
MOTOROLA, INC.

V.34R

Card Type                     Modem (synchronous/asynchronous)
Chip Set                      Motorola
Maximum Data Rate             28.8Kbps
Maximum Fax Rate              14.4Kbps
Data Bus                      Serial
Fax Class                     Class I
Data Modulation Protocol      Bell 103A, 212A

                              ITU-T V.17, V.21, V.22, V.22bis, V.27bis,
                              V.29, V.32, V.32bis, V.33, V.34
Fax Modulation Protocol       ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression  MNP5, V.42, V.42bis

[Image]

                                CONNECTIONS

          Function            Label            Function             Label

  AC power in                  CN1     Line in                      CN4

  Serial port                  CN2     Power switch                 SW1

  Line out                     CN3     Talk/Data button             SW2

                             DIAGNOSTIC LED(S)

    LED         Color         Status                 Condition

     CD          Red            On           Carrier signal detected or
                                            error correction negotiation
                                                     completed

     CD          Red           Off          Carrier signal not detected

     TD          Red            On          Modem is transmitting data

     TD          Red           Off        Modem is not transmitting data

     RD          Red            On            Modem is receiving data

     RD          Red           Off          Modem is not receiving data

     TR          Red            On              DTR signal is high

     TR          Red           Off               DTR signal is low

     CS          Red            On              CTS signal is high

     CS          Red           Off               CTS signal is low

     RS          Red            On              RTS signal is high

     RS          Red           Off               RTS signal is low

            Note: The function of the TALK LED is unidentified.

                        SUPPORTED STANDARD COMMANDS

                             Basic AT Commands

  +++, comma, A/

  A, D, E, L, M, O, Q, V, W, X, Y, Z

  &D, &F, &G, &P, &V, &W, &X, &Y

                           Extended AT Commands

  \V

  %E

                                S-Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18,
  S22, S23, S25, S26

                             V.25bis Commands

  The V.25bis command set is unidentified.

            Note: See MHI documentation for complete information.

                         Proprietary AT Command Set

                           AUTO-ANSWER OVERRIDE

  Type:                  Immediate

  Format:                AT [cmds] *IC [cmds]

  Description:           Instructs the modem to ignore the incoming call,
                         if the modem is set to automatically answer.

                          AUTO-DIAL STORED NUMBER

  Type:               Configuration

  Format:             AT [cmds] *AUn [cmds]

  Description:        Sets the auto-dialing function to dial the number
                      stored in memory location n.

                     AUTO-RELIABLE FALLBACK CHARACTER

  Type:                  Register

  Format:                AT [cmds] S64=n [cmds]

  Default:               13

  Range:                 0-127

  Unit:                  ASCII

  Description:           Sets the character used as the auto-reliable
                         fallback character. S64=0 will disable this
                         function.

                          BIT-MAPPED REGISTER S21

  Format              AT [cmds] S21=n [cmds]

  Default:            132

  Range:              0 - 255

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

  Note:               Be aware that the bits are out of order.

   Bit      Value                          Function

   6, 0          00   DSR forced high.

                 01   DSR normal, except forced low on disconnect.

                 10   DSR normal.

                11    DSR follows OH.

   5, 1          00   CD forced high.

                 01   CD forced high except during disconnect.

                 10   CD normal.

                11    CD follows remote RTS signal.

    2             0   CTS normal.

                 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.

                11    Modem resets on low DTR.

    7             0   Long Space Disconnect function disabled.

                 1    Long Space Disconnect function enabled.

                          BIT-MAPPED REGISTER S27

  Format             AT [cmds] S27=n [cmds]

  Default:           9

  Range:             0 - 127

  Description:       Selects sync/async mode, line type, clock source,
                     and ITU-T/Bell modes.

   Bit      Value                          Function

   1, 0         00   Asynchronous command and data modes.

                01   Asynchronous command, synchronous connect mode.

                10   DTR dialing enabled, synchronous connect mode.

               11    Manual dialing only, synchronous connect mode.

    2            0   Switched line.

                1    Leased line.

    3           0    Not used.

   5, 4         00   Internal DTE transmit clock source.

                01   External DTE transmit clock source.

               10    Slave DTE transmit clock source.

    6            0   DTR dialing enabled.

                1    DTR dialing disabled.

                          BIT-MAPPED REGISTER S29

  Format               AT [cmds] S29=n [cmds]

  Default:             0

  Range:               0 - 135

  Description:         Controls command set, option retaining, V.32 fast
                       handshaking, and DTE fallback.

    Bit      Value                          Function

     0             0   AT command set enabled.

                  1    AT command set disabled.

     1             0   Modem will not reset on disconnect.

                  1    Modem will reset on disconnect.

     2             0   Normal V.32 handshake sequence.

                  1    Training time is shortened by 2 seconds in V.32
                       and V.32bis modes.

   6 - 3       0000    Not used.

