AIR-AP1840I-I-K9 Cisco Aironet 1840I 802.11ac Wave 2 Access Point

AIR-AP1840I-I-K9 I-Domain Procurement Record

AIR-AP1840I-I-K9 identifies the I-domain, controller-operated Aironet 1840. The indoor AP provides 4x4:4 802.11ac Wave 2 service at 5 GHz, a 2x2 2.4 GHz radio, four embedded antennas and dual Gigabit Ethernet.

I-domain has a two-block 5 GHz plan

The official table gives thirteen channels at 2.412-2.472 GHz and eight 5 GHz channels at 5.180-5.320 GHz. There is no listed 5.500-5.700 GHz block for this I-domain row. Treat that smaller channel inventory as an exact procurement difference from AIR-AP1840I-E-K9, then confirm local approval in Cisco's compliance tool.

Join-path readiness

This K9 order is intended for controller-based deployment rather than a factory Mobility Express image. Before a replacement window, record controller release, discovery method, country, AP group, radio policy, certificates and licensing. Stage the AP on the target controller and preserve join and rollback evidence.

Coverage and mounting checks

Cisco publishes peak integrated-antenna gains of 4 dBi at 2.4 GHz and 5 dBi at 5 GHz. Validate bracket completeness, ceiling placement, both copper links and client coverage rather than attaching an external antenna design to this internal-antenna SKU.

Retirement decision gate

The exact I-domain PID is in Cisco's end-of-sale announcement. Last support is 30 April 2027 and the indicated migration family is Catalyst 9115AX. A quote should therefore state support eligibility, controller interoperability and the planned replacement horizon, not only physical stock.

Official evidence: Cisco I-domain channels and integrated-antenna data, Cisco controller model and installation guide, Cisco I-domain lifecycle row and Cisco regulatory compliance tool.