
NATURAL MICROSYSTEMS

VBX 200, VBX 400

Card Type         Telephony
Chip Set          TI 320C10
Data Bus          16-bit ISA
I/O Options       Analog in/out, digital in/out, voice in/out

[Image]

                                CONNECTIONS

        Function           Label             Function             Label

  Lines 1 & 2 out            J1      Audio in/out                   J4

  Lines 3 & 4 out            J2      Analog/digital I/O (see        J5
                                     pinout below)

  Power and signalling       J3
  (see pinout below)

  Note: Lines 2 & 3 are not present on model VBX 200.

                         J3 PINOUT

       Function          Pin          Function         Pin

  Channel 1 E signal      1     Channel 3 SB signal     9

  Channel 1 M signal      2     Channel 4 E signal      10

  Channel 1 SB signal     3     Channel 4 M signal      11

  Channel 2 E signal      4     Channel 4 SB signal     12

  Channel 2 M signal      5     Battery ground          13

  Channel 2 SB signal     6     -48VDC battery          14

  Channel 3 E signal      7     -12V out                15

  Channel 3 M signal      8

                              J5 PINOUT

         Function            Pin           Function            Pin

  Analog channel 1 in/out     1     Analog channel 3 in/out    11

  Analog channel 2 in/out     2     Analog channel 4 in/out    12

  Digital channel 1 in        3     Digital channel 3 in       13

  Digital channel 2 in        4     Digital channel 4 in       14

  Digital channel 1 out       5     Digital channel 3 out      15

  Digital channel 2 out       6     Digital channel 4 out      16

  Not used                    7     Not used                   17

  Not used                    8     Not used                   18

  +12VDC power                9     Digital signal ground      19

  -12VDC power               10     Analog signal ground       20

                        USER CONFIGURABLE SETTINGS

                  Setting                     Label         Position

     Interrupt driver enabled                  W1           Closed

      Interrupt driver disabled                 W1            Open

     Direct audio path for port 1             A11            Open
      enabled

      Off-hook bypass for port 1 enabled       A11           Closed

     Direct audio path for port 2             A21            Open
      enabled

      Off-hook bypass for port 2 enabled       A21           Closed

     Direct audio path for port 3             A31            Open
      enabled

      Off-hook bypass for port 3 enabled       A31           Closed

     Direct audio path for port 4             A41            Open
      enabled

      Off-hook bypass for port 4 enabled       A41           Closed

     Hook relay for port 1 enabled            A12           Closed

      Hook relay for port 1 disabled           A12            Open

     Hook relay for port 2 enabled            A22           Closed

      Hook relay for port 2 disabled           A22            Open

     Hook relay for port 3 enabled            A32           Closed

      Hook relay for port 3 disabled           A32            Open

     Hook relay for port 4 enabled            A42           Closed

      Hook relay for port 4 disabled           A42            Open

     Ring detect for port 1 enabled           A13           Closed

      Ring detect for port 1 disabled          A13            Open

     Ring detect for port 2 enabled           A23           Closed

      Ring detect for port 2 disabled          A23            Open

     Ring detect for port 3 enabled           A33           Closed

      Ring detect for port 3 disabled          A33            Open

     Ring detect for port 4 enabled           A43           Closed

      Ring detect for port 4 disabled          A43            Open

      Unidentified                             CF1        Unidentified

      Unidentified                             CF2        Unidentified

      Unidentified                             CF3        Unidentified

            Note: If multiple boards are installed in a system, only one
            board should have W1 closed.

                                          LINE TYPE

   Setting     A11      A12      A13      A21      A22      A23      A31      A32     A33

      Loop    Open    Closed   Closed    Open    Closed   Closed   Open     Closed  Closed
      Start

      Ground   Open    Closed   Closed    Open    Closed   Closed   Open     Closed  Closed
      Start

       DID    Closed    Open     Open    Closed   Open     Open     Closed   Open     Open

      E & M   Closed    Open     Open    Closed   Open     Open     Closed   Open     Open
       Type
       1A

      E & M   Closed    Open     Open    Closed   Open     Open     Closed   Open     Open
       Type
       1B

