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SimpleTech STI-FAX/28.8 User Manual

28.8 communicator v.34 data/fax modem plug n’ play pc card
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28.8 Communicator
V.34 Data/Fax Modem
Plug n' Play PC Card
User Guide
Document Part Number 61000-00228-000
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Summary of Contents for SimpleTech STI-FAX/28.8

  • Page 1 28.8 Communicator V.34 Data/Fax Modem Plug n’ Play PC Card User Guide Document Part Number 61000-00228-000...
  • Page 2 1-800-367-7330 3001 Daimler Street, Santa Ana, California 92705 (714) 476-1180 (714) 476-1209 fax...
  • Page 3 28.8 Communicator V.34 Data/Fax Modem Plug n’ Play PC Card User Guide...

  • Page 4: Limited Warranty

    Limited Warranty Simple Technology Incorporated guarantees its products to be of the highest quality, and to be free of defects in material, design and workmanship. STI will repair or replace this product, without charge for either parts or labor, if it is returned due to defects in material, design, and/or workmanship only.

  • Page 5: Table Of Contents

    Contents 1 Introduction ............1 Using the Guides ........... 2 Installation Requirements ........3 Unpacking the Card ..........4 Technical Support ..........4 2 Describing the Kit ..........5 The Hardware ............5 The Software ............7 Specifications ............7 3 Installing the Card ..........9 Checking for Card and Socket Services ....
  • Page 6 5 Using AT Commands ..........15 Some Notes About AT Commands ....... 17 Configuring the Modem ........18 Sample Configuration 1 ........18 Sample Configuration 2 ........19 Sample Configuration 3 ........20 AT Commands ............21 AT& Commands ..........27 AT% Commands ..........35 AT\ Commands ..........36 AT) Commands ..........40 AT@ Commands..........40 AT* Commands ..........41...
  • Page 7 FCC and DOC Compliance The following statements are provided in accordance with Federal Communications Commission (FCC) and Canadian Department of Communications (DOC). Please read these statements carefully before installing or operating your modem. FCC Part 68 Requirements This equipment complies with Part 68 of the FCC Rules. On the bottom of this equipment is a label that contains, among other information, the FCC Registration Number and Ringer Equivalence Number (REN) for this equipment.
  • Page 8 If you experience trouble with this telephone equipment, please contact Simple Technology at 1-800-367-7330 for information on obtaining service or repairs. The telephone company may ask that you disconnect this equipment from the network until the problem has been corrected or until you are sure that the equipment is not malfunctioning.
  • Page 9 DOC Certification Label The Canadian Department of Communications (DOC) label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational, and safety requirements. The Department does not guarantee the equipment will operate to the user’s satisfaction. Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company.
  • Page 10 The LOAD NUMBER (LN) assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop which is used by the device, to prevent overloading. The termination on a loop may consist of any combination of devices subject only to the requirement that the sum of the LOAD NUMBERS of all the devices does not exceed 100.
  • Page 11 Avant d’installer ce materiel, l’utilisateur doit s’assurer qu’il est permis de le raccorder aux installations de l’entreprise locale de telecommunications. Le materiel doit egalement etre installe en suivant une methode acceptee de raccordement. L’abonne ne doit pas oublier qu’il est possible que la conformite aux condi- tions enoncees ci-dessus n’empechent pas la degradation du service dans certaines situations.
  • Page 12 Notes:...

  • Page 13: Introduction

    1. Introduction This is a User Guide for the 28.8 Communicator PC Card manufactured by Simple Technology. The 28.8 Communicator is a modem PC Card that features 28.8 Kbps data transfer, 14.4 Kbs fax, cellular-ready, and voice capabilities. The card allows you to send and receive data and fax. Also, the card is cellular ready.

  • Page 14: Using The Guides

    Using the Guides Read the rest of this chapter for information about the Installation Requirements, Unpacking the Card, and Technical Support. Then, read the following chapters as follows: Refer to Chapter 2 for an overview description of the kit components. Refer to Chapter 3 for instructions on installing the card.

  • Page 15: Installation Requirements

    Installation Requirements The following are the minimum requirements for installing the card: • A computer with the following features: - An available PC Card Type II socket - 80386 or higher microprocessor - 2 MB of RAM - An internal hard drive - A 3.5-inch floppy drive •...

  • Page 16: Unpacking The Card

    Unpacking the Card The following items are included with your kit: • 28.8 Communicator • Line Access Cable • User Guide (this document) • Simple Installation Instructions • Connecting the STI Modem to Cell Phones flyer (P/N 61000-00062-xxx) • Communications Software and User Guide. If any item is missing or damaged, contact your dealer immedi- ately.

