Cisco AIR-AP1242AG-x-K9 Full English Product Description
1. Short Official Part & License Label
AIR-AP1242AG-x-K9: Cisco Aironet 1242AG Autonomous Dual-Band Indoor Access Point, Simultaneous 2.4 GHz 802.11b/g + 5 GHz 802.11a, Runs Cisco Autonomous IOS, Four RP-TNC External Antenna Connectors (Antennas Sold Separately), Rugged Metal Enclosure, 10/100BASE-T Ethernet, Supports 802.3af PoE or Local DC Power, Hardware-Accelerated AES Encryption, Convertible to LWAPP Lightweight Mode, Multi-SSID VLAN Segmentation, Enterprise WPA/WPA2 Security, Extended Operating Temperature Range, End-of-Sale Legacy Connectorized Enterprise Wireless AP.
(Suffix "x" denotes regional regulatory domain: A=USA, E=Europe, C=China, K=Korea, etc.)
2. Full Product Overview
The Cisco AIR-AP1242AG-x-K9 belongs to the Aironet 1240AG Series, a rugged enterprise dual-band wireless access point built with durable metal housing, designed for offices, warehouses, manufacturing plants and large retail facilities with demanding RF requirements. It ships preloaded withCisco Autonomous IOS, enabling standalone operation without a wireless LAN controller. Administrators can upgrade firmware bidirectionally to convert the unit into LWAPP lightweight mode (equivalent PID AIR-LAP1242AG-x-K9) for centralized management by AireOS CUWN wireless controllers.
This platform carries two independent active radios running simultaneously:
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2.4 GHz: IEEE 802.11b/g (up to 54 Mbps)
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5 GHz: IEEE 802.11a (up to 54 Mbps)
Each radio has dual RP-TNC diversity antenna ports (4 connectors total), allowing flexible deployment of omnidirectional, directional, high-gain or sector antennas to customize coverage shape and range. Unlike integrated-antenna models such as 1131AG, the 1242AG supports precision RF planning for complex indoor environments.
Power options include IEEE 802.3af PoE for simplified ceiling and wall mounting, plus optional external 48 VDC power supply. Hardware-assisted AES encryption delivers full WPA2 (802.11i) security without throughput degradation. It supports multi-SSID virtual WLAN segmentation, enterprise authentication suites, WMM voice QoS, and Wireless Domain Services (WDS) for Layer 2 roaming across autonomous AP fleets.
Lifecycle Status: AIR-AP1242AG-x-K9 reached End-of-Sale (EoS) and End-of-Support (EoL). No new official firmware releases or feature development. Successor platforms include later connectorized AP generations and modern Wi‑Fi 6 Catalyst access points.
Key Differentiator vs AIR-AP1231G-x-K9: Simultaneous dual-band 2.4G+5G radios, four RP-TNC antenna ports, wider operating temperature range. Difference from AIR-LAP1242AG-x-K9: AIR-AP1242AG boots autonomous IOS by default; LAP variant ships factory lightweight LWAPP requiring a wireless controller. Compared to 1131AG: External antenna ports and rugged metal chassis for industrial-grade deployments.
