The Network network adapters with TCP/IP protocol have been developed for peripherals with a serial interface. Thanks to these adapters devices become networkable, such as:

DNC adapters with Heidenhain or Mazatrol protocol
NetworkDNC is known in the market as innovator of network-based DNC systems (Direct Numerical Control) and MDCPDC systems (Machine Data Collection/Production Data Collection).
All over the world many thousends of machine tools are networked with NetworkDNC network adapters - many of them in the leading companies of their branch.