Cisco

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

SKU:AIR-MP21G-E-K9

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Description

Add 2.4 GHz Wi‑Fi to Cisco Aironet 1100/1200 series access points with an 802.11g module delivering up to 54 Mbps and 802.11b backward compatibility. The E-domain (ETSI) variant is tuned for EU/ETSI channel plans. Ideal for refreshing legacy 2.4 GHz coverage or enabling dual-radio operation with a 5 GHz module.

Features

- 2.4 GHz 802.11g radio for legacy and mixed-client environments
- Backward compatibility with 802.11b
- ETSI E-domain tuning for European deployments
- Seamless fit for Aironet 1100/1200 modular APs
- Enables dual-radio architectures
- Flexible security options depending on 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: What regions is the E-domain intended for?
A: E-domain is intended for ETSI regions such as the EU; confirm compliance for your country.

Q: Will this work in an Aironet 1200 Series AP?
A: Yes, it is designed for Cisco Aironet 1100/1200 Series modular access points.

Q: Are antennas included?
A: No, the module uses the host AP’s antenna connectors and antennas.

Q: Can this be used alongside a 5 GHz module?
A: Yes, it supports dual-radio operation when paired with a compatible 5 GHz module in modular APs.

Q: Is there any configuration needed after installation?
A: Yes, you must configure radio settings (channels, power, security) via the AP’s management interface.

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: E (ETSI)
- 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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