3. Complete Hardware Physical & Interface Specifications
Form Factor & Mechanical
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Form Factor: Rugged metal indoor enclosure, wall / ceiling rail mountable
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Dimensions: 216 mm × 168 mm × 48 mm (8.5” × 6.6” × 1.9”)
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Unit Weight: 1.1 kg (2.4 lbs)
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Mounting: Keyhole slots, compatible with standard ceiling tile brackets; security lock provision
Rear Panel Interface Layout
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1× RJ45 10/100BASE-T Ethernet port, supports 802.3af PoE
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DC power barrel jack for optional 48 VDC external power injector
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RJ45 Console port for local CLI access and emergency recovery
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4× RP-TNC female antenna connectors:
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2 × RP-TNC for 2.4 GHz diversity radio
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2 × RP-TNC for 5 GHz diversity radio
(Antennas purchased separately)
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Mode reset pushbutton for factory default restoration
LED Status Indicators
Three front-panel status LEDs:
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Status: System boot sequence, operational health and fault alerts
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Ethernet: Link integrity and traffic activity
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Radio: Wireless transmit/receive activity
Power & Environmental Parameters
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Power Options: IEEE 802.3af PoE or external 48 VDC power supply
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Typical power consumption: 13 W
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Operating Temperature: -20°C to 55°C (-4°F to 131°F)
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Storage Temperature: -40°C to 65°C (-40°F to 149°F)
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Humidity: 10%–90% non-condensing relative humidity
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Regulatory Certifications: UL 60950, CE, FCC Class B, Wi-Fi Alliance certified
Radio Hardware Specifications
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Standards: IEEE 802.11b / 802.11g
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Data Rates: 54, 48, 36, 24, 18, 12, 9, 6 Mbps (g); 11, 5.5, 2, 1 Mbps (b)
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Antenna Interface: Dual RP-TNC diversity ports
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Data Rates: 54, 48, 36, 24, 18, 12, 9, 6 Mbps
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Antenna Interface: Dual RP-TNC diversity ports
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Transmit power: Software configurable, capped per regional regulatory domain
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Maximum simultaneous BSSIDs (SSIDs): Up to 16 per radio
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Diversity receive improves resistance to multipath fading
Embedded Hardware Resources
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CPU: PowerPC 405
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RAM: 32 MB
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Flash Storage: 16 MB for IOS firmware and persistent configuration
4. Core Autonomous IOS WLAN Feature Suite
1. Dual-Band RF & External Antenna Flexibility
Independent radio configuration, adjustable transmit power, dynamic rate scaling, beacon interval tuning, mixed-mode protection for legacy clients, DTIM optimization. Supports custom antenna gain configuration for accurate RF site survey planning.
2. Multi-SSID Virtual WLAN Segmentation
Multiple isolated SSIDs, independent VLAN tagging per WLAN, SSID broadcast enable/disable, wireless client isolation between users on the same broadcast domain.
3. Enterprise Wireless Security Suite
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Encryption: WEP 40/128-bit, WPA (TKIP), WPA2 (AES-CCMP, hardware accelerated)
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Authentication: Open, Shared Key, 802.1X, LEAP, PEAP, EAP-TLS, EAP-FAST
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Additional security: MAC address filtering, rogue AP detection, broadcast key rotation
4. Voice & Multimedia QoS
Wi-Fi Multimedia (WMM) traffic prioritization, 802.1p CoS mapping, traffic classification optimized for VoWLAN voice over Wi-Fi deployments.
5. Wireless Mobility
Wireless Domain Services (WDS) enabling fast Layer 2 roaming between autonomous APs; proxy Mobile IP support for Layer 3 mobility scenarios.
6. Management & Diagnostics
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Administration: Embedded HTML web GUI, IOS CLI via SSH, Telnet or serial console
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Monitoring: SNMPv2c, syslog, real-time client association tables, radio statistics
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Firmware upgrade via TFTP; bidirectional conversion between autonomous IOS and LWAPP lightweight images
7. Network Integration
Native interoperability with Catalyst switched infrastructure, trunk VLAN support, DHCP relay, static routing capabilities.
5. Typical Deployment Scenarios
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Standalone dual-band wireless coverage for warehouses, manufacturing facilities and large retail sites requiring directional or high-gain external antennas
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Legacy distributed autonomous WLAN architecture without centralized wireless controllers
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Mixed-client environments supporting legacy 2.4 GHz barcode scanners/IoT and modern 5 GHz laptops
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Migration staging platform for converting autonomous AP fleets to lightweight controller-managed CUWN architecture
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Lab environments for legacy Cisco autonomous IOS wireless configuration and RF planning training
6. Short Sales Listing Tagline
Cisco AIR-AP1242AG-x-K9 Legacy Aironet 1242AG Autonomous Dual-Band Indoor Access Point, Simultaneous 2.4GHz 802.11b/g + 5GHz 802.11a, Runs Cisco Autonomous IOS, Four RP-TNC External Antenna Ports (Antennas Not Included), Rugged Metal Enclosure, Extended Operating Temperature, 10/100BASE-T with 802.3af PoE, Hardware AES Encryption, Multi-SSID VLAN Tagging, WPA/WPA2 Enterprise Security, Convertible to LWAPP Lightweight Mode, End-of-Sale Connectorized Industrial-Grade Enterprise Wireless Access Point
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