
| Environmental Cisco AIR-AP1840I | •Nonoperating (storage) temperature: -22° to 158°F (-30° to 70°C)•Nonoperating (storage) altitude test: 25°C, 15,000 ft.•Operating temperature: 32° to 122°F (0° to 50°C)•Operating humidity: 10% to 90% (noncondensing)•Operating altitude test: 40°C, 9843 ft.Note: when ambient operating temperature exceeds 40°C, then the radio transmit duty cycle may be limited to not greater than 50%. |
| System memory •1GB MB DRAM | •256 MB flash |
| Available transmit power settings 2.4 GHz | •20 dBm (100 mW)•17 dBm (50 mW)•14 dBm (25 mW)•11 dBm (12.5 mW)•8 dBm (6.25 mW)•5 dBm (3.13 mW)•2 dBm (1.56 mW)•-1 dBm (0.79 mW)5 GHz•23 dBm (200 mW)•20 dBm (100 mW)•17 dBm (50 mW)•14 dBm (25 mW)•11 dBm (12.5 mW)•8 dBm (6.25 mW)•5 dBm (3.13 mW)•2 dBm (1.56 mW) |
| Frequency band and 20-MHz operating channels I (I regulatory domain): | •2.412 to 2.472 GHz; 13 channels•5.180 to 5.320 GHz; 8 channels |
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