ap3g1-k9w7-tar.153-3.jf15.tar is a specialized firmware image for Cisco Aironet wireless access points (APs). This specific version allows certain older Cisco hardware to operate in Autonomous Mode
Technical Analysis and Operational Procedures for the ap3g1-k9w7-tar.153-3.jf15.tar Cisco IOS Firmware Bundle ap3g1-k9w7-tar.153-3.jf15.tar
AP# show version | include IOS Cisco IOS Software, ap3g1 Software (ap3g1-k9w7-mx), Version 15.3(3)JF15 ap3g1-k9w7-tar
: Identifies the hardware family, primarily the Cisco Aironet 3500 series . ap3g1 Software (ap3g1-k9w7-mx)