ACS, INC.

ACS-1000

Processor                  8088
Processor Speed            4.77/8MHz
Chip Set                   Unidentified
Video Chip Set             None
Maximum Onboard Memory     1MB
Maximum Video Memory       None
Cache                      None
BIOS                       Unidentified
Dimensions                 305mm x 216mm
I/O Options                Floppy drive interfaces (2), SASI connector,
                           parallel port, serial ports (2), serial bus
                           connector
NPU Options                8087

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Reset switch                E2       Serial port                 P7

  Speaker                     P2       Parallel port               P8

  Floppy drive interface      P3       Reset switch                P9

  Floppy drive interface      P4       SASI interface              P10

  Serial bus connector        P5       External battery            P11

  Serial port                 P6

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

  »   Normal reset operation enabled           E2              Open

      Reset controlled by power supply         E2             Closed
      signal

  »   POST normal operation                   S1/1             Off

      POST special test                       S1/1              On

  »   NPU not installed                       S1/2              On

      NPU installed                           S1/2             Off

  »   BIOS type select 8K/16K                S1/10             Off

      BIOS type select 32K                   S1/10              On

                       DRAM CONFIGURATION

    Size        Bank 0       Bank 1      Bank 2       Bank 3

    64KB         64K          None        None         None

    128KB        64K          64K         None         None

    192KB        64K          64K          64K         None

  256KB (A)      64K          64K          64K          64K

  256KB (B)      256K         None        None         None

    512KB        256K         256K        None         None

    640KB        256K         256K         64K          64K

     1MB         256K         256K        256K         256K

  Note: The size of the chips are unidentified.

             DRAM SWITCH CONFIGURATION

    Size         S1/3         S1/4        S1/9

    64KB          On           On          Off

    128KB        Off           On          Off

    192KB         On          Off          Off

  256KB (A)      Off          Off          Off

  256KB (B)       On           On          On

    512KB        Off           On          On

    640KB        Off          Off          On

     1MB          On          Off          On

             CPU SPEED SELECTION

         Speed                   E1

  Keyboard selectable    Pins 1 & 2 closed

        4.77MHz          Pins 2 & 3 closed

         8MHz            Pins 3 & 4 closed

                      PARALLEL PORT ADDRESS SELECTION

                  Setting                                 E3

  »      LPT2 if another device is set as         Pins 1 & 2 closed
       LPT1. It is set as LPT1 if no other
              device is installed.

                LPT1 at all times                 Pins 3 & 4 closed

                    SERIAL PORT ADDRESS SELECTION (P6)

               Setting                                 E4

  »                COM1                         Pins 1 & 2 closed

                   COM2                         Pins 3 & 4 closed

                   COM3                         Pins 5 & 6 closed

                   COM4                         Pins 7 & 8 closed

                   SERIAL PORT INTERRUPT SELECTION (P6)

                 IRQ                                   E6

                   IRQ2                         Pins 5 & 6 closed

                   IRQ3                         Pins 3 & 4 closed

  »                IRQ4                         Pins 1 & 2 closed

                    SERIAL PORT ADDRESS SELECTION (P7)

               Setting                                 E5

                   COM1                         Pins 1 & 2 closed

  »                COM2                         Pins 3 & 4 closed

                   COM3                         Pins 5 & 6 closed

                   COM4                         Pins 7 & 8 closed

                   SERIAL PORT INTERRUPT SELECTION (P7)

                 IRQ                                   E7

                   IRQ2                         Pins 5 & 6 closed

  »                IRQ3                         Pins 3 & 4 closed

                   IRQ4                         Pins 1 & 2 closed

                             MONITOR SELECTION

            Setting                     S1/5                  S1/6

           None installed                On                    On

  »         80 x 25 color                On                   Off

            40 x 25 color                Off                   On

             Monochrome                  Off                  Off

                          FLOPPY DRIVE SELECTION

      Drives installed                S1/7                   S1/8

                 1                     On                     On

  »              2                    Off                     On

                 3                     On                    Off

                 4                    Off                    Off