SEALEVEL SYSTEMS, INC.

SIO-II

Card Type               Serial card
Chip Set                Unidentified
Maximum Onboard Memory  Unidentified
I/O Options             Serial port
Hard Drives supported   None
Floppy drives supported None
Data Bus                8-bit ISA
Card Size               Half-length, full-height

[Image]

           CONNECTIONS

    Function          Label

  Serial Port 1        CN1

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

       RS-485 enabled by RTS                     E2           Closed

       RS-485 always enabled                     E2            Open

       RS-232 with U7 & U11 installed            E5          Pins 2 & 3
                                                              closed

  »    RS-422/485 with U6 & U7 installed         E5          Pins 2 & 3
                                                              closed

       Current Loop with U6 & U7 installed       E5          Pins 1 & 2
                                                              closed

  Note: For the RS-422, the RS-485, and the Current loop, the RS-422/485
  driver/receiver pair are installed at U6 and U7. For the RS-232, U6 and
  U7 must be removed and the RS-232 driver/receiver pair are installed at
  locations U17 and U11.

                      BASE I/O ADDRESS SELECTION PORT 1

    Setting     SW1/1   SW1/2   SW1/3   SW1/4   SW1/5   SW1/6   SW1/7   SW1/8

      238h       On      Off     Off     Off    Off     Off     Off     Off

      2B8h       Off     On      Off     Off    Off     Off     Off     Off

      338h       Off     Off     On      Off    Off     Off     Off     Off

      3B8h       Off     Off     Off     On     Off     Off     Off     Off

      278h       Off     Off     Off     Off     On     Off     Off     Off

      2F8h       Off     Off     Off     Off    Off      On     Off     Off

      378h       Off     Off     Off     Off    Off     Off      On     Off

  »   3F8h       Off     Off     Off     Off    Off     Off     Off      On

      Disabled   Off     Off     Off     Off    Off     Off     Off     Off

                     SERIAL PORT 1 INTERRUPT SELECTION

        IRQ           E1/Pins 1 & 2      E1/Pins 2 & 3           E9

          IRQ3            Closed            Closed              Open

  »       IRQ4             Open             Closed              Open

          IRQ5             Open              Open              Closed

          None             Open              Open               Open