ZyXEL 3356P User's Manual
Contents
1. For Blacklisting function enabled countries only Q O Q ie Q Q Z Q w via S TTE TE EE ETE OE Extended Result Code Options Table TV1 ONNECT 1200 NECT 1200 EC ONNECT 2400 NECT 2400 EC NECT 4800 NECT 4800 EC NECT 9600 NECT 9600 EC NECT 14400 NECT 14400 EC NECT 19200 NECT 19200 EC NECT 57600 NNECT 57600 EC NECT 7200 NNECT 7200 EC NECT 12000 ONNECT 12000 EC CONNECT 38400 Q Q e Q O io Z Q O O Q e O Q e S N Q 22 Status Registers amp Result Codes v0 CONNECT 38400EC N C N NECT 33600 C C 0 0 0 0 O 3 0 O 3 0 ON ON ON CON CON 0 ON ON ON K ON ON k ON C N N N N N N N N N N N NECT 48000 ON k 0 O k 0 O k ON 87 _ CONNECT 115200 87 _ CONNECTIIS0EC 7 EC is replaced by one of the following symbols V 42bis V 42 error control and V 42bis data compression V 42 V 42 error control only MNPS5 MNP 4 error control and MNP 5 data compression 28 40 40 55 55 156 156 Erz 58 58 59 59 60 60 70 70 n ra Sl IR 72 73 CONNECT38000 73 aa 74 75 75 76 76 IT IT 8 En 79 En 80 80 si 81 82 82 86 86 28 40 40 55 55 56 56 57 57 58 58 59 59 60 60 72. the modem s error correction and data compression Ignore dial tone before proceeding dialing check busy tone after making dialing Display connect message and the modem s data rate and an indication of the modem s error correction and data compression Check dial tone and busy tone SE CONNECT or 1 for all speeds Check dial tone and busy tone Recall stored profile 14 AT Command Set Summaries pe O N SI Function amp Description ZO Reset and recall user profile 0 Either ZO or Z1 restores the same single profile Manufacturer default Extended AT amp Command Set Command Options Function amp Description amp Cn Data carrier detect option State of carrier from remote modem is ignored DCD circuit is always on amp CI DCD turns on when the remote modem s carrier signal is detected and off when the carrier signal is not detected Data Terminal Ready DTR option DTR ignored Go to command mode on on to off DTR transition Hang up and go to command mode on on to off DTR transition Auto answer is disabled if DTR is low V 22bis guard tone option amp G1 550Hzguardtone Setlocal flow contol Pulse dialing make break ratio selection Make 39 Break 61 international version Default Make 33 Break 67 for use in 20 pps Japanese version Make 33 Break 67 international version Make 33 Break 67 for use in 10 pps Japanese version Default A
3. to those who need the modem to perform special tasks AT commands can also be used to control the fax modem manually Required Equipment Make sure you have the additional equipment below before proceeding with Installation e An IBM compatible PC or notebook with PCMCIA type II slot and 386SX or better CPU e PCMCIA Socket Service and Card Service drivers These drivers are usually included with the computer If not check with your computer dealer e A telephone line with RJ 11 connector e Data and or Fax communication software Introduction 1 2 Introduction 2 Installation This chapter describes installation for Windows 95 Windows 3 1 Windows for Workgroups and DOS You can jump directly to the installation procedure for your particular environment Windows 95 1 Insert the Comet into a free PCMCIA slot 2 Power on your computer and start Windows 95 3 Windows 95 will display the New Hardware Found dialog box Select Driver from disk provided by hardware manufacturer and click OK 4 Enter the path A and insert the Fax Modem PC Card INF file disk Windows 95 will install the modem driver autmatically 5 Connect the FAX MODEM interface cable and hook up the RJ 11 plug to the telephone line outlet 6 Restart Windows 95 and the new settings will take affect Windows 3 1 amp Windows for Workgroups Make sure Card Service and Socket Service drivers have been installed in your computer If the driver
4. Hyper Terminal Program In order to issue an AT command statement you first need to run a communication program such as the Microsoft Windows Hyper Terminal program This program provides a simple method to manually enter AT commands so you can do such things as customize the settings of your Comet or store phone numbers you will commonly connect to Once the Comet is connected to your computer s serial port and telephone line Open the Windows 95 Accessories program group and open the Hyper Terminal Program The program will prompt you for a name and Icon to use for your new connection Type the name Test Connection and press lt Enter gt Next you will be prompted for country information area code and phone number and the device used to make the connection For this test purpose do not enter a phone number simply choose the COM port your Comet is connected to from the Connect Using list Click OK when finished Basic Modem Operation 5 The next window sets the COM port settings The settings used for the Comet should be as follows 115200 Flow Control ardware Click OK when finished After you have done this save your new connection by selecting Save from the File menu and click OK A new connection icon will be added to your Hyper Terminal folder You are now ready to start entering AT commands In the terminal window type AT lt Enter gt Comet respon
