
COMPUTER PERIPHERALS, INC.

VIVA 28.8 INTERNAL DATA/FAX

Modem Type                   Data (asynchronous)/Fax
Maximum Data Rate            28.8Kbps
Maximum Fax Rate             14.4Kbps
Data Bus                     8-bit ISA
Fax Class                    Class I
Data Modulation Protocol     Bell 103A/212A

                             ITU-T V.22, V.22bis, V.23, V.32, V.32bis,
                             V.34

                             Rockwell V.FC
Fax Modulation Protocol      ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression MNP5, V.42, V.42bis

[Image]

                                CONNECTIONS

         Purpose           Location            Purpose           Location

  Line out                    CN1       Line in                    CN2

          BASE I/O ADDRESS SELECTION

      Port           SW1/1          SW1/2

  COM1: (3F8h)        On              On

  COM2: (2F8h)        Off             On

  COM3: (3E8h)        On             Off

  COM4: (2E8h)        Off            Off

                    INTERRUPT SELECTION

   IRQ     SW1/3   SW1/4    SW1/5    SW1/6   SW1/7    SW1/8

    3       On      Off     Off      Off      Off     Off

    4      Off      On      Off      Off      Off     Off

    5      Off      Off      On      Off      Off     Off

    7      Off      Off     Off      Off      On      Off

                         Proprietary AT Command Set

                         ACCEPT AUTO-RELIABLE MODE

  Type:          Immediate

  Format:        AT [cmds] \U [cmds]

  Description:   Accepts remote modems request for reliable link

                        AUTO FALL FORWARD/FALLBACK

  Type:          Configuration

  Format:        AT [cmds] %Gn [cmds]

  Description:   Selects auto fallback

  Command                                Function

   %G0          Fallback disabled

  %G1            Fallback enabled

                     AUTO-RELIABLE FALLBACK CHARACTER

  Type:              Configuration

  Format:            AT [cmds] %An [cmds]

  Default:           Unidentified

  Range:             0-127

  Unit:              ASCII

  Description:       Sets the character used as the auto-reliable
                     fallback character. %A0 will disable this function.

                  AUTO-RELIABLE TIME BUFFER CONFIGURATION

  Type:            Configuration

  Format:          AT [cmds] \Cn [cmds]

  Description:     Controls the handling of incoming data during
                   auto-reliable time period

     Command                              Function

   \CO            Data is discarded

       \C1         Data is buffered

       \C2         Data is discarded, sets to normal mode and sends
                   auto-reliable character to serial port.

                               AUTO-RETRAIN

  Type:          Configuration

  Format:        AT [cmds] %En [cmds]

  Description:   Selects auto-retrain mode

  Command                                Function

   %E0          Auto-retrain disable.

      %E1        Auto-retrain enabled

                          BIT-MAPPED REGISTER S14

  Format                   AT [cmds] S14? [cmds]

  Default:                 Read-only

  Range:                   0-255

  Unit:                    Bit-mapped

  Description:             Displays echo, result codes, result code
                           display, dial mode, and answer/originate mode.

       Bit          Value                      Function

        0             0       Not used

        1              0      Command echo disabled

                      1       Command echo enabled

        2              0      Result codes enabled

                      1       Result codes disabled

        3              0      Display result codes in numeric format

                      1       Display result codes in verbose format

        4             0       Not used

        5              0      Tone dial enabled

                      1       Pulse dial enabled

        6             0       Not used

        7              0      Answer mode enabled

                      1       Originate mode enabled

                          BIT-MAPPED REGISTER S21

  Format                     AT [cmds] S21? [cmds]

  Default:                   Read-only

  Range:                     0-255

  Unit:                      Bit-mapped

  Description:               Displays jack type, CTS signal, low DTR
                             action, DCD signal, DSR signal, and the long
                             space disconnect function.

