
BOCA RESEARCH, INC.

BOCAMODEM M144IW

Modem Type                   Data (synchronous/asynchronous)/Fax
Maximum Data Rate            14.4Kbps
Maximum Fax Rate             9600bps
Data Bus                     8-bit ISA
Fax Class                    Class I & II
Data Modulation Protocol     Bell 103A/212A

                             ITU-T V.21, V.22, V.22bis, V.23, V.32,
                             V.32bis
Fax Modulation Protocol      ITU-T V.21CH2, V.27ter, V.29
Error Correction/Compression MNP5, V.42, V.42bis

[Image]

                                CONNECTIONS

         Purpose           Location            Purpose           Location

  Line out                    CN1       Line in                    CN2

                        BASE I/O ADDRESS SELECTION

      Port          JP1/A          JP1/B         JP1/C          JP1/D

   COM1:           Closed         Open           Open           Open
  (3F8h)

  COM2: (2F8h)       Open         Closed          Open           Open

  COM3: (3E8h)       Open          Open          Closed          Open

  COM4: (2E8h)       Open          Open           Open          Closed

               INTERRUPT SELECTION

   IRQ      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 - FALLBACK/FALLFORWARD

  Type:          Configuration

  Format:        AT [cmds] %En [cmds]

  Example:       AT %E1 <CR>

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

  Command                                Function

   %E0          Auto-retrain disabled.

  %E1            Auto-retrain enabled.

  %E2            Fallback/fall forward enabled.

      BIT-MAPPED REGISTERS

   Registers        Default

      S14             170

      S21              0

      S22             117

      S23              7

      S27              9

      S28        Unidentified

      S31        Unidentified

      S39        Unidentified

      S40        Unidentified

      S41        Unidentified

                                BREAK SEND

  Type:          Configuration

  Format:        AT [cmds] \Bn [cmds]

  Example:       AT \B3<CR>

  Default:       3

  Range:         1-9

  Unit:          .1 second

  Description:   Sends break to modem.

                                BREAK TYPE

  Type:           Configuration

  Format:         AT [cmds] \Kn [cmds]

  Example:        AT \K1 <CR>

  Description:    Configures action of break signal.

     Command        Break from DTE     Break from DTE       Break from
                                                           remote modem
                   MNP/Normal mode      Direct mode

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

  \K1              Buffers cleared    Send break to      Buffers cleared
                   and break sent     remote modem       and break sent
                   to remote modem.   immediately,       to DTE.
                                      then enter
                                      command mode.

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

  \K3              Send break to      Send break to      Send break to
                   remote modem       remote modem       DTE immediately.
                   immediately.       immediately,
                                      then enter
                                      command mode.

  \K4              Enter command      Send break to      Break sent with
                   mode, do not       remote modem       received data to
                   send break to      immediately.       the DTE.
                   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 [cmd] %Cn [cmd]

  Example:       AT \N2 %C1 \K5<CR>

  Description:   Selects data compression.

  Command                                Function

  %C0            Data compression disabled.

  %C1            MNP5 enabled.

  %C2            V.42bis enabled.

   %C3          MNP5 and V.42bis enabled.

                               CONNECT MODE

  Type:          Configuration

  Format:        AT [cmds] \Nn [cmds]

  Example:       AT \N1 DT555-1212<CR>

  Description:   Sets connect mode.

  Command                                Function

      \N0        Normal mode enabled.

      \N1        Direct mode enabled.

      \N2        Reliable mode enabled.

      \N3        Auto-reliable mode enabled, MNP mode with fallback to
                 Normal mode.

      \N4        LAPM error-correction mode enabled.

      \N5        MNP error-correction mode enabled.

                            FAX TRANSMIT LEVEL

  Type:          Register

  Format:        AT [cmds] S92=n [cmds]

  Example:       ATS92=10<CR>

  Default:       10

  Range:         1-15

  Unit:          -1dBm

  Description:   Controls fax transmission level.

                               FLOW CONTROL

  Type:          Configuration

  Format:        AT [cmds] \Gn [cmds]

  Example:       AT \G1 &K3<CR>

  Description:   Selects modem port flow control.

    Command                              Function

   \G0          Flow control disabled.

