
MAXTECH

GM144E (REV.1)

Card Type                    Fax, Modem (synchronous/asynchronous)
Chip Set                     Unidentified
Maximum Data Rate            14.4Kbps
Maximum Fax Rate             14.4Kbps
Data Bus                     External
Fax Class                    Class I & II
Data Modulation Protocol     Bell 103/212A

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

  Line in                        CN1       DC power                 CN4

  Line out                       CN2       Power switch             SW1

  RS-232/422                     CN3

                        USER CONFIGURABLE SETTINGS

                  Setting                     Label         Position

  SMART mode                                   JP1      Pins 2 & 3 closed

  DUMB mode                                    JP1      Pins 1 & 2 closed

                             DIAGNOSTIC LED(S)

   LED       Color      Status                   Condition

   TST        Red         On                  Normal operation

   TST        Red        Flash     Modem has detected and corrected error

    HS        Red         On          Modem is operating at 4800bps or
                                                   faster

    HS        Red         Off         Modem is operating at slower than
                                                  4800bps

    AA        Red         On                Auto-answer enabled

    AA        Red         Off               Auto-answer disabled

    AA        Red       Blinking              Phone is ringing

    CD        Red         On              Carrier signal detected

    CD        Red         Off           Carrier signal not detected

    OH        Red         On                 Modem is off-hook

    OH        Red         Off                 Modem is on-hook

    RD        Red         On              Modem is receiving data

    RD        Red         Off           Modem is not receiving data

    SD        Red         On             Modem is transmitting data

    SD        Red         Off          Modem is not transmitting data

    TR        Red         On                 DTR signal is high

    TR        Red         Off                DTR signal is low

    MR        Red         On                    Power is on

    MR        Red         Off                   Power is off

                         Proprietary AT Command Set

                         ACCEPT MNP RELIABLE MODE

  Type:          Immediate

  Format:        AT [cmds] \U [cmds]

  Description:   Accept remote modems request for MNP reliable mode

                     AUTO-RELIABLE FALLBACK CHARACTER

  Type:                  Configuration

  Format:                AT [cmds] %An [cmds]

  Default:               0

  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

          \C0            Data is discarded

          \C1            Data is buffered

          \C2            Data is discarded; modem returns to normal mode
                         on receiving auto-reliable fallback character.

                               AUTO-RETRAIN

  Type:          Configuration

  Format:        AT [cmds] %En [cmds]

  Description:   Controls auto-retrain mode

    Command                              Function

      %E0        Auto-retrain disabled

      %E1        Auto-retrain enabled

                          BIT-MAPPED REGISTER S14

  Format:               AT [cmds] S14=n [cmds]

  Default:              Unidentified

  Range:                0-255

  Unit:                 Bit-mapped

  Description:          Controls echo, result codes and display, dumb
                        mode, dial mode, stored profile, and
                        answer/originate mode.

   Bit        Value                         Function

    0                0  Command echo disabled

                    1   Command echo enabled

   2, 1             00  Result codes enabled

                    01  Result codes disabled

                   10   Result codes enabled in originate mode only

    3                0  Display result codes in numeric format

                    1   Display result codes in verbose format

    4                0  Dumb mode disabled

                    1   Dumb mode enabled

    5                0  Tone dial enabled

                    1   Pulse dial enabled

    6                0  stored profile 0

                    1   stored profile 1

    7                0  Answer mode enabled

                    1   Originate mode enabled

                          BIT-MAPPED REGISTER S16

  Type:                  Register

  Format:                AT [cmds] S16=n [cmds]

  Default:               23

  Range:                 0-55

  Unit:                  Bit-mapped

  Description:           Grants/denies remote digital loopback; controls
                         clear down signal, auto-retrain, and extended
                         result codes.

   Bit        Value                          Function

    0                0   Remote digital loopback denied

                    1    Remote digital loopback allowed

    1                0   Disable clear down signal

                    1    Enable clear down signal

    2                0   Auto-retrain disabled

                    1    Auto-retrain enabled

    3               0    Not used

   5, 4             00   Extended result codes disabled /DCE speed only

                    01   Extended result codes/DCE speed enabled

                    10   Extended result codes disabled /DTE speed only

                   11    Extended result codes/DTE speed enabled

                          BIT-MAPPED REGISTER S21

  Format                 AT [cmds] S21=n [cmds]

  Default:               Unidentified

  Range:                 0-255

  Unit:                  Bit-mapped

  Description:           Selects originate-only mode, line mode,
                         CTS/DCD/DSR signals, low DTR action, and the
                         long space disconnect function.

