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Storing Phone Numbers 16
Dialing Stored Phone Numbers 16
Saving Settings and User Profiles 17
Default Modem Settings for PC’s 17

4 Advanced Data Communications 19

Front Panel LEDs 19

DTE Interface 19

UART 19
Serial Port 19
Serial RS-232C Cable 20

Communication Protocols and Speeds 20

Universal Protocol Compatibility 20

Error Control 21

CRC (Cyclical Redundancy Check) Error Detection 21

Data Compression 22

Run Length Encoding 22
Adaptive Frequency Encoding 22
String Coding 22

Hardware or Software Flow Control 23

Hardware CTS/RTS 23
Software XON/XOFF 23

5 Special Functions 24

Caller Number Delivery (Caller ID) 24

Caller ID Result Codes 24
Caller ID Inquiries 24
Caller ID Formatted Form Reporting 25

Distinctive Ring 25

6 AT Command Set Summaries 28

7 +MS Modulation Commands 34

Содержание Comet 3356

Страница 1: ...Comet 3356 User s Manual Version 1 0 JiH5 66 1 7 17 51 7 1 175 1 7...

Страница 2: ...nd brand names mentioned in this manual are used for plain informational purposes Trademarks and brand names are the property of their respective owners FCC Part 15 Information This device complies wi...

Страница 3: ...If possible they will notify you in advance But if advance notice isn t practical you will be notified as soon as possible You will be informed of your right to file a complaint with the FCC Your tele...

Страница 4: ...t outside North America Product information Visit our site on the World Wide Web http www zyxel com FTP Information such as ZyXEL software and ROM updates for North America can be found at this FTP ad...

Страница 5: ...Installation 4 Windows 95 Driver Installation 4 Windows 95 Dial up Networking 6 Setup for DOS Fax Modem Software 10 3 Basic Modem Operation 12 Understanding AT Commands 12 Using the Windows 95 Hyper T...

Страница 6: ...versal Protocol Compatibility 20 Error Control 21 CRC Cyclical Redundancy Check Error Detection 21 Data Compression 22 Run Length Encoding 22 Adaptive Frequency Encoding 22 String Coding 22 Hardware o...

Страница 7: ...Code Options 45 ATXn Result Code Option Table 45 9 Fax Operation 48 Modem as Fax Machine 48 ITU T T 30 Fax Protocol 48 Fax Command sets 48 Defining the Fax Command Sets 49 Flow Control 49 FAX Class 1...

Страница 8: ...yXEL modem driver diskette with Windows 95 INF file and Comet 3356 User s Manual One 1 Data Fax software for Windows environments One 1 warranty registration card One 1 ZyCD One 1 standard RS 232 cabl...

Страница 9: ...2 Introduction...

Страница 10: ...us Receiver Transmitter UART 5 Connect the telephone cord Plug one end of the supplied telephone RJ 11 cord into the LINE jack on the back of the modem Plug the other end into a telephone wall jack ju...

Страница 11: ...in a dual plug adapter that allows the modem speaker jack to drive both speakers This adapter can be found at most electronics stores Driver and Software Installation This section contains step by ste...

Страница 12: ...iver disk into your floppy drive and click OK If you have downloaded an updated INF file from ZyXEL s FTP Website or BBS click the Browse button to find the location of the updated INF file then click...

Страница 13: ...ould see a window similar to the one below 9 Click Close This completes the installation of your Comet modem driver You may now use programs such as Dial Up Networking with your ZyXEL modem Windows 95...

Страница 14: ...nd Dial up Networking 2 From the Welcome to Dial Up Networking dialogue box click Next 3 Choose a name for your connection and select your modem type from the drop down window Then click on the Next b...

Страница 15: ...nish button A new icon is created in the Dial up Networking folder 6 Right click on the new icon Then select Properties from the menu 7 Make sure your Comet modem appears in the Connect Using field Th...

Страница 16: ...you are connecting to a LAN then select Log on to network If you are logging on to a Microsoft Windows network select NetBEUI If you are logging on to a Novell network then select IPX SPX Compatible O...

