Cisco Aironet 1840 Series Access Point (Model: AIR-AP1840I-E-K9)
The Cisco Aironet 1840I offers high-performance 802.11ac Wave 2 wireless in a compact form, ideal for small to mid-sized enterprises.
Software & Controller Support
Requires Cisco Unified Wireless Network Software 8.8 MR2+ or IOS XE 16.12+
Compatible with:
- Cisco Catalyst 9800 Series
- Cisco 3500, 5520, 8540 Series
- Cisco Virtual Wireless Controller
- Cisco Mobility Express
Wireless Capabilities
802.11n Features:
- 5 GHz: 4×4 MIMO, 4 spatial streams
- 2.4 GHz: 2×2 MIMO, 2 spatial streams
- Max data rate: 744 Mbps
- Beamforming, MRC, DFS, CSD, A-MPDU/A-MSDU
802.11ac Features:
- 4×4 downlink MU-MIMO, 4 spatial streams
- Max data rate: 1733 Mbps
- Beamforming, MRC, DFS, CSD, A-MPDU/A-MSDU
Antennas
Integrated omnidirectional internal antennas:
- 2.4 GHz: 4 dBi
- 5 GHz: 5 dBi
Interfaces
- 2 × RJ-45 (10/100/1000BASE-T with PoE)
- 1 × RJ-45 Management Console
- 1 × USB 2.0 (future use)
Status Indicators
- LED for boot, association, and error status
Dimensions & Power
Size: 7 x 7 x 1.5 in
Power options:
- 802.3at PoE+, Cisco UPOE, or power injector (AIR-PWRINJ6=)
- 802.3af PoE (USB disabled; AIR-PWRINJ5=)
Power draw:
- 13.2W (no USB), 17.8W (USB enabled)
Environmental Tolerance
- Operating Temp: 0°C to 50°C
- Storage Temp: -30°C to 70°C
- Operating Humidity: 10%–90% non-condensing
- Altitude: Up to 9843 ft (40°C)
Memory
- 1 GB DRAM, 256 MB Flash
Transmit Power Options
- 2.4 GHz: Up to 20 dBm (100 mW)
- 5 GHz: Up to 23 dBm (200 mW)
Supported Frequency Bands (E Domain)
- 2.412–2.472 GHz (13 channels)
- 5.180–5.320 GHz (8 channels)
- 5.500–5.700 GHz (8 channels, excluding 5.600–5.640 GHz)
