Cisco Aironet AIR-ANT2535SDW-R and AIR-ANT2535SDW-RS antennas operate over the 2.4 GHz and 5 GHz Wi-Fi bands and is designed for indoor use with the Cisco Aironet 1600, 2600, 2800, 3600, 3700, 3800, and Cisco Catalyst 9120AXE series access points. The antenna utilizes an omnidirectional radiation pattern to achieve a broad coverage area.
The AIR-ANT2535SDW-RS antenna includes circuitry to enable self-identification of the antenna by the Cisco access points. The antenna has a built-in EEPROM that can be read by the AP to automatically configure the antenna type and gain in the wireless controller.
This antenna is designed for use with Cisco access points having dual-band antenna ports. These include the Cisco Aironet 1600, 2600, 3600, 3700, and Cisco Catalyst 9120AXE series access points. The antenna is intended solely for indoor deployments.
The Self Identifying Antenna model AIR-ANT2535SDW-RS= is supported only on Cisco Catalyst 9800 Series Wireless Controllers running an IOS-XE 17.4.1 release or a later release. This antenna model is not supported on Cisco AireOS Wireless Controllers.

*When the antenna is mounted to a Cisco Aironet 1600, 2600, 3600, 3700, or Cisco Catalyst 9120AXE access points.
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