AIR-AP1840I-T-K9C Cisco Aironet 1840I WiFi 5 Mobility Express AP
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AIR-AP1840I-T-K9C Overview
AIR-AP1840I-T-K9C: Controller-role handoff test
AIR-AP1840I-T-K9C keeps the T regulatory-domain letter and K9C factory Mobility Express identity in its complete order code. Tie the T-domain identity to the accepted channel plan and preserve the export after software changes.
The T-domain K9C acceptance should include a controller-role handoff exercise. Document discovery, software compatibility, configured country, CAPWAP dependencies and the client experience while the designated primary is unavailable. Preserve the result with the serial and authorized destination.
Evidence required before acceptance
Exercise a planned loss of the T-K9C controller role and record discovery, management recovery, authentication continuity and client return. Preserve configured country, software release, serial and destination approval with the result. A normal-state screenshot alone does not prove recoverability.
Procurement decision
Operational sign-off requires a tested controller-role recovery path, not only successful normal operation. Cisco records the 1840 series as end of sale on May 1, 2022 and end of support on April 30, 2027.
Closest ordering comparisons
- AIR-AP1840I-T-K9 - compare regulatory domain and controller image.
- AIR-AP1840I-G-K9 - compare regulatory domain and controller image.
- AIR-AP1840I-N-K9 - compare regulatory domain and controller image.
Official evidence: Cisco Aironet 1840 data sheet; Cisco 1840 getting-started guide; Cisco 1840 lifecycle record; and Cisco wireless compliance lookup.
AIR-AP1840I-T-K9C Specification
| Exact model / SKU | AIR-AP1840I-T-K9C |
| Exact Cisco PID | AIR-AP1840I-T-K9C |
| 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 | K9C - factory Mobility Express image |
| Regulatory domain | T |
| Lifecycle | End of sale 2022-05-01; end of support 2027-04-30 |
| Source match | AIR-AP1840I-T-K9C: Aironet 1840i, K9C, domain T, radio/antenna/interface and lifecycle facts |
| Official manufacturer reference | Cisco Aironet 1840 Series official data sheet |
AIR-AP1840I-T-K9C Warranty
 | Product Quotation |  | Condition and Packaging |
 | Technical Support Enquiry |  | Returns and Replacement |
 | Shipping Arrangements |  | Warranty Terms |
AIR-AP1840I-T-K9C FAQ
What is AIR-AP1840I-T-K9C?
AIR-AP1840I-T-K9C Cisco Aironet 1840I WiFi 5 Mobility Express AP is a CISCO Aironet 1840 Series Access Points product supplied by YYST Global for enterprise IT procurement and infrastructure projects.
What wireless or client capacity is listed for AIR-AP1840I-T-K9C?
For AIR-AP1840I-T-K9C, the manufacturer specification lists 5 ghz radio as 4x4 802.11ac Wave 2; 4 spatial streams SU-MIMO; 3 MU-MIMO.
What interfaces and ports does AIR-AP1840I-T-K9C provide?
For AIR-AP1840I-T-K9C, the manufacturer specification lists interfaces as 2x autosensing Gigabit Ethernet, PoE input, console and USB.
Is AIR-AP1840I-T-K9C available from YYST Global?
Contact YYST Global to confirm availability for AIR-AP1840I-T-K9C, the required quantity, exact configuration, delivery destination and current lead time before ordering. A product listing does not confirm current inventory.
What is the price of AIR-AP1840I-T-K9C?
Please request a quote for AIR-AP1840I-T-K9C. Final pricing depends on stock, quantity, configuration and delivery destination.
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