
CARDINAL TECHNOLOGIES,INC.

2400BPS EXTERNAL MNP MODEM

Card Type                    Modem (synchronous/asynchronous)
Chip Set                     Unidentified
Maximum Data Rate            2400bps
Data Bus                     External
Data Modulation Protocol     Bell 103/212A

                             ITU-T V.21, V.22, V.22bis
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

                             DIAGNOSTIC LED(S)

   LED       Color      Status                   Condition

    HS        Red         On          Modem is operating at 1200bps or
                                                   faster

    HS        Red         Off         Modem is operating at slower than
                                                  1200bps

    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

    MR        Red       Blinking             Modem in test mode

                         Proprietary AT Command Set

                           ACCEPT RELIABLE MODE

  Type:          Immediate

  Format:        AT [cmds] \U [cmds]

  Description:   Accept remote modems request for reliable mode

                     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

          \C0            Data is discarded

          \C1            Data is buffered

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

      BIT MAPPED REGISTERS

    Register        Default

      S14        Unidentified

      S21        Unidentified

      S22        Unidentified

      S23        Unidentified

      S27        Unidentified

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

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

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

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

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

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

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

                                COMPRESSION

  Type:          Configuration

  Format:        AT [cmds] %Cn [cmds]

  Description:   Selects data compression

    Command                              Function

      %C0        Data compression disabled

      %C1        MNP5 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 reliable mode enabled

      \N3        Auto-reliable mode enabled

                         CONVERT TO RELIABLE MODE

  Type:          Immediate

  Format:        AT [cmds] \Y [cmds]

  Description:   Converts to reliable mode from normal or direct mode

                                   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.

        Modifier                             Function

           P             Pulse dialing enabled

           R             Answer mode enabled, originate mode disabled
                         following handshake initiation

           Sn            Dial stored telephone number n

           T             Tone dialing enabled

           W             Dialing resumed following dial tone detection

           ,             Dialing paused for amount of time specified in
                         S8 register

           !             Modem commanded to go off-hook for specified
                         time before returning on-hook

           @             Wait for quiet answer

           ;             Modem returned to command state after dialing

                           DISPLAY CONFIGURATION

  Type:          Immediate

  Format:        AT [cmds] \S [cmds]

  Description:   Displays current modem settings

                           EXTENDED RESULT CODES

  Type:          Configuration

  Format:        AT [cmds] \Vn [cmds]

  Description:   Select standard or extended result codes

    Command                              Function

      \V0        Standard result codes enabled

      \V1        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 by DCE 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. \T0
                         will disable timer.

                          INITIATE RELIABLE MODE

  Type:          Immediate

  Format:        AT [cmds] \O [cmds]

  Description:   Initiates 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

                          MNP - STREAM/BLOCK MODE

  Type:          Configuration

  Format:        AT [cmds] \Ln [cmds]

  Description:   Selects the transfer mode for MNP link

    Command                              Function

      \L0        Stream mode for MNP enabled

      \L1        Block mode for MNP enabled

                            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        34/66ms at 10pps (British)

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested

    Command                              Function

       I0        Reports modem code

       I1        Reports ROM checksum

       I2        Tests and reports ROM checksum

       I3        Reports version information

                          STORE TELEPHONE NUMBER

  Type:                  Configuration

  Format:                AT [cmds] &Zn=(phone # & modifiers)

  Description:           Writes selected telephone numbers into the
                         non-volatile memory at location n

  Note:                  The characters described in the D command are
                         valid for use in the &Z command; telephone
                         numbers and modifiers can include up to 30
                         characters.

                           SWITCH TO NORMAL MODE

  Type:          Immediate

  Format:        AT [cmds] \Z [cmds]

  Description:   Switches to normal mode from MNP mode

                                TEST MODES

  Type:              Register

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

  Default:           0

  Range:             0-125

  Unit:              Bit-mapped

  Description:       Controls 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

                           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

