
LINKSYS

PCMCIA 33.6 LANMODEM CARD

Card Type                    Modem (asynchronous)
Chip Set                     AT&T
Maximum Modem Rate           33.6Kbps
Maximum Fax Rate             14.4Kbps
Data Modulation Protocol     Bell 103/212A

                             ITU-T V.21, V.22, V.23, V.34
Fax Modulation Protocol      V.17
Error Correction/Compression MNP5, V.42, V.42bis
Fax Class                    Class I
NIC Type                     Ethernet
Boot ROM                     Not available
Network Transfer Rate        10Mbps
Topology                     Star
Wiring Type                  RJ-45 Unshielded twisted pair
Data Bus                     PCMCIA Type II

                                                                      54804

                       SUPPORTED COMMAND SET

                         Basic AT Commands

  AT, A/

  A, E, H, M, O, P, Q, T, V, W, X, Z

  &C, &F, &G, &Q, &R, &T, &W, &X, &Y, &Z

                       Extended AT Commands

  \A, \B, \C, \G, \J, \T, \V, \X

  %A

                            S Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S18, S25, S26

                         Special Commands

  -J

  Note: See MHI Help File for full command documentation.

                         Proprietary AT Command Set

                          COMMUNICATION PROTOCOLS

  Type:                  Configuration

  Format:                AT [cmds] Bn [cmds]

  Description:           Selects the communication protocol for data
                         calls

            Note: The B command allows the simultaneous selection of more
            than one suffix, enabling multiple protocols.

        Command                              Protocol

          B0             ITU-T V.22 at 1200bps or ITU-T V.21 at 300bps

          B1             Bell 212A at 1200bps or Bell 103 at 300bps

          B2             V.23 selection, in originate mode and receive at
                         1200bps, transmit at 75bps; in answer mode,
                         receive at 75bps and transmit at 1200bps.

          B3             V.23 selection, in originate mode receive at
                         75bps and transmit at 1200bps; in answer mode,
                         receive at 1200bps and transmit at 75bps









                                   DIAL

  Type:                  Immediate

  Format:                AT [cmds] D<#> [cmds]

  Description:           Dials telephone number according to any
                         modifiers included in the string

  Note:                  Any combination of modifiers can be used to
                         produce the desired dial functions in sequence.

        Command                              Function

          DP             Pulse dialing enabled

          DR             Answer mode enabled; originate mode disabled
                         following handshake initiation.

         DS=n            Dial stored telephone number n

          DT             Tone dialing enabled/Pulse dialing disabled

          DW             Dialing resumed following dial tone detection

          D,             Dialing paused for amount of time specified in
                         S8 register

          D!             Flash function initiated. Modem commanded to go
                         off-hook for specified time before returning
                         on-hook.

          D@             Wait for Quite Answer function enabled. Modem
                         waits until a "quiet answer," a ring-back signal
                         followed by silence up to the time specified in
                         S7, is received prior to executing the rest of
                         the dial string.

          D;             Modem returned to idle state after dialing. The
                         semicolon can only be placed at the end of the
                         dial command.

                            AUTO-MODE DETECTION

  Type:                  Configuration

  Format:                AT [cmds] Nn [cmds]

  Description:           Selects various options for the automatic
                         detection and negotiation of protocols during
                         the handshake process if the modem is
                         communicating with a remote modem of dissimilar
                         speed.

        Command                              Function

          N0             Handshake only at the communication rate
                         specified by S37 with fallback disabled

          N1             Start handshake at the communication standard
                         specified by S37. Fallback enabled

                            V.32 - AUTO-RETRAIN

  Type:            Configuration

  Format:          AT [cmds] &Bn [cmds]

  Description:     Controls auto-retrain function if poor line quality is
                   detected

     Command                             Function

       &B0         Auto-retrain disabled modem hangs-up

       &B1         Auto-retrain enabled if line quality is poor

       &B2         Tolerate any condition

















                         DATA TERMINAL READY (DTR)

  Type:                  Configuration

  Format:                AT [cmds] &Dn [cmds]

  Description:           Selects modem response to DTR

            Note: The action each variant of &D causes depends on the
            setting of &Q

        Command                              Function

          &D0            Modem does not respond to DTR

          &D1            Modem goes to command mode after DTR goes is off

          &D2            Modem goes to command mode and disconnects
                         (hangs up) after DTR goes off; Auto-Answer is
                         disabled.