     7             0   DTR dialing enabled.

                  1    DTR dialing disabled.

                          BIT-MAPPED REGISTER S57

  Format:             AT [cmds] S57=n [cmds]

  Default:            0

  Range:              0 - 33

  Description:        Controls result code format and busy out.

     Bit        Value                        Function

      0              0   Result code 15 is CONNECT 4800 and code 18 is
                         CONNECT 9600 (standard).
                    1
                         Result code 11 is CONNECT 4800 and code 12 is
                         CONNECT 9600 (Motorola).

    4 - 1         0000   Not used.

      5               0  Busy out during local analog loopback test
                         disabled.
                     1
                         Busy out during local analog loopback test
                         enabled.

                          BIT-MAPPED REGISTER S60

  Format                 AT [cmds] S60=n [cmds]

  Default:               67

  Range:                 0 - 199

  Description:           Controls auto-retrain, MNP, auto-reliable time
                         buffering, RI signal, and extended result codes.

   Bit        Value                         Function

    0                0   Auto-retrain disabled.

                    1    Auto-retrain enabled.

    1                0   MNP disabled.

                    1    MNP enabled.

    2                0   Data is discarded during auto-reliable time.

                    1    Data is buffered during auto-reliable time.

  5 - 3           000    Not used.

    6                0   RI signal high during rings, and forced high for
                         duration of call.
                    1
                         RI signal high during rings only.

    7                0   Extended result codes disabled.

                    1    Extended result codes enabled.

                          BIT-MAPPED REGISTER S70

  Format               AT [cmds] S70=n [cmds]

  Default:             15

  Range:               0 - 15

  Description:         Controls connect mode and V.42 negotiation mode.

    Bit      Value                          Function

  2, 1, 0        000   Normal mode enabled.

                 001   Direct mode enabled.

                 010   MNP mode only enabled.

                 011   MNP mode with fallback to normal mode enabled.

                 100   LAP-M mode only enabled.

                 101   LAP-M mode with fallback to normal mode enabled.

                 110   LAP-M mode with fallback to MNP enabled.

                111    LAP-M mode with fallback to MNP and normal modes
                       enabled.

     3             0   Normal V.42 handshaking enabled.

                  1    Fast V.42 handshaking enabled.

                          BIT-MAPPED REGISTER S72

  Format                 AT [cmds] S72=n [cmds]

  Default:               0

  Range:                 0 - 137

  Description:           Controls serial port lock, CTS signal, and
                         auto-callback function.

   Bit        Value                          Function

    0                0   Serial speed locked.

                    1    Serial speed follows connect speed.

   2, 1            00    Not used.

    3                0   CTS normal.

                    1    CTS follows CD.

  6 - 4           000    Not used.

    7                0   Auto-callback disabled.

                    1    Auto-callback enabled. The modem, upon detecting
                         an incoming call, will dial the default number
                         and connect with it instead of the incoming
                         call.

                               BREAK LENGTH

  Type:          Register

  Format:        AT [cmds] S79=n [cmds]

  Default:       35

  Range:         0 - 255

  Unit:          20 ms

  Description:   Sets the length of breaks sent from DCE to DTE.

                                   BREAK TYPE

  Type:                  Configuration

  Format:                AT [cmds] \Kn [cmds]

  Description:           Configures action of break signal.

   Command      Break from DTE     Break from         Modem        Break from
                                       DTE        receives \B     remote modem
                Reliable/Normal
                     mode         Direct mode

     \K0        Enter command     Send break to   Buffers         Buffers
                mode, do not      remote modem    cleared and     cleared and
                send break to     immediately,    break sent to   break sent to
                remote modem.     then enter      remote modem.   DTE.
                                  command mode.

     \K1        Buffers cleared   Send break to   Buffers         Buffers
                and break sent    remote modem    cleared and     cleared and
                to remote         immediately.    break sent to   break sent to
                modem.                            remote modem.   DTE.

     \K2        Enter command     Send break to   Send break to   Send break to
                mode, do not      remote modem    remote modem    DTE
                send break to     immediately,    immediately.    immediately.
                remote modem.     then enter
                                  command mode.

     \K3        Send break to     Send break to   Send break to   Send break to
                remote modem      remote modem    remote modem    DTE
                immediately.      immediately.    immediately.    immediately.

     \K4        Enter command     Send break to   Send break to   Break sent
                mode, do not      remote modem    remote modem    with received
                send break to     immediately,    with            data to the
                remote modem.     then enter      transmitted     DTE.
                                  command mode.   data.

     \K5        Send break with   Send break to   Send break to   Break sent
                transmitted       remote modem    remote modem    with received
                data.             immediately.    with            data to the
                                                  transmitted     DTE.
                                                  data.

                                   BREAK TYPE

  Type:                  Register

  Format:                AT [cmds] S59=n [cmds]

  Description:           Configures action of break signal.

