Representative array configuration files for Cycle 2 are distributed with CASA version 4.2. The location of the files in the CASA installation can be found using this command at the CASA prompt:

os.getenv('CASAPATH').split(' ')[0] + '/data/alma/simmos/'

The Cycle 2 and Cycle 1 configuration files are also linked to from the "Array Configuration Files" section of the Documents and Tools page in the ALMA Science Portal. Configuration files for Cycle 0 are available from the Cycle 0 Documentation page.