
SEALEVEL SYSTEMS, INC.

ULTRA SIO (P/N 3089), ULTRA SIO (P/N3189)

Card Type               Serial card
Chip Set                Unidentified
Maximum Onboard Memory  Unidentified
I/O Options             Serial port (2)
Hard Drives supported   None
Floppy drives supported None
Data Bus                16-bit ISA
Card Size               Full-length, full-height

[Image]

                                CONNECTIONS

          Function             Label           Function             Label

  Serial Port 1                 P3     Serial Port 2                 P4

                        USER CONFIGURABLE SETTINGS

                  Function                     Label        Position

  Port 1 RTS enabled (RS-485)                   E8     Pins 2 & 4 closed

  Port 1 auto enabled (RS-485)                  E8     Pins 1 & 3 closed

  Port 2 RTS enabled (RS-485)                   E10    Pins 2 & 4 closed

  Port 2 auto enabled (RS-485)                  E10    Pins 1 & 3 closed

                     BASE I/O ADDRESS SELECTION PORT 1

       Setting           SW1/1        SW1/2         SW1/3        SW1/4

           2A0h           Off           On           On            On

           2E8h           On           Off           Off           On

           2F8h           On            On           Off           On

           300h           Off           On           Off           On

           328h           Off          Off           On            On

           3E8h           On           Off           On            On

          3F8h           On            On           On            On

         Disabled         Off          Off           Off          Off

                     BASE I/O ADDRESS SELECTION PORT 2

       Setting           SW2/1        SW2/2         SW2/3        SW2/4

           2A0h           Off           On           On            On

           2E8h           On           Off           Off           On

          2F8h           On            On           Off           On

           300h           Off           On           Off           On

           328h           Off          Off           On            On

           3E8h           On           Off           On            On

           3F8h           On            On           On            On

         Disabled         Off          Off           Off          Off

                     SERIAL PORT 1 INTERRUPT SELECTION

     IRQ         E11/A       E11/B       E11/C       E11/D        E11/E

       2/9      Closed       Open         Open        Open        Open

        3        Open       Closed        Open        Open        Open

       4        Open        Open        Closed       Open        Open

        5        Open        Open         Open       Closed       Open

        6        Open        Open         Open        Open       Closed

        7        Open        Open         Open        Open        Open

        10       Open        Open         Open        Open        Open

        11       Open        Open         Open        Open        Open

        12       Open        Open         Open        Open        Open

        14       Open        Open         Open        Open        Open

        15       Open        Open         Open        Open        Open

                 SERIAL PORT 1 INTERRUPT SELECTION (CONT)

    IRQ       E11/F      E11/G     E11/H      E11/I     E11/J      E11/K

      2/9      Open      Open       Open      Open       Open      Open

       3       Open      Open       Open      Open       Open      Open

      4       Open      Open       Open      Open       Open      Open

       5       Open      Open       Open      Open       Open      Open

       6       Open      Open       Open      Open       Open      Open

       7      Closed     Open       Open      Open       Open      Open

       10      Open     Closed      Open      Open       Open      Open

       11      Open      Open      Closed     Open       Open      Open

       12      Open      Open       Open     Closed      Open      Open

       14      Open      Open       Open      Open      Closed     Open

       15      Open      Open       Open      Open       Open     Closed

                     SERIAL PORT 2 INTERRUPT SELECTION

     IRQ         E12/A       E12/B       E12/C       E12/D       E12/E

       2/9      Closed       Open        Open        Open         Open

       3        Open       Closed       Open        Open         Open

        4        Open        Open       Closed       Open         Open

        5        Open        Open        Open       Closed        Open

        6        Open        Open        Open        Open        Closed

        7        Open        Open        Open        Open         Open

        10       Open        Open        Open        Open         Open

        11       Open        Open        Open        Open         Open

        12       Open        Open        Open        Open         Open

        14       Open        Open        Open        Open         Open

        15       Open        Open        Open        Open         Open

                 SERIAL PORT 2 INTERRUPT SELECTION (CONT)