   Command      Break from DTE     Break from         Modem        Break from
                                       DTE        receives \B     remote modem
                Reliable/Normal
                     mode         Direct mode

    S59=0       Enter command     Send break to   Buffers         Buffers
                mode, do not      remote modem    cleared and     cleared and
                send break to     immediately,    break sent to   break sent to
                remote modem.     then enter      remote modem.   DTE.
                                  command mode.

    S59=1       Buffers cleared   Send break to   Buffers         Buffers
                and break sent    remote modem    cleared and     cleared and
                to remote         immediately.    break sent to   break sent to
                modem.                            remote modem.   DTE.

    S59=2       Enter command     Send break to   Send break to   Send break to
                mode, do not      remote modem    remote modem    DTE
                send break to     immediately,    immediately.    immediately.
                remote modem.     then enter
                                  command mode.

    S59=3       Send break to     Send break to   Send break to   Send break to
                remote modem      remote modem    remote modem    DTE
                immediately.      immediately.    immediately.    immediately.

    S59=4       Enter command     Send break to   Send break to   Break sent
                mode, do not      remote modem    remote modem    with received
                send break to     immediately,    with            data to the
                remote modem.     then enter      transmitted     DTE.
                                  command mode.   data.

    S59=5       Send break with   Send break to   Send break to   Break sent
                transmitted       remote modem    remote modem    with received
                data.             immediately.    with            data to the
                                                  transmitted     DTE.
                                                  data.

                        CHARACTER LENGTH AND PARITY

  Format           AT [cmds] S61? [cmds]

  Default:         Read-only

  Range:           0 - 56

  Description:     Reports current character length and parity.

   Bit    Value                           Meaning

  2 - 0     000    Not used.

    3          0   7 bit character length set.

              1    8 bit character length set.

  5, 4        00   MARK parity.

              01   No parity.

              10   Odd parity.

             11    Even parity.

                                COMMAND SET

  Type:                  Configuration

  Format:                AT [cmds] *NTn [cmds]

  Description:           Disables the AT command set.

  Note:                  To re-enable the command set, cycle power on the
                         modem or hold the Talk/Data switch in for at
                         least five seconds.

        Command                              Function

          *NT0           Command set disabled.

          *NT1           Command set enabled.

                            COMMUNICATIONS MODE

  Type:          Configuration

  Format:        AT [cmds] &Mn [cmds]

  Description:   Selects the active communications mode.

    Command                              Function

      &M0        Asynchronous command and data modes.

      &M1        Asynchronous command and synchronous connect mode.

      &M2        DTR dialing enabled and synchronous connect mode.

      &M3        Manual dialing only and synchronous connect mode.

      &M4        V.25bis BISYNC command and synchronous connect mode.

      &M5        V.25bis SDLC command and synchronous connect mode.

      &M6        V.25bis asynchronous command and synchronous connect
                 mode.

                                COMPRESSION

  Type:          Register

  Format:        AT S56=n

  Description:   Selects data compression.

    Command                              Function

     S56=0       Data compression disabled.

     S56=1       Data compression enabled on transmit only.

     S56=2       Data compression enabled on receive only.

     S56=3       Data compression enabled.

                COMPRESSION AND ERROR CORRECTION - CURRENT

  Type:           Register

  Format:         AT [cmds] S71? [cmds]

  Default:        Read-only

  Description:    Reports current compression and error correction
                  protocols.

     Value                                Meaning

       0          No compression or error correction protocols active.

       1          Negotiation in progress.

       2          MNP2 active.

       3          MNP3 active.

       4          MNP4 active.

       5          MNP5 active.

       6          V.42 active.

       7          V.42bis active.

                        CONNECTION SPEED - CURRENT

  Type:          Register

  Format:        AT [cmds] S67? [cmds]

  Default:       Read-only

  Description:   Reports current connection speed.

     Value                               Meaning

       1         300bps current speed.

       3         1200bps current speed.

       4         2400bps current speed.

       5         4800bps current speed.

       6         7200bps current speed.

       7         9600bps uncoded current speed.

       8         9600bps current speed.

       9         12Kbps current speed.

       10        14.4Kbps current speed.

       11        16.8Kbps current speed.

       12        19.2Kbps current speed.

       13        21.6Kbps current speed.

       14        24Kbps current speed.

       15        26.4Kbps current speed.

       16        28.8Kbps current speed.

                       CONNECTION SPEED LOWER LIMIT

  Type:          Configuration

  Format:        AT [cmds] %Ln [cmds]

  Description:   Sets slowest allowed connection speed.

    Command                              Function

      %L0        No minimum speed.

      %L1        No minimum speed.

      %L2        Select 1200bps minimum speed.

      %L3        Select 2400bps minimum speed.

      %L4        Select 4800bps minimum speed.

      %L5        Select 9600bps uncoded minimum speed.

      %L6        Select 9600bps minimum speed.

      %L7        Select 7200bps minimum speed.

