
IBM CORPORATION

14.4KBPS DATA/FAX MODEM INTERNAL ISA

Card Type                    Fax, Modem (asynchronous)
Chip Set                     Unidentified
Maximum Data Rate            14.4Kbps
Maximum Fax Rate             14.4Kbps
Data Bus                     8-bit ISA
Fax Class                    Class I & II
Data Modulation Protocol     Bell 103/212A

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

[Image]

                                CONNECTIONS

         Function            Label            Function             Label

  Line out                        CN1       Line in                 CN2

                           SERIAL PORT ADDRESS

    Setting        JP1/A          JP1/B          JP1/C          JP1/D

  COM1 (3F8h)      Closed          Open          Open           Open

  COM2 (2F8h)       Open          Closed         Open           Open

  COM3 (3E8h)       Open           Open         Closed          Open

  COM4 (2E8h)       Open           Open          Open          Closed

                 INTERRUPT SELECTION

  Setting    JP1/E      JP1/F      JP1/G      JP1/H

     3       Closed      Open      Open       Open

     4        Open      Closed     Open       Open

     5        Open       Open     Closed      Open

     7        Open       Open      Open      Closed

                         Proprietary AT Command Set

                 AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD

  Type:          Configuration

  Format:        AT [cmds] %En [cmds]

  Description:   Controls auto-retrain mode and fallback/fall-forward

    Command                              Function

      %E0        Auto-retrain disabled

      %E1        Auto-retrain enabled

      %E2        Auto-fallback/fall-forward enabled

                          BIT-MAPPED REGISTER S14

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

  Default:            138

  Range:              0-174

  Unit:               Bit-mapped

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

   Bit       Value                         Function

    0             0   Not used

    1              0  Command echo disabled

                  1   Command echo enabled

    2              0  Result codes enabled

                  1   Result codes disabled

    3              0  Display result codes in numeric format

                  1   Display result codes in verbose format

    4             0   Not used

    5              0  Tone dial enabled

                  1   Pulse dial enabled

    6             0   Not used

    7              0  Answer mode enabled

                  1   Originate mode enabled

                          BIT-MAPPED REGISTER S21

  Format                 AT [cmds] S21=n [cmds]

  Default:               52

  Range:                 0-253

  Unit:                  Bit-mapped

  Description:           Selects jack type, CTS/DCD/DSR signals, low DTR
                         action, and the long space disconnect function.

    Bit       Value                          Function

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

                    1    Selects RJ-12 or RJ-13 jack

     1              0    Not used

     2               0   CTS follows RTS

                    1    CTS forced high

   4, 3             00   DTR signal ignored

                    01   Modem goes to command mode on low DTR

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

     5               0   DCD forced high

                    1    DCD normal

     6               0   DSR forced high

                    1    DSR normal

     7               0   Long space disconnect function disabled

                    1    Long space disconnect function enabled

                          BIT-MAPPED REGISTER S22

  Format            AT [cmds] S22=n [cmds]

  Default:          117

  Range:            0-127

  Unit:             Bit-mapped

  Description:      Controls speaker volume and controls, and limits
                    results codes.

   Bit     Value                          Function

  1, 0         00   Off 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 dialtone
                    detection enabled
              110
                    All result codes except dialtone detection enabled
             111
                    All result codes enabled

                          BIT-MAPPED REGISTER S23

  Format                AT [cmds] S23=n [cmds]

  Default:              Unidentified

  Range:                0-189

  Unit:                 Bit-mapped

  Description:          Grants/denies remote digital loopback, controls
                        DTE rate and parity, and sets guard tone.

