Cisco

Cisco AIR-MP21G-A-K9 | 802.11g 2.4 GHz radio module | AP1200/AP1100 compatible | FCC (A domain) | up to 54 Mbps

SKU:AIR-MP21G-A-K9

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Description

Upgrade or replace the 2.4 GHz radio in Cisco Aironet 1100/1200 series access points with an 802.11g module delivering up to 54 Mbps and backward compatibility with 802.11b clients. The A-domain (FCC) variant is tuned for use in eligible regions and channel plans. Ideal for enabling dual-radio operation alongside a 5 GHz module on modular Aironet APs.

Features

- 802.11g 2.4 GHz radio adds or restores 2.4 GHz coverage
- Backward compatible with 802.11b clients
- Optimized for Cisco Aironet 1100/1200 Series modular APs
- A-domain tuning for FCC channel plans
- Enables flexible single- or dual-radio AP configurations
- Enterprise-grade reliability when paired with supported AP software

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Which access points is this module compatible with?
A: It is designed for Cisco Aironet 1100 and 1200 Series modular access points.

Q: What region is the A-domain suitable for?
A: A-domain aligns with FCC regulatory regions; always verify local compliance before deployment.

Q: Does this module include antennas?
A: No. It uses the host access point’s existing antenna ports and antennas.

Q: Can I run this with a 5 GHz radio for dual-band service?
A: Yes. In modular Aironet APs you can pair this 2.4 GHz module with a 5 GHz module for dual-radio operation.

Q: Is WPA2/AES supported?
A: Security feature availability depends on the AP platform and software version.

Technical Specifications

- Wireless standard: IEEE 802.11g (backward compatible with 802.11b)
- Frequency band: 2.4 GHz
- Max PHY data rate: up to 54 Mbps
- Regulatory domain: A (FCC)
- Intended use: radio upgrade/replacement for modular Aironet APs
- Compatibility: Cisco Aironet 1100/1200 Series access points
- Modulation: OFDM/CCK (per 802.11g/b)
- Security: WEP, WPA/WPA2 (supported features depend on AP software)
- Deployment: enables single- or dual-radio (2.4 GHz + 5 GHz) configurations

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