ZyXEL Communications COMET 336 User Manual Download

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Comet 336

User’s Manual

March 97

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Summary of Contents for COMET 336

Page 1: ...Comet 336 User s Manual March 97 JiH5 02 06 2 7 0 11 80...

Page 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...

Page 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...

Page 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...

Page 5: ...and Software Installation 4 Windows 95 Driver Installation 4 Windows 95 Dial up Networking 6 Setup for DOS Fax Modem Software 11 3 Basic Modem Operation 14 Understanding AT Commands 14 Using the Wind...

Page 6: ...Serial RS 232C Cable 23 Communication Protocols and Speeds 23 Universal Protocol Compatibility 24 Error Control 24 CRC Cyclical Redundancy Check Error Detection 25 Data Compression 25 Run Length Enco...

Page 7: ...Definitions 36 Result Code Options 39 ATXn Result Code Option Table 39 Result Code Field Descriptions 40 8 Fax Operation 42 Modem as Fax Machine 42 ITU T T 30 Fax Protocol 42 Fax Command sets 42 Defi...

Page 8: ...User s Manual One 1 ZyXEL modem driver diskette with Windows 95 INF file One 1 Data Fax software for Windows environments One 1 warranty registration card One 1 Zy CD One 1 standard RS 232 cable Cont...

Page 9: ...2 Introduction...

Page 10: ...eceiver 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 just a...

Page 11: ...two speakers obtain 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 co...

Page 12: ...Windows 95 driver disk into your floppy drive and click OK If you have downloaded an updated INF file from ZyXEL s FTP Website or BBS use Browse to find the location of the updated INF file click Open...

Page 13: ...ck Close This completes the installation of your Comet 336 modem driver You may now use programs such as Dial Up Networking with your ZyXEL modem Windows 95 Dial up Networking If you have not installe...

Page 14: ...uble click on the Make New Connection icon 3 Choose a name for your connection and select your modem type from the drop down window Then click on the Next button 4 Enter the phone number to your ISP o...

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

Page 16: ...n above If you are logging on to an Internet connection then select TCP IP If you are connecting to a LAN then select Login to Network If you are logging on to a Microsoft Windows network select NetBE...

Page 17: ...ign an IP to you when you log in 8 Click the Specify name server address radio button and enter your primary and secondary DNS Domain Name Server IP In most cases you should leave Use IP header compre...

Page 18: ...ith the software 2 If your communications software requires you to select a modem and the ZyXEL Comet 336 is not one of the choices you can either check our web site for the driver or select the ZyXEL...

Page 19: ...llowed by an OK result code If you do not see an OK result code turn the modem off and on then repeat this step 7 Type ATDT number and press Enter where number is your modem s telephone number You sho...

Page 20: ...Installation 13...

Page 21: ...in data mode In this 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 Termi...

Page 22: ...mmunicate Normally this command is only used 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 selec...

Page 23: ...ted in the Hyper Terminal program 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 doubl...

Page 24: ...codes i e OK and numerical result codes i 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 co...

Page 25: ...modem s operating characteristics Whenever you send an AT command to your modem you are actually changing the value of an S register You can use the Sr command to view the value of S register r For ex...

Page 26: ...H DPSOH 7KH OHWWHU 6 LQ WKH 7 6 Q FRPPDQG LV DFWXDOO W SHG XQOLNH WKH V LQ WKH 7 V Q FRPPDQG ZKLFK UHSUHVHQWV D QXPEHU Saving Settings and User Profiles There are some cases where you may wish to sav...

Page 27: ...t Modem Settings for PC s The Comet 336 factory settings are configured for operation with PC type computers and communications software In most cases no additional settings will be required The follo...

Page 28: ...Basic Modem Operation 21...

Page 29: ...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 communication...

Page 30: ...holes connectors Serial RS 232C Cable A serial RS 232C cable is used to connect a DTE port to a DCE port Do not use a null modem cable which may be used to connect two DTEs directly with each other t...