5. in its facilities equipment operations or procedures that could affect the proper functioning of your equipment If they do you will be notified in advance to give you an opportunity to maintain uninterrupted telephone service If you experience trouble with this telephone equipment please contact the Address and Phone number listed in the warranty card 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 the equipment is not malfunctioning The user is not authorized to repair or modify the equipment This equipment may not be used on coin service provided by the telephone company Connection to party lines is subject to state tariffs You will find also this information on a sticker on the bottom of the modems case The modem is connected to a public switched line using a USOC Universal Service Order Code RJ 11C modular jack Contacting ZyXEL If you have questions about your ZyXEL product or desire assistance contact ZyXEL Communications Corporation in one of the following ways e Phone In North America call between 8 00 AM and 5 00 PM PST at 714 693 0808 iii iv Outside North America you can dial 886 3 5783942 EXT 252 between 8 00AM and 5 00PM Taiwan time GMT 8 00 Fax ZyXEL in North America 714 693 8811 or Taiwan 886 3 5782439 E mail e _ Sales inquiries sales zy
6. mode If this fails the modem attempts to connect in MNP mode If this N4 0 fails the modem connects in buffer mode V 42 or disconnect The modem attempts to connect in V 42 mode If this Pr fails the call will be disconnected Local flow control options Disable flow control same as AT amp KO XON XOFF software flow control same as AT amp K4 RTS CTS hardware flow control same as AT amp K3 Set inactive timer for buffer mode only Disable inactive timer Enable inactive timer Length in minutes 255 Protocol result codes Disable protocol result code appended to DCE speed Enable protocol result code appended to DCE speed Manufacturer default Extended AT Command Set View numbers in blacklist If blacklisting is in effect this command displays the numbers for which the last call attempted in the past two hours failed The ERROR result code appears in the countries that do not require blacklisting 16 AT Command Set Summaries Function amp Description Cn Data compression control CO No data compression V 42bis MNP 5 data compression enabled Manufacturer default Extended AT Command Set Cn Ps Data calling tone options Disable data calling tone Cl Enable data calling tone the freq is 1 300 Hz with a cadence of 0 5 sec Ba ON and 2 sec OFF Manufacturer default AT Command Set Summaries 17 18 AT Command Set Summaries 5 Status Registers amp
7. no fallback When originating or answering start handshaking only at the communication standard specified by S37 register and ATBn During handshake fallback to a lower speed may occur Goon line o0 Return modem to a previously established state return to data mode Begin an equalizer retrain sequence then return to on line state 919 Force modem to a new rate defined by user New rates are defined in S62 register Result code display options QO Result code enabled Result code disabled Enable tone dialing Result code form Display result code in numeric form see also the result code options t ble CONNECT result ade reports DTE speed Disable protocol result codes see also the Result Code Options Table CONNECT result code reports DTE speed Enable protocol result codes CONNECT result code reports DCE speed Enable protocol result codes P T Xn Display CONNECT or 1 for all speeds Ignore dial tone and busy tone detection Display connect message and the modem s data rate and an indication of the modem s error correction and data compression Ignore dial tone and busy tone detection Display connect message and the modem s data rate and an indication of the modem s error correction and data compression Z S pa i Ps Check dial tone before proceeding dialing ignore busy tone detection Display connect message and the modem s data rate and an indication of
8. 0 70 71 71 72 72 73 73 74 74 75 73 76 76 77 77 78 78 79 79 80 80 81 81 82 82 87 87 Status Registers amp Result Codes 23 MNP4 MNP 4 error control only NoEC No error control and data control protocols 24 Status Registers amp Result Codes