  • Page 17: Describing The Kit

    2. Describing the Kit Use the descriptions and illustrations in this chapter to become familiar with your kit. The Hardware Refer to the figures and the descriptions below and on the next page to become familiar with the hardware: • The 28.8 Communicator (see Figure 2-1). The Type II PC Card contains a connector for a PC Card socket, and a connector for the Line Access Cable.
  • Page 18 • The Line Access Cable (see Figure 2-2). This cable contains a connector for the card, a standard jack for a phone line, and a jack for a handset. The connector and the jacks are keyed and will install in only the proper orientation. The connector for the card latches to the card to ensure continuous connection during use.

  • Page 19: The Software

    The Software • Communication Software. The communication software provides the user interface to send and receive data and fax, and to use the computer as an answering machine. Refer to the guide that is provided with the communication software for instructions about the installation and start-up of the software.
  • Page 20 Voice Features The voice capabilities of the modem allow you to use your computer as an answering machine Diagnostics Power-on self test Local digital loop test Local analog loop and analog loop self test Remote digital loop and digital loop self test Power Consumption Active mode (off-hook): 975mW Standby mode (on-hook): 40mW...

  • Page 21: Installing The Card

    3. Installing the Card This chapter describes checking for Card and Socket Services, attaching the card, and installing the communication software. Checking for Card and Socket Services You must have Card and Socket Services Release 2.1 provided with your computer installed before using the modem. Card and Socket Services Release 2.1 are device drivers that handle all of the detecting, configuring, and enabling of any compatible PC Card inserted into the system.

  • Page 22: Attaching The Card

    Attaching the Card Perform the following: Orient the modem card with the 68-pin female connector facing the PC Card socket. Insert the card into the PC Card socket. The card is keyed and will insert in only the proper orientation. Some computers will beep when the computer recognizes the card.

  • Page 23: Configuring The Communication Software

    Configuring the Communication Software While some expansion slot adapters and built-in COM ports can share IRQs, PC Cards cannot share IRQs. To avoid sharing IRQs, the IRQ assigned to your modem by Card and Socket Services may be set differently than Windows and the communication software expects.
  • Page 24 Notes:...

  • Page 25: Using The Card

    4. Using the Card This chapter provides information on the following topics: • Inserting and Removing the Card • About Call Waiting • Connecting to Cell Phones • Protecting the Card Inserting or Removing Your Card You can insert or remove the card any time the computer is not accessing the card.

  • Page 26: Connecting To Cell Phones

    Connecting to Cell Phones The card features MNP10-EC standard. This standard provides the level of error correction needed to reliably connect to the noisy cell phone environments. To use the card with a cell phone, you need to purchase a cable compatible to your brand of cell phone.

  • Page 27: Using At Commands

    5. Using AT Commands Communications programs control your modem by issuing modem instructions called AT commands. While it is usually easiest to let the communication software handle the task of issuing AT commands, there may be occasions when you will want to control a series of commands yourself.
  • Page 28 descriptions. Similarly, the AT commands that affect, or are related to, the contents of an S-register are listed at the end of each S-register description. Refer to Table 5-1 for a summary of the basic AT commands. Refer to AT Commands for the complete list of AT commands Table 5-1.

  • Page 29: Some Notes About At Commands

    Some Notes About AT Commands • Some AT commands override other AT commands. For example, issuing AT &K3 &K4 <Enter> will not enable both hardware flow control (&K3) and software flow control (&K4), it will only enable software flow control. The latter command overrides the former.

  • Page 30: Configuring The Modem

    Configuring the Modem By default, your modem is set up to automatically detect the appropriate line speed, use hardware flow control, and connect using error correction and data compression protocols, if possible. These settings are stored in read-only memory (ROM) at the factory and can be recovered at any time by issuing the &F0 command, described later in the chapter.

  • Page 31: Sample Configuration 2

    • &D2 instructs your modem to hang up when the data terminal ready (DTR) signal drops. This will speed up the hang-up process for most communications software packages. • &W0 stores this configuration as profile 0. Now whenever you type ATZ <Enter>, you will restore this profile. NOTE: Since your modem will be using hardware flow control, your communications software must...

  • Page 32: Sample Configuration 3

    Sample Configuration 3 If your software does not support hardware flow control, but you would like to transfer files with a protocol like XMODEM or ZMODEM, you should try configuring your modem as follows: AT &F0 &C1 &D2 &K0 &Q0 \J1 <Enter>. The first three commands are the same as described in the first example.