Страница 17: ...nd Password are incorrect or missing type them in Click on the Connect button and your Comet will dial the number and establish a connection to your Internet Service Provider 1 1R RW WH H 7KH GHIDXOW...

Страница 18: ...will explain how 5 Look at the modem s front panel and verify the TR LED is ON If this LED is OFF your communications software is not addressing your modem at the correct COM port Make sure your softw...

Страница 19: ...mode the characters sent to the Comet by your computer are transmitted to the remote modem rather than being interpreted by the Comet as commands Using the Windows 95 Hyper Terminal Program In order...

Страница 20: ...d to answer an incoming call made from another modem Thus the high pitched noise you will hear from the speaker To abort the operation press any key or select Disconnect from the Call menu Dialing and...

Страница 21: ...ogram to dial the ZyXEL BBS If you are using a different terminal program run the program according to the instructions provided with it Start the terminal program by double clicking the Test Connecti...

Страница 22: ...e 0 You can use the ATV command to set it one way or the other as follows Command Description ATV0 Select numerical result code ATV1 Select verbose result code There are a few basic commands that do...

Страница 23: ...r modem auto answer an incoming call after two rings set S register 0 to 2 Be sure the n value is between 1 and 255 If n is set to 0 your modem will not answer incoming calls Non Volatile Memory The C...

Страница 24: ...are two profiles that can be changed by the user The following table lists the syntax for the command involved in storing recalling and viewing the profile settings AT V Views the settings in profile...

Страница 25: ...18 Basic Modem Operation...

Страница 26: ...eady for data communications AA Auto Answer Modem will automatically answer incoming calls PWR Power The modem is on and has power to operate DTE Interface DTE and DCE are terms used in data communica...

Страница 27: ...ommunication use a low capacitance cable as short as possible Communication Protocols and Speeds The most commonly used ITU T modem standards for 2 wire dial up lines are summarized in the chart below...

Страница 28: ...by detecting and re transmitting erroneous data ZyXEL modems support both MNP and V 42 error control protocols The MNP protocol was an industry de facto standard developed and licensed by Microcom In...

Страница 29: ...tokens representing the compressed format of that character and a repetition count will be sent Adaptive Frequency Encoding Adaptive frequency encoding is applied after removing repeated characters da...

Страница 30: ...and RTS are RS232 signals which must be available on your computer When the modem s transmission buffer is almost full the modem will drop CTS to signal the DTE that it cannot accept any more data Tur...

Страница 31: ...age formats sent by the phone company One is the single message format which includes date time and caller ID The other is the multiple message format which also includes the caller name as registered...

Страница 32: ...ta tag the modem will present the data in ASCII hex numbers following the MESG tag Setting AT CID 2 will cause the modem to report CND information in its ASCII coded hexadecimal raw data format The DT...

Страница 33: ...Ring Sequence 1 2s on 4s off 2 0 8s on 0 4s off 0 8s on 4s off 3 0 4s on 0 2s off 0 4s on 0 2s off 0 8s on 4s off The ring indicate RI output does not toggle on the first ring if AT SDR 0 The RI outpu...

Страница 34: ...Special Functions 27...

Страница 35: ...facturer information Report the country code Report data pump model and code revision Report the DAA code L0 L1 default L2 L3 Low speaker volume Low speaker volume Medium speaker volume High speaker V...

Страница 36: ...n 0 or 1 C0 C1 default DCD remains ON at all times DCD follows carrier state D0 D1 D2 default D3 DTR is ignored DTR drop causes the modem to return to the command state without disconnecting DTR drop...

Страница 37: ...on E0 E1 E2 default E3 Disable line quality monitor and auto retrain Enable line quality monitor and auto retrain Enable line quality monitor and fallback fall forward Enable line quality monitor and...

Страница 38: ...le line format 0 Download to flash memory at last sensed line speed 1 Download to flash memory at 38 4 kbps 2 Download to flash memory at 57 6 kbps CID 0 default CID 1 CID 2 CID CID Disable caller ID...