9. Comet 3356P User s Manual ZyXEL ACCESSING THE INTERNET AND INTRANET Limited Warranty ZyXEL warrants to the original end user purchaser that this product is free from any defects in materials or workmanship for a period of up to two 2 years from the date of purchase During the warranty period and upon proof of purchase should the product have indications of failure due to faulty workmanship and or materials ZyXEL will at its option repair or replace the defective products or components without charge for either parts or labor and to whatever extent it shall deem necessary to restore the product or components to proper operating condition Any replacement will consist of a new or remanufactured functionally equivalent product of equal value and will be solely at the option of ZyXEL This warranty shall not apply if the product is modified misused tampered with damaged by an act of God or subjected to abnormal working conditions Note Repair or replacement as provided under this warranty is the exclusive remedy of the purchaser This warranty is in lieu of all other warranties express or implied including any implied warranty of merchantability or fitness for a particular use or purpose ZyXEL shall in no event be held liable for indirect or consequential damages of any kind or character to the purchaser Acknowledgments The trademarks and brand names mentioned in this manual are used for plain informational purposes Tr
10. Result Codes S0 0 255 Set the number of the rings required before the modem 000 automatically answers a call Set S0 0 to disable auto answer mode S1 0 255 Count the incoming rings and store the value to this register 000 The value of this register is incremented with each ring If no rings occur over an 8 sec interval this register is cleared User can read but should not change this value S2 0 255 S2 holds the decimal value of the ASCII character used as the escape character The default value 043 corresponds to an ASCII character A value of 128 to 255 disables the escape process i e no escape character will be recognized S3 0 127 Hold the decimal value of the Carriage Return lt CR gt 013 character used as the command line and result code terminator Pertain to asynchronous operation only S4 0 127 Hold the decimal value of the character recognized as a line 01 feed The line feed control character is output after the carriage return control character if verbose result code are used S5 0 32 Hold the decimal value of the character recognized as a 00 127 backspace The modem will not recognize the backspace character if this register is set to a value greater than 32 5 5 0 8 S6 Set the length of time in seconds that the modem must wait minimum 2 seconds even if the value is less than 2 after going off hook before dialing the first digit of the telephone 2 65 2 number 2 65 For inte
11. ademarks and brand names are the property of their respective owners FCC Part 15 Information This device complies with Part 15 of FCC rules Operation is subject to the following two conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesired operations This equipment has been tested and found to comply with the limits for a CLASS B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and the receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help ii Changes or modific
12. at corresponds to the number of rings after which your modem answers an incoming call Disabling Auto Answer ATS0 0 Manually Answering a Call ATA Take modem off hook ATHI1 Hang up modem on hook ATHO Manually Disconnecting a Call ATH Making Your First Connection Use the connection you created 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 double clicking the Test Connection icon When the terminal window appears enter the dial command with ZyXEL s BBS 88635776274 as the phone number Type ATDT lt Phone number gt lt enter gt The modem will go off hook dial the number and after a few seconds of negotiation tones you should be connected to our BBS You will receive a login message asking for your name For the purposes of this example you need not continue Just click the disconnect icon on the toolbar Quick Tips when issuing AT Commands e The ENTER or RETURN key must be pressed to execute a command Basic Modem Operation 7 e Multiple AT commands can be combined into one line For example AT amp D2 and AT amp KO can be combined into one line AT amp D2 amp KO The Comet processes commands from left to right The AT command that appears to the right might over write the command to the left if they are trying to accomplish tasks or set modes that cannot coe
