DTK Computers

     Technical Information Sheet for PEM1600
     S=shorted, O=open               DIP switch 1=on 0=off
     Utility Diskette is UTILDSK3.1_0      
     Uses 32bit Memory board PEI-301
     
     SW1:1 2 3 4 5 6 7 8 9 10  Function
         0 + + + + + + + + +   COM1=Enabled
         1 + + + + + + + + +   COM1=Disabled
           0 + + + + + + + +   COM2=Enabled
           1 + + + + + + + +   COM2=Disabled
             0 + + + + + + +   LPT =Enabled
             1 + + + + + + +   LPT =Disabled
               0 + + + + + +   LPT =LPT1
               1 + + + + + +   LPT =LPT2
                 1 0 + + + +   COM1=IRQ4
                 0 1 + + + +   COM1=IRQ3
                     1 0 + +   COM2=IRQ4
                     0 1 + +   COM2=IRQ3
                         1 0   LPT =IRQ7
                         0 1   LPT =IRQ5

     W1:Reset Switch                 W3:16-bit I/O Wait State
        <1> Hardware Reset              1-2 S  One WS
        <2> Ground                      2-3 S  Two WS

     W4:8-bit I/O Wait State         W6:Battery Connector
        1-2 S  4 WS                     <1> 6 VDC
        2-3 S  5 WS                     <2> Not used
                                        <3> Ground
     W7:Speaker connector               <4> Ground
        <1> Data out
        <2> Key                      W8:Video Select
        <3> Ground                      1-2 S  Monochrome
        <4> VCC                         2-3 S  Color

     W10:Turbo Switch Connector      W11:Keyboard lock
         1-2 Hardware Switch             <1> Power LED
         2-3 S Keyboard Control          <2> Key
         No Cap 16 MHz always            <3> Ground
                                         <4> Keyboard inhibit
     W12:Turbo LED                       <5> Ground
         <1> Ground        
         <2> LED power               W20:Math Coprcessor Select
         <3> Ground                      1-2 S Installed
                                         2-3 S Not Installed
     J2:Power Connector
        <1> +5VDC                 <7>  Ground
        <2> +5VDC                 <8>  Ground
        <3> +5VDC                 <9> -12VDC
        <4> -5VDC                <10> +12VDC
        <5>  Ground              <11> +5VDC
        <6>  Ground              <12>  Power Good