      %L8        Select 12Kbps minimum speed.

      %L9        Select 14.4Kbps minimum speed.

      %L11       Select 16.8Kbps minimum speed.

      %L12       Select 19.2Kbps minimum speed.

      %L13       Select 21.6Kbps minimum speed.

      %L14       Select 24Kbps minimum speed.

      %L15       Select 26.4Kbps minimum speed.

      %L16       Select 28.8Kbps minimum speed.

                       CONNECTION SPEED LOWER LIMIT

  Type:          Register

  Format:        AT [cmds] S81=n [cmds]

  Description:   Sets slowest allowed connection speed.

    Command                              Function

     S81=0       No minimum speed.

     S81=1       No minimum speed.

     S81=2       Select 1200bps minimum speed.

     S81=3       Select 2400bps minimum speed.

     S81=4       Select 4800bps minimum speed.

     S81=5       Select 9600bps uncoded minimum speed.

     S81=6       Select 9600bps minimum speed.

     S81=7       Select 7200bps minimum speed.

     S81=8       Select 12Kbps minimum speed.

     S81=9       Select 14.4Kbps minimum speed.

     S81=11      Select 16.8Kbps minimum speed.

     S81=12      Select 19.2Kbps minimum speed.

     S81=13      Select 21.6Kbps minimum speed.

     S81=14      Select 24Kbps minimum speed.

     S81=15      Select 26.4Kbps minimum speed.

     S81=16      Select 28.8Kbps minimum speed.

                       CONNECTION SPEED UPPER LIMIT

  Type:          Configuration

  Format:        AT [cmds] %Bn [cmds]

  Description:   Sets fastest allowed connection speed.

    Command                              Function

      %B0        Follow serial port speed.

      %B1        Select 300bps maximum speed.

      %B2        Select 1200bps maximum speed.

      %B3        Select 2400bps maximum speed.

      %B4        Select 4800bps maximum speed.

      %B5        Select 9600bps uncoded maximum speed.

      %B6        Select 9600bps maximum speed.

      %B7        Select 7200bps maximum speed.

      %B8        Select 12Kbps maximum speed.

      %B9        Select 14.4Kbps maximum speed.

      %B11       Select 16.8Kbps maximum speed.

      %B12       Select 19.2Kbps maximum speed.

      %B13       Select 21.6Kbps maximum speed.

      %B14       Select 24Kbps maximum speed.

      %B15       Select 26.4Kbps maximum speed.

      %B16       Select 28.8Kbps maximum speed.

                       CONNECTION SPEED UPPER LIMIT

  Type:          Configuration

  Format:        AT [cmds] S69=n [cmds]

  Description:   Sets fastest allowed connection speed.

    Command                              Function

     S69=0       Follow serial port speed.

     S69=1       Select 300bps maximum speed.

     S69=3       Select 1200bps maximum speed.

     S69=4       Select 2400bps maximum speed.

     S69=5       Select 4800bps maximum speed.

     S69=6       Select 7200bps maximum speed.

     S69=7       Select 9600bps uncoded maximum speed.

     S69=8       Select 9600bps maximum speed.

     S69=9       Select 12Kbps maximum speed.

     S69=10      Select 14.4Kbps maximum speed.

     S69=11      Select 16.8Kbps maximum speed.

     S69=12      Select 19.2Kbps maximum speed.

     S69=13      Select 21.6Kbps maximum speed.

     S69=14      Select 24Kbps maximum speed.

     S69=15      Select 26.4Kbps maximum speed.

     S69=16      Select 28.8Kbps maximum speed.

                                CTS SIGNAL

  Type:          Configuration

  Format:        AT [cmds] &Rn [cmds]

  Description:   Selects the function of the CTS signal.

    Command                              Function

      &R0        RTS to CTS delay enabled.

      &R1        CTS forced high.

      &R2        CTS follows CD.

      &R9        CTS follows RTS.

                                DCD SIGNAL

  Type:           Configuration

  Format:         AT [cmds] &Cn [cmds]

  Description:    Configures the behavior of the DCD signal.

    Command                              Function

      &C0         DCD forced high.

      &C1         DCD normal.

      &C2         DCD forced high except during handshaking and
                  disconnecting.

      &C3         DCD follows remote RTS signal.

                          DISCONNECT BUFFER DELAY

  Type:                   Register

  Format:                 AT [cmds] S62=n [cmds]

  Default:                0

  Range:                  0-255

  Unit:                   1 second

  Description:            Configures how long the modem will wait to
                          disconnect if there is data in the transmit or
                          receive buffers.

                       DISCONNECT ON LOSS OF CURRENT

  Type:             Configuration

  Format:           AT [cmds] *LCn [cmds]

  Description:      Causes the modem to disconnect if the telephone
                    lines current drops.

     Command                              Function

       *LC0         Do not disconnect on loss of current.