13. ations not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Shielded RS 232 cables are required to be used to ensure compliance with FCC Part 15 and it is the responsibility of the user to provide and use shielded RS 232 cables FCC Requirements This equipment complies with Part 68 of the FCC Rules On the base unit of this equipment is a label that contains among other information the FCC Registration Number and the Ringer Equivalence Number REN for this equipment IF REQUESTED THIS INFORMATION MUST BE GIVEN TO THE TELEPHONE COMPANY The REN is useful to determine the quantity of the devices you may connect to your telephone line and still have all of those devices ring when your telephone number is called In most but not all areas the sum of the RENs of all devices connected to one line should not exceed five 5 0 To be certain of the number of devices you may connect to your line as determined by the total RENs you should contact your local telephone company to determine the maximum REN for your calling area If your equipment causes harm to the telephone network the telephone company may discontinue your service temporarily 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 telephone company may make changes
14. ck the Next button Click the Change button to change the modem type Click the Have Disk button Insert the INF file disk into the floppy drive Enter the path A and click the OK button Click OK to accept the modem type and then click finish 4 Installation 3 Basic Modem Operation This chapter covers the basic commands and techniques involved in modem operation In many cases this is the only information you will need in order to get your Comet up and running with communication software and to start making connections with your Comet Understanding AT Commands The Comet communicates asynchronously with computers using AT commands AT commands are used to configure and control the Comet Commands are usually sent to the modem by way of communication software but can also be entered manually with the computer keyboard Command statements must be written in a specific form in order for the Comet to recognize them A command statement always begins with the letters AT or at It is then followed by one or more commands and the lt Enter gt key AT commands can only be issued when the Comet is in command mode or off line Once the Comet has established a connection with another modem it is said to be on line or 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
15. d was invalid The Comet also provides result codes that show e Whether or not a Dial Tone was detected when the modem originated a call e Ifa busy signal was detected when the modem originated a call e The speed protocol and error control data compression method used e If your modem has detected an incoming ring Result codes can originate from any of eight result code sets The ATXn and ATWn command lets you choose which set of result codes your modem uses By default your modem uses result codes equivalent to the ATX4 and ATW2 command Viewing S Register Values Status registers or S registers contain values that determine the 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 example to view the value of S register SO which controls auto answering type ATSO and press Enter The modem responds with a three digit character showing the value of this register followed by OK A value of 002 for example means your modem will auto answer incoming calls after the second ring Changing S Register Values You can use the ATSr n command to change the value of an S register r For example to have your 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 incomin
16. ds OK This confirms that the modem and your computer are communicating correctly To test the telephone line connection issue the manual answer command Type ATA lt Enter gt The Comet will pick up the phone line and try to communicate 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 select Disconnect from the Call menu Dialing and Answering Techniques Depending on what communications software you use to make modem connections you may not have as much control of how the modem dials the telephone number This section shows some useful examples of the AT commands used for dialing and answering operations The command characters specific to each function are shown in bold type Dialing using the ATD Command Touch Tone Dialing ATDT 555 1212 Pulse Dialing ATDP 555 1212 Tone and Pulse Dialing ATDP 555 1212 WT 24 6 Basic Modem Operation Pausing During Dialing ATDT 9 555 1212 Dialing Without Waiting for Dial Tone ATXOD 555 1212 Originating a call using an Answer Tone ATDT 555 1212 R Redialing the Last Number Called ATDL Waiting for Five Seconds of Silence ATDT 800 555 1212 123456 1 714 555 1212 Transferring a Call using flash hook ATDT 2468 Auto Answer and Hook Controls Enabling Auto Answer ATS0 n Note In this example n is a number from 1 to 255 th
