Data Sheet February 27, 2024 AXN/PCM/401 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. The AXN/PCM/401 is a dual PCM decommutator that can accept two independent PCM streams. Data from each stream is individually parsed into a minor frame buffer from which it can be read coherently over the backplane. AXN/PCM/401 The AXN/PCM/401 is a dual PCM decommutator that can accept two independent PCM streams.