       *LC1         Disconnect after 8ms if current is lost.

       *LC2         Disconnect after 90ms if current is lost.

                       DISCONNECT ON LOSS OF CURRENT

  Type:             Register

  Format:           AT [cmds] S32=n [cmds]

  Description:      Causes the modem to disconnect if the telephone
                    lines current drops.

     Command                              Function

      S32=0         Do not disconnect on loss of current.

      S32=2         Disconnect after 90ms if current is lost.

      S32=4         Disconnect after 8ms if current is lost.

                             DISCONNECT RESET

  Type:          Configuration

  Format:        AT [cmds] *ROn [cmds]

  Description:   Selects whether the modem will reset on disconnect.

    Command                              Function

      *RO0       Modem will not reset on disconnect.

      *RO1       Modem will reset on disconnect.

                            DISPLAY INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays modem properties.

    Command                              Function

       I0        Displays product code.

       I1        Displays checksum number.

       I3        Displays firmware version.

       I4        Displays feature code.

       I5        Displays reason for last disconnect.

                          DISPLAY PRODUCT VERSION

  Type:          Immediate

  Format:        AT [cmds] %V [cmds]

  Description:   Displays product version.

                           DISPLAY SERIAL NUMBER

  Type:          Immediate

  Format:        AT [cmds] $V [cmds]

  Description:   Displays product serial number.

                          DISPLAY STORED NUMBERS

  Type:          Immediate

  Format:        AT [cmds] *ND [cmds]

  Description:   Displays all stored phone numbers.

                                DSR SIGNAL

  Type:          Configuration

  Format:        AT [cmds] &Sn [cmds]

  Description:   Controls the behaviour of the DSR signal.

    Command                              Function

      &S0        DSR forced high.

      &S1        DSR normal.

      &S2        DSR normal, except forced low on disconnect.

      &S3        DSR follows OH.

                           EXTENDED RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] S82=n [cmds]

  Description:   Selects extended result codes.

    Command                              Function

     S82=0       Display DTE rate; extended result codes disabled.

     S82=4       Display DCE rate; extended result codes enabled.

     S82=8       Display DCE rate; extended result codes disabled.

                FLOW CONTROL CHARACTER - XOFF FROM TERMINAL

  Type:          Register

  Format:        AT [cmds] S45=n [cmds]

  Default:       19

  Range:         0-127

  Unit:          ASCII

  Description:   Sets the character the terminal sends to represent XOFF.

                 FLOW CONTROL CHARACTER - XOFF TO TERMINAL

  Type:          Register

  Format:        AT [cmds] S50=n [cmds]

  Default:       19

  Range:         0-127

  Unit:          ASCII

  Description:   Sets the character the modem sends to represent XOFF.

                FLOW CONTROL CHARACTER - XON FROM TERMINAL

  Type:          Register

  Format:        AT [cmds] S44=n [cmds]

  Default:       17

  Range:         0-127

  Unit:          ASCII

  Description:   Sets the character the terminal sends to represent XON.

                 FLOW CONTROL CHARACTER - XON TO TERMINAL

  Type:          Register

  Format:        AT [cmds] S49=n [cmds]

  Default:       17

  Range:         0-127

  Unit:          ASCII

  Description:   Sets the character the modem sends to represent XON.

                             FLOW CONTROL MODE

  Format           AT [cmds] S54=n [cmds]

  Default:         33

  Range:           0 - 123

  Description:     Controls flow control type and pass-through.

   Bit    Value                           Function

  1, 0        00   Flow control disabled.

              01   Bidirectional XON/XOFF flow control enabled.

              10   CTS flow control by DCE enabled.

             11    Bidirectional CTS/RTS flow control enabled.

    2         0    Not used.

    3          0   Flow control disabled.

              1    Flow control enabled.

    4          0   XON/XOFF signals trapped by local modem.

              1    XON/XOFF passed through local modem.

  6, 5        00   Flow control by DCE disabled.

              01   XON/XOFF flow control by DCE enabled.

              10   RTS flow control by DCE enabled.

             11    RTS flow control by DCE enabled.

                               FORCE RETRAIN

  Type:           Immediate

  Format:         AT [cmds] *RRn [cmds]

  Description:    Forces the modem to attempt to retrain to the selected
                  speed.

    Command                              Function

      *RR0        Attempt 2400bps speed.

      *RR1        Attempt 4800bps speed.

      *RR2        Attempt 7200bps speed.

      *RR3        Attempt 9600bps speed.

      *RR4        Attempt 12Kbps speed.

      *RR5        Attempt 14.4Kbps speed.

      *RR6        Attempt 16.8Kbps speed.

      *RR7        Attempt 19.2Kbps speed.

      *RR8        Attempt 21.6Kbps speed.

      *RR9        Attempt 24Kbps speed.

     *RR10        Attempt 26.4Kbps speed.

     *RR11        Attempt 28.8Kbps speed.