        Bit           Value                      Function

         0               0       Selects RJ-11, RJ-41S, or RJ45S jack

                        1        Selects RJ-12 or RJ-13 jack

         1              0        Not used

         2               0       CTS follows RTS

                        1        CTS forced high

       4, 3             00       DTR signal ignored

                        01       Modem goes to command mode on low DTR

                        10       Modem disconnects on low DTR.
                                 Auto-Answer is disabled
                        11
                                 Modem is initialized on low DTR

         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? [cmds]

  Default:                  Read-only

  Range:                    0-255

  Unit:                     Bit-mapped

  Description:              Displays speaker volume and controls, limits
                            results codes, and make/break pulse ratio.

       Bit           Value                      Function

       1, 0            01       On volume

                       10       Medium level volume

                       11       High level volume

       3, 2            00       Speaker off

                       01       Speaker off on carrier

                       10       Speaker always on

                       11       Speaker on during handshake

     6, 5, 4           000      Basic result codes only enabled

                       100      Basic and connection speed result codes
                                enabled
                       101
                                Basic and connection speed result codes
                       110      and dialtone detection enabled

                      111       All result codes except dialtone
                                detection enabled

                                All result codes enabled

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

                       1        33/67ms at 10pps (Europe)

                          BIT-MAPPED REGISTER S23

  Format                    AT [cmds] S23? [cmds]

  Default:                  Read-only

  Range:                    0-255

  Unit:                     Bit-mapped

  Description:              Displays remote digital loopback, DTE rate
                            and parity, and guard tone.

       Bit           Value                      Function

        0               0       Remote digital loopback denied

                       1        Remote digital loopback allowed

     3, 2, 1           000      Sets serial port speed to 0-300bps

                       001      Sets serial port speed to 600bps

                       010      Sets serial port speed to 1200bps

                       011      Sets serial port speed to 2400bps

                       100      Sets serial port speed to 4800bps

                       101      Sets serial port speed to 9600bps

                       110      Sets serial port speed to 19200bps

                      111       Sets serial port speed to 38400bps

       5,4             01       Space Parity/No Parity

       7, 6            00       Guard tone disabled

                       01       Guard tone 550Hz enabled

                       10       Guard tone 1800Hz enabled

                          BIT-MAPPED REGISTER S27

  Format                  AT [cmds] S27? [cmds]

  Default:                Read-only

  Range:                  0-255

  Unit:                   Bit-mapped

  Description:            Displays synchronous/asynchronous mode, Line
                          type, clock source, and ITU-T/Bell modes.

       Bit          Value                      Function

     3, 1, 0         000     Asynchronous mode, serial port speed follows
                             connect speed
                     001
                             Asynchronous command mode and synchronous
                     010     connect mode

                     011     Asynchronous command mode and synchronous
                             connect mode
                     100
                             Asynchronous command mode on low DTR,
                             synchronous connect mode on high DTR

                             Hayes AutoSync&trade; mode

        2             0      Dial up line

                      1      Leased line

      5, 4            00     Internal transmit clock source

                      01     External transmit clock source

                     10      Remote transmit clock source

        6             0      CCITT mode

                      1      Bell mode

                                BREAK SEND

  Type:          Configuration

  Format:        AT [cmds] \Bn [cmds]

  Default:       Unidentified

  Range:         0-9

  Unit:          .1 second

  Description:   Sends break to modem

                                BREAK TYPE

  Type:            Configuration

  Format:          AT [cmds] \Kn [cmds]

  Description:     Configures action of break signal

     Command        Break from DTE     Modem receives     Break received
                                             \B             from remote
                                                              modem

       \K0         Online command     Break sent to      Buffers cleared,
                   mode enabled,      remote modem and   break sent to
                   send no break to   buffered cleared   DTE
                   remote modem

       \K1         Break sent to      Break sent to      Buffers cleared,
                   remote modem and   remote modem and   break sent to
                   buffered cleared   buffered cleared   DTE

       \K2         Online command     Send break to      Break sent
                   mode enabled,      remote modem       immediately to
                   send no break to   immediately        DTE
                   remote modem

       \K3         Send break to      Send break to      Break sent
                   remote modem       remote modem       immediately to
                   immediately        immediately        DTE

       \K4         Online command     Send break with    Break sent with
                   mode enabled,      transmitted data   received data to
                   send no break to                      the DTE
                   remote modem

   \K5            Send break with    Send break with    Break sent with
                   transmitted data   transmitted data   received data to
                                                         the DTE

                               CALLING TONE

  Type:             Configuration

  Format:           AT [cmds] -Cn [cmds]

  Description:      Controls whether the DTE will allow the modem to send
                    a 1300Hz calling tone when originating.

