Testing Ethernet Based Avionics in Aircraft

Since the 1970’s, military aircraft avionics systems have communicated via the MIL-STD-1553 bus. This has proven to be a very effective method, and is still in widespread use today. MIL-STD-1553 is a time division multiplexed command and response bus with a bus controller initiating all communications on the bus. The bus operates at 1 Mbps, and is dual redundant for reliable operation.