                               HANG UP MODE

  Type:                Immdeiate/Configuration

  Format:              AT [cmds] Hn [cmds]

  Description:         Commands the modem to go on- or off-hook, and
                       selects how the modem will hang up.

       Command                              Function

         H0            Modem commanded to go on-hook (hang up).

         H1            Modem commanded to go off-hook (pick up).

         H2            Set hang up mode to normal on next ATH0 command

         H3            Set hang up mode to fast on next ATH0 command

                               HELP SCREENS

  Type:                   Immediate

  Format:                 AT $H=xxxx

  Description:            Shows help screens. If a string is included as
                          shown in the example, the modem will search for
                          the string; otherwise, the whole help section
                          will be displayed.

                             INACTIVITY TIMER

  Type:                 Register

  Format:               AT [cmds] S58=n [cmds]

  Default:              0

  Range:                0-255

  Unit:                 1 minute

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

                     LEASED LINE BACKUP RECOVERY DELAY

  Type:               Register

  Format:             AT [cmds] S28=n [cmds]

  Default:            15

  Range:              0-255

  Unit:               1 minute

  Description:        After leased line failure, modem attempts to
                      reconnect after specified delay.

                         LEASED LINE BACKUP NUMBER

  Type:                Register

  Format:              AT [cmds] S35=n [cmds]

  Description:         Sets the stored number the modem will dial for DTR
                       dialing and leased-line backup.

                     LOCAL SERIAL PORT SPEED - CURRENT

  Type:          Configuration

  Format:        AT [cmds] S80=n [cmds]

  Description:   Reports the current serial port speed.

    Command                              Function

       1         300bps current speed.

       2         600bps current speed.

       3         1200bps current speed.

       4         2400bps current speed.

       5         4800bps current speed.

       6         7200bps current speed.

       7         9600bps current speed.

       8         12Kbps current speed.

       9         14.4Kbps current speed.

       10        16.8Kbps current speed.

       11        19.2Kbps current speed.

       12        21.6Kbps current speed.

       13        24Kbps current speed.

       14        26.4Kbps current speed.

       15        28.8Kbps current speed.

       16        38.4Kbps current speed.

       17        57.6Kbps current speed.

       18        115.2Kbps current speed.

                 LOCAL SERIAL PORT SPEED CHANGE ON PIN 23

  Type:                  Configuration

  Format:                AT [cmds] *FBn [cmds]

  Description:           Selects whether a voltage transition on pin 23
                         will cause the modem to change the serial port
                         speed.

        Command                              Function

          *FB0           Pin 23 transition ignored.

          *FB1           Pin 23 negative causes modem to increase serial
                         port speed; pin 23 positive causes modem to
                         decrease serial port speed.

                    MAXIMUM BLOCK SIZE FOR TRANSMISSION

  Type:          Register

  Format:        AT [cmds] S63=n [cmds]

  Description:   Sets the maximum transmittable block size.

    Command                              Function

     S63=0       MNP block size is 64 characters.

     S63=1       MNP block size is 128 characters.

     S63=2       MNP block size is 192 characters.

     S63=3       MNP block size is 256 characters.

                              PROTOCOL/SPEED

  Type:          Configuration

  Format:        AT [cmds] *MMn [cmds]

  Description:   Selects the protocol to use on the next connection.

    Command                              Function

      *MM0       Auto-detect fastest common protocol.

      *MM1       Selects V.21.

      *MM2       Selects Bell 103.

      *MM5       Selects V.22bis.

     *MM11       Selects V.32bis.

     *MM12       Selects V.34.

                              PROTOCOL/SPEED

  Type:          Configuration

  Format:        AT [cmds] S88=n [cmds]

  Description:   Selects the protocol to use on the next connection.

    Command                              Function

     S88=0       Auto-detect fastest common protocol.

     S88=1       Selects V.21.

     S88=2       Selects Bell 103.

     S88=5       Selects V.22bis.

     S88=11      Selects V.32bis.

     S88=12      Selects V.34.

                         PROTOCOL/SPEED - CURRENT

  Type:          Configuration

  Format:        AT [cmds] S91? [cmds]

  Description:   Returns a value indicating the current protocol.

     Value                               Meaning

       0         Auto-detect fastest common protocol.

       1         Selects V.21.

       2         Selects Bell 103.

       5         Selects V.22bis.

       11        Selects V.32bis.

       12        Selects V.34.

                           REMOTE CONFIGURATION

  Type:                  Configuration

  Format:                AT [cmds] %T=n [cmds]

                         AT [cmds] D<#>%Tn [cmds]

  Description:           Initiates a remote configuration session. This
                         command may follow a dial command, omitting the
                         equal sign, to initiate remote configuration
                         immediately on connection. %T with no parameter
                         will quit the current session.