          &D3            Modem is initialized after DTR goes off

                               FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] &Kn [cmds]

  Description:   Enables flow control options

    Command                              Function

      &K0        Flow control disabled

      &K1        Reserved

      &K2        Reserved

      &K3        RTS/CTS flow control enabled

      &K4        XON/XOFF flow control enabled

      &K5        Error

                            COMMUNICATIONS MODE

  Type:                Configuration

  Format:              AT [cmds] &Mn [cmds]

  Description:         Selects communications mode

       Command                                Mode

         &M0           Asynchronous mode

         &M1           Synchronous connect mode and asynchronous off-line
                       command mode.

         &M2           Synchronous connect mode and asynchronous off-line
                       command mode and set DTR high.

         &M3           Synchronous connect mode

         &M4           Hayes AutoSync mode

                            PULSE DIALING RATIO

  Type:          Configuration

  Format:        AT [cmds] &Pn [cmds]

  Description:   Selects pulse dial make/break ratio

    Command                              Function

      &P0        39/61ms at 10pps (North America)

      &P1        33/67ms at 10pps (Europe)









                           DATA SET READY (DSR)

  Type:          Configuration

  Format:        AT [cmds] &Sn [cmds]

  Description:   Selects DSR options

    Command                              Function

      &S0        DSR forced high

      &S1        DSR high only while modem is handshaking or connected

                          CONFIGURATION PROFILES

  Type:          Immediate

  Format:        AT [cmds] &V [cmds]

  Description:   Displays active and stored configuration profiles

    Command                              Function

      &V0        View active profile 0

      &V1        View active profile 1

                            Extended AT Commands

                             DATA COMPRESSION

  Type:          Configuration

  Format:        AT [cmds] %Cn [cmds]

  Description:   This command controls the MNP5.

    Command                              Function

      %C0        No compression

      %C1        MNP class 5 compression

                             DTE FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] \Qn [cmds]

  Description:   This command selects the flow control method.

    Command                              Function

      \Q0        Disables flow control

      \Q1        XON/XOFF software flow control

      \Q2        CTS flow control to DTE

      \Q3        RTS/CTS hardware flow control

                               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        Reliable mode enabled

      \N3        LAPM, MNP or normal mode

      \N4        LAPM of MNP mode

                            S(status) -REGISTERS

                             INACTIVITY TIMER

  Type:                  Register

  Format                 AT [cmds] S30=n [cmds]

  Default:               0

  Range:                 0-90

  Unit:                  10 seconds

  Description:           Maximum duration of DTE and DCE inactivity
                         allowed prior to initiating hang-up process.

            Note: S30=0 disables the timer and allows indefinite
            inactivity.

                              DCE LINE SPEED

  Type:                Register

  Format               AT [cmds] S37=n [cmds]

  Description:         Sets the maximum allowable data exchange rate
                       attempted during handshake process.

       Command                              Function

        S37=0          Speed of last connection

        S37=3          300bps

        S37=5          1200bps

        S37=6          2400bps

        S37=7          4800bps

        S37=8          7200bps

        S37=9          9600bps

       S37=10          12.0Kbps

       S37=11          14.4Kbps

       S37=12          16.8Kbps

       S37=13          19.2Kbps

       S37=14          21.6Kbps

       S37=15          24.0Kbps

       S37=16          26.4Kbps

       S37=17          28.8Kbps































                              DTE RATE STATUS

  Type:          Register

  Format         AT [cmds] S62=n [cmds]

  Default:       16

  Unit:          1 second

  Description:   Displays the DTE rate status

     Value                               Meaning

       0         300bps

       1         600bps

       2         1200bps

       3         2400bps

       4         4800bps

       5         7200bps

       6         9600bps

       7         12000bps

       8         14400bps

       9         16800bps

       10        19200bps

       11        21600bps

       12        24000bps

       13        26400bps

       14        28800bps

       15        38400bps

       16        57600bps

       17        115200bps















































                            DTE SPEED SELECTION

  Type:          Register

  Format         AT [cmds] S72n [cmds]

  Description:   Selects the DTE speed during data transfer

     Value                               Meaning

     S72=0       last autobaud speed

     S72=1       300bps

     S72=2       600bps

     S72=3       1200bps

     S72=4       2400bps

     S72=5       4800bps

     S72=6       7200bps

     S72=7       9600bps

     S72=8       12000bps

     S72=9       14400bps

     S72=10      16800bps

     S72=11      19200bps

     S72=12      21600bps

     S72=13      24000bps

     S72=14      26400bps

     S72=15      28800bps

     S72=16      38400bps

     S72=17      57600bps

     S72=18      115200bps