  \G1            Flow control enabled.

                       FLOW CONTROL CHARACTER - XOFF

  Type:          Register

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

  Example:       ATS33=19<CR>

  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]

  Example:       ATS32=17<CR>

  Default:       17

  Range:         0-255

  Unit:          ASCII

  Description:   Sets the character used to represent XON.

                             LINE SIGNAL LEVEL

  Type:          Configuration

  Format:        AT [cmds] %L [cmds]

  Example:       AT %L &W<CR>

  Default:       Unidentified

  Range:         9-43

  Unit:          -1 dBm

  Description:   Returns received line signal level.

                    MAXIMUM BLOCK SIZE FOR TRANSMISSION

  Type:          Configuration

  Format:        AT [cmds] \An [cmds]

  Example:       AT \A1 %C1<CR>

  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]

  Example:       AT \L1 DT555-1212<CR>

  Description:   Selects the transfer mode for MNP.

  Command                                Function

   \L0          Stream mode for MNP enabled.

  \L1            Block mode for MNP enabled.

                          MNP10 LINK NEGOTIATION

  Type:          Configuration

  Format:        AT [cmds] *Hn [cmds]

  Example:       AT *H0 \W1 <CR>

  Description:   Sets the speed at which MNP10 link negotiation will
                 occur.

  Command                                Function

   *H0          Link will be negotiated at highest possible speed.

  *H1            Link will be negotiated at 1200bps.

                            PSTN TRANSMIT LEVEL

  Type:          Register

  Format:        AT [cmds] S91=n [cmds]

  Example:       ATS91=10<CR>

  Default:       10

  Range:         1-15

  Unit:          -1dBm

  Description:   Controls PSTN transmission level.

                           REPORT SIGNAL QUALITY

  Type:          Configuration

  Format:        AT [cmds] %Q [cmds]

  Example:       AT %Q &W<CR>

  Range:         0-255

  Description:   Reports signal quality.

  Note: A value of 8 or greater retrain enabled, only when %E1 is
  enabled.

                                SLEEP TIMER

  Format                  AT [cmds] S24=n [cmds]

  Example:                ATS24=0<CR>

  Default:                0

  Range:                  0 - 255

  Unit:                   1 second

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

                                TEST MODES

  Format               AT [cmds] S16=n [cmds]

  Example:             ATS16=128<CR>

  Default:             128

  Range:               0 - 255

  Unit:                Bit-mapped

  Description:         Select type of loopback test.

     Bit        Value                        Function

      0        0          Local analog loopback test not in progress.

               1          Local analog loopback test in progress.

      1        0          Remote analog loopback test not in progress.

               1          Remote analog loopback test in progress.

      2        0          Local digital loopback test not in progress.

               1          Local digital loopback test in progress.

      3        0          Remotely requested remote digital loopback test
                          not in progress.
               1
                          Remotely requested remote digital loopback test
                          in progress.

      4        0          Locally requested remote digital loopback test
                          not in progress.
               1
                          Locally requested remote digital loopback test
                          in progress.

      5        0          Remote digital loopback with local self-test
                          not in progress.
               1
                          Remote digital loopback with local self-test in
                          progress.

      6        0          Local analog loopback with local self-test not
                          in progress.
               1
                          Local analog loopback with local self-test in
                          progress.

      7        0          Remote analog loopback with local self-test not
                          in progress.
                1
                          Remote analog loopback with local self-test in
                          progress.

                          V.23 DIRECTION CONTROL

  Type:           Configuration

  Format:         AT [cmds] %Fn [cmds]

  Example:        AT %F1 &W<CR>

  Description:    Controls the direction of transmit/receive 75/1200bps,
                  only when \W1 is selected.

  Command                                Function

  %F0             75bps transmit/1200bps receive enabled.

   %F1           1200bps transmit/75bps receive enabled.

                           V.23 SPLIT BAUD MODE

  Type:          Configuration

  Format:        AT [cmds] \Wn [cmds]

  Example:       AT \W1 <CR>

  Description:   Controls V.23 split baud mode.

  Command                                Function

   \W0          V.23 split baud mode disabled.

  \W1            V.23 split baud mode enabled.