  • Page 33: At Commands

    AT Commands This section list the AT commands that the modem uses. This listing is organised by the nonalphabetic first character after “AT” (i.e., no letter, &, %, \, ), @, *, :, and -), and then in alphanumeric order. The default settings are listed in bold. Answer Command.
  • Page 34 Dial Command. This command directs the modem to go off-hook, wait for a dialtone, and dial the number indicated in the dial string, n. The dial string may contain the characters 0-9 for pulse-mode dialing or 0-9, A-D, *, and # for touch-tone dialing. Spaces, hyphens, and parentheses can be included in the command to improve readability.
  • Page 35 Put the modem briefly on-hook. This can be useful for transferring calls on some telephone systems. (See S29.) Turn off calling tone while originating this call only. Perform MNP10 link negotiation at 1200 bps for this call only (see *H). Enable power level adjustment during MNP 10 link negotiation for this call only (see “)Mn”).
  • Page 36 Line Connection Speed Setting. This command is not supported. Use N0 and S37 to force connect mode. Hang-up Command. On-hook (hang up). Off-hook. Identification Command. Report product code (e. g. 28800). Report read-only memory (ROM) checksum. This number should always remain the same. Reports OK.
  • Page 37 Automatic Line Speed Detection Setting. (See also S31, S37, and Fn.) Automatic line speed detection disabled. Handshak- ing will be conducted according to the contents of S37. Automatic line speed detection enabled. On-line Command. This command switches the modem from command mode to on-line mode. If there is no established connection, ERROR is returned.
  • Page 38 Result Code Format Setting. (See S14, S95, Qn, Wn, Xn.) Numeric result codes. Verbose result codes. Connection Message Setting. If you change the value of S95, it may override the Wn setting. (See S31, Vn, Qn.) Report DTE rate only. For example: CONNECT 57600 Report DCE rate, error correction protocol, and DTE rate.

  • Page 39: At& Commands

    Long Space Disconnect Setting. This command determines whether the modem hangs up when it receives a long space signal (greater than 1.6 seconds) from the remote modem. If enabled, the modem will send a 4 second space signal to the remote modem before hanging up. (See S21.) Disable long space disconnect.
  • Page 40 &Fn Restore Factory Profile Command. This command will restore one of the two preset factory profiles. These profiles enable automatic line speed detection, hardware flow control, error correction, and data compression. You can also define and store your own specialized profiles.
  • Page 41 &Pn Pulse Dial Make/Break Ratio Setting. Enabled on a per country basis. If enabled the dial make/break ratio is as follows: &P0 39%-61% dial ratio at 10 pulses per second. &P1 33%-67% dial ratio at 10 pulses per second. &P2 39%-61% dial ratio at 20 pulses per second. &P3 33%-67% dial ratio at 20 pulses per second.
  • Page 42 &Tn Diagnostic Test Commands. This set of commands provides diagnostic tests that comply with the CCITT V.54 recommendations. All connections established during testing must be normal or direct connections. (See S16, S18.) &T0 Terminate test in progress. Generally during a test the modem is on-line.
  • Page 43 &T3 Local digital loopback test. This test verifies the operation of two connected modems and the phone channel. For example: Your modem should be on-hook and in command mode. Type AT\N0 <Enter>. This specifies a normal connection. Type AT S18=10 <Enter>. This specifies a test period of 10 seconds.
  • Page 44 &T5 Prohibits local modem from accepting a request from the remote modem for a remote digital loopback test. (See S23.) &T6 Remote digital loopback test. This test verifies the operation of two connected modems and the phone channel. For example: Your modem should be on-hook and in command mode.
  • Page 45 &T7 Remote digital loopback with self-test. This test verifies the operation of two connected modems and the phone channel. It sends an internal test pattern through the loop and returns a numeric message that indicates the number of errors that were counted during the test period.
  • Page 46 &T8 Local analog loopback with self-test. This test checks the operation of your modem’s transmitter and receiver. It sends an internal test pattern through the loop and returns a numeric message that indicates the number of errors that were counted during the test period.

  • Page 47: At% Commands

    &Yn Default Reset Profile Setting. This command determines which user-defined profile will be used after a power-on reset. &Y0 Select user-defined stored profile 0. &Y1 Select user-defined stored profile 1. &Zn=X Store Telephone Number Command. This command stores a phone number, x, to phone number entry n, where n is 0, 1, 2, or 3.