      E & M   Closed    Open     Open    Closed   Open     Open     Closed   Open     Open
       Type
       2A

      E & M   Closed    Open     Open    Closed   Open     Open     Closed   Open     Open
       Type
       2B

      E & M   Closed    Open     Open    Closed   Open     Open     Closed   Open     Open
       Type
       4A

      E & M   Closed    Open     Open    Closed   Open     Open     Closed   Open     Open
       Type
       4B

      E & M   Closed    Open     Open    Closed   Open     Open     Closed   Open     Open
       Type
       5A

      E & M   Closed    Open     Open    Closed   Open     Open     Closed   Open     Open
       Type
       5B

                                      LINE TYPE (CONT)

   Setting     A41      A42      A43      B11      B12      B13      B21      B22     B23

      Loop    Open    Closed   Closed    Open    Open     Open     Open     Open     Open
      Start

      Ground   Open    Closed   Closed   Closed   Open     Closed   Closed   Open    Closed
      Start

       DID    Closed    Open     Open     Open    Open     Open     Open     Open     Open

      E & M   Closed    Open     Open     Open    Closed   Open     Open     Closed   Open
       Type
       1A

      E & M   Closed    Open     Open     Open    Open     Open     Open     Open     Open
       Type
       1B

      E & M   Closed    Open     Open     Open    Closed   Open     Open     Closed   Open
       Type
       2A

      E & M   Closed    Open     Open     Open    Open     Open     Open     Open     Open
       Type
       2B

      E & M   Closed    Open     Open     Open    Closed   Open     Open     Closed   Open
       Type
       4A

      E & M   Closed    Open     Open     Open    Open     Open     Open     Open     Open
       Type
       4B

      E & M   Closed    Open     Open     Open    Closed   Open     Open     Closed   Open
       Type
       5A

      E & M   Closed    Open     Open     Open    Open     Open     Open     Open     Open
       Type
       5B

                                        LINE TYPE (CONT)

   Setting     B31      B32      B33      B41      B42      B43      W9       W13     Battery

      Loop    Open     Open     Open     Open    Open     Open     Closed   Closed      Not
      Start                                                                          installed

      Ground  Closed    Open    Closed   Closed   Open     Closed   Closed   Closed      Not
      Start                                                                          installed

       DID     Open     Open     Open     Open    Open     Open     Open     Open    Installed

      E & M    Open    Closed    Open     Open    Closed   Open     Closed   Closed      Not
       Type                                                                          installed
       1A

      E & M    Open     Open     Open     Open    Open     Open     Closed   Closed      Not
       Type                                                                          installed
       1B

      E & M    Open    Closed    Open     Open    Closed   Open     Closed   Closed      Not
       Type                                                                          installed
       2A

      E & M    Open     Open     Open     Open    Open     Open     Closed   Closed      Not
       Type                                                                          installed
       2B

      E & M    Open    Closed    Open     Open    Closed   Open     Closed   Closed      Not
       Type                                                                          installed
       4A

      E & M    Open     Open     Open     Open    Open     Open     Closed   Closed      Not
       Type                                                                          installed
       4B

      E & M    Open    Closed    Open     Open    Closed   Open     Closed   Closed      Not
       Type                                                                          installed
       5A

      E & M    Open     Open     Open     Open    Open     Open     Closed   Closed      Not
       Type                                                                          installed
       5B

                             BASE I/O ADDRESS

       Setting             SW1/1             SW1/2             SW1/3

           100h             Off               Off               On

           180h             Off                On               Off

           1A0h              On               Off               Off

           1C0h              On                On               Off

           280h             Off                On               On

           2A0h              On               Off               On

           2C0h              On                On               On

          340h             Off               Off               Off

                                 INTERRUPT

  Setting       W2         W3        W4        W5        W6         W7

      IRQ3     Open      Closed     Open      Open      Open       Open

      IRQ4     Open       Open     Closed     Open      Open       Open

     IRQ5     Open       Open      Open     Closed     Open       Open

      IRQ6     Open       Open      Open      Open     Closed      Open

      IRQ7     Open       Open      Open      Open      Open      Closed

      IRQ9    Closed      Open      Open      Open      Open       Open

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

