
GTEK, INC.

BBS550

Card Type               Serial card
Chip Set                Unidentified
Maximum Onboard Memory  Unidentified
I/O Options             Serial ports (8 RJ-45),
Hard Drives supported   None
Floppy drives supported None
Data Bus                16-bit ISA
Card Size               Half-length

[Image]

                                CONNECTIONS

         Function           Label             Function            Label

  Serial port 0              CH0      Serial port 5                CH5

  Serial port 1              CH1      Serial port 6                CH6

  Serial port 2              CH2      Serial port 7                CH7

  Serial port 3              CH3      Header connector to          CH4
                                      cascade boards

  Serial port 4              CH4

                            SERIAL PORT ADDRESS SELECTION

  Port   Port  Port   Port   Port    Port   Port    Port     JP0      JP1     JP2
   0      1     2      3      4       5      6       7

  100h   108h  110h   118h   120h   128h    130h    128h    Closed   Closed  Closed

  180h   148h  150h   158h   160h   168h    170h    168h    Open     Closed  Closed

  200h   2C8h  2DOh   2D8h   2E0h   2E8h    2F0h    2F8h    Closed   Closed   Open

  210h   2C8h  2D0h   2D8h   2E8h   2E8h    3F8h    2F8h    Closed   Open     Open

  2C0h   600h  A00h   E00h   1200   1600h   1A00h   1E00h   Closed   Open    Closed

  2C0h   610h  A10h   E10h   1200   1600h   1A00h   1E00h   Open     Open    Closed

                        SHARED INTERRUPT SELECTION

       IRQ           JP3         JP4        JP5        JP6         JP7

      IRQ2           Open       Open       Open       Closed     Closed

      IRQ3          Closed      Open           Open    Open       Open

      IRQ4           Open      Closed          Open    Open       Open

      IRQ5           Open       Open           Closed  Open       Open

      IRQ7           Open       Open           Open   Closed      Open

    Disabled         Open       Open           Open    Open       Open

                           DISCRETE INTERRUPT SELECTION

  Port

   0     1   2    3    4    5    6   7    JP3      JP4     JP5      JP6      JP7

   4     3   4    3    4    3    4   3   Closed   Closed   Open     Open     Open

   7     7   7    7    4    3    4   3   Closed   Closed   Open     Open    Closed

   5     2   10   11   12   15   4   3   Closed   Closed  Closed   Closed   Closed

   5     7   10   11   12   15   4   3   Closed   Closed  Closed   Closed    Open

  10     11  12   15   4    3    4   3   Closed   Closed  Closed    Open     Open

  Note: Discrete interrupt selection allows each port to be treated as a distinct
  component. Therefore, ports may be assigned separate or shared IRQs.

                       MISCELLANEOUS TECHNICAL NOTES

  When cascading boards; use IRQ3, 4, or 5, as a shared interrupt on the
  primary board. Set the consecutive boards using JP5, and JP6 only.
  Connect a wire from CN7(location unidentified) on the first board to
  CN4 on the consecutive boards.

