Kaba Benzing Network Terminal Adapter (NTA). It serves the connection of Kaba Benzing terminals with RS-485 or RS232C interface to an Ethernet. Two versions are available. One version for 1 terminal and one version for up to 16 terminals (BETA 100 or 1600 respectively). Successor model is the BETA 1600/2, also for the connection of up to 16 terminals and renewed Ethernet connection.