USING THE BB1004/BB1008/BB2016 WITH BBS SOFTWARE
        ************************************************


     The BB1004/BB1008/BB2016 boards are compatible with many BBS
software packages.  The information provided below should assist
you with setting up the BocaBoard for use with your bulletin board
software.

     I/O PORT ADDRESS
     ****************

     The starting I/O port address for the first port of the
BocaBoard is set with jumpers located on the BocaBoard.  I/O
addresses are assigned in blocks of eight 10-bit addresses.

     Your software may ask for the starting address and the offset
for additional ports.  Check your software documentation for
supported addresses and insure that the BocaBoard is set for an
address supported by your software.

     The offset for additional ports on all BocaBoards is 8.  

     For example, if you have a BB1008 set at address 0100, during
the BBS software installation, you would enter the following:

     BASE I/O ADDRESS:  0100
     # OF PORTS:        8
     OFFSET:            8



     PORT STATUS REGISTER
     ********************

     The BocaBoards are designed so that all of the ports on the
board can share one interrupt request level (IRQ).  For example, if
the IRQ jumper on the BB1008 is set to 5, all 8 ports will share
IRQ 5.  This is accomplished through the use of a Port Status
Register (PSR) which is provided to identify which port(s) on the
board caused an interrupt.  This register appears at the eighth or
last address for each port.  Remember: each port on the board uses
a block of eight addresses.  All ports share the same register with
one bit in the register representing the interrupt status of each
port.

     Some software (Major BBS, for example) does not require the
use of an interrupt or a Port Status Register.  If this is the
case,you should remove the IRQ jumper from the BocaBoard.

     If your software DOES require an interrupt and a Port Status
register, make sure that the BocaBoard is jumpered for an IRQ
supported by your software.  Then, during installation of the 
software, you would input the appropriate information as in the
following example:

     You have a BB1008, set to I/O address 0100 and IRQ 5.  


     Your software prompts:              You respond:
     ________________________            ______________

     Base I/O Address :                   0100

     # Of Ports :                         8

     Offset:                              8

     Shared IRQ:                          5

     1st Port PSR Address:                0107




     IMPORTANT NOTES
     ***************

     The RJ-12 to DB-25 connectors shipped with the BB1004/BB1008
are pinned-out for terminals (DTE), not modems (DCE).  These
connectors WILL NOT WORK with your modem.  See the wiring diagram
in the BocaBoard Manual for correct wiring.

     If you have the BB2016, which uses RJ-45 (10-wire) cable, and
you do not wish to make your own RJ-45 to DB-25 DCE connector, Boca
Research provides the IODCE2, available through your supplier. 
This includes two 2-meter RJ-45 (10-wire) cables and two RJ-45 to
DB-25 DCE connectors for use with modems.

     As the BB1004/BB1008 use six-wire RJ-12, all of the signals
necessary for use with high-speed modems are not provided.  We
recommend that users of 14.4 Kbps modems use the BB2016, which
provides ten-wire RJ-45 connections.  See the wiring diagram in
the BocaBoard Manual for pin-outs and wiring diagrams.

     We recommend that you contact the BBS Software Vendor for
questions about compatibility between the BocaBoards and their
software.  The information contained above concerning I/O
addresses, port offset, and port status registers will provide the
software vendor with the information necessary to determine if the
BocaBoards will work properly with the software.


     Boca Research currently runs two Bulletin Board services, one




using Galacticomm (Major BBS) and one using TBBS, both in
conjunction with the BB2016.  Other BBS services have not been
tested.














































02/03/94