
SEALEVEL SYSTEMS, INC.

VERSA COMM+4/EX

Card Type               Serial card
Chip Set                Unidentified
Maximum Onboard Memory  Unidentified
I/O Options             Serial ports (4 RS-232 via DB 37 connector)
Hard Drives supported   None
Floppy drives supported None
Data Bus                16-bit ISA
Card Size               Full-length, full-height

[Image]

         CONNECTIONS

   Function        Label

  Serial Port        P3

                          PORT ADDRESS SELECTION

  Port 1     Port 2    Port 3     Port 4     SW1/6     SW1/7      SW1/8

   3F8h       2F8h      3E8h       2E8h       On         On        Off

   2F8h       3E8h      2E8h       2E0h       On        Off         On

   3E8h       2E8h      280h       288h       On        Off        Off

   500h       508h      510h       518h       Off        On         On

   580h       588h      590h       598h       Off        On        Off

   1500h     1508h      1510h     1518h       Off       Off         On

   3220h     3228h      4220h     4228h       Off       Off        Off

  Note: Use either the port address selection or the base I/O address
  selection. When using the port address selection, switches 1-5 must be
  off.

                        BASE I/O ADDRESS SELECTION

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

        1A0h        On         Off         Off          On         Off

       280h        Off         On         Off          On         On

        2A0h        Off         On         Off          On         Off

        2E0h        Off         On         Off         Off         Off

        380h        Off        Off         Off          On         On

  Note: When using the base I/O address selection, switches 6-8 must be
  on.

                                SERIAL PORT 1 INTERRUPT SELECTION

   IRQ    J1B/A    J1B/B    J1B/C    J1B/D    J1B/E    J1B/F    J1B/G    J1B/H   J1B/I    J1B/J

      3   Closed    Open     Open     Open    Open     Open     Open     Open     Open     Open

      4    Open    Closed    Open     Open    Open     Open     Open     Open     Open     Open

     5    Open     Open    Closed    Open    Open     Open     Open     Open     Open     Open

      6    Open     Open     Open    Closed   Open     Open     Open     Open     Open     Open

      7    Open     Open     Open     Open    Closed   Open     Open     Open     Open     Open

      9    Open     Open     Open     Open    Open     Closed   Open     Open     Open     Open

      10   Open     Open     Open     Open    Open     Open     Closed   Open     Open     Open

      11   Open     Open     Open     Open    Open     Open     Open     Closed   Open     Open

      12   Open     Open     Open     Open    Open     Open     Open     Open    Closed    Open

      15   Open     Open     Open     Open    Open     Open     Open     Open     Open    Closed

                                SERIAL PORT 2 INTERRUPT SELECTION

   IRQ    J2B/A    J2B/B    J2B/C    J2B/D    J2B/E    J2B/F    J2B/G    J2B/H   J2B/I    J2B/J

      3   Closed    Open     Open     Open    Open     Open     Open     Open     Open     Open

      4    Open    Closed    Open     Open    Open     Open     Open     Open     Open     Open

     5    Open     Open    Closed    Open    Open     Open     Open     Open     Open     Open

      6    Open     Open     Open    Closed   Open     Open     Open     Open     Open     Open

      7    Open     Open     Open     Open    Closed   Open     Open     Open     Open     Open

      9    Open     Open     Open     Open    Open     Closed   Open     Open     Open     Open

      10   Open     Open     Open     Open    Open     Open     Closed   Open     Open     Open

      11   Open     Open     Open     Open    Open     Open     Open     Closed   Open     Open

      12   Open     Open     Open     Open    Open     Open     Open     Open    Closed    Open

      15   Open     Open     Open     Open    Open     Open     Open     Open     Open    Closed

                                SERIAL PORT 3 INTERRUPT SELECTION

   IRQ    J3B/A    J3B/B    J3B/C    J3B/D    J3B/E    J3B/F    J3B/G    J3B/H   J3B/I    J3B/J

      3   Closed    Open     Open     Open    Open     Open     Open     Open     Open     Open

      4    Open    Closed    Open     Open    Open     Open     Open     Open     Open     Open

     5    Open     Open    Closed    Open    Open     Open     Open     Open     Open     Open

      6    Open     Open     Open    Closed   Open     Open     Open     Open     Open     Open

      7    Open     Open     Open     Open    Closed   Open     Open     Open     Open     Open

      9    Open     Open     Open     Open    Open     Closed   Open     Open     Open     Open

      10   Open     Open     Open     Open    Open     Open     Closed   Open     Open     Open

      11   Open     Open     Open     Open    Open     Open     Open     Closed   Open     Open

      12   Open     Open     Open     Open    Open     Open     Open     Open    Closed    Open

      15   Open     Open     Open     Open    Open     Open     Open     Open     Open    Closed

                                SERIAL PORT 4 INTERRUPT SELECTION

   IRQ    J4B/A    J4B/B    J4B/C    J4B/D    J4B/E    J4B/F    J4B/G    J4B/H   J4B/I    J4B/J

      3   Closed    Open     Open     Open    Open     Open     Open     Open     Open     Open

      4    Open    Closed    Open     Open    Open     Open     Open     Open     Open     Open

     5    Open     Open    Closed    Open    Open     Open     Open     Open     Open     Open

      6    Open     Open     Open    Closed   Open     Open     Open     Open     Open     Open

      7    Open     Open     Open     Open    Closed   Open     Open     Open     Open     Open

      9    Open     Open     Open     Open    Open     Closed   Open     Open     Open     Open

      10   Open     Open     Open     Open    Open     Open     Closed   Open     Open     Open

      11   Open     Open     Open     Open    Open     Open     Open     Closed   Open     Open

      12   Open     Open     Open     Open    Open     Open     Open     Open    Closed    Open

      15   Open     Open     Open     Open    Open     Open     Open     Open     Open    Closed

                  SERIAL INTERRUPT MODE SELECTION PORT 1

                  IRQ                                  J1A

      Normal interrupt mode                     Pins 1 & 2 closed

      Shared interrupt mode                     Pins 2 & 3 closed

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

                  SERIAL INTERRUPT MODE SELECTION PORT 2

                  IRQ                                  J2A

      Normal interrupt mode                     Pins 1 & 2 closed

     Shared interrupt mode                     Pins 2 & 3 closed

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

                  SERIAL INTERRUPT MODE SELECTION PORT 3

                  IRQ                                  J3A

      Normal interrupt mode                     Pins 1 & 2 closed

     Shared interrupt mode                     Pins 2 & 3 closed

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

                  SERIAL INTERRUPT MODE SELECTION PORT 4

                  IRQ                                  J4A

      Normal interrupt mode                     Pins 1 & 2 closed

     Shared interrupt mode                     Pins 2 & 3 closed

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

          CLOCK MODE SELECTION

       Divide                J5

         1            Pins 1 & 2 closed

         2            Pins 3 & 4 closed

         4            Pins 5 & 6 closed