  Command                                 Function

   -C0             Disable calling tone

  -C1               Enable calling tone

                                COMPRESSION

  Type:          Configuration

  Format:        AT [cmds] %Cn [cmds]

  Description:   Selects data compression

  Command                                Function

      %C0        Data compression disabled

   %C1          Data compression enabled

                               CONNECT MODE

  Type:          Configuration

  Format:        AT [cmds] \Nn [cmds]

  Description:   Sets connect mode

    Command                              Function

      \N0        Normal mode enabled

      \N1        Direct mode enabled

      \N2        Reliable mode enabled

   \N3          Auto-reliable mode enabled

      \N4        LAPM mode enabled

      \N5        MNP mode enabled

                         CONVERT TO RELIABLE MODE

  Type:          Immediate

  Format:        AT [cmds] \Y [cmds]

  Description:   Initiates reliable mode link

                           EXTENDED RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] \Vn [cmds]

  Description:   Selects extended result codes

    Command                              Function

      \V0        Extended result codes disabled

      \V1        MNP extended result codes enabled

      \V2        V.42 extended result codes enabled

                               FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] \Gn [cmds]

  Description:   Selects modem port flow control

    Command                              Function

   \G0          Flow control disabled

      \G1        Flow control enabled

                             FLOW CONTROL TYPE

  Type:          Configuration

  Format:        AT [cmds] \Qn [cmds]

  Description:   Sets type of flow control used by modem

  Command                                Function

  \Q0            Flow control disabled

  \Q1            XON/XOFF flow control enabled

  \Q2            CTS flow control to DTE enabled

   \Q3          RTS/CTS flow control enabled

                             INACTIVITY TIMER

  Type:             Configuration

  Format:           AT [cmds] \Tn [cmds]

  Default:          0

  Range:            0-90

  Unit:             1 minute

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

                             INACTIVITY TIMER

  Type:                Register

  Format:              AT [cmds] S90=n [cmds]

  Default:             0

  Range:               0-255

  Unit:                1 minute

  Description:         Sets the length of time that the modem does not
                       receive information before it disconnects. S90=0
                       will disable.

                            LINE SIGNAL QUALITY

  Type:                Configuration

  Format:              AT [cmds] %Qn [cmds]

  Default:             Unidentified

  Range:               0-255

  Description:         Sets the line quality at which the modem will
                       retrain. If the line quality drops below n, the
                       modem will retrain.

                             LOCK SERIAL PORT

  Type:          Configuration

  Format:        AT [cmds] \Jn [cmds]

  Description:   Sets operation of serial port speed

  Command                                Function

   \J0          Serial speed locked

  \J1            Serial speed follows connect speed

                           MODULATION SELECTION

  Type:               Configuration

  Format:             AT [cmds] +MS=xx,y,zzz,aaa [cmds]

  Example:            AT+MS10,0,4800,26400<CR>

  Description:        Sets options for active protocol. The transfer
                      rates specified by z and a must be valid for the
                      protocol selected.

      Command                              Function

        x=0           V.21

        x=1           V.22

        x=2           V.22bis

        x=3           V.23 1200/75

        x=8           V.32

        x=9           V.32bis

   x=10              V.34

        x=13          V.23 75/1200

        x=64          Bell 103A

        x=69          Bell 212A

        x=74          V.FC

        y=0           Automode disabled

        y=1           Auto-detect highest speed enabled without V.8
                      (except for V.34)

   y=2               Auto-detect highest speed enabled with V.8

      z, a=300        Set minimum or maximum transfer rate at 300bps,
                      respectively.

     z, a=1200        Set minimum or maximum transfer rate at 1200bps,
                      respectively.

