8566/68AB: What is the part number for the IF interconnect cables? Question: 8566/68AB: What is the part number for the IF interconnect cables? Answer: There are 2 cables that connect the 85662A (IF section) to the 85660A/B/85680A/B. They are: 85662-60093 for the coax interconnect. 85662-60220 for the bus (digital) interconnect. Revision 1.0 03 Jan 2000 MM