17. ent Japanese version only Range 6 dBm to 15 dBm Default 15 dBm Result Code Options Result Code Options Table ATVI 1 CONNECT RING NO CARRIER ERROR CONNECT 1200 EC NO DIAL TONE USY O ANSWER INNECT 2400 EC ONNECT 4800 EC ONNECT 9600 EC ONNECT 14400 EC NECT 19200 EC NECT 57600 EC NECT 7200 EC NECT 12000 EC NECT 38400 EC NECT 300 EC NECT 21600 EC NECT 24000 EC ONNECT 26400 EC O elz a O N Q v Q T Q O oo a O Z Q e Q O Z ailalalo OIOJO O 6 BEE 8 u 12 CONNECT 9600EC 13 Er i8 Ei z al z Q Status Registers amp Result Codes 21 TV1 58 NECT 28800 EC 59 CONNECT 31200 EC 6 NECT 33600 EC 170 NECT 32000 EC no NECT 34000 EC 172 NECT 36000 EC 1723 NECT 38000 EC 174 NECT 40000 EC 755 NECT 42000 EC 16 NECT 44000 EC 7 78 79 80 81 82 86 87 88 58 59 60 70 71 72 73 74 75 76 77 NNECT 46000 EC 78 79 80 81 82 87 90 O O Z alalalalalaialia O 0 0 90 O0 Oo0 o CO Q io NECT 48000 EC NNECT 50000 EC NECT 52000 EC ONNECT 54000 EC ONNECT 56000 EC ONNECT 16800 EC NNECT 115200 EC ELAYED 89 BLACKLISTED 90 BLACKLIS FULL DTE DCE speed DCE speed line speed DTE speed EC only appears when the Extended Result Code options are enabled
18. ettings as the power on profile The following table lists the syntax for the command involved in storing recalling and viewing the profile settings AT amp V Views the current settings and the stored phone numbers AT amp W Stores the current settings in user profile Resets the current settings with the settings in profile AT amp F Resets the current settings with the factory settings Default Modem Settings for PC s The Comet factory settings are configured for operation with PC type computers and communications software In most cases no additional settings will be required The following are some of the default settings that are used for operation with PC computers and software AT Description Command El Echoes command characters Carrier detect follows remote carrier Modem disconnects on DTR on to off transition N3 Use both V 42 and MNP error correction 10 Basic Modem Operation AT Description Command Use both V 42bis and MNP 5 data compression Basic Modem Operation 11 12 Basic Modem Operation 4 AT Command Set Summaries Basic AT Command Set Command Function amp Description Al S Re execute the last command string Oo Terminate the current connection attempt when entered in handshaking state Line modulation options Select V 22 mode for 1200 bps connection Select Bell 212A for 1200 bps connection Select V 23 1200 bps for receiving 75 bps for transmitting in originate mode 75 bps fo
19. g calls Non Volatile Memory The Comet has memory set aside for storing user information such as frequently used phone numbers and default command settings This section covers the topics of storing phone numbers and saving default settings in the power on profile Storing Phone Numbers The AT command to store a phone number is in the format AT amp Zs n Basic Modem Operation 9 The s is a number from 0 to 3 that represents the location in memory that the phone number is to be stored and the n is the phone number itself Example To store the number 1 714 555 1212 in memory location 2 type AT amp Z2 17145551212 lt Enter gt You can store up to 4 telephone numbers Dialing Stored Phone Numbers The AT command syntax used to dial a store number is ATDS n The n is the memory location of the stored number you want to dial Note As a general rule when a letter in an AT command definition is shown in italic type the letter is not to be entered as part of the command but rather is representative of a number or string expected as input For example The letter S in the ATDS n command is actually typed unlike the s in the AT amp Zs n command which represents a number Saving Settings and User Profiles There are some cases where you may wish to save the settings you have made as the default settings that are recalled when the Comet is powered up The AT amp W command stores the current s
20. ing Settings and User Profiles Default Modem Settings for PC s 4 AT Command Set Summaries 5 vi Basic AT Command Set Extended AT amp Command Set Extended AT Command Set Extended AT Command Set Extended AT Command Set Status Registers amp Result Codes Result Code Options 10 10 13 13 15 16 16 17 19 21 1 Introduction Congratulations on the purchase of your Comet 3356P Type II PCMCIA card one of ZyXEL s premier high performance products The Comet is world renown for its ability to maintain ultra high speeds and clear quality connections while communicating around the globe Unpacking Your Modem Before you proceed check all items you received with your modem against this list to make sure nothing is missing The complete package should include e One Comet 3356P e One detachable interface cable with RJ 11 cable and plug e One FAX amp Data Communication software package e One INF file disk for Windows 95 and Windows NT 4 x Hardware Overview The Comet is an intelligent high speed fax nodem which can be used as both a send receive fax machine and a data modem When connecting to another modem fax the modem automatically negotiates the fastest speed possible The PC Card FAX MODEM is designed to work with most of the popular fax modem communication software packages Some software packages will control and configure the fax modem for you automatically however they are usually only useful
