ZyXEL U-336E User Manual

ZyXEL U-336E Manual

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  • ZyXEL U-336E | User Manual - Page 1
    U-336E User's Manual Version 1.0 (Mar. 1997) ZyXEL ACCESSING INTERNET & INTRANET
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    be held liable for indirect or consequential damages of any kind or character to the purchaser. To obtain the services of this warranty, please contact ZyXEL's Service Center, refer to the separate Warranty Card for your Return Material Authorization number (RMA). Products must be returned Postage
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    any license under its patent rights nor the patents rights of others. ZyXEL further reserves the right to make changes in any products described herein change without notice. Acknowledgments Trademarks mentioned in this manual are used for informational purposes only. Trademarks are properties
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    and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. If this equipment does cause harmful interference to radio/television reception, which can be determined by turning the
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    means of a certified connector assembly. The customer should be aware that the compliance with the above conditions may not prevent degradation of service in some situations. Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier. Any
  • ZyXEL U-336E | User Manual - Page 6
    time (GMT +8:00). • Fax: ZyXEL in North America: (714) 693-8811 or Taiwan: +886-3-5782439 • E-mail: • Sales inquiries: [email protected] in North America [email protected] outside North America. • Technical support: [email protected] in North America. [email protected] outside North America
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    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
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    Contacting ZyXEL vi 1 Introduction 1 Unpacking Your Modem 1 Enclosed Equipment 1 Required Equipment 2 Becoming a Registered Owner 2 Modem Rear Panel Markings 9 Modem Connection 10 Powering Up 11 3 Basic Modem Operation 13 Understanding AT Commands 13 Using the Windows 95 Hyper Terminal Program 13
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    Profiles 22 Helpful Hints for PC Computers 22 Default Modem Settings for PC's 23 ZyXEL Serial/Parallel I/O Card 24 Helpful Hints for Mac Modem Settings for UNIX 26 Unix Software Tips 26 4 Leased Line Operation 27 Connecting to a Leased Line 27 Power Level Setting 27 Leased Line Handshaking 27 Manual
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    (Caller ID) 35 Distinctive Ring 38 Extended Distinctive Ring (EDR) 40 Setting Up EDR 41 EDR Application Example 42 6 Fax Operation 45 Fax Basics 45 Modem as Fax Machine 46 ITU-T T.30 Fax Protocol 46 Fax Command sets 47 Defining the Fax Command Sets 47 Class 1 Command Set 48 Class 2 Command
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    105 9 Diagnostics & Troubleshooting 107 Diagnostics 107 Power-On Self Test 107 Resetting The Modem 108 Loopback Tests 109 Indicator Lights 110 Line Condition Status Display 111 Trouble Shooting 113 AT Command Set Problems 113 Command Echo Problems 115 Answer Problems 115 Dialing Problems 116 Data
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    12 Index 124 xii
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    on the purchase of your U-336E modem - one of ZyXEL's premier high-performance products. The U-336E modem is world renown for its ability Manual, please call ZyXEL Technical Support at 714-693-0808. Other means of contacting ZyXEL are listed in the Contacting ZyXEL section. Unpacking Your Modem
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    . Please direct any additional questions about damaged or missing materials to your dealer or distributor, or contact ZyXEL customer service using the information on page vi. Required Equipment In addition to the ZyXEL modem you just purchased, you must have the following equipment to operate your
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    and ZyXEL-famous Intelligent features designed to make your data communications faster, easier, and more convenient. Standard Features • Ultra-high speed modem supports V.34bis for 33,600bps and is backwards compatible • Operates in all environments including: Windows 95, DOS, Windows, Macintosh
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    calls before you answer (you must subscribe to this service through your telephone company in order for your modem to identify callers). • Distinctive ring detects data and voice calls (this feature requires communication software that supports distinctive ring, such as ZFAX) • Remote configuration
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    • ITU-T V.29 G3: up to 9,600bps. • ITU-T V.27ter G3: up to 4,800bps. • ZyXEL Fax AT commands. Technical Specifications • Operating mode: auto-dial/answer. • Flow control: software XON/XOFF or hardware CTS/RTS. • Data/Voice toggle switch. • Configuration settings:
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    6 Introduction
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    site is clean and well ventilated. The ventilation slot of your ZyXEL modem located on the sides and bottom should not be covered and should allow free movement of air. Front Panel Figure 2-1 shows the front panel of the U-336E. There are 10 LED indicators, a 20 x 2 LCD display, and four key
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    ; lights up when a valid carrier is detected present on the line. OH Off-Hook indicator, lights up when your modem is in data mode or off-hook. It goes out when your modem is in talk mode or on-hook. DTR Data Terminal Ready indicator, lights up when your DTE or computer
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    the telephone set is connected to the line). Rear Panel Markings The U-336E rear panel is shown below: Figure 2-2 Rear Panel The following explains the connectors and switch on the rear panel. • POWER Power switch, turns the modem ON or OFF. • POWER JACK Input terminal for power adapter. • LINE Dial
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    the power line, make sure you only use the power adapter that is supplied with this unit. Use of another adapter may not allow your modem to operate and could result in serious damage to the unit. This adapter is rated for direct connection to an AC power outlet. Connect your
  • ZyXEL U-336E | User Manual - Page 23
    Powering Up Once your modem's power switch is turned ON, a series of diagnostic tests will be performed. For a more detailed description of these diagnostic tests, please refer to Chapter 9 Diagnostics & Troubleshooting. After performing the diagnostic tests, your modem is ready for use.
