SEALEVEL SYSTEMS, INC.

ACB-V

Card Type   Serial controller
Chip Set    Unidentified
I/O Options Serial ports (2)
Data Bus    8-bit ISA
Card Size   Half-length, full-height

[Image]

                                CONNECTIONS

        Function           Location          Function           Location

  Serial port 1 (Channel      P1      Serial port 2 (Channel       P2
  A)                                  B)

               INTERRUPT SELECTION

   IRQ       E3/2     E3/3      E3/4      E3/5

   IRQ2     Closed    Open      Open      Open

   IRQ3      Open    Closed     Open      Open

   IRQ4      Open     Open     Closed     Open

  » IRQ5     Open     Open      Open     Closed

                    IRQ MODE SELECTION

              Setting                 Label     Position

  Normal mode enabled                 E3/N       Closed

  Normal mode disabled                E3/N        Open

  » Multi mode enabled                E3/M       Closed

  Multi mode disabled                 E3/M        Open

                           DMA CHANNEL SELECTION

      Channel A            Channel B             E1              E2

       Disabled             Disabled            Open            Open

   Ch.1 half-duplex         Disabled          Jumper 4      Jumpers 4 & 6
                                               closed          closed

   Ch.3 half-duplex         Disabled          Jumper 2      Jumpers 4 & 5
                                               closed          closed

       Disabled         Ch.1 half-duplex    Jumpers 3 & 5      Jumper 6
                                               closed          closed

       Disabled         Ch.3 half-duplex    Jumpers 1 & 5      Jumper 5
                                               closed          closed

   Ch.1 half-duplex     Ch.3 half-duplex    Jumpers 1, 4,   Jumpers 1 & 3
                                             & 5 closed        closed

   Ch.3 half-duplex     Ch.1 half-duplex    Jumpers 2, 3,   Jumpers 1 & 2
                                             & 5 closed        closed

  Full-duplex - Ch.1        Disabled        Jumpers 1, 4,   Jumpers 1 & 4
    receive & Ch.3                           & 6 closed        closed
       transmit

  Full-duplex - Ch.3        Disabled        Jumpers 2, 3,   Jumpers 1 & 4
    receive & Ch.1                           & 6 closed        closed
       transmit

                        BASE I/O ADDRESS SELECTION

  Setting    SW1/1    SW1/2    SW1/3    SW1/4    SW1/5    SW1/6    SW1/7

   238h       Off      On       On       On       Off      Off      Off

   280h       Off      On       Off      On       On       On       On

   2A0h       Off      On       Off      On       Off      On       On

   2E8h       Off      On       Off      Off      Off      On       Off

   300h       Off      Off      On       On       On       On       On

   5500h      Off      Off      Off      On       Off      Off      Off

   6500h      Off      Off      On       Off      Off      Off      Off

   7100h      Off      On       Off      Off      Off      Off      Off

   7300h      On       Off      Off      Off      Off      Off      Off

   7500h      Off      Off      Off      Off      Off      Off      Off

            Note:

  A total of 255 base address settings are available. The switches are a
  binary representation of the decimal memory addresses. SW1/7 is the
  Most Significant Bit and switch SW1/1 is the Least Significant Bit. The
  switches have the following decimal values: SW1/7=16384, SW1/6=8192,
  SW1/5=4096, SW1/4=2048, SW1/3=1024, SW1/2=512, SW1/1=256. Turn off the
  switches and add the values of the switches to obtain the correct
  memory address. (Off=1, On=0)

             EPROM ADDRESS CONFIGURATION

  Address    SW2/1      SW2/2      SW2/3      SW2/4

   C000h       On         On        On         On

   C400h       On         On        On         Off

   C800h       On         On        Off        On

   D000h       On        Off        On         On

   D400h       On        Off        On         Off

   D800h       On        Off        Off        On

   E000h      Off         On        On         On

   E400h      Off         On        On         Off