
VEN-TEL, INC.

PCM96FAX

Modem Type                   Data (synchronous/asynchronous)
Maximum Data Rate            9600bps
Maximum Fax Rate             9600bps
Data Bus                     8-bit ISA
Fax Class                    Class I & II
Data Modulation Protocol     Bell 103A/212A

                             ITU-T V.21, V.22, V.22bis, V.32
Fax Modulation Protocol      V.27ter, V.29
Error Correction/Compression MNP5, V.42, V.42bis

[Image]

                        BASE I/O ADDRESS SELECTION

    Address         SW1/1          SW1/2          SW1/3         SW1/4

  COM1: (3F8h)       Off            On             On            Off

  COM2: (2F8h)        On            Off            Off           Off

  COM3: (3E8h)       Off            On             On             On

  COM4: (2E8h)        On            Off            Off            On

                        INTERRUPT SELECTION

   IRQ      SW1/1    SW1/2     J1/A      J1/B      J1/C     J1/D

    3        On       Off      Open      Open      Open     Open

    4        Off       On      Open      Open      Open     Open

    5        Off      Off      Closed    Open      Open     Open

    6        Off      Off      Open      Closed    Open     Open

    7        Off      Off      Open      Open     Closed    Open

                               SIGNAL GROUND

               Function                               JP2

   Signal and chassis ground common                   Open

  Signal and chassis ground separate                 Closed

  Note: location of JP2 unidentified.

      FACTORY CONFIGURED SETTINGS

       Jumper             Setting

        JP1             Unidentified

  Note: location of JP1 unidentified.

                         Proprietary AT Command Set

                          BIT-MAPPED REGISTER S14

  Format                  AT [cmds] S14=n [cmds]

  Example:                ATS14=139<CR>

  Default:                171

  Range:                  0 - 255

  Unit:                   Bit-mapped

  Description:            Controls echo, quiet mode, result codes, dial
                          mode, and originate/answer mode.

      Bit        Value                         Function

       0         1           Not used.

       1         0           Command echo function disabled.

                  1         Command echo function enabled.

       2          0         Result code sending disabled.

                 1           Result code sending enabled.

       3         0           Numeric format enabled.

                  1         Verbose format enabled.

       4         0           Not used.

       5         0           Tone dialing mode enabled.

                  1         Pulse dialing mode enabled.

       6          0         Result codes normal.

                 1           Result codes disabled in answer mode.

       7         0           Answer mode enabled.

                  1         Originate mode enabled.

                          BIT-MAPPED REGISTER S21

  Format                  AT [cmds] S21=n [cmds]

  Example:                ATS21=1<CR>

  Default:                0

  Range:                  0 - 255

  Unit:                   Bit-mapped

  Description:            Controls low DTR action, DCD signal, and the
                          Long Space Disconnect function.

      Bit        Value                         Function

       0         0            Not used.

       1          0          Profile 0 enabled.

                 1            Profile 1 enabled.

       2

      4, 3        00         DTR signal normal.

                 01           Modem goes to command mode on low DTR.

                 10           Modem sends OK result code when DTR signal
                              normal .
                 11
                              Modem resets on DTR signal.

       5          0          DCD forced high.

                 1            DCD normal.

       6          0          DSR forced high.

                 1            DSR normal.

       7          0          Long Space Disconnect function disabled.

                 1            Long Space Disconnect function enabled.

                          BIT-MAPPED REGISTER S22

  Format                    AT [cmds] S22=n [cmds]

  Example:                  ATS22=114<CR>

  Default:                  118

  Range:                    0 - 255

  Unit:                     Bit-mapped

  Description:              Controls volume and speaker settings, result
                            codes, and make/break pulse ratio.

       Bit          Value                       Function

       1, 0         00          Lowest volume setting.

                    01          Low volume setting.

                     10        Medium volume setting

                    11          Highest volume setting.

       3, 2         00          Speaker disabled.

                     01        Speaker enabled until carrier signal
                                detected
                    10
                                Speaker enabled.
                    11
                                Speaker enabled following dialing, then
                                disabled after carrier signal detected.

     6, 5 ,4        000         Busy and dialtone detection disabled,
                                result codes 0-4 enabled.
                    100
                                Busy and dialtone detection disabled,
                    101         result codes 0-5, 10 enabled.

