
HAYES MICROCOMPUTER PRODUCTS, INC.

ULTRA SMARTMODEM 9600

Card Type                      Fax, Modem (synchronous/asynchronous)
Chip Set                       Unidentified
Maximum Data Rate              9600bps
Data Bus                       External
Data Modulation Protocol       Bell 103/212A

                               ITU-T V.21, V.22, V.22bis, V.23, V.32
Error Correction/Compression   Adaptive data compression, V-series LAPB,
                               MNP5, V.42, V.42bis, X.25

[Image]

                                CONNECTIONS

         Function           Label             Function             Label

  Line in                        CN1       DC power                 CN4

  Line out                       CN2       Power switch             SW2

  RS-232/422                     CN3

                           COMMAND SET SELECTION

           Setting                    SW1/C                 SW1/D

      AT commands only                 Up                     Up

    Asynchronous V.25bis               Up                    Down

     Synchronous V.25bis              Down                    Up

        HDLC framing

     Synchronous V.25bis              Down                   Down

      Character framing

  Note: Our normal convention for switches is On/Off, this document will
  use Up/Down.

                        USER CONFIGURABLE SETTINGS

                      Setting                         Label      Position

  Command recognition enabled/smart mode              SW1/A        Up

  Command recognition disabled/dumb mode              SW1/A       Down

  Carrier signal adjustment disabled                  SW1/B        Up

  Carrier signal adjustment enabled                   SW1/B       Down

  Note: Our normal convention for switches is On/Off, this document will
  use Up/Down.

                             DIAGNOSTIC LED(S)

   LED       Color      Status                   Condition

    HS        Red         On          Modem is operating at 4800bps or
                                                   faster

    HS        Red        Off          Modem is operating at slower than
                                                  4800bps

    AA        Red         On         Auto-answer enabled/ring indicated
                                         when Auto-answer disabled

    AA        Red        Off         Auto-answer disabled/ring indicated
                                          when Auto-answer enabled

    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     Self-test or diagnostic mode enabled

                         Proprietary AT Command Set

                                   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.

          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

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

           @             Wait for quiet answer

           ;             Modem returned to command state after dialing

                            REPORT INFORMATION

  Type:          Immediate

  Format:        AT [cmds] In [cmds]

  Description:   Displays information requested

    Command                              Function

       I0        Reports product code

       I1        Reports ROM checksum

       I2        Tests and reports ROM checksum

                         BUFFER SIZE - LOWER LIMIT

  Type:                  Register

  Format:                AT [cmds] S49=n [cmds]

  Default:               8

  Range:                 1-249

  Unit:                  1 byte

  Description:           Controls the low-end size of the buffer during
                         error-control or auto-speed buffering mode

                         BUFFER SIZE - UPPER LIMIT

  Type:                  Register

  Format:                AT [cmds] S50=n [cmds]

  Default:               16

  Range:                 2-250

  Unit:                  1 byte

  Description:           Controls the high-end size of the buffer during
                         error-control or auto-speed buffering mode

                      LEASED LINE ATTENUATION LEVEL

  Type           Register

  Format         AT [cmds] S63=n [cmds]

  Default        0

  Range          0-15

  Unit           -1 dBm

  Description    Sets the power level for transmission over leased lines

                                FRAME LIMIT

  Type                   Register

  Format                 AT [cmds] S69=n [cmds]

  Default:               15

  Range:                 0-15

  Unit:                  1 frame

  Description:           Sets the maximum number of packets that may be
                         sent without acknowledgment by the remote
                         system.

  Note:                  LAPM connections use a maximum of 15 frames.
                         LAPB and X.25 connections use a maximum of 8
                         frames.

                           FRAME RE-TRANSMISSION

  Type                  Register

  Format                AT [cmds] S70=n [cmds]

  Default:              10

  Range:                0-255

  Unit:                 1 frame

  Description:          Sets the limit for the number of re-transmissions
                        the local modem attempts when an error-control
                        mechanism detects frame transmission data errors.
                        After the re-transmission limit has been reached,
                        the modem initiates the hang-up process.

                             LINK LAYER TIMER

  Type                   Register

  Format                 AT [cmds] S71=n [cmds]

  Default:               2

  Range:                 1-255

  Unit:                  .1 second

  Description:           Sets the maximum duration the local modem waits
                         for a response after sending the link layer. If
                         no response is received within LINKLIMIT (see
                         note), the local modem re-transmits the link
                         layer.

  Note:                  The duration is determined according to the
                         formula:

                         LINKLIMIT = 2(maximum packet size + 11)(8 + line
                         speed[bps]) + S71 + 500 ms

                              FLAG IDLE TIMER

  Type                    Register

  Format                  AT [cmds] S72=n [cmds]

  Default:                30

  Range:                  1-255

  Unit:                   1 second

  Description:            Sets the maximum duration the modem waits after
                          detecting loss of both data and flag-idle
                          signals. When the maximum duration is reached,
                          the modem initiates the hang-up process. A
                          value of 0 in S72 allows an indefinite wait.

                              DATA LOSS TIMER

  Type                  Register

  Format                AT [cmds] S73=n [cmds]

  Default:              5

  Range:                1-255

  Unit:                 1 second

  Description:          Sets the maximum duration the modem waits after
                        detecting loss of data while receiving good
                        carrier and flag idle signals. When the maximum
                        duration is reached, the local modem sends a
                        query to the remote modem to determine if it is
                        operating properly. When the value calculated for
                        QUERYLIMIT is reached (see note), the modem
                        initiates the hang-up process.

  Note:                 The local modem will send the query several times
                        according to the formula:

                        QUERYLIMIT= 2(LINKLIMIT)(S73) seconds

                        The value for LINKLIMIT is defined in S71.