                       REMOTE CONFIGURATION PASSWORD

  Type:                  Configuration

  Format:                AT [cmds] %P=nnnn [cmds]

  Default:               N/A

  Range:                 0-99999999, D, <none>

  Description:           Sets the security code that a remote modem must
                         send to begin a remote configuration sessions.
                         If nnnn is omitted, the code will be cleared; if
                         a D is given, remote configuration is disabled.

                             RESULT CODE MODE

  Type:             Configuration

  Format:           AT [cmds] *RCn [cmds]

  Description:      Selects normal or Motorola result code numbering.

      Command                             Function

       *RC0         Result code 15 is CONNECT 4800 and code 18 is CONNECT
                    9600 (standard).

       *RC1         Result code 11 is CONNECT 4800 and code 12 is CONNECT
                    9600 (Motorola).

                            RETRAIN SENSITIVITY

  Type:                Configuration

  Format:              AT [cmds] %Rn [cmds]

  Description:         Sets how poor line conditions must be before the
                       modem will initiate a retrain.

       Command                             Function

         %R0           Modem will not initiate retrain.

         %R1           Modem will initiate retrain when the Bit Error
                       Rate exceeds 10-5.

         %R2           Modem will initiate retrain when the Bit Error
                       Rate exceeds 10-4.

         %R3           Modem will initiate retrain when the Bit Error
                       Rate exceeds 10-3.

                            RETRAIN SENSITIVITY

  Type:                Register

  Format:              AT [cmds] S53=n [cmds]

  Description:         Sets how poor line conditions must be before the
                       modem will initiate a retrain.

       Command                             Function

        S53=0          Modem will not initiate retrain.

        S53=4          Modem will initiate retrain when the Bit Error
                       Rate exceeds 10-5.

        S53=8          Modem will initiate retrain when the Bit Error
                       Rate exceeds 10-4.

       S53=12          Modem will initiate retrain when the Bit Error
                       Rate exceeds 10-3.

                                 RI SIGNAL

  Type:            Configuration

  Format:          AT [cmds] \Rn [cmds]

  Description:     Controls the behavior of the Ring Indicator signal.

     Command                              Function

       \R0         RI signal high during rings and forced high for
                   duration of call.

       \R1         RI signal high during rings only.

                      SECURITY - AUTO-CALLBACK DELAY

  Type:                  Register

  Format:                AT [cmds] S78=n [cmds]

  Default:               30

  Range:                 0-255

  Unit:                  1 second

  Description:           Configures how long the modem will wait to
                         execute the auto-callback sequence after an
                         incoming call is detected.

                         SECURITY - CALLBACK DELAY

  Type:                  Register

  Format:                AT [cmds] S74=n [cmds]

  Default:               15

  Range:                 0-255

  Unit:                  1 second

  Description:           Configures how long the modem will wait to
                         execute a callback sequence after the user has
                         disconnected.

                         SECURITY - CALLBACK RETRY

  Type:                  Register

  Format:                AT [cmds] S75=n [cmds]

  Default:               Unidentified

  Range:                 0-255

  Unit:                  1 redial

  Description:           Sets how many times the modem will attempt to
                         execute a callback if the first call fails.

                      SECURITY - CALLBACK RETRY DELAY

  Type:                   Register

  Format:                 AT [cmds] S76=n [cmds]

  Default:                15

  Range:                  0-255

  Unit:                   1 second

  Description:            Configures how long the modem will wait to
                          execute another callback sequence after one has
                          failed.

                  SECURITY - FAILED LOGIN ATTEMPT MAXIMUM

  Type:                 Register

  Format:               AT [cmds] S77=n [cmds]

  Default:              Unidentified

  Range:                0-255

  Unit:                 1 attempt

  Description:          Sets the maximum number of failed logins the
                        modem will accept until it disconnects.

                         SECURITY - PASSWORD TIME

  Type:               Register

  Format:             AT [cmds] S73=n [cmds]

  Default:            Unidentified

  Range:              0-255

  Unit:               1 second

  Description:        Configures how long the modem will wait for a
                      password when in secure mode.

                            STATUS REGISTER BIT

  Type:          Configuration

  Format:        Write: AT [cmds] Sn.m=0 or 1 [cmds]

                 Read: AT [cmds] Sn.m=? [cmds]

  Description:   Sets/clears or reads bit m of register n.

                        STATUS REGISTER HEXADECIMAL

  Type:                Configuration

  Format:              Write: AT [cmds] Sn^=hh [cmds]

                       Read: AT [cmds] Sn?^ [cmds]

  Description:         Sets register n to hexadecimal number hh or
                       displays register n in hexadecimal.

                          STORE TELEPHONE NUMBER

  Type:              Configuration

  Format:            AT [cmds] &Z<#>

  Description:       Writes the indicated telephone number into
                     non-volatile memory location 1.

                          STORE TELEPHONE NUMBER

  Type:               Configuration

  Format:             AT [cmds] *CNn,<#>

  Description:        Writes the indicated telephone number into
                      non-volatile memory at location n.

