http://www.cisco.com/univercd/cc/td/doc/product/iaabu/csids/csids13/8827_01.htm#wp1092894
Supported Platforms
Cisco IPS 6.0 is supported on the following platforms:
?IDS-4215 Series Sensor Appliances
?IDS-4235 Series Sensor Appliances
?IPS-4240 Series Sensor Appliances
?IDS-4250 Series Sensor Appliances
?IPS-4255 Series Sensor Appliances
?IPS-4260 Series Sensor Appliances
?WS-SVC-IDSM2 series Intrusion Detection System Module (IDSM-2)
?NM-CIDS Intrusion Detection System Network Module
?ASA-SSM-AIP-10 series Cisco ASA Advanced Inspection and Prevention Security Service Modules (AIP-SSM)
?ASA-SSM-AIP-20 series Cisco ASA Advanced Inspection and Prevention Security Service Modules (AIP-SSM)