Data Sheet AXN/BCU/401 Axon Backplane Controller Data Sheet Download Resource Login to download this resource Username Enter your Curtiss-Wright Defense Solutions username. Password Enter the password that accompanies your username. Forgot password? Don’t have an account? Register here. Axon backplane controller - PTPv1/v2 client or Grandmaster, dual Ethernet output. The AXN/BCU/401 is a dual-port full-duplex, Gigabit Ethernet, Axon backplane controller packet programmer and an IPv4 data packets transmitter