SixPakPlus (Type 1)                                 AST Part Number 201177-001

The SixPakPlus is a multi-function Memory Expansion board designed for the IBM
PC and XT and 100% compatibles running at 4.77 MHz.  In it's standard
configuration, it comes with anywhere between 64K and 384K of RAM using
industry standard 64K dynamic RAM chips, a Clock/Calendar a Serial Port
configurable as COM1: or COM2: and a Parallel Port configurable as LPT1 or
LPT2.  All memory installed on the SixPakPlus is designed to expand your PC to
it's 640K maximum.  It does not support extended or EMS/EEMS type memory.  In
addition to the basic configuration, it can be configured with a Game Port.

Note that the memory chip speed must be 200 nsec.

Please Refer to Tech Bulletin #0004 for more information on the Memory Chips.


SWITCH SETTINGS

          STARTING ADDRESS          MEMORY INSTALLED ON 6-PAK

            SW1  SW2  SW3              SW4  SW5  SW6  SW7  SW8
            ---  ---  ---              ---  ---  ---  ---  ---
     64K    OFF  OFF  OFF        0K    OFF  OFF  OFF  N/A   P
    128K    OFF  OFF   ON       64K    OFF  OFF   ON  N/A   A
    192K    OFF   ON  OFF      128K    OFF   ON  OFF  N/A   R
    256K    OFF   ON   ON      192K    OFF   ON   ON  N/A   I
    320K     ON  OFF  OFF      256K     ON  OFF  OFF  N/A   T
    384K     ON  OFF   ON      320K     ON  OFF   ON  N/A   Y
    448K     ON   ON  OFF      384K     ON   ON  OFF  N/A
    512K     ON   ON   ON

    SW7 - PARITY ENABLE (Recommended "ON" at all times)
    SW8 - NOT USED


JUMPER SETTINGS

    PORT ENABLE JUMPER BLOCK: (Reading from Left to Right)
        1 - Installed to Enable Serial Port as COM1:   (3F8)
        2 - Installed to Enable Serial Port as COM2:   (2F8)
        3 - Installed to Enable Parallel Port as LPT1:
        4 - Installed to Enable Parallel Port as LPT2:
        5 - Installed to Enable Game Port              (201)
        6 - Installed to Enable Clock/Calendar         (2C0)

    IRQ ENABLE JUMPER BLOCK:
       3S - IRQ 3; Installed if COM1: is Enabled
       43 - IRQ 3; Installed if COM2: is Enabled
        4 - N/A; Leave open
        5 - N/A; Leave open
        7 - N/A; Leave open
        2 - N/A; Leave open

    IRQ-7 ENABLE JUMPER BLOCK:
        Should be installed if the Parallel Port is LPT1














RS232 JUMPER SETTINGS

    The RS232 configuration block is made up of three sets of three pins each.
    Their function is to minimize the need for making special I/O cables for
    some unique serial devices. The normal setting in nearly all cases is to
    install three jumpers connecting the middle and left pin in each row. In
    rare instances, a device may require that the CTS, DSR, or DCD signals be
    forced true. In these cases, move the corresponding jumper to connect the
    center and right pin.


JUMPER AND SWITCH LOCATION

    ͻ 
                                                                   Ķ
                              BATT                        RS232 *   
                                                         JUMPER *   
                                                  SW-1    BLOCK *   
                                               +---------+          
                                               | S1   S8 |          
                                               +---------+          
                                                                    
                               PORT ENABLE  ******  *   IRQ JUMPER  
                               JUMPER BLOCK        IRQ7  ******    Ķ
    ͻ            ͼ 
                                                  ͼ      
                                                                      
