SEALEVEL SYSTEMS, INC.

DUOCOM

Card Type               Serial card
Chip Set                Unidentified
Maximum Onboard Memory  Unidentified
I/O Options             Serial ports (2 RS-232)
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

                        BASE I/O ADDRESS SELECTION

      Port 1         Port 2       SW1/1      SW1/2     SW1/3      SW1/4

  »   3F8h          2F8h            On        On         On        Off

      3E8h          2E8h            On        On        Off         On

      2F8h          2E8h            On        On        Off        Off

      2F8h          3E8h            On        Off        On         On

      3220h         3228h           On        Off        On        Off

      4220h         4228h           On        Off       Off         On

      5220h         5228h           On        Off       Off        Off

      5220h         4220h          Off        On         On         On

      280h          290h           Off        On         On        Off

      300h          308h           Off        On        Off         On

      310h          318h           Off        On        Off        Off

      280h          288h           Off        Off        On         On

      290h          298h           Off        Off        On        Off

      300h          280h           Off        Off       Off         On

      Disabled      Disabled       Off        Off       Off        Off

                               SERIAL PORT 1 INTERRUPT SELECTION

      IRQ        E1/A     E1/B     E1/C     E1/D    E1/E     E1/F     E1/G     E1/H     E1/I

      IR/FONT>  Closed    Open     Open     Open    Open     Open     Open     Open     Open

      IRQ3       Open    Closed    Open     Open    Open     Open     Open     Open     Open

  »   IRQ4       Open     Open    Closed    Open    Open     Open     Open     Open     Open

      IRQ5       Open     Open     Open    Closed   Open     Open     Open     Open     Open

      IRQ7       Open     Open     Open     Open    Closed   Open     Open     Open     Open

      IRQ10      Open     Open     Open     Open    Open     Closed   Open     Open     Open

      IRQ11      Open     Open     Open     Open    Open     Open     Closed   Open     Open

      IRQ12      Open     Open     Open     Open    Open     Open     Open     Closed   Open

      IRQ15      Open     Open     Open     Open    Open     Open     Open     Open    Closed

                               SERIAL PORT 2 INTERRUPT SELECTION

      IRQ        E2/A     E2/B     E2/C     E2/D    E2/E     E2/F     E2/G     E2/H     E2/I

      IR/FONT>  Closed    Open     Open     Open    Open     Open     Open     Open     Open

  »   IRQ3       Open    Closed    Open     Open    Open     Open     Open     Open     Open

      IRQ4       Open     Open    Closed    Open    Open     Open     Open     Open     Open

      IRQ5       Open     Open     Open    Closed   Open     Open     Open     Open     Open

      IRQ7       Open     Open     Open     Open    Closed   Open     Open     Open     Open

      IRQ10      Open     Open     Open     Open    Open     Closed   Open     Open     Open

      IRQ11      Open     Open     Open     Open    Open     Open     Closed   Open     Open

      IRQ12      Open     Open     Open     Open    Open     Open     Open     Closed   Open

      IRQ15      Open     Open     Open     Open    Open     Open     Open     Open    Closed

                      SERIAL INTERRUPT MODE SELECTION

                       IRQ                                  E3

  »   Normal                                         Pins 1 & 3, 2 & 4
                                                          closed

      Shared Interrupt mode                          Pins 3 & 5, 6 & 8
                                                          closed

      Shared Interrupt mode when using more          Pins 3 & 5, 4 & 6
      than one DUOCOM                                     closed

      None                                                 Open