   Bit        Value                          Function

    0                0   Disable originate-only mode

                    1    Enable originate-only mode

    1                0   Switched line

                    1    Leased-line

    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=n [cmds]

  Default:               118

  Range:                 0-255

  Unit:                  Bit-mapped

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

    Bit       Value                          Function

   1, 0             00   Low level volume

                    01   Low level 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 - 4           000   Basic result codes only enabled

                   100   Basic and connection speed result codes enabled

                   101   Basic and connection speed result codes and
                         dial-tone detection enabled
                   110
                         All result codes except dial-tone detection
                  111    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=n [cmds]

  Default:         Unidentified

  Range:           0-186

  Unit:            Bit-mapped

  Description:     Controls DTE rate and parity, and sets guard tone.

   Bit    Value                           Function

  3 - 0     0000   Sets serial port speed to 300bps

            0010   Sets serial port speed to 1200bps

            0011   Sets serial port speed to 2400bps

            0100   Sets serial port speed to 4800bps

            0110   Sets serial port speed to 9600bps

            1000   Sets serial port speed to 14400bps

            1001   Sets serial port speed to 19200bps

            1010   Sets serial port speed to 28800bps

            1011   Sets serial port speed to 38400bps

            1100   Sets serial port speed to 57600bps

           1101    Sets serial port speed to 115200bps

  5, 4        00   Parity even

              01   Space Parity

              10   Parity odd

             11    Mark or 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=n [cmds]

  Default:            Unidentified

  Range:              0-235

  Unit:               Bit-mapped

  Description:        Selects synchronous/asynchronous mode, clock
                      source, and sets DCE speed.

   Bit      Value                          Function

  1, 0           00   Asynchronous mode, serial port speed follows
                      connect speed
                 01
                      Asynchronous off-line command mode and synchronous
                 10   connect mode

                11    Synchronous connect mode

                      Asynchronous off-line command mode on low DTR,
                      synchronous connect mode on high DTR

  3, 2           00   Local modem generates transmit clock source

                 01   Local DTE generates transmit clock source

                10    Remote DCE/DTE generates transmit clock source

  7 - 4        0000   Sets DCE speed to 300bps

               0010   Sets DCE speed to 1200bps

               0011   Sets DCE speed to 2400bps

               0100   Sets DCE speed to 4800bps

               0101   Sets DCE speed to 7200bps

               0110   Sets DCE speed to 9600bps

               0111   Sets DCE speed to 12000bps

               1000   Sets DCE speed to 14400bps

               1001   Sets DCE speed to 16800bps

               1010   Sets DCE speed to 19200bps

               1011   Sets DCE speed to 21600bps

               1100   Sets DCE speed to 24000bps

               1101   Sets DCE speed to 26400bps

               1110   Sets DCE speed to 28800bps

                          BIT-MAPPED REGISTER S28

  Format                AT [cmds] S28=n [cmds]

  Default:              16

  Range:                0-149

  Unit:                 Bit-mapped

  Description:          Controls power-on auto-connect, security
                        call-back, auto-rate negotiation ,and DCE
                        protocol.

    Bit       Value                         Function

     0               0  Disabled power-on auto-connect

                    1   Enabled power-on auto-connect

   2, 1             00  Disabled security call-back

                    01  Password security check only

                   10   Enabled security call-back

     3               0  Disable auto-rate negotiation

                    1   Enable auto-rate negotiation

   7 - 4          0000  ITU-T mode

                  0001  Bell mode

                  0010  Auto-scan mode

                  0011  V.23 mode

                  0100  Set Connection speed to 300bps

                  0101  Set Connection speed to 1200bps

                  0110  Set Connection speed to 2400bps

                  0111  Set Connection speed to 4800bps

                  1000  Set Connection speed to 9600bps

                  1001  Set Connection speed to 14400bps

                  1010  Set Connection speed to 16800bps

                  1011  Set Connection speed to 19200bps

                  1100  Set Connection speed to 21600bps

                  1101  Set Connection speed to 24000bps

                  1110  Set Connection speed to 26400bps

                 1111   Set Connection speed to 28800bps

                                BREAK SEND

  Type:          Configuration

  Format:        AT [cmds] \Bn [cmds]

  Default:       3

  Range:         1-9

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

     \K0        No break sent to   On-line        Break sent     Buffers
                remote modem       command mode   to remote      cleared,
                                   enabled,       modem and      break sent
                                   break sent     buffered       to DTE
                                   to remote      cleared
                                   modem

