Cisco AIR-AP1840I-S-K9

Cisco AIR-AP1840I-S-K9

Cisco AIR-AP1840I-S-K9: Aironet AP1840I Series access point, Indoor environments, with internal antennas – S domain.

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Thiết bị Wifi Cisco AIR-AP1840I-S-K9

Part Number AIR-AP1840I-S-K9
Description Cisco Aironet AP1840I Series access point -S 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, 4×4 MIMO with four spatial streams

•2.4 GHz, 2×2 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 •4×4 downlink MU-MIMO with four spatial streams


•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 S (S regulatory domain):

•2.412 to 2.472 GHz; 13 channels

•5.180 to 5.320 GHz; 8 channels

•5.500 to 5.700 GHz; 11 channels

•5.745 to 5.825 GHz; 5 channels