
LEADING EDGE PRODUCTS, INC.

MODEL M (MP1676L)

Processor            8088
Processor Speed      7.16MHz
Chip Set             None
Max. Onboard DRAM    256KB
Cache                None
BIOS                 Leading Edge
Dimensions           355mm x 304mm
I/O Options          Serial port, 32-bit external memory card slot, floppy
                     drive interface
NPU Options          8087

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  Serial port                J8        No connection               P6

  DC power                 P1 & P2     32-bit external             P7
                                       memory card

  Keyboard connector         P3        Floppy drive                P8
                                       interface

  Power LED                  P5

                        USER CONFIGURABLE SETTINGS

             Function                  Jumper/Switch         Position

     Factory configured - do not           JP1                Open
      alter

     Serial port select IRQ3               JP2              pins 1 & 2
                                                              closed

      Serial port select IRQ4               JP2              pins 2 & 3
                                                              closed

     Serial port select voltage      JP3, JP4, JP5, &       pins 1 & 2
      interface                             JP6               closed

      Serial port select current      JP3, JP4, JP5, &       pins 2 & 3
      interface                             JP6               closed

     Serial port select COM1               JP10             pins 1 & 2
                                                              closed

      Serial port select COM2               JP10             pins 2 & 3
                                                              closed

     Factory configured - do not          SW1/1                Off
      alter

     Factory configured - do not          SW1/3                Off
      alter

     Factory configured - do not          SW1/4                Off
      alter

     Factory configured - do not          SW2/5                Off
      alter

     Factory configured - do not          SW2/6                Off
      alter

     Factory configured - do not          SW2/7                Off
      alter

     Factory configured - do not          SW2/8                Off
      alter

     Self test select normal              SW3/1                On
      operation

      Self test select                     SW3/1                Off
      continuously repeating

     Monitor type select medium           SW3/2                On
      resolution

      Monitor type select high             SW3/2                Off
      resolution

     Leading Edge PC advanced             SW3/3                On
      features enabled

      Leading Edge PC advanced             SW3/3                Off
      features disabled

     Serial interface mode                SW3/4                On
      XON/OFF disabled

      Serial interface mode                SW3/4                Off
      XON/OFF enabled

     Self test disabled                   SW3/5                On

      Self test enabled                    SW3/5                Off

     NPU speed select 8MHz                SW3/6                On

      NPU speed select 5MHz                SW3/6                On

     NPU disabled                         SW3/7                On

      NPU enabled                          SW3/7                On

     CPU speed select fast                SW3/8                On

      CPU speed select slow                SW3/8                On

                      DRAM CONFIGURATION

             Size                          Bank 0

             256KB                     (9) HM50256P-15

  Note:Memory is factory installed and is not configurable.

                         DRAM SWITCH CONFIGURATION

    Size        SW1/2       SW2/1        SW2/2       SW2/3       SW2/4

   128KB         On           On          Off         On           On

   256KB         On           On          Off         Off          On

   384KB         On           On          Off         On          Off

   512KB         On           On          Off         Off         Off

   640KB         Off          On          Off         On           On

  Note:Memory configurations above 256KB must use the proprietary memory
  expansion card.

         DRAM SWITCH CONFIGURATION

     Size          SW2/5          SW2/6

     None            On            On

  Monochrome        Off            Off

  40 x 25 CGA       Off            On

  80 x 25 CGA        On            Off

