AIR-AP1852I-A-K9C Cisco Aironet 1852i Indoor Access Point

AIR-AP1852I-A-K9C exact order identity

AIR-AP1852I-A-K9C is a 1852i indoor access point with integrated omnidirectional antennas in the Cisco Aironet 1850 Series. This exact SKU combines regulatory-domain token A with a single-unit configurable K9C order. The platform is a dual-band 802.11ac Wave 2 access point with four 5 GHz spatial streams in single-user operation and three in multiuser operation.

Antenna and environmental boundary

Cisco rates the internal antenna system at 3 dBi for 2.4 GHz and 5 dBi for 5 GHz, with 360-degree horizontal beamwidth. No external antenna is selected by this SKU. Preserve enclosure orientation, bracket, mounting height and post-install coverage because placement determines how the integrated pattern is used.

Order and controller boundary

Cisco lists K9C as a configurable controller-based order, and its lifecycle table describes affected K9C lines as Mobility Express products. Retain the final domain and software role on the quotation and received unit. Prove the intended controller or Mobility Express state instead of inferring it from the suffix alone.

A regulatory-domain evidence

Cisco lists this profile as 2.4 GHz channels 1-11; 5 GHz blocks at 5.180-5.320, 5.500-5.700 excluding 5.600-5.640, and 5.745-5.825 GHz. The A plan combines lower, middle and upper 5 GHz blocks, but the documented gap inside the middle block matters. The RF design and controller template must preserve that exclusion instead of treating the listed span as continuous. Export the controller channel list after provisioning and compare it with the approved A-domain record. Investigate any channel inside the excluded middle sub-block or any missing approval evidence before service activation.

Procurement inference: this profile is useful only when the destination approval and controller expose the documented lower, split-middle and upper choices. The middle exclusion should appear explicitly in the site worksheet, because a broad frequency-range label can conceal it. When migrating controllers, compare exported enabled-channel lists before and after the move; do not use unchanged SSID service as proof that the regulatory plan remained intact.

Power and interface boundary

The 1852 provides a PoE Gigabit uplink and a Gigabit AUX port for link aggregation. Cisco states that 802.3af disables AUX and USB on both antenna forms and reduces the 1852e 2.4 GHz radio from 3x4 to 2x3. Record negotiated power before promising the complete interface and radio state.

Deployment evidence worksheet

Mechanical installation record

List the bracket, ceiling or wall interface, enclosure requirement, safety restraint, service clearance and cable-entry plan before scheduling installation. Receiving should identify missing mechanical items before the access point reaches site. Photograph the mounted label and final cable entry, then record how the unit can be reached for replacement. A complete electronic order can still be an unusable deployment kit when mechanical dependencies are omitted. The 1852i and 1852e have different operating-temperature ranges, and an external-antenna deployment also requires a complete cable and mounting bill of materials.

Serial-level asset control

Capture chassis serial, base MAC address, carton reference, deployment site, controller assignment and asset owner. Reconcile the identifiers against the purchase line before activation. Multi-unit cartons require an entry for every physical access point; a carton SKU alone cannot show which unit was installed, held as a spare or returned. This record is also needed to trace support entitlement, replacement history and monitoring ownership. If the product came from a ten-unit pack, the 1852 carton identity must be expanded into ten individual records before support, return or replacement handling.

Country approval retention

Save the Cisco compliance lookup result, lookup date, deployment country, approved regulatory token and reviewer. If the destination changes, stop and repeat the approval rather than moving the unit on the strength of an earlier purchase. Compare the controller country setting and available channels with the retained evidence. Regulatory eligibility is a deployment condition and cannot be inferred from connector fit, stock location or a similar-looking part number. Cisco explicitly makes the customer responsible for country approval; retain the lookup alongside the 1852's controller country and enabled-channel evidence.

Quotation substitution gate

Compare antenna form, regulatory token, configuration suffix, pack quantity and complete Cisco part number on the authorized quotation. Treat any changed token as a substitution that requires a new technical and regulatory review. Procurement should not accept a nearby Aironet 2802 line merely because the family name matches. Preserve the approved line, received label and exception decision so the final asset can be traced to the exact order reviewed here. A K9, K9C, K910, K910C, antenna-form or regulatory-token change is a different 1852 procurement line and must not be accepted as a cosmetic substitution.

Interference baseline

Preserve the pre-install and post-install noise, neighboring-radio and channel-occupancy observations for the selected location. Record any controller-driven channel change during acceptance. If the regulatory profile limits the channel choices, state how that constraint affected reuse and mitigation. This baseline gives future troubleshooting a reference point and prevents an unrelated interference change from being attributed to the hardware order. The 1852 domain table varies materially by token, so preserve interference observations against the exact enabled-channel list rather than a generic country template.

Replacement dependency map

Map this unit to controller, licenses, authentication services, switch power, cable, bracket, antenna design and monitoring objects. For an end-of-sale platform, state which dependencies can be reused by the planned Catalyst migration and which require change. A nominal access-point replacement can fail when the surrounding platform was never inventoried. Keep the map with the asset rather than only in a one-time project file. Cisco names the Catalyst 9115AX family as the migration option in the lifecycle bulletin; map controller, power, cabling, mount and antenna changes before replacement.

Receiving inspection

At receipt, compare model label, regulatory token, antenna form, quantity, serials and visible condition with the authorized order. Photograph labels before cartons are separated. Quarantine shortages, mixed units, damaged connectors or unapproved substitutions. Do not rely on a distributor description as evidence that the exact Cisco order arrived. Close the inspection only when every physical unit is accounted for. Receiving inspection should distinguish the internal-antenna 1852i from the external-antenna 1852e and should verify all carton quantities before labels are separated.

Fault-domain separation

Build the acceptance record so power, wired link, controller join, radio state, authentication and application reachability can be reviewed independently. Preserve timestamps and device identifiers across switch and controller logs. When a test fails, identify the failing boundary before replacing hardware. This avoids classifying a cable, policy or controller problem as an access-point defect and creates evidence that can be reused during support escalation. Use controller, switch and client timestamps to separate a PoE/AUX limitation, CAPWAP issue, RF condition and authentication failure before declaring a hardware defect.

Lifecycle decision

Cisco ended sale of the Aironet 1850 Series on 1 May 2022, ended software maintenance on 1 May 2023 and lists 30 April 2027 as the last support date. Cisco identifies Catalyst 9115AX as the migration family. Available inventory does not extend those milestones.

Related Aironet 1852 order records

• AIR-AP1852E-A-K9 - compare antenna form and domain evidence.
• AIR-AP1852E-A-K9C - compare antenna form and domain evidence.
• AIR-AP1852I-AK910C - compare order form and domain evidence.

Official evidence: Cisco Aironet 1850 Series data sheet; Cisco Aironet 1850 hardware guide; Cisco Aironet 1850 lifecycle bulletin; and Cisco wireless compliance tool.