                    110         Busy tone detection disabled, dialtone
                                detection enabled, result codes 0-6, 10
                     111       enabled.

                                Busy tone detection enabled, dialtone
                                detection disabled, result codes 0-5, 7,
                                10 enabled.

                                Busy and dialtone detection enabled,
                                result codes 0-7, 10 enabled.

        7            0         39/61ms at 10pps (North America)

                    1           33/67ms at 10pps (Europe)

                          BIT-MAPPED REGISTER S23

  Format                    AT [cmds] S23=n [cmds]

  Example:                  ATS23=114<CR>

  Default:                  0, read-only (see note)

  Range:                    0 - 255

  Unit:                     Bit-mapped

  Description:              Controls guard tones. Also indicates detected
                            serial port speed and parity. Also provides
                            storage for remote digital loopback tests.

  Note:                     All bits except bits 6 and 7 are read-only.

        Bit          Value                       Function

         0           N/A         Reserved for internal use.

      3, 2, 1        000         Local speed detected at 300bps.

                     001         Local speed detected at 600bps.

                     010         Local speed detected at 1200bps.

                     011         Local speed detected at 2400bps.

                     100         Local speed detected at 4800bps.

                      101       Local speed detected at 9600bps.

                     110         Local speed detected at 19200bps.

                     111         Local speed detected at 38400bps.

       5, 4           00        Even parity.

                     10          Odd parity.

                     11          No parity.

       7, 6           00        Guard tone disabled.

                     01          550Hz guard tone enabled.

                     10          1800Hz guard tone enabled.

                          BIT-MAPPED REGISTER S27

  Format                   AT [cmds] S27=n [cmds]

  Example:                 ATS27=201<CR>

  Default:                 73

  Range:                   0 - 255

  Unit:                    Bit-mapped

  Description:             Controls communications mode, line type, and
                           protocol type.

  Note:                    Be aware that bits 2 and 3 are out of order.

       Bit          Value                       Function

     3, 1, 0        000        Asynchronous mode, serial port speed
                               follows connect speed.
                     101
                               Error-correcting mode.
                    110
                               Asynchronous mode, serial port speed
                               locked.

        2            0        Switched line operation enabled.

                    1          Leased line operation enabled

        4           0          Not used.

        5           0          Not used.

        6            0        Select CCITT protocols.

                    1          Select Bell protocols.

        7              0       Not used.

                                COMPRESSION

  Type:          Register

  Format:        AT [cmds] S41=n [cmds]

  Example:       ATS41=2<CR>

  Description:   Selects data compression.

  Command                                Function

  S41=0          Data compression disabled.

  S41=1          Data compression enabled.

                                COMPRESSION

  Type:          Configuration

  Format:        AT %Cn

  Example:       AT %C0 *Y1<CR>

  Description:   Selects data compression.

  Command                                Function

  %C0            Data compression disabled.

   %C1          Data compression enabled.

                               FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] \Gn [cmds]

  Example:       AT G1 &K3<CR>

  Description:   Selects modem port flow control.

  Command                                Function

   \G0          Flow control disabled.

  \G1            Flow control enabled.

                             INACTIVITY TIMER

  Type:             Register

  Format:           AT [cmds] \Tn [cmds]

  Example:          AT\T20<CR>

  Default:          0

  Range:            0-255

  Unit:             1 minute

  Description:      Sets the length of time that the modem does not
                    receive information before it disconnects.

                              LOOPBACK TESTS

  Format              AT [cmds] S16=n [cmds]

  Example:            ATS16=32<CR>

  Default:            0

  Range:              0 - 255

  Unit:               Bit-mapped

  Description:        Enables loopback tests.

  Note:               Bit 3 is read-only.

     Bit       Value                         Function

      0         0       Local analog loopback test disabled.

               1         Local analog loopback test enabled.

      1        0         Not used.

      2         0       Local digital loopback test disabled.

               1         Local digital loopback test enabled.

      3         0       Modem is not performing remote digital loopback
                         test.
               1
                         Modem is performing remote digital loopback
                         test.

      4         0       Remote digital loopback test disabled.

               1         Remote digital loopback test enabled.

      5         0       Remote digital loopback with local self-test
                         disabled.
               1
                         Remote digital loopback with local self-test
                         enabled.

      6         0       Local analog loopback with local self-test
                         disabled.
               1
                         Local analog loopback with local self-test
                         enabled.

