AIR-AP1840I-G-K9 keeps the G regulatory-domain letter and K9 controller-based identity in its complete order code. Attach the G-domain approval to the asset record and compare it again after firmware or country-setting changes.
The G-domain K9 page represents a controller-based AP. Store the primary, secondary and tertiary controller discovery method, switch-port configuration and authorized country with the asset. During acceptance, distinguish a discovery failure from power or radio failure by preserving LED and controller logs.
Store controller priority, discovery path, switch-port configuration and country setting for G-K9. When join fails, use LED, DHCP, CAPWAP and controller logs to separate network discovery from power or RF faults. The final acceptance record should show a successful configuration download and client authentication.
Troubleshooting ownership belongs in the order file because a controller join is a required dependency for G-K9. Cisco records the 1840 series as end of sale on May 1, 2022 and end of support on April 30, 2027.
Official evidence: Cisco Aironet 1840 data sheet; Cisco 1840 getting-started guide; Cisco 1840 lifecycle record; and Cisco wireless compliance lookup.
| Exact model / SKU | AIR-AP1840I-G-K9 |
| Exact Cisco PID | AIR-AP1840I-G-K9 |
| Hardware | Aironet 1840i indoor access point with internal antennas |
| 5 GHz radio | 4x4 802.11ac Wave 2; 4 spatial streams SU-MIMO; 3 MU-MIMO |
| 2.4 GHz radio | 2x2; 2 spatial streams SU-MIMO |
| Antenna | Internal; 4 dBi peak at 2.4 GHz and 5 dBi peak at 5 GHz |
| Interfaces | 2x autosensing Gigabit Ethernet, PoE input, console and USB |
| Software identity | K9 - controller-based |
| Regulatory domain | G |
| Lifecycle | End of sale 2022-05-01; end of support 2027-04-30 |
| Source match | AIR-AP1840I-G-K9: Aironet 1840i, K9, domain G, radio/antenna/interface and lifecycle facts |
| Official manufacturer reference | Cisco Aironet 1840 Series official data sheet |
Product Quotation | ![]() | Condition and Packaging | |
![]() | Technical Support Enquiry | Returns and Replacement | |
Shipping Arrangements | ![]() | Warranty Terms |
AIR-AP1840I-G-K9 Cisco Aironet 1840I Indoor Bluetooth 4.2 Access Point is a CISCO Aironet 1840 Series Access Points product supplied by YYST Global for enterprise IT procurement and infrastructure projects.
For AIR-AP1840I-G-K9, the manufacturer specification lists 5 ghz radio as 4x4 802.11ac Wave 2; 4 spatial streams SU-MIMO; 3 MU-MIMO.
For AIR-AP1840I-G-K9, the manufacturer specification lists interfaces as 2x autosensing Gigabit Ethernet, PoE input, console and USB.
Contact YYST Global to confirm availability for AIR-AP1840I-G-K9, the required quantity, exact configuration, delivery destination and current lead time before ordering. A product listing does not confirm current inventory.
Please request a quote for AIR-AP1840I-G-K9. Final pricing depends on stock, quantity, configuration and delivery destination.
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