Hi Sam,
It looks like 2.15.1 supports the 1250 series;
This section lists new features in release 2.15.1.
WLSE Modules Support Cisco Aironet 1250 Series Access Points
The Cisco Aironet 1250 Series Access Point is the industry's first business-class access point based on the IEEE 802.11n draft 2.0 standard. It provides reliable WLAN coverage to improve the end-user experience for both existing 802.11a/b/g clients and new 802.11n clients. The access point offers combined data rates of up to 600 Mb/s to meet the most rigorous bandwidth requirements. Users can now rely on wireless networks to deliver a similar experience to wired networks, providing mobile access to high-bandwidth data, voice, and video applications, irrespective of their location.
The Cisco Aironet 1250 Series Access Point is a next-generation wireless solution with unparalleled throughput and improved reliability and predictability for wireless connectivity. The robust Cisco Aironet 1250 series is a modular platform designed to be easily field-upgradable to support a variety of wireless capabilities. This modularity allows businesses to deploy existing wireless technologies today with the confidence that their network investment will extend to support emerging and future wireless technologies.
Detailed information and configuration procedures for the 1250 series access point are in Chapter 6 of the Cisco IOS Software Configuration Guide for Cisco Aironet Access Points, 12.4(10b)JA & 12.3(8)JEC, which is available on Cisco.com at the following URL:
http://cisco.com/en/US/products/ps6973/tsd_products_support_series_home.html
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Note WLSE Network Management (Discovery, Inventory, Faults, Reports, Configuration and Firmware) modules support 1250 series access points that contain 802.11n radios. However, 802.11n radios are not supported in WLSE Radio Management..
From these release notes;
http://www.cisco.com/en/US/docs/wireless/wlse/2.15.1/release/notes/RN_2_15_1.html#wp40391
Hope this helps!
Rob
