
MICROCOM, INC.

DESKPORTE 28.8P

Card Type                    Modem (synchronous/asynchronous)
Processor                    Z80182
Processor Speed              18.4MHz
Chipset                      Microcom
Maximum Onboard Memory       32KB SRAM/128KB Flash ROM
Maximum Data Rate            28.8Kbps
Maximum Fax Rate             14.4Kbps
Data Bus                     Serial, parallel
Fax Class                    Class I & II
Data Modulation              Bell 103A/212A

                             ITU-T V.21, V.22, V.22bis, V.23, V.32,
                             V.32bis, V.34

                             Rockwell V.FC
Fax Modulation               Unidentified
Error Correction/Compression MNP5, MNP10, V.42, V.42bis

[Image]

                                CONNECTIONS

        Function           Label             Function              Label

  Line out                      CN1      RS-232/422 port            CN4

  Line in                       CN2      DC power                   CN5

  Parallel port                 CN3      Power switch               SW1

      DIAGNOSTIC LED(S) (POWER-UP)

  AA     TM      HS        Condition

  Off    On     Off     RAM test failed

  Off    On     Off      Modem failed

  On     On      On     CPU test failed

  Off    Off    Off    All tests passed

                   DIAGNOSTIC LED(S) (NORMAL OPERATION)

   LED           Color            Status               Condition

    AA        Unidentified          On            Auto-answer enabled

    AA        Unidentified          Off           Auto-answer disabled

    AA        Unidentified       Blinking           Phone is ringing

    RD        Unidentified       Blinking       Modem is receiving data

    RD        Unidentified          Off          Modem is not receiving
                                                          data

    SD        Unidentified       Blinking      Modem is transmitting data

    SD        Unidentified          Off         Modem is not transmitting
                                                          data

    CD        Unidentified          On          Carrier signal detected

    CD        Unidentified          Off            Carrier signal not
                                                        detected

    OH        Unidentified          On             Modem is off-hook

    OH        Unidentified          Off             Modem is on-hook

    TR        Unidentified          On             DTR signal is high

    TR        Unidentified          Off            DTR signal is low

    TM        Unidentified          On             Modem is performing
                                                       self-test

    TM        Unidentified       2s blink           RAM test failed

    TM        Unidentified       1s blink           ROM test failed

    TM        Unidentified      2/3s blink       Data pump test failed

    TM        Unidentified          Off            Self-tests passed

    HS        Unidentified          On          Modem is not connected or
                                                 is connected at between
                                                   4800bps and 12Kbps

    HS        Unidentified       Blinking         Modem is connected at
                                                   14.4Kbps or faster

    HS        Unidentified          Off        Modem is connected at less
                                                      than 4800bps

                        SUPPORTED STANDARD COMMANDS

                             Basic AT Commands

  +++, comma, A/

  A, B, E, H, I, L, M, O, P, Q, T, V, W, X, Y, Z

  &D, &F, &G, &M, &P, &T, &W, &X, &Y, &Z

                           Extended AT Commands

  \A, \B, \C, \E, \J, \N, \Q, \T

  %A, %C, %E, %F, %G

                            Special AT Commands

  -J, *H, )M, @M, :E

                                S-Registers

  S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S12, S14, S16, S18, S22,
  S23, S25, S26, S27

            Note: See MHI documentation for complete information.

                         Proprietary AT Command Set

                         DISPLAY BLACKLIST NUMBERS

  Type:                 Immediate

  Format:               AT [cmds] *N [cmds]

  Description:          Displays the list of all the numbers on the
                        blacklist (whether they are delayed/forbidden or
                        not), and their statuses.

                          DISPLAY DELAYED NUMBERS

  Type:           Immediate

  Format:         AT [cmds] *D [cmds]

  Description:    Displays the list of all delayed numbers and their
                  statuses.

                         DISPLAY FORBIDDEN NUMBERS

  Type:           Immediate

  Format:         AT [cmds] *F [cmds]

  Description:    Displays the list of all forbidden numbers and their
                  statuses.

                          CONNECT SPEED MATCHING

  Type:                 Configuration

  Format:               AT [cmds] %Ln [cmds]

  Description:          Selects whether the modem will attempt to match
                        the connect speed of the remote modem.

        Command                              Function

          %L0            Modem will connect at speeds supported by the
                         protocol selected only.

          %L1            Modem will match connect speeds.

          %L2            Modem will connect only at current speed.

          %L3            Modem will use V.8 automode with fallback to
                         ITU-T automode to match speeds.

          %L4            Modem will use V.8 automode to match speeds.

                          V.34 TRAINING RESPONSE

  Type:          Register

  Format:        AT [cmds] :T42=n [cmds]

  Description:   Sets what speed the modem will choose after a V.34
                 train.

    Command                              Function

     :T42=0       Standard speed selection.

     :T42=1       Choose speed approximately 2 speeds faster than
                  standard.

     :T42=2       Choose speed approximately 1 speed faster than
                  standard.

     :T42=3       Standard speed selection.

     :T42=4       Choose speed approximately 1 speed slower than
                  standard.

     :T42=5       Choose speed approximately 2 speeds slower than
                  standard.

       See MICROCOM, INC. DESKPORTE FAST for a full command summary.