  • Page 48: At\ Commands

    %Q Line Signal Quality Command. This command reports the line signal quality. Typical values are in the range from 0 to 2 and increase as the signal quality degrades. Based on this value, retrain or fallback/fall forward may be initiated if enabled by the %E1 or %E2 commands.
  • Page 49 DTE Rate Adjust Setting. Controls whether or not the modem will adjust the data terminal equipment (DTE) rate to match the data communication equipment (DCE) rate when the connection is complete. When using data compression schemes, you will want to disable this setting (\J0).
  • Page 50 Modem receives a BREAK from the computer while operating in command mode. (See \B.) \K0 Clears data buffers and sends BREAK to remote modem. \K1 Same as \K0. \K2 Sends BREAK to remote modem immediately. \K3 Same as \K2. \K4 Sends BREAK to remote modem in sequence with data.
  • Page 51 \Ln MNP Block/Stream Mode Setting. Data is packetized when it arrives at the modem from the computer. In stream mode, a packet is sent either when a full block is received (see /A), or if no additional data is received after 30 ms.

  • Page 52: At) Commands

    AT) Commands )Mn Cellular Power Level Setting. This command enables or disables the automatic transmit power level adjustment during MNP 10 link negotiation. The @Mn command sets the initial modem transmit level. (See S40.) )M0 Disable power level adjustment. )M1 Enable power level adjustment. )M2 Enable power level adjustment during MNP10 link negotiation.

  • Page 53: At* Commands

    AT* Commands *Hn Link Negotiation Speed Setting. This command controls the initial connection speed for MNP 10 link negotiations. (See S28.) *H0 Link negotiation at highest speed supported. *H1 Link negotiation at 1200 bps. *H2 Link negotiation at 4800 bps. AT: Commands Compromise Equalizer Setting.
  • Page 54 Notes:...

  • Page 55: Fax And Voice Commands

    6. Fax and Voice Commands The modem supports the CCITT Group 3, and Class 1 and 2 fax command sets. We suggest that you use your fax software to issue all the necessary fax commands to your modem. Program- mers should refer to the CCITT specification. This modem also supports voice functions.
  • Page 56 Notes:...

  • Page 57: Result Codes And Messages

    7. Result Codes and Messages The modem responds to most AT commands with a numeric result code (0, for example) or a verbose message (OK, for example). By default, the modem will respond with verbose messages. A description of all of the modem’s result codes and corresponding messages are shown in Table 7-1.
  • Page 58 Table 7-1. Result Codes/Messages Numeric Verbose Meaning Command executed. CONNECT Connection established. RING Ring is detected. NO CARRIER Modem hangs up because: a carrier is not detected, carrier is lost, or carrier has been inactive for the period of time set in the S30 register.
  • Page 59 Table 7-1. Result Codes/Messages (continued) Numeric Verbose Meaning CONNECT 19200 19200 bps DTE rate. CONNECT 38400 38400 bps DTE rate. CONNECT 57600 57600 bps DTE rate. CONNECT 75TX/1200RX V.23 originate connection. CONNECT 1200TX/75RX V.23 answer connection. Connection established in fax mode. DATA Connection established in data mode.
  • Page 60 Table 7-1. Result Codes/Messages (continued) Numeric Verbose Meaning CARRIER 28800 28800 bps DCE rate. CONNECT 16800 16800 bps DTE rate. CONNECT 19200 19200 bps DTE rate. CONNECT 21600 21600 bps DTE rate. CONNECT 24000 24000 bps DTE rate. CONNECT 26400 26400 bps DTE rate.

  • Page 61: Registers

    8. S-Registers A modem’s S-registers store important configuration informa- tion about your modem. Some S-registers provide status infor- mation only and you cannot write to them (they are read-only). Often these read-only S-registers reflect the status of AT com- mand settings. Other S-registers are writeable, and can be written to change the modem’s behavior.
  • Page 62 Table 8-1. S-Register Summary Function Range Units Default Rings to auto answer 0-255 rings Ring counter 0-255 rings Escape character 0-255 ASCII Carriage-return character 0-127 ASCII Line-feed character 0-127 ASCII Backspace character 0-255 ASCII Wait time for dial tone 2-255 Wait time for carrier 1-255 Pause for dial delay modifier 0-255...
  • Page 63 Table 8-1. S-Register Summary(continued) Function Range Units Default General bit-mapped options — — 54 (36h) Sleep inactivity timer 0-255 Delay to DTR off 0-255 0.01s RTS-to-CTS delay 0-255 0.01s General bit-mapped options — — General bit-mapped options — — Flash dial modifier time 0-255 0.01s Disconnect inactivity timer...
  • Page 64 Table 8-1. S-Register Summary(continued) Function Range Units Default General bit-mapped options — — 195 (C3h) Reserved — — — Reserved — — — Reserved — — — Reserved — — — Data compression control — — V.42 negotiation control — —...

