Designed to eliminate dedicated NTDS (Navy Tactical Data System) adapters and bulky cables for NTDS communication, Virtual NTDS provides emulation of standard Navy Tactical Data System operations. Separate channels for Data and External Interrupts are provided, and aborting conditions, timeouts, and other termination events are supported. With V-NTDS, NTDS Type A device can now communicate with other parallel types (Type B/C/H) or even with NTDS Serial data types (Type D/E).