    Bit       Value                         Function

     0              0   Remote digital loopback denied

                   1    Remote digital loopback allowed

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

                  001   Sets serial port speed to 600bps

                  010   Sets serial port speed to 1200bps

                  011   Sets serial port speed to 2400bps

                  100   Sets serial port speed to 4800bps

                  101   Sets serial port speed to 9600bps

                 110    Sets serial port speed to 19200bps

   5, 4            00   Parity even

                   01   Not used

                   10   Parity odd

                  11    No Parity

   7, 6            00   Guard tone disabled

                   01   Guard tone disabled

                  10    Guard tone 1800Hz enabled

                          BIT-MAPPED REGISTER S27

  Format               AT [cmds] S27=n [cmds]

  Default:             64

  Range:               0-116

  Unit:                Bit-mapped

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

    Bit      Value                          Function

  3, 1, 0       000    Not used

     2             0   Switched line

                  1    Leased line

   5, 4           00   Local modem generates transmit clock source

                  01   Local DTE generates transmit clock source

                 10    Remote DCE/DTE generates transmit clock source

     6             0   ITU/T mode

                  1    Bell mode

                          BIT-MAPPED REGISTER S28

  Format               AT [cmds] S28=n [cmds]

  Default:             0

  Range:               0-31

  Unit:                Bit-mapped

  Description:         Controls V.23 split speed, transmit/receive speed,
                       half duplex, and pulse dialing.

   Bit       Value                          Function

    0              0   V.23 split speed operation disabled

                  1    V.23 split speed operation enabled

    1              0   75bps transmit, 1200bps receive enabled

                  1    1200bps transmit, 75bps receive enabled

    2              0   V.23 half-duplex disabled

                  1    V.23 half-duplex enabled

   4, 3           00   39ms make/61ms break at 10pps

                  01   33ms make/67ms break at 10pps

                  10   39ms make/61ms break at 20pps

                 11    33ms make/67ms break at 20pps

                          BIT-MAPPED REGISTER S31

  Format:                    AT [cmds] S31=n [cmds]

  Default:                   2

  Range:                     0-10

  Description:               Select automode and extended result code
                             format.

        Bit           Value                     Function

         0                  0   Not used

         1                   0  Auto-mode detection disabled

                            1   In originate mode, handshake begins at
                                line speed designated by the S37
                                register. Modem can shift to a slower
                                speed if necessary.

                                In answer mode, handshake attempted with
                                the following protocols in order -
                                V.32bis, V.32, V.22bis, V.22 or Bell 212,
                                V.21, and Bell 103

       3, 2                 00  Enables CONNECT result codes to report
                                DTE speed
                            01
                                Full reporting of CONNECT result codes
                           10
                                Enables CONNECT result codes to report
                                DCE speed

                          BIT-MAPPED REGISTER S40

  Format                 AT [cmds] S40=n [cmds]

  Default:               105

  Range:                 0-239

  Unit:                  Bit-mapped

  Description:           Controls power level and break handling, selects
                         MNP extended services, link negotiation, and
                         block size.

    Bit       Value                          Function

     0               0   MNP disabled

                    1    MNP enabled

     1               0   Power level adjustment enabled

                    1    Power level adjustment disabled

     2               0   Link will be negotiated at highest possible
                         speed
                    1
                         Link will be negotiated at 1200bps

  5, 4, 3          000   \K0

                   001   \K1

                   010   \K2

                   011   \K3

                   100   \K4

                  101    \K5

   7, 6             00   MNP block size is 64 characters

                    01   MNP block size is 128 characters

                    10   MNP block size is 192 characters

                   11    MNP block size is 256 characters

                          BIT-MAPPED REGISTER S41

  Format           AT [cmds] S41=n [cmds]

  Default:         7

  Range:           0-31

  Unit:            Bit-mapped

  Description:     Selects compression, auto-retrain, flow control, and
                   MNP mode.

   Bit    Value                           Function

  1 - 0       00   Data compression disabled

              01   MNP5 enabled

              10   V.42bis enabled

             11    MNP5 and V.42bis enabled

    2          0   Auto-retrain disabled

              1    Auto-retrain enabled

    3          0   Flow control disabled

              1    Flow control enabled

    4          0   Stream mode for MNP

              1    Block mode for MNP

                                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 DTE      Break received
                   while in Normal    while in Direct   from remote modem
                    or MNP mode            mode

       \K0        On-line command    On-line command    Buffers cleared,
                  mode enabled,      mode enabled,      break sent to DTE
                  send no break      send no break to
                  to remote modem    remote modem

       \K1        Break sent to      On-line command    Buffers cleared,
                  remote modem       mode enabled,      break sent to DTE
                  and buffers        send no break to
                  cleared            remote modem

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

       \K3        Send break to      On-line command    Break sent
                  remote modem       mode enabled,      immediately to
                  immediately        send no break to   DTE
                                     remote modem

