Int E0  - Dr Multiuser DOS - "a_break" - Send Break To Aux Device          [O]

   CL = B2h
   DX = duration of break in system ticks (0001h-FFFFh)

Return: AX = status
       0000h successful
       break signal completed
       FFFFh failed
       CX = error code

Note:  if the AUX device is currently owned by another process, this call will
     block until the device becomes available

See Also: INT E0/CL=A5h,INT E0/CL=B1h