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

     \K2        No break sent to   On-line        Send break     Break sent
                remote modem       command mode   to remote      immediately
                                   enabled,       modem          to DTE
                                   break sent     immediately
                                   to remote
                                   modem

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

     \K4        No break sent to   On-line        Send break     Break sent
                remote modem       command mode   with           with
                                   enabled,       transmitted    received
                                   break sent     data           data to the
                                   to remote                     DTE
                                   modem

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

                             CLEAR DOWN SIGNAL

  Type:          Configuration

  Format:        AT [cmds] %Dn [cmds]

  Description:   Controls clear down signal

    Command                              Function

      %D0         Disable clear down signal

      %D1         Enable clear down signal

                                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:   Controls the type of connection the modem will operate
                 in

    Command                              Function

      \N0        Normal mode enabled

      \N1        Direct mode enabled

      \N2        MNP mode enabled

      \N3        MNP reliable mode enabled

      \N4        V.42 reliable mode enabled

      \N5        Reliable mode enabled

      \N6        Auto-reliable mode enabled

                       CONVERT TO MNP RELIABLE MODE

  Type:          Immediate

  Format:        AT [cmds] \Y [cmds]

  Description:   Converts to MNP reliable mode from normal or direct mode

                               COUNTRY CODE

  Type:          Configuration

  Format:        AT [cmds] *NCn [cmds]

  Description:   Select country code to be used

    Command                              Function

       0          Austria

       1          Belgium

       2          Denmark

       3          Finland

       4          France

       5          Germany

       6          Ireland

       7          Italy

       8          Luxembourg

       9          Netherlands

       10         Norway

       11         Portugal

       12         Spain

       13         Sweden

       14         Switzerland

       15         United Kingdom

       16         New Zealand

       17         Australia

                             DISPLAY PASSWORD

  Type:          Configuration

  Format:        AT [cmds] \P=? [cmds]

  Description:   Displays a password from non-volatile memory

  Note: NO PASSWORD SAVED is returned if no password was saved.

                                 ECHO DATA

  Type:          Configuration

  Format:        AT [cmds] \En [cmds]

  Description:   Enables modem to echo received data

    Command                              Function

      \E0        Data echo disabled

      \E1        Data echo enabled

                           EXTENDED RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] \Vn [cmds]

  Description:   Selects extended result codes

    Command                              Function

      \V0        Extended result codes/DCE speed disabled

      \V1        Extended result codes/DCE speed enabled

      \V2        Extended result codes/DTE speed disabled

      \V3        Extended result codes/DTE speed 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        Bi-directional XON/XOFF flow control enabled

      \Q2        CTS flow control by DCE enabled

      \Q3        Bi-directional RTS/CTS flow control enabled

      \Q4        Unidirectional XON/XOFF flow control by DCE 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.

                        INITIATE MNP RELIABLE MODE

  Type:          Immediate

  Format:        AT [cmds] \O [cmds]

  Description:   Initiates MNP reliable mode from normal or direct mode

                             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

                    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

                                 PASSWORD

  Type:          Configuration

  Format:        AT [cmds] \P=n [cmds]

  Description:   Stores a password in non-volatile memory

  Note: Maximum of 7 characters and password is not case sensitive.

                           POWER-ON AUTO-CONNECT

  Type:          Configuration

  Format:        AT [cmds] %Pn [cmds]

  Description:   Controls power-on auto-connect

    Command                              Function

      %P0         Disabled power-on auto-connect

      %P1         Enabled power-on auto-connect

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested

    Command                              Function

       I0        Reports product identification code

       I1        Reports ROM checksum

       I2        Internal memory test

       I3        Reports V.42bis ID

       I4        Reports internal ID

      I90        Report country code

                            SECURITY CALL-BACK

  Type:          Configuration

  Format:        AT [cmds] %Sn [cmds]

  Description:   Controls security call-back

    Command                              Function

      %S0         Disabled security call-back

      %S1         Enabled security call-back

      %S2         Password security check only

                           SWITCH TO NORMAL MODE

  Type:          Immediate

  Format:        AT [cmds] \Z [cmds]

  Description:   Switches to normal mode from MNP mode

                           TRANSMISSION LEVEL

  Type          Configuration

  Format        AT [cmds] %Ln [cmds]

  Default       12

  Range         0-15

  Unit          -1 dBm

  Description   Sets the signal level for transmission

                           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