21. r receiving and 1200 bps for transmitting in answer mode Select V 23 75 bps for receiving 1200 bps for transmitting in originate mode 1200 me re for receiving and 75 bps for transmitting in answer mode Select V 21 for 300 EE connection Select Bell 103 for 300 Select Bell 103 for 300 bps connection connection Dial command beginning the dialing sequence The string n number and modifiers listed as follows is entered after the D command Re dial last number Should be the first character following ATD ignored otherwise Neree dial Originate call in answer mode go on line in answer mode Dial the phone number stored in NVRAM at location n n 0 1 2 3 DTMF tone dial Wait for second dial tone The modem waits for the second dial tone before processing the dial string Pause Cause the modem to pause for a time before processing the next character in the dial string specified by S8 register Hook Flash for call transfer Cause the modem to go on hook for 0 5 second then return to off hook Return to command state after T a number without disconnecting the call AT command echo options Echo disabled en telephone AT Command Set Summaries 13 Function amp Description Ee Speaker always on IM Speaker off during dialing and on until carrier present Select negotiate handshake When originating or answering handshake only at the communication rate specified by S37 register and ATBn and
22. rnational version 0 S7 Set the time in seconds that the modem must wait before BE hanging up because carrier is not detected For international version For Japanese version S8 0 65 Set the time in seconds that the modem must pause when 002 E the dial modifier is encountered in the dial string pe S10 1 255 Set the length of time in tenths of a second that the modem 020 BT waits before hanging up after a loss of carrier ea Sll 50 150 DTMF duration and inter digit delay Set the duration and 095 spacing in mini seconds in DTMF touch tine dialing eee 2 S12 0 255 Define the maximum period in 2 hundredths of a second 050 allowed between consecutive asynchronous escape character Er plus for the escape sequence to be considered valid p 0 255 V 34 modulation en disabler 0 disabled 1 255 enabled S30 0 90 Inactivity timer Set the length of time in minutes that the 000 modem counts when there is no data flow in or out the DTE serial port A connection is disengaged when the counter reaches the preset value Set S30 0 to disable the inactivity timer For buffer mode only Negotiation fallback options o Status Registers amp Result Codes 19 Default Hang up Fall back to an async connection Attempt MNP mode If MNP fails hang up Attempt MNP mode If MNP fails fallback to async connection 0 2 1 3 4 6 5 7 7 5 Attempt a 9600 bps connection 0 Attempt a 12000 bp
23. s connection Attempt a 14400 bps connection Attempt a 16800 bps connection wN 1 Attempt a 19200 bps connection 14 Attempt a 21600 bps connection Attempt a 24000 bps connection Attempt a 26400 bps connection Attempt a 28800 bps connection Attempt a 31200 bps connection 19 Attempt a 33600 bps connection 56K Dial Line Rate Options Set to maximum downstream 001 speed at which the modem attempts to connect t 10 14 S48 7 128 LAPM error control and feature negotiation S48 7 Negotiation enabled S48 128 Negotiation disabled Force immediate fallback options specified in S36 S36 0 or 2 and S48 7 LAPM or hang up 20 Status Registers amp Result Codes 7 14 had 0 6 hy he Eo 10 14 2 S Function amp Description S36 0 or 2 and S48 128 Don t use S36 1 or 3 and S48 7 LAPM or async S36 1 or 3 and S48 128 Async S36 4 or 6 and S48 7 LAPM MNP or hang up S36 4 or 6 and S48 128 MNP or hang up S36 5 or 7 and S48 7 LAPM MNP or async S36 5 or 7 and S48 128 MNP or hang up S89 0 5 60 Sleep mode control timer Specify the number of seconds of inactivity no character sent from DTE no RING in the off line command state before the modem places itself into standby mode A value of 0 prevents standby mode If a number between 1 and 4 is entered for this register it will set the value to 5 S91 6 15 Transmitting power level adjustm