                              TALK/DATA MODE

  Type:          Immediate

  Format:        AT [cmds] *DAn [cmds]

  Description:   Selects talk or data mode.

    Command                              Function

      *DA0       Talk mode enabled.

      *DA1       Data mode enabled.

                                TEST MODES

  Format              AT [cmds] S34=n [cmds]

  Default:            0

  Range:              0 - 15

  Description:        Initiates and controls loopback test options.

   Bit      Value                          Function

    0             0   End bidirectional local analog loopback test.

                 1    Begin bidirectional local analog loopback test.

    1             0   End bidirectional local digital loopback test.

                 1    Begin bidirectional local digital loopback test.

    2             0   Pin 18 has no function.

                 1    Pin 18 going high causes the modem to perform local
                      analog loopback test.

    3             0   Pin 21 has no function.

                 1    Pin 21 going high causes the modem to perform
                      remote digital loopback test.

                     TRANSMISSION LEVEL - LEASED LINE

  Type:                  Configuration

  Format:                AT [cmds] %Zn [cmds]

  Description:           Sets the signal level for transmission over
                         leased lines.

        Command                              Function

          %Z0            Permissive transmission level (level fixed at
                         -9dBm.)

          %Z1            Programmable transmission level (level
                         controlled by exterior resistor, or -12dBm if
                         absent.

                    TRANSMISSION LEVEL - SWITCHED LINE

  Type:                  Configuration

  Format:                AT [cmds] *TDn [cmds]

  Default:               9

  Range:                 9-30

  Unit:                  -1 dBm

  Description:           Sets the transmitted signal level when the modem
                         is connected to a switched phone line.

                              V.25bis OPTIONS

  Format               AT [cmds] S30=n [cmds]

  Default:             0

  Range:               0 - 230

  Description:         Controls V.25bis character set, VAL response,
                       NRZ/NRZI, and communications mode.

    Bit      Value                          Function

     0            0    Not used.

     1             0   Use ASCII character set.

                  1    Use EBCDIC character set.

     2             0   VAL response enabled.

                  1    VAL response disabled.

   4, 3          00    Not used.

     5             0   Use NRZ mode.

                  1    Use NRZI mode.

   7, 6           00   V.25bis command set disabled.

                  01   V.25bis bisynchronous command, synchronous connect
                       mode.
                  10
                       V.25bis SDLC command, synchronous connect mode.
                 11
                       V.25bis asynchronous command, synchronous connect
                       mode.

                          V.32 HANDSHAKE OPTIONS

  Type:            Configuration

  Format:          AT [cmds] *FTn [cmds]

  Description:     Shortens V.32 and V.32bis handshake time.

     Command                              Function

       *FT0        Normal handshake sequence.

       *FT1        Training time is shortened by 2 seconds in V.32 and
                   V.32bis modes.

                               V.34 OPTIONS

  Format:           AT [cmds] S95=n [cmds]

  Default:          241

  Range:            0 - 241

  Description:      Controls non-linear coding, pre-emphasis, shaping,
                    and pre-coding.

   Bit     Value                          Function

    0           0   V.8 answer disabled for modulations below V.34.

               1    V.8 answer enabled for modulations below V.34.

  3 - 1      000    Not used.

    4           0   Non-linear coding disabled.

               1    Non-linear coding enabled.

    5           0   Pre-emphasis disabled.

               1    Pre-emphasis enabled.

    6           0   Constellation shaping disabled.

               1    Constellation shaping enabled.

    7           0   Pre-coding disabled.

               1    Pre-coding enabled.

                               V.34 OPTIONS

  Format:          AT [cmds] S96=n [cmds]

  Default:         160

  Range:           0 - 160

  Description:     Controls TX level deviation and asymmetric bit rates.

   Bit    Value                           Function

  4 - 0   00000    Not used.

    5          0   Asymmetric bit rates disabled.

              1    Asymmetric bit rates enabled.

    6         0    Not used.

    7          0   TX level deviation disabled.

              1    TX level deviation enabled.

                         V.34 RETRAIN SENSITIVITY

  Type:                  Configuration

  Format:                AT [cmds] *THn [cmds]

  Description:           Sets how poor line conditions must be before the
                         modem will initiate a retrain when in V.34 mode.

        Command                              Function

          *TH0           Modem will initiate retrain when the Bit Error
                         Rate exceeds 10-6.

          *TH1           Modem will initiate retrain when the Bit Error
                         Rate exceeds 10-4.

          *TH2           Modem will initiate retrain when the Bit Error
                         Rate exceeds 10-2.

                             V.34 SPLIT-SPEED

  Type:          Configuration

  Format:        AT [cmds] *ASn [cmds]

  Description:   Controls V.34 - split-speed mode.

    Command                              Function

      *AS0       V.34 split-speed disabled.

      *AS1       V.34 split-speed enabled.