                              ASU NEGOTIATION

  Type           Register

  Format         AT [cmds] S84=n [cmds]

  Description:   Sets the Adaptive Start-Up (ASU) negotiation method

    Command                              Function

     S84=0       ASU disabled

    S84=128      Fixed startup

    S84=129      Both local and remote modems use fast startup

    S84=130      Both local and remote modems use smooth startup

    S84=131      Local modem uses fast startup, remote uses smooth
                 startup

    S84=132      Local modem uses smooth startup, remote uses fast
                 startup

                          ASU NEGOTIATION REPORT

  Type           Register

  Format         AT [cmds] S85? [cmds]

  Description:   Reports the Adaptive Start-Up (ASU) negotiation method

     Value                               Meaning

       0         ASU disabled

      128        Fixed startup

      129        Both local and remote modems use fast startup

      130        Both local and remote modems use smooth startup

      131        Local modem uses fast startup, remote uses smooth
                 startup

      132        Local modem uses smooth startup, remote uses fast
                 startup

                                  MI/MIC

  Type              Register

  Format            AT [cmds] S92=n [cmds]

  Description:      Controls the Mode Indicate/Mode Indicate Common
                    (MI/MIC) interface.

     Command                              Function

      S92=0         MI/MIC disabled

      S92=1         Level triggered, originate mode, ring indicator pulse
                    enabled

      S92=3         Edge triggered, originate mode, ring indicator pulse
                    enabled

      S92=5         Level triggered, answer mode, ring indicator pulse
                    enabled

      S92=7         Edge triggered, answer mode, ring indicator pulse
                    enabled

      S92=9         Level triggered, originate mode, ring indicator pulse
                    disabled

      S92=11        Edge triggered, originate mode, ring indicator pulse
                    disabled

      S92=13        Level triggered, answer mode, ring indicator pulse
                    disabled

      S92=15        Edge triggered, answer mode, ring indicator pulse
                    disabled

                             V.25bis DTE SPEED

  Type            Register

  Format          AT [cmds] S93=n [cmds]

  Description:    Sets the speed of the local serial port when in V.25bis
                  mode.

    Command                              Function

     S93=3        300bps

     S93=5        1200bps

     S93=6        2400bps

     S93=7        4800bps

     S93=9        9600bps

                            COMMAND SET OPTIONS

  Type             Register

  Format           AT [cmds] S94=n [cmds]

  Default:         0

  Range:           0-15

  Unit:            Bit-mapped

  Description:     Sets various options for command set modes

   Bit    Value                           Function

  1, 0        00   Use AT command set

              01   Use asynchronous V.25 command set

              10   Use synchronous V.25 command set with HDLC framing

             11    Use synchronous V.25 command set with character
                   framing

    2          0   Addressed calling

              1    Direct access calling

    3          0   Use ASCII character set

              1    Use EBCDIC character set

                             PAD CONFIGURATION

  Type:                Register

  Format:              AT [cmds] S53=n [cmds]

  Description:         Sets various options for the X.25 Packet
                       Assembler/Disassembler.

       Command                              Function

        S53=0          CCITT compatibility

        S53=1          CCITT compatibility, display channel number before
                       PAD prompt ( 1* )

        S53=2          Fixed user interface, PAD prompt hyphen ( - )

        S53=3          Fixed user interface, display channel number
                       before PAD prompt ( 1- )

        S53=4          Fixed control interface, PAD prompt hyphen

        S53=5          Fixed control interface, display channel number
                       before PAD prompt

        S53=6          Fixed user and fixed control interface, PAD prompt
                       hyphen

        S53=7          Fixed user and fixed control interface, display
                       channel number before PAD prompt

                           MINIMUM INCOMING LCN

  Type                    Register

  Format                  AT [cmds] S74=n S75=n [cmds]

  Default:                0 (S74), 0 (S75)

  Range:                  1-40 (S74), 1-99 (S75)

  Unit:                   None

  Description:            These registers set the lowest Logical Channel
                          Number (LCN) that the packet driver will
                          attempt to answer calls on. The address itself
                          may range from 0 - 4095.

  Note:                   The address is determined by the formula:

                          ADDRESS = S74 * 100 + S75

                           MAXIMUM INCOMING LCN

  Type                    Register

  Format                  AT [cmds] S76=n S77=n [cmds]

  Default:                40 (S76), 95 (S77)

  Range:                  1-40 (S76), 1-99 (S77)

  Unit:                   None

  Description:            These registers set the highest Logical Channel
                          Number (LCN) that the packet driver will
                          attempt to answer calls on. The address itself
                          may range from 0 - 4095.

  Note:                   The address is determined by the formula:

                          ADDRESS = S76 * 100 + S77

                               OUTGOING LCN

  Type                    Register

  Format                  AT [cmds] S78=n S79=n [cmds]

  Default:                0 (S78), 16 (S79)

  Range:                  1-40 (S78), 1-99 (S79)

  Unit:                   None

  Description:            These registers set the Logical Channel Number
                          (LCN) that the packet driver will place calls
                          on. The address itself may range from 0 - 4095.

  Note:                   The address is determined by the formula:

                          ADDRESS = S78 * 100 + S79

                              RESTART REQUEST

  Format         AT [cmds] S80=n [cmds]

  Default:       1

  Range:         0-255

  Unit:          None

  Description:   Sets the maximum number of retransmission requests

                         ACKNOWLEDGMENT WAIT TIMER

  Type:                  Register

  Format                 AT [cmds] S81=n [cmds]

  Default:               18

  Range:                 0-255

  Unit:                  10 seconds

  Description:           Maximum time the modem will wait for
                         acknowledgment of a request for retransmission
                         before it initiates recovery.