  • Page 65: Example: Writing To An S-Register

    Example: Writing to an S-Register If you wish to have your modem automatically answer incoming calls, you would change the value in the S0 register. This register determines whether your modem is in auto-answer mode or not, and is by default 0 (auto-answer is disabled). Setting the register to any other value will cause your modem to answer incoming calls after the specified number of telephone rings.

  • Page 66: Example: Setting An S-Register

    Example: Setting an S-Register The S95 register is often written to in order to increase the information returned by the modem when establishing remote connections. For instance, to enable the CONNECT, CARRIER, PROTOCOL, and COMPRESSION messages, you would compute the S95 register value as follows: Enable standard CONNECT message Enable CARRIER message Enable PROTOCOL message...

  • Page 67: Example: Interpreting An S-Register

    Example: Interpreting an S-Register One simple method for interpreting the value in a read-only Bit- Mapped Option register is to look at the S-register description to find out which AT commands affect the S-register’s value. Then, by typing AT&V <Enter>, you can view the active configuration for the status of these AT commands.
  • Page 68 The following section lists all the S-registers in numerical order. Rings to Auto-Answer. Sets the number of telephone rings required before the modem automatically answers a call. If S0=0, then auto-answer is disabled. Range: 0-255 Units: rings Default: 0 In Profile: Yes Writeable: Yes Ring Counter.
  • Page 69 Carriage Return Character. Range: 0-127 Units: ASCII decimal Default: 13 In Profile: No Writeable: Yes Line Feed Character. Range: 0-127 Units: ASCII decimal Default: 10 In Profile: No Writeable: Yes Backspace Character. Range: 0-32 Units: ASCII decimal Default: 8 In Profile: No Writeable: Yes Wait Time for Dialtone.
  • Page 70 Wait Time for Carrier. Sets the length of time that a) the modem waits for a carrier before hanging up, b) the modem waits for silence when processing the @ dial command modifier, and c) the modem waits for a dialtone when processing the W dial command modifier.
  • Page 71 Carrier Loss Disconnect Time. Sets the length of time that the modem waits to hang up the line after it detects a loss of carrier. If S10 is set to 255, the modem will not hang up when the carrier is lost. Range: 1-255 Units: 0.1 seconds Default: 14...
  • Page 72 Bit-Mapped Options. By default the modem is set up to originate calls, use verbose result codes, and to echo commands. Default: 138 (2+8+128) In Profile: Yes Writeable: No Value Meaning Not used Command echo disabled (E0). Command echo enabled (E1). Send result codes (Q0).
  • Page 73 Bit-Mapped Options (Test Mode). By default, all loopback testing is disabled. Default: 0 In Profile: No Writeable: No Value Meaning Disable local analog loopback test. Enable local analog loopback test (&T1). Not used. Disable local digital loopback test. Enable local digital loopback test (&T3).
  • Page 74 Test Timer. Sets the duration of the modem diagnostic tests initiated with the &Tn commands. If set to 0, tests will continue until forced to stop by another command, like &T0. Range: 0-255 Units: seconds Default: 0 In Profile: Yes Writeable: Yes...
  • Page 75 Bit-Mapped Options. Default: 52 [4+16+32] In Profile: Yes Writeable: No Value Meaning Not used. Reserved. Clear to send (CTS) always on (&R0). CTS follows request to send (RTS) (&R1). 3, 4 Data terminal ready (DTR) behaves according to &D0. DTR behaves according to &D1. DTR behaves according to &D2.
  • Page 76 Bit-Mapped Options (Speaker/Results). By default, the speaker is on at low volume during call establishment, and result codes are limited according to X4. Default: 119 (3+4+112) In Profile: Yes Writeable: No Value Meaning 0, 1 Speaker off (L0). Low speaker volume (L1). Low speaker volume (L2).
  • Page 77 Bit-Mapped Options. By default, the modem assumes 2400 bps DTE rate with no parity. Remote digital loopback tests are allowed. Default: 55 (1+6+48) In Profile: Yes Writeable: No Value Meaning Prohibit remote digital loopback (&T5). Allow remote digital loopback (&T4). 1, 2, 3 0-300 bps data terminal equip- ment (DTE) rate.
