NATURAL MICROSYSTEMS CORPORATION

VBX 1200

Card Type   Telephony
Chip Set    TI 320C10
I/O options MVIP bus
Data Bus    16-bit ISA

[Image]

Note: S1 is located on the back of the daughterboard.

                                CONNECTIONS

       Function           Label              Function             Label

  MVIP bus                 JP1      Daughterboard headers        JP3, JP4

            Note: Exact location of headers is unidentified.

                        USER CONFIGURABLE SETTINGS

                    Setting                        Label       Position

  »   Interrupt resistor enabled                   JP5/A        Closed

      Interrupt resistor disabled                  JP5/A         Open

  »   Factory configured - do not alter            S1/5          Off

  »   Factory configured - do not alter            S2/5          Off

            Note: If multiple boards are installed in a system, only one
            board should have JP5/A closed.

                       BASE I/O ADDRESS (MAIN BOARD)

      Setting          S2/1          S2/2          S2/3          S2/4

  »      100h           On            On            On            On

         140h           Off           On            On            On

         180h           On            Off           On            On

         280h           Off           Off           On            On

         500h           On            On            Off           On

         540h           Off           On            Off           On

         580h           On            Off           Off           On

         680h           Off           Off           Off           On

         900h           On            On            On            Off

         940h           Off           On            On            Off

         980h           On            Off           On            Off

         A80h           Off           Off           On            Off

         D00h           On            On            Off           Off

         D40h           Off           On            Off           Off

         D80h           On            Off           Off           Off

         E80h           Off           Off           Off           Off

                     BASE I/O ADDRESS (DAUGHTERBOARD)

      Setting          S1/1          S1/2          S1/3          S1/4

         100h           On            On            On            On

         140h           Off           On            On            On

  »      180h           On            Off           On            On

         280h           Off           Off           On            On

         500h           On            On            Off           On

         540h           Off           On            Off           On

         580h           On            Off           Off           On

         680h           Off           Off           Off           On

         900h           On            On            On            Off

         940h           Off           On            On            Off

         980h           On            Off           On            Off

         A80h           Off           Off           On            Off

         D00h           On            On            Off           Off

         D40h           Off           On            Off           Off

         D80h           On            Off           Off           Off

         E80h           Off           Off           Off           Off

                      MVIP VOICE TRANSMISSION STREAM

      Setting          JP6/A         JP6/B        JP6/C          JP6/D

       Channel 0       Closed        Open          Open          Open

       Channel 2        Open        Closed         Open          Open

       Channel 4        Open         Open         Closed         Open

  »    Channel 6        Open         Open          Open         Closed

                       MVIP DATA TRANSMISSION STREAM

      Setting          JP6/E         JP6/F        JP6/G          JP6/H

       Channel 1       Closed        Open          Open          Open

       Channel 3        Open        Closed         Open          Open

       Channel 5        Open         Open         Closed         Open

  »    Channel 7        Open         Open          Open         Closed

                         MVIP VOICE RECEIVE STREAM

      Setting          JP9/A         JP9/B        JP9/C          JP9/D

       Channel 0       Closed        Open          Open          Open

       Channel 2        Open        Closed         Open          Open

       Channel 4        Open         Open         Closed         Open

  »    Channel 6        Open         Open          Open         Closed

                         MVIP DATA RECEIVE STREAM

      Setting          JP9/E         JP9/F        JP9/G          JP9/H

       Channel 1       Closed        Open          Open          Open

       Channel 3        Open        Closed         Open          Open

       Channel 5        Open         Open         Closed         Open

  »    Channel 7        Open         Open          Open         Closed

                         MVIP STREAMS (MAIN BOARD)

         Setting               S2/6            S2/7             S2/8

  »          0-5                Off             Off             Off

             6-11               On              Off             Off

            12-17               Off             On              Off

            18-23               On              On              Off

            24-29               Off             Off              On

           Disabled             On              On               On

                       MVIP STREAMS (DAUGHTERBOARD)

         Setting               S1/6            S1/7             S1/8

             0-5                Off             Off             Off

             6-11               On              Off             Off

            12-17               Off             On              Off

            18-23               On              On              Off

  »         24-29               Off             Off              On

           Disabled             On              On               On

                                    INTERRUPT

  Setting    JP5/B   JP5/C    JP5/D    JP5/E    JP5/F    JP5/G    JP5/H    JP5/I

  IR/FONT>   0pen     0pen     0pen     0pen    Closed   0pen     0pen     0pen

   IRQ3      Closed   0pen     0pen     0pen     0pen    0pen     0pen     0pen

   IRQ4      0pen    Closed    0pen     0pen     0pen    0pen     0pen     0pen

   IRQ5      0pen     0pen    Closed    0pen     0pen    0pen     0pen     0pen

   IRQ7      0pen     0pen     0pen    Closed    0pen    0pen     0pen     0pen

   IRQ11     0pen     0pen     0pen     0pen     0pen    Closed   0pen     0pen

   IRQ12     0pen     0pen     0pen     0pen     0pen    0pen     Closed   0pen

   IRQ15     0pen     0pen     0pen     0pen     0pen    0pen     0pen     Closed

            Note: If multiple boards are installed in a system, assign them all
            the same IRQ.