Страница 39: ...ransmission FDTC Report polled station capabilities FET Post page message response FED n Transmit page punctuation FHNG Call termination with status FK Session termination FLID Local ID string FLPL Do...

Страница 40: ...n VSK Buffer skid setting VSP Silence detection period voice receive VSR Sampling rate selection VSS Silence deletion tuner voice receive VTD DTMF tone reporting VTM Enable timing mark placement VTS G...

Страница 41: ...ameters will modified to reflect the Nn and S37 x settings Use of the Nn and S37 x commands is not recommended but is provided for compatibility with existing communication software S37 is not updated...

Страница 42: ...32 9600 or 4800 10 V 32 bis 14400 12000 9600 7200 or 4800 11 V 34 33600 31200 28800 26400 24000 default 21600 19200 16800 14400 12000 9600 7200 4800 or 2400 56 K56flex 56000 54000 52000 50000 48000 4...

Страница 43: ...If max_rate is within the rates supported by the selected modulation the selected rated is that specified by max_rate For example MS 10 0 1200 4800 selects V 32 bis 4800 bps fixed rate b If max_rate...

Страница 44: ...lects automode starting at V 32 bis 12000 bps same as N1S37 10 3 min_rate is an optional number specifies the lowest rate at which the modem may establish a connection The value is decimal coded in un...

Страница 45: ...n Commands 1 Robbed bit signaling generation server modem or detection client modem enabled Note that ATZ will reset the rb_signaling selection to 0 default Result Codes OK Valid subparameter string E...

Страница 46: ...MS Modulation Commands 39...

Страница 47: ...inactivity timer seconds 0 255 0 S25 Delay to DTR 1 second for sync mode 1 0 01 for otherwise 0 255 5 S26 RTS to CTS delay interval 0 01 seconds 0 255 1 S29 Flash dial modifier time 0 1 seconds 0 255...

Страница 48: ...hree characters are transmitted each time the modem processes the Backspace character S6 Wait Time for Dial Tone Before Blind Dialing Sets the length of time in seconds that the modem will wait before...

Страница 49: ...result code does not affect entry into command mode S18 Test Timer Sets the length of time in seconds that the modem conducts a test commanded by Tn before returning to the command mode If this regist...

Страница 50: ...nnection is established 100 An MNP connection is attempted and if it fails the modem disconnects 101 An MNP connection is attempted and if it fails a direct mode connection is established 110 Reserved...

Страница 51: ...r corrected link The default is for the modem to use data compression 138 Value Description 136 Execute error correction protocol with no compression 138 Execute error correction protocol with compres...

Страница 52: ...ates DCE speed 1 Append ARQ to the CONNECT result code if the protocol is other than NONE 2 CARRIER result code 3 PROTOCOL result code 4 Reserved 5 COMPRESSION result code 6 Reserved 7 Reserved Result...

Страница 53: ...21600 V V V V V 56 CARRIER 24000 V V V V V 57 CARRIER 26400 V V V V V 58 CARRIER 28800 V V V V V 59 CONNECT 16800 V V V V 61 CONNECT 21600 V V V V 62 CONNECT 24000 V V V V 63 CONNECT 26400 V V V V 64...

Страница 54: ...V V V 165 CONNECT 32000 V V V V 166 CONNECT 34000 V V V V 167 CONNECT 36000 V V V V 168 CONNECT 38000 V V V V 169 CONNECT 40000 V V V V 170 CONNECT 42000 V V V V 171 CONNECT 44000 V V V V 172 CONNECT...

Страница 55: ...ation you must connect the modem to a computer usually a PC The computer serves as the input output device for the fax function The RS 232 serial connection or the ZyXEL serial port interface connects...

Страница 56: ...rol The flow control signaling used sending a fax is CTS is used by the Comet to flow control the DTE When the modem turns CTS off the buffer inside the modem is full and cannot accept any more data T...