  • Page 78 Sleep Inactivity Timer. Sets the length of time that the modem will operate in normal mode with no activity before entering low-power sleep mode. If set to 0, the low-power sleep mode is disabled. Range: 0-255 Units: seconds Default: 10 In Profile: Yes Writeable: Yes DTR Drop Detect Delay.
  • Page 79 Bit-Mapped Options. Default: 73 (9+64) In Profile: Yes Writeable: No Value Meaning 0, 1, 3 Direct asynchronous mode connection (&M0 or &Q0). Reliable asynchronous mode connection (&Q5). Normal asynchronous mode connection (&Q6 or \N0). 2, 4, 5 Reserved. Select CCITT mode (B0). Select Bell mode (B1).
  • Page 80 Flash Dial Modifier Time. Sets the length of time that the modem will go on-hook when processing the ! dial command modifier. Range: 0-255 Units: 0.01 seconds Default: 70 In Profile: No Writeable: No Disconnect Inactivity Timer. Sets the length of time that the modem waits before disconnecting when no data is sent or received.
  • Page 81 Bit-Mapped Options. Default: 194 (2+192) In Profile: Yes Writeable: No Value Meaning Reserved. Disable automatic line speed detection (N0). Enable automatic line speed detection (N1). 2, 3 Report DTE rate connection message only (W0). Full reporting of connection messages (W1). Report DCE rate connection message only (W2).
  • Page 82 XOFF Character. Range: 0-255 Units: ASCII decimal Default: 19 In Profile: No Writeable: Yes Bit-Mapped Options (V.42 Control after LAPM Failure). This register specifies the behavior of the modem upon failure of the LAPM error-correction protocol. Default: 7 In Profile: Yes Writeable: Yes Value Meaning...
  • Page 83 Line Speed. (See also Nn.) Range: 0-12 Default: 0 In Profile: Yes Writeable: Yes Automatic line speed detection (N1). 300 bps. 300 bps. 300 bps. Reserved. 1200 bps. 2400 bps. V.23. 4800 bps. 9600 bps. 12000 bps. 14400 bps. 7200 bps.
  • Page 84 Delay Before Force Hang-up. Sets the length of time that your modem waits after receiving an H0 command (or a DTR drop if your modem is set to follow DTR) before it hangs up. An OK message indicates that all data was transmitted before disconnecting.
  • Page 85 Bit-Mapped Options. By default, the MNP block is 128 characters, break control is set according to \K5, and MNP extended services are set according to -K1. Default: 105 (1+40+64) In Profile: Yes Writeable: No Value Meaning 0, 1 Disable according to -K0. Enable according to -K1.
  • Page 86 Bit-Mapped Options. Default: 195 (3+64+128) In Profile: Yes Writeable: No Value Meaning 0, 1 Disable compression (%C0). MNP 5 compression (%C1). V.42bis compression (%C2). V.42bis and MNP5 compression (%C3). 2, 6 Disable line quality monitor (%E0). Enable line quality monitor with auto-retrain (%E1).
  • Page 87 Data Compression Control. Range: 136 or 138 Default: 138 In Profile: Yes Writeable: Yes Disable compression. Enable compression. V.42 Error Correction Negotiation. Range: 0, 7, 128 Default: 7 In Profile: Yes Writeable: Yes Disable negotiation and proceed with LAPM. Enable negotiation. Disable negotiation and proceed once with fallback option in S36.
  • Page 88 Connection Failure Reason Code. Range: 0-14 Default: None In Profile: No Writeable: No When a connection fails and the modem sends NO CAR- RIER, this register will contain the reason for failure. This register is read-only. Normal disconnect. Loss of carrier. V.42 negotiation failed with remote modem.
  • Page 89 Bit-Mapped Options (Result Code Message Control). Default: 0 In Profile: Yes Writeable: Yes Value Meaning CONNECT nnnn result code indicates DTE rate. CONNECT nnnn result code indicates DCE rate instead of DTE rate. Standard CONNECT nnnn result code enabled. /ARQ appended to CONNECT nnnn result code in error correc- tion mode.
  • Page 90 S201 Bit-Mapped Options (Cellular Transmit Level). Range: 0-255 Units: ASCII decimal Default: 58 (26+32) In Profile: Yes Writeable: Yes Value Meaning Initial power setting determined by @Mn. Disable compromise equalizer (:E0) Enable compromise equalizer (:E1) 6, 7 Reserved.

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