
COMPUDYNE

UTD 4800AIO EISA VESA ZIF

Processor         80486DX/80486DX2
Processor Speed   25/33/40/50(internal)/50/66(internal)MHz
Chip Set          OPTI
Video Chip Set    None
Maximum Onboard   Unidentified
Memory
Maximum Video     None
Memory
Cache             64/128/256/512/1024KB
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       32-bit VESA local bus slot, floppy drive interface, IDE
                  interface, parallel port, serial ports (2)
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Serial port 1               P4       Reset switch                P9

  Serial port 2               P5       IDE interface LED          P10

  Parallel port               P6       Speaker                    P11

  IDE interface               P7       Power LED & keylock        P12

  Floppy drive                P8       32-bit VESA local bus      SL1
  interface                            slot

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     IDE I/O channel RDY signal            J1               Open
      select none

      IDE I/O channel RDY signal            J1              Closed
      select drive

     Flash BIOS programming disabled       J2               Open

      Flash BIOS programming enabled        J2              Closed

     Factory configured - do not           J3           Unidentified
      alter

     Factory configured - do not           J4           Unidentified
      alter

     ISA BUS ready timing ISA RDY          J26              Open

      ISA BUS ready timing EISA RDY         J26             Closed

     READY RTN generation select           J28        Pins 1 & 2 closed
      local bus

      READY RTN generation select           J28        Pins 2 & 3 closed
      system

     VL BUS not delayed                    J29             Closed

      VL BUS delayed                        J29              Open

     Monitor type select color             J31             Closed

      Monitor type select monochrome        J31              Open

                   DRAM CONFIGURATION

  Note: The maximum amount of memory is unidentified.

                            CACHE CONFIGURATION

     Size          Bank 0        Bank 1       TAG (U61)          TAG

     64KB        (4) 8K x 8    (4) 8K x 8    (1) 64K x 1    Unidentified

     128KB       (4) 32K x 8      None       (1) 64K x 1    Unidentified

     256KB       (4) 32K x 8   (4) 32K x 8   (1) 64K x 1    Unidentified

     512KB       (4) 64K x 8   (4) 64K x 8   (1) 64K x 1    Unidentified

      1MB        (4) 128K x    (4) 128K x    (1) 64K x 1    Unidentified
                     8             8

  Note: The location of banks 0 & 1 is unidentified.

                   CACHE JUMPER CONFIGURATION

   Size        J19        J20        J21        J22       J23

   64KB       Open       Open       Open       Open       Open

   128KB      Open      Closed      Open       Open       Open

   256KB     Closed     Closed      Open       Open       Open

   512KB     Closed     Closed     Closed      Open      Closed

    1MB      Closed     Closed     Closed     Closed     Closed

                     CACHE JUMPER CONFIGURATION(CONT)

     Size          J24            J25            J27             J30

     64KB          Open          Open         Pins 2 & 3      Pins 2 & 3
                                               closed          closed

    128KB          Open         Closed        Pins 1 & 2      Pins 1 & 2
                                               closed          closed

    256KB         Closed        Closed        Pins 2 & 3      Pins 2 & 3
                                               closed          closed

    512KB         Closed        Closed        Pins 1 & 2      Pins 1 & 2
                                               closed          closed

     1MB          Closed        Closed        Pins 2 & 3      Pins 2 & 3
                                               closed          closed

                            CPU SPEED SELECTION

   Speed     J11     J12       J13       J15      J16     J17       J18

   25MHz     2 &     Open      Open    Closed    Open     Open    Closed
              3

   33MHz     2 &    Closed     Open    Closed    Open     Open     Open
              3

   40MHz     2 &     Open     Closed    Open     Open     Open    Closed
              3

  50iMHz     2 &     Open      Open    Closed    Open     Open    Closed
              3

   50MHz     1 &    Closed    Closed   Closed    Open     Open    Closed
              2

  66iMHz     2 &    Closed     Open    Closed    Open     Open     Open
              3

  Note: Pins designated should be in the closed position.

                           DMA CHANNEL SELECTION

  Channel      J5         J6        J7         J8        J9        J10

     5        Open       Open     Closed     Closed     Open       Open

     6        Open      Closed     Open       Open     Closed      Open

     7       Closed      Open      Open       Open      Open      Closed

                        VL BUS WAIT STATE SELECTION

               Setting                                J14

                    0                                Open

                     1                               Closed