    IRQ       E12/F     E12/G      E12/H     E12/I     E12/J      E12/K

      2/9     Open       Open      Open       Open      Open       Open

      3      Open       Open      Open       Open      Open       Open

       4      Open       Open      Open       Open      Open       Open

       5      Open       Open      Open       Open      Open       Open

       6      Open       Open      Open       Open      Open       Open

       7     Closed      Open      Open       Open      Open       Open

       10     Open      Closed     Open       Open      Open       Open

       11     Open       Open     Closed      Open      Open       Open

       12     Open       Open      Open      Closed     Open       Open

       14     Open       Open      Open       Open     Closed      Open

       15     Open       Open      Open       Open      Open      Closed

                  SERIAL INTERRUPT MODE SELECTION PORT 1

                   IRQ                                   E5

     Normal interrupt mode                      Pins 1 & 2 closed

      Shared interrupt mode without              Pins 2 & 3 closed
      resistor

      Shared interrupt mode with                 Pins 3 & 4 closed
      pull-down resistor

                  SERIAL INTERRUPT MODE SELECTION PORT 2

                   IRQ                                   E6

     Normal interrupt mode                      Pins 1 & 2 closed

      Shared interrupt mode without              Pins 2 & 3 closed
      resistor

      Shared interrupt mode with                 Pins 3 & 4 closed
      pull-down resistor

                             PORT 1 SELECTION

                   Function                    Label        Position

  Port 1 echo enabled (RS-485 2 wire mode)       E3     Pins 1 & 2 closed

  Port 1 echo disabled (RS-485 2 wire mode)      E3     Pins 3 & 4 closed

  Port 1 RS-422/485 always enabled               E3     Pins 5 & 6 closed

  Port 1 RS-422/485 enabled by RTS               E3     Pins 7 & 8 closed

                             PORT 2 SELECTION

                   Function                    Label        Position

  Port 2 echo enabled (RS-485 2 wire mode)       E9     Pins 1 & 2 closed

  Port 2 echo disabled (RS-485 2 wire mode)      E9     Pins 3 & 4 closed

  Port 2 RS-422/485 always enabled               E9     Pins 5 & 6 closed

  Port 2 RS-422/485 enabled by RTS               E9     Pins 7 & 8 closed

                       PORT 1 TERMINATION SELECTION

                   Function                     Label       Position

  Port 1 TX+ & RX+ connected for two wire        E1     Pins 1 & 2 closed
  operation (RS-485)

  Port 1 add 120 ohm termination                 E1     Pins 3 & 4 closed

  Port 1 TX- & RX- connected for two wire        E1     Pins 5 & 6 closed
  operation (RS-485)

  Port 1 1K ohm pull-down resistor enabled       E1     Pins 7 & 8 closed
  (RS-422/485)

  Port 1 1K ohm pull-up resistor enabled         E1        Pins 9 & 10
  (RS-422/485)                                               closed

                       PORT 2 TERMINATION SELECTION

                   Function                     Label       Position

  Port 2 TX+ & RX+ connected for two wire        E4     Pins 1 & 2 closed
  operation (RS-485)

  Port 2 add 120 ohm termination                 E4     Pins 3 & 4 closed

  Port 2 TX- & RX- connected for two wire        E4     Pins 5 & 6 closed
  operation (RS-485)

  Port 2 1K ohm pull-down resistor enabled       E4     Pins 7 & 8 closed
  (RS-422/485)

  Port 2 1K ohm pull-up resistor enabled         E4        Pins 9 & 10
  (RS-422/485)                                               closed

                       MISCELLANEOUS TECHNICAL NOTES

            The Ultra SIO comes in both isolated ground (P/N 3189) and
            non-isolated ground (P/N 3089) types. The settings are the
            same for both.

