
WYSE TECHNOLOGY, INC.

WY-994

Data bus: 16-bit, PC/AT

Size: Half-length, full-height card

Hard drives supported: Two IDE Interface (AT) drives

Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB

[Image]

                                CONNECTIONS

                     Function                             Location

  25-pins parallel port (LPT1/2) external                    CN1

  9-pin serial port 1 (COM1/3)-external                      CN2

  9-pin serial port 2 (COM2/4) internal                      CN3

  34-pin data cable connector-floppy drive                   J1

  40-pin IDE Interface (AT) control cable                    J5
  connector-hard drive

  4-pin connector-drive active LED                           J6

                        USER CONFIGURABLE SETTINGS

               Function                    Location           Setting

     Factory configured - do not             W1               open
      alter

     Factory configured - do not             W2               open
      alter

     Hard drive enabled                      W3             pins 1 & 2
                                                               open

      Hard drive disabled                     W3             pins 1 & 2
                                                              closed

     Factory configured - do not             W3             pins 3 & 4
      alter                                                    open

     Floppy drive interrupt request          W4             pins 1 & 2
      is IRQ6                                                  open

      Floppy drive interrupt request          W4             pins 1 & 2
      is disabled                                             closed

     Floppy drive port address is            W4             pins 3 & 4
      3F0-3F7h                                                closed

      Floppy drive port address is            W4             pins 3 & 4
      370-3F7h                                                 open

                        PARALLEL PORT CONFIGURATION

           LPT             W5/1 & 2    W5/3 & 4    W6/3 & 4     W6/1 & 2

     LPT1 (378-37Fh)        open       closed      closed        open
      on IRQ7

      LPT2 (278-27Fh)        open        open        open        closed
      on IRQ5

      Disabled              closed       N/A          N/A         N/A

                      SERIAL PORT CONFIGURATION - W5

  Port 1 (CN2)  Port 2 (CN3)   pins 5 &   pins 7 &   pins 9 &    pins 11
                                  6          8          10         &12

      COM1          COM2         open      closed      open      closed
   3F8-3FFh       2F8-2FFh

      COM1          COM4         open       open      closed      open
   3F8-3FFh       2E8-2EFh

      COM3          COM2        closed      open       open      closed
   3E8-3EFh       2F8-2FFh

      COM3          COM4        closed      open      closed      open
   3E8-3EFh       2E8-2EFh

   Disabled       Disabled      closed     closed     closed     closed

                     COM PORTS INTERRUPT REQUEST - W6

         IRQ           pins 5 & 6    pins 7 & 8   pins 5 & 7   pins 6 & 8

     COM1 or COM3        open        closed        open          open
      IRQ4

      COM1 or COM3        open         open         open         closed
      IRQ3

     COM2 or COM4       closed        open         open          open
      IRQ3

      COM2 or COM4        open         open        closed         open
      IRQ4

      Disabled           closed       closed       closed        closed

