2520-2-1 2520218JRC 252-0234-001 252-0235-000 2520-24-10-10-10/A 2520-24-12-10-10/A 2520-24-18-10-10/A 2520-24-20-10-10/A 2520-24-9-10-10/A 2520-24MHZ/20P