     z, a=2400        Set minimum or maximum transfer rate at 2400bps,
                      respectively.

     z, a=4800        Set minimum or maximum transfer rate at 4800bps,
                      respectively.

     z, a=9600        Set minimum or maximum transfer rate at 9600bps,
                      respectively.

     z, a=12000       Set minimum or maximum transfer rate at 12000bps,
                      respectively.

     z, a=14400       Set minimum or maximum transfer rate at 14400bps,
                      respectively.

     z, a=16800       Set minimum or maximum transfer rate at 16800bps,
                      respectively.

     z, a=19200       Set minimum or maximum transfer rate at 19200bps,
                      respectively.

     z, a=21600       Set minimum or maximum transfer rate at 21600bps,
                      respectively.

     z, a=24000       Set minimum or maximum transfer rate at 24000bps,
                      respectively.

     z, a=26400       Set minimum or maximum transfer rate at 26400bps,
                      respectively.

     z, a=28800       Set minimum or maximum transfer rate at 28800bps,
                      respectively.

                       MODULATION SELECTION DISPLAY

  Type:          Immediate

  Format:        AT [cmds] +MS? [cmds]

  Description:   Displays modulation, automode, minimum rate and maximum
                 rate settings

                    MAXIMUM BLOCK SIZE FOR TRANSMISSION

  Type:          Configuration

  Format:        AT [cmds] \An [cmds]

  Description:   Sets the maximum transmittable block size

  Command                                Function

  \A0            MNP block size is 64 characters

  \A1            MNP block size is 128 characters

  \A2            MNP block size is 192 characters

   \A3          MNP block size is 256 characters

                         ON-LINE IN RELIABLE MODE

  Type:          Immediate

  Format:        AT [cmds] \O [cmds]

  Description:   Returns to on-line and requests reliable mode connection

                           SWITCH TO NORMAL MODE

  Type:          Immediate

  Format:        AT [cmds] \Z [cmds]

  Description:   Switches to normal mode from MNP mode

                                TEST MODES

  Format                  AT [cmds] S16? [cmds]

  Default:                Read-only

  Range:                  0-255

  Unit:                   Bit-mapped

  Description:            Displays loopback tests, analog, digital,
                          remote digital, and self tests.

      Bit         Value                        Function

       0             0       Local analog loopback not in progress

                    1        Local analog loopback in progress

       1            0        Not used

       2             0       Local digital loopback not in progress

                    1        Local digital loopback in progress

       3             0       Modem not in remote digital loopback

                    1        Remote digital loopback in progress

       4             0       Remote digital loopback not requested

                    1        Remote digital loopback requested

       5             0       Remote digital loopback w/ self-test not in
                             progress
                    1
                             Remote digital loopback w/ self-test in
                             progress

       6             0       Local analog loopback w/ self-test not in
                             progress
                    1
                             Local analog loopback w/ self-test in
                             progress

                        V.42bis COMPRESSION CONTROL

  Type:          Configuration

  Format:        AT [cmds] "Hn [cmds]

  Description:   Controls V.42bis data compression

  Command                                Function

  "H0            V.42bis disabled

  "H1            V.42bis when transmitting enabled

  "H2            V.42bis when receiving enabled

   "H3          V.42bis when transmitting/receiving enabled

                           V.42 DETECTION PHASE

  Type:          Configuration

  Format:        AT [cmds] -Jn [cmds]

  Description:   Controls V.42 detection

  Command                                Function

  -J0            V.42 detection disabled

   -J1          V.42 detection enabled

                       V.42bis MAXIMUM STRING LENGTH

  Type:          Configuration

  Format:        AT [cmds] "O=n [cmds]

  Default:       16

  Range:         6-250

  Unit:          1 ASCII character

  Description:   Selects string size for V.42bis compression

                           XON/XOFF PASS-THROUGH

  Type:          Configuration

  Format:        AT [cmds] \Xn [cmds]

  Description:   Selects whether XON/XOFF signals are sent to remote
                 modem

    Command                              Function

      \X0        XON/XOFF signals trapped by local modem

      \X1        XON/XOFF passed through local modem

