hub(7)               INTERACTIVE UNIX System               hub(7)



          NAME
               hub - Bell Technologies Hub6 serial card

          DESCRIPTION
               A Hub6 card provides six additional serial ports for IBM PC
               AT computers and compatibles.  A single machine may contain
               up to four Hub6 cards, providing a total of 24 additional
               serial ports.  Each line attached to a Hub6 serial card
               behaves as described in asy(7) and may be set to run at up
               to 9600 baud; see tty(7) for the appropriate encoding.

               The Hub6 card uses the same 8250 communications and modem
               control chip used by IBM in the standard IBM Asynchronous
               Adaptor card.  This part contains on-chip hardware for a
               large array of serial line and modem control functions,
               including fully automatic interrupt signalling.

          FILES
               /dev/tty4[a-x]
               /dev/tty4[A-X]       with modem controls
               /etc/conf/pack.d/hub/space.c

          SEE ALSO
               asy(7), termio(7), tty(7).
               signal(2) in the INTERACTIVE SDS Guide and Programmer's
               Reference Manual.

          ADDED VALUE
               This entry, supplied by INTERACTIVE Systems Corporation, is
               an extension of UNIX System V.

























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