Page 31: ...0 4 DPSK 1800 V 23 1200 75 1200 75 FSK V 23 600 75 600 75 FSK V 22bis 2 400 600 16 QAM 1200 Orig 2400 Ans V 22 1 200 600 4 DPSK 1200 Orig 2400 Ans V 21 300 300 FSK BELL 103 300 300 FSK G3 FAX Implemen...

Page 32: ...on efficiency of V 42bis is generally higher than that of MNP5 In some cases it can be 50 to 100 higher and in other cases it is just slightly higher In general it is about 50 more efficient Run Lengt...

Page 33: ...3 Sets CTS RTS flow control H4 Sets XON XOFF flow control Hardware CTS RTS This is a bi directional flow control where CTS and RTS are RS232 signals which must be available on your computer When the m...

Page 34: ...iod as part of the call progress ring message There are two kinds of caller information message formats sent by the phone company One is the single message format which includes date time and caller I...

Page 35: ...company for availability With this service you can have several phone numbers assigned to the same phone line The phone company will send a different type of ring signal for each phone number being ca...

Page 36: ...Special Functions 29...

Page 37: ...a time specified in S8 Remaining digits will be dialed as in band DTMF Return to command state after dialing Hook flash Wait for a 5 second silence before proceeding R Reverse handshake go on line in...

Page 38: ...rofile n n 2 Reset modem and load factory settings or Basic command summary help or Extended AT command summary help or Extended AT command summary help Extended AT Command Set Command Options Functio...

Page 39: ...4 V 32 9600 7200T 4800 N5 V 32 4800 N12 V 23 1200 N14 V 22bis 2400 1200 N15 V 22 1200 N16 V 21 300 N17 V 32bis 14400 12000 9600 7200 4800 N18 V 32bis 12000 9600 7200 4800 N19 V 32bis 7200 4800 N24 BEL...

Page 40: ...ming clock source selection X0 Modem provides synchronous transmit clock signal Internal clock to pin 15 of EIA 232D X1 Terminal provides synchronous transmit clock signal External clock from pin 24 o...

Page 41: ...E N 2 Enable CID w unformatted presentation to the DTE SDR n N 0 Disables Distinctive Ring Any valid ring detected is reported as RING default N 1 Enables Distinctive Ring Type 1 N 2 Enables Distincti...

Page 42: ...AT Command Set Summaries 35...

Page 43: ...ng up 1 10 seconds 1 255 14 S11 DTMF Touch tone tone duration 1 10 seconds 50 255 95 S12 Escape guard time 1 50 seconds 0 255 50 S18 Test timer seconds 0 255 0 S25 Delay to DTR 1 second for sync mode...

Page 44: ...nd dialing This operation however may be affected by some ATX options according to country restrictions The wait for Dial Tone call progress feature W dial modifier in the dial string will override th...

Page 45: ...Note that sending of the OK 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...

Page 46: ...e disconnecting If time expires before all data is sent the NO CARRIER result code will be issued to indicate that data has been lost If all data is transmitted prior to time out the response to the H...

Page 47: ...8400 V 32bis 14400 V 42bis cr lf CONNECT DCE_Speed Error_Code cr lf Example CONNECT 14400 ARQ CONNECT DCE _Speed Error_Code Error_Control Example CONNECT 14400 ARQ MNP5 Data compression included SREJ...

Page 48: ...Status Registers Result Codes 41...

Page 49: ...n 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 the...

Page 50: ...e flow control signaling used sending a fax is CTS is used by the Comet 336 to flow control the DTE When the modem turns CTS off the buffer inside the modem is full and cannot accept any more data The...

Page 51: ...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...

Page 52: ...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...

Page 53: ...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...

Page 54: ...Fax Operation 47...

Page 55: ...e 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 1...

Page 56: ...reas if the telephone line is selected a physical connection with another station must occur before entering this mode 7 1 2 Voice Receive Mode Voice Receive Mode is entered when the DTE issues the VR...

Page 57: ...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...

Page 58: ...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...

Page 59: ...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...

Page 60: ...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...

Page 61: ...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...

Page 62: ...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...

Page 63: ...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...

Page 64: ...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...

Page 65: ...Mode 7 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...

Page 66: ...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...

Page 67: ...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...

Page 68: ...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...

Page 69: ...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...

Page 70: ...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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