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

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

                                COMPRESSION

  Type:          Configuration

  Format:        AT [cmds] %Cn [cmds]

  Description:   Selects data compression

    Command                              Function

      %C0        Data compression disabled

      %C1        Not used

      %C2        V.42bis enabled

      %C3        MNP5 and V.42bis 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        Reliable mode enabled

      \N3        Auto-reliable mode enabled

      \N4        V.42 reliable mode enabled

      \N5        MNP reliable mode enabled

                                   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

           L             Re-dial last number

           P             Pulse dialing enabled

          S=n            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

           !             Flash function initiated

           @             Wait for quiet answer enabled

           ;             Modem returned to command state after dialing

           ^             Calling tone disabled

                               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:          Register

  Format         AT [cmds] S39? [cmds]

  Description:   Displays the current flow control

     Value                               Meaning

       0         Flow control disabled

       3         RTS/CTS flow control enabled

       4         XON/XOFF flow control enabled

       5         Transparent XON/XOFF flow control enabled

                       FLOW CONTROL CHARACTER - XOFF

  Type:          Register

  Format:        AT [cmds] S33=n [cmds]

  Default:       19

  Range:         0-255

  Unit:          ASCII

  Description:   Sets the character used to represent XOFF

                       FLOW CONTROL CHARACTER - XON

  Type:          Register

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

  Default:       17

  Range:         0-255

  Unit:          ASCII

  Description:   Sets the character used to represent XON

                             INACTIVITY TIMER

  Type:                  Configuration

  Format:                AT [cmds] \Tn [cmds]

  Default:               0

  Range:                 0-42

  Unit:                  1 minute

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

                             LINE SIGNAL LEVEL

  Type:           Immediate

  Format:         AT [cmds] %L [cmds]

  Default:        Unidentified

  Range:          9-43

  Unit:           -dBm

  Description:    Returns a value which indicates the received line
                  signal level

                            LINE SIGNAL QUALITY

  Type:          Immediate

  Format:        AT [cmds] %Q [cmds]

  Description:   Returns a value which indicates line signal quality

     Value                                Meaning

     0 - 7        Auto-retrain disabled

    8 - 255       Auto-retrain enabled

                    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

                          MNP - LINK NEGOTIATION

  Type:          Configuration

  Format:        AT [cmds] *Hn [cmds]

  Description:   Sets the speed at which an MNP link negotiation will
                 occur

    Command                              Function

      *H0        Link will be negotiated at highest possible speed

      *H1        Link will be negotiated at 1200bps

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested

    Command                              Function

       I0        Reports product identification code

       I1        Reports ROM checksum as OK or ERROR

       I2        Tests and reports ROM checksum

       I3        Reports firmware revision level

       I4        Reports OEM-defined identifier string

       I5        Reports country code

       I6        Reports Modem data pump model

                                SLEEP TIMER

  Type:                   Register

  Format                  AT [cmds] S24=n [cmds]

  Default:                0

  Range:                  0-255

  Unit:                   1 second

  Description:            Maximum duration of DTE and DCE inactivity
                          allowed prior to initiating low-power sleep
                          mode.

                            SPLIT-SPEED CONTROL

  Type:          Configuration

  Format:        AT [cmds] \Wn [cmds]

  Description:   Controls split-speed mode

    Command                              Function

      \W0        V.23 split-speed mode disabled

      \W1        V.23 split-speed mode enabled

                             SPLIT-SPEED MODE

  Type:          Configuration

  Format:        AT [cmds] %Fn [cmds]

  Description:   Controls split-speed direction

    Command                              Function

      %F0         Not used

      %F1         75bps transmit, 1200bps receive

      %F2         1200bps transmit, 75bps receive; when AT\W1 is set.

                           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/ error count not in
                     progress
                1
                     Remote digital loopback w/ error count in progress

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

                1    Local analog loopback w/ self-test in progress

                         TRANSMISSION LEVEL - PSTN

  Type             Register

  Format           AT [cmds] S91=n [cmds]

  Default          10

  Range            0-15

  Unit             -1 dBm

  Description      Sets the signal level for transmission over switched
                   phone lines