24. s have not been installed contact your computer dealer 1 Insert the Comet into a free PCMCIA slot 2 Power on your computer and start Windows 3 If you hear an alert sound skip to step 5 If not continue 4 Use a PCMCIA utility to set your COM port and IRQ information A PCMCIA utility should have been included with your computer If not contact your dealer 5 Install the FAX MODEM application program that came with your Comet 6 Connect the FAX MODEM interface cable and connect the RJ 11 cable to the telephone line outlet 7 Restart Windows and the new settings will take affect DOS Make sure Card and Socket Service drivers have been installed in your computer If the drivers have not been installed contact your computer dealer 1 Insert the Comet into a free PCMCIA slot Installation 3 Power on your computer If you hear an alert sound skip to step 5 If not continue Use a PCMCIA utility to set your COM port and IRQ information A PCMCIA utility should have been included with your computer If not contact your dealer Install the FAX MODEM application program that came with your Comet Connect the FAX MODEM interface cable and connect the RJ 11 cable to the telephone line outlet Windows NT 4 0 1 en EDO eS ER ED Insert the Comet into a free PCMCIA slot Power on your computer and start Windows Double click the Modem Icon in the Control Panel dialogue box From the Install New Modem dialogue box cki
25. sync communications mode options Error control mode buffered same as AT N3 9 amp Q8 MNP error control mode If an MNP error control protocol is not established the modem will fallback according to the current setting in ee S36 register amp Q V 42 or MNP error control mode If neither error control protocol is i established the modem will fallback according to the current setting in S36 register _ Data Set Ready DSR option DSR on during handshake and on line off in test mode or idle mode Self test commands Terminate any test in progress Local analog loopback test Local digital loopback LDL test Remote digital loopback test amp V View active file and stored phone numbers AT Command Set Summaries 15 Store telephone number n 0 to 3 x lt string gt see also the dial modifier in ATDn command The maximum number of digits per string is 40 Manufacturer default Extended AT Command Set Options Function amp Description Constant DTE speed option DCE and DTE rates are independent J1 Force the DTE interface speed to the DCE connection rate line speed Be after on line Error control mode options Buffered mode no error control flow control is allowed Direct mode no error control no flow control is allowed MNP reliable mode If MNP 2 4 error control establishment fails the modem disconnects N3 V 42 MNP or buffer mode The modem attempts to connect in V 42
26. xel com in North America sales zyxel com tw outside North America e Technical support support zyxel com in North America support zyxel com tw 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 address ftp zyxel com For European versions and related files use the address ftp zyxel co at Postal Service You can send written communications at the following address ZyXEL Communications Corporation 6 Innovation Road II Science Based Industrial Park Hsinchu Taiwan 300 ROC or ZyXEL Communications Inc 4920 E La Palma Avenue Anaheim CA92807 USA Table of Contents Limited Warranty FCC Part 15 Information FCC Requirements Contacting ZyXEL 1 Introduction Unpacking Your Modem Hardware Overview Required Equipment 2 Installation Windows 95 Windows 3 1 amp Windows for Workgroups DOS Windows NT 4 0 3 Basic Modem Operation Understanding AT Commands Using the Windows 95 Hyper Terminal Program Dialing and Answering Techniques Dialing using the ATD Command Auto Answer and Hook Controls Making Your First Connection Quick Tips when issuing AT Commands Modem Result Codes Viewing S Register Values Changing S Register Values Non Volatile Memory mu en Rw QQ U ur O COON N ANN ua Storing Phone Numbers Dialing Stored Phone Numbers Sav
27. xist e Ifyou see duplicated characters for each one you type your Comet and software both have their echo feature turned The Comet command echo state is switched off using ATEO and on using ATEI default To eliminate the double characters turn off the software s command echo rather than using the ATEO command If you see no characters in your terminal window when you type the modem s echo setting is probably set to off In this case issue the ATE command e When a command is successfully issued and accepted a modem responds with what is called a Result Code The Comet supports both verbose result 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 ATVO Select numerical result code ATVI Select verbose result code There are a few basic commands that do not require the AT command prefix These are as follows Al Repeats the last issued AT command once lt any key gt Terminates the current connection attempt if pressed Bela in Data Mode Returns modem to Command Mode The Comet supports several groups of AT commands 8 Basic Modem Operation Modem Result Codes When you execute or try to execute an AT command your modem sends a result code to let you know whether the command was executed An OK result code means the AT command you sent was executed If you receive an ERROR code it means the comman
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