SEALEVEL SYSTEMS, INC.

DUAL SIO

Card Type               Serial card
Chip Set                Unidentified
Maximum Onboard Memory  Unidentified
I/O Options             Serial ports (2 RS-422 or RS-485)
Hard Drives supported   None
Floppy drives supported None
Data Bus                8-bit ISA
Card Size               Half-length, full-height

[Image]

                                CONNECTIONS

          Function             Label           Function             Label

  Serial Port 1                 J1     Serial Port 2                 J2

                        USER CONFIGURABLE SETTINGS

                    Function                      Label      Position

  Port 1 enabled                                  SW1/8         On

  Port 1 disabled                                 SW1/8         Off

  Port 2 enabled                                  SW2/8         On

  Port 2 disabled                                 SW2/8         Off

  Port 1 enabled by RTS                            E3         Closed

  Port 1 always enabled                            E3          Open

  Port 2 enabled by RTS                            E4         Closed

  Port 2 always enabled                            E4          Open

                     BASE I/O ADDRESS SELECTION PORT 1

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

      280h     Off      On      Off       On       On      On        On

      2AOh     Off      On      Off       On      Off      On        On

      2E8h     Off      On      Off      Off      Off      On       Off

      2F8h     Off      On      Off      Off      Off      Off      Off

      3E8h     Off     Off      Off      Off      Off      On       Off

      300h     Off     Off       On       On       On      On        On

      328h     Off     Off       On       On      Off      On       Off

  »   3F8h     Off     Off      Off      Off      Off      Off      Off

                     BASE I/O ADDRESS SELECTION PORT 2

  Setting     SW2/1   SW2/2    SW2/3    SW2/4    SW2/5    SW2/6    SW2/7

      280h     Off      On      Off       On       On      On        On

      2A0h     Off      On      Off       On      Off      On        On

      2E8h     Off      On      Off      Off      Off      On       Off

  »   2F8h     Off      On      Off      Off      Off      Off      Off

      3E8h     Off     Off      Off      Off      Off      On       Off

      300h     Off     Off       On       On       On      On        On

      328h     Off     Off       On       On      Off      On       Off

      3F8h     Off     Off      Off      Off      Off      Off      Off

                     SERIAL PORT 1 INTERRUPT SELECTION

        IRQ              E1/A         E1/B          E1/C         E1/D

        IR/FONT>        Closed        Open          Open         Open

          IRQ3           Open        Closed         Open         Open

  »       IRQ4           Open         Open         Closed        Open

          IRQ5           Open         Open          Open        Closed

                     SERIAL PORT 2 INTERRUPT SELECTION

        IRQ              E1/A         E1/B          E1/C         E1/D

        IR/FONT>        Closed        Open          Open         Open

  »       IRQ3           Open        Closed         Open         Open

          IRQ4           Open         Open         Closed        Open

          IRQ5           Open         Open          Open        Closed