UNIDENTIFIED

RS232C

Card Type               Multi 1/0 card
Chip Set                Unidentified
Maximum Onboard Memory  Unidentified
I/O Options             Serial ports (2)
Hard Drives supported   None
Floppy drives supported None
Data Bus                8-bit ISA
Card Size               Half-height card

[Image]

                                CONNECTIONS

          Function             Label           Function             Label

  Serial port 1                CN1     Serial port 2                 J2

          SERIAL PORT 1 ADDRESS SELECTION

     Setting           SW1/1            SW1/3

  Port disabled         Off              Off

  3E8-2EF               Off              On

  3F8-3FF               On               Off

          SERIAL PORT 2 ADDRESS SELECTION

     Setting           SW1/2            SW1/4

  Port disabled         Off              Off

  2E8-2EF               Off              On

  2F8-2FF               On               Off

                SERIAL PORT 1 INTERRUPT SELECTION

         IRQ                  SW1/5                 SW1/6

  Interrupt disabled           Off                   Off

  IRQ3                         Off                    On

  IRQ4                          On                   Off

                SERIAL PORT 2 INTERRUPT SELECTION

         IRQ                  SW1/7                 SW1/8

  Interrupt disabled           Off                   Off

  IRQ3                         Off                    On

  IRQ4                          On                   Off

                       MISCELLANEOUS TECHNICAL NOTES

  A second serial port may be added by inserting an UM8250 into U2, a
  MC1489 into U3, a MC1488 into U4, and connecting an external adapter to
  J2