Страница 57: ...72 V 29 7200 bps n 73 V 17 7200 bps long n 74 V 17 7200 bps short n 96 V 29 9600 bps n 97 V 17 9600 bps long n 98 V 17 9600 bps short n 121 V 17 12000 bps long n 122 V 17 12000 bps short n 145 V 17 1...

Страница 58: ...Indicate confirmation to receive FCON Facsimile connection response FCIG Set the polled station identification FCIG Report the polled station identification FCR Capability to receive FCR Capability t...

Страница 59: ...ne FBADMUL Error rate multiplier FBUG Session message reporting FCQ Copy quality capability FCTCRTY CTC retry value FDFFC Data compression format conversion FECM Error correction mode FLNFC Page lengt...

Страница 60: ...Fax Operation 53...

Страница 61: ...generation detection capabilities b Audio Sub Configuration Available Only for Modem Models Supporting Business Audio Linear PCM coding and decoding of analog audio is accomplished with 7 2 kHz or 11...

Страница 62: ...reas if the telephone line is selected a physical connection with another station must occur before entering this mode 9 1 2 Voice Receive Mode Voice Receive Mode is entered when the DTE issues the VR...

Страница 63: ...type of connection or eventually hangs up For the Voice Audio Mode the DTE has the option of hanging up if there are indications that the remote station has not answered in voice thus implementing a d...

Страница 64: ...Audio The modem is configured to answer in Voice Audio Mode only and assumes the caller will cooperate After going off hook the voice VCON is issued no answer tone is generated and the modem is immed...

Страница 65: ...uld be used instead of the CLS command The only difference between these commands is that issuing FCLASS cancels the modem s memory of voice whereas CLS causes the modem to remain off hook even if a f...

Страница 66: ...e submodes The modem simultaneously looks for 1300 and 1100 Hz calling tones when answering and for CCITT and Bell answer tones when originating The modem can also detect dial or busy tones in any of...

Страница 67: ...er Tone Data or Fax is detected If the DTE fails to react to the code and the modem continues to detect Answer tone the code is repeated as often as once every half second DLE b Busy Sent in Voice Rec...

Страница 68: ...en reading data from the modem lately The modem inserts the DLE o at the end of the buffer thus marking the location where data was lost by the DTE The modem does not append DLE o codes to the buffer...

Страница 69: ...odem allows a small number of bytes to build up in the buffer before re enabling the transmitter to avoid repeated underruns However with the underrun condition the modem does not wait for the XOFF th...

Страница 70: ...LE E Purge DCE Buffer Sent during the transmission or reception of voice audio data by embedding the command in the voice data stream to purge the corresponding DCE buffer See the DLE EOT code DLE u I...

Страница 71: ...Mode 9 2 6 Voice Record To effect recording of a message received via a handset or microphone the DTE must configure the modem for Voice Mode CLS 8 and select the proper relay setup VLS to instruct t...

Страница 72: ...telephone before he can issue DTMF tones Once selected however the user can indeed pick up the telephone and press buttons Even if the DTE has not entered Voice Receive or Transmit Modes VTX or VRX th...

Страница 73: ...ta If the modem is in the Online Voice Command Mode the DTE can attempt a data handshake by setting CLS 0 followed by the A or D command This has the effect of beginning a Data Mode handshake accordin...

Страница 74: ...mic Speakerphone setting mu sp mic TL Audio output transmit level n 0000 7FFF VBQ Query buffer size VBS Bits per sample n 2 Select 2 bits per ADPCM valid for VSR 7200 n 4 Select 4 bits per ADPCM valid...

Страница 75: ...Telephone emulation operation is entered during Voice On line VCON mode after completing dialing ATD or answering ATA n 7 valid after Voice On line mode mutes the local handset by switching the handse...

Страница 76: ...ling rate for PCM only VSS Silence detection tuner voice receive n 0 Disables silence detection in Voice Receive Mode n 1 Least sensitive setting n 2 Midrange setting n 3 Most sensitive setting VTD DT...

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