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    12 Installation
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    AT Commands The U-336E communicates asynchronously with computers using AT commands. AT commands are used to configure and control your modem. Commands are usually sent to the modem by way of communication software, but can also be entered manually by the user with the computer keyboard
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    program provides a simple method to manually enter AT commands so you can do such things as "customize" the settings of your modem, or store commonly used phone numbers. Once your modem is connected to your computer's serial port and telephone line, open the Windows 95 "Accessories" program group
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    correctly. To test the telephone line connection issue the manual answer command. Type: ATA Your modem 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 tone you will hear from
  • ZyXEL U-336E | User Manual - Page 28
    ATH0 Manually Disconnecting a Call: +++ATH Making Your First Connection In order to check your modem we will 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
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    window appears, enter the dial command with ZyXEL's BBS as the phone number. Type: ATDT17146930762 (Omit the '1714' if you are in this area code) The modem and AT&N0 can be combined into one line AT&D2&N0. • Your modem processes commands from left to right. The AT command that appears to the
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    or a connection is made. Terminates the current connection attempt, if pressed while modem is handshaking. Escape code sequence. Entered while the modem is in Data Mode. Returns modem to Command Mode. The U-336E supports several groups of AT commands: AT Command Set/Type Basic AT (Hayes compatible
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    an ERROR code, it means the command was invalid. The U-336E also provides result codes that show: • Whether or not a Dial Tone was detected when the modem originated a call. • If a busy signal was detected when the modem originated a call. • If a remote telephone ring was detected when dialing
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    can use the Sr.b? command to read their values. For example, to read the value of S-register S35, bit 7, type ATS35.7? and press Enter. The modem responds with an appropriate value, followed by OK. Changing S Register Values You can use the ATS0=n command to change the value of an Sregister. For
  • ZyXEL U-336E | User Manual - Page 33
    Non-Volatile Memory The U-336E has an amount of memory set aside for storing user information such as frequently used phone numbers and default command settings. The latter is particularly useful when using your modem to call a variety of different locations that require different settings. For this
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    you may wish to save the settings you have made as the default settings that are recalled when your modem is powered up. The AT&WZ command selects the current settings as the power-on profile. There are received, it generates an interrupt. If your hardware allows it and if 22 Basic Modem Operation
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    your software supports it, replace the 16450 UART with a 16550 model. This enable the disk cache by including SMARTDRV execution in your AUTOEXEC batch file. Default Modem Settings for PC's The U-336E factory settings are configured for operation with PC type computers and communication software. In
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    usage. It has a speed of up to 460.8Kbps and data loss errors will not occur when working with a ZyXEL modem's serial port. This solves high-speed communication problems in Windows and other multi-tasking systems. The serial port has a 32-byte transmission and a 32-byte receival FIFO to increase
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    the ZyXEL's fax features. One program which has found wide acceptance is FaxSTF which can be installed like a printer driver allowing up the modem. Turn on your modem before you start your Macintosh to avoid this delay. MaxFax is another fax software for Macintosh computers. Drivers are available
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    from a terminal or an XWindows application, you need a program such as Minicom or Seyon. If you wish to make use of your ZyXEL modem's special features, special gettys such as mgetty or vgetty are needed. These programs are available from several ftp-sites. Some archives also contain source files
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    transmit data and a second pair to receive. Twowire leased lines transmit and receive on the same pair of wires. Your modem supports 2 -wire leased lines only. Connecting to a Leased Line The U-336E default line is a dial-up type. The leased line must be connected to the jack labeled Line. Set your
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    must be designated as the originator and the other as the answerer. You can set this manually or automatically. Manual Connect Set the modem to leased-line mode. Type the asynchronous command ATD to the originating modem and ATA to the answering, or press the A/O button on the front panel of the
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    Terminating a Leased Line Connection A leased line can be terminated two ways: • Going on-line manually. • Turning the power OFF and ON. If you have set the leased line as the power-on default, the modem will try the leased line again. Leased Line Operation 29
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    30 Leased Line Operation
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    of the U-336E, and offers instructions on how each is used. Security Functions Your modem provides a security function that prevents unauthorized users from making connections. Two types of security functions are provided. • Type 1 security is used when the remote modem is also a ZyXEL modem. • Type
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    to enter the supervisor password. The attempt will be rejected if the entered password is not correct. The default supervisor password is ZyXEL when the modem is shipped from the factory. This supervisor password is also the password sent for automatic password checking in a type 1 connection. To
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    and level 2 security, with password check and callback, remote site enters the callback number. BEFORE THE SECURITY TYPE OR LEVEL CAN BE CHANGED, THE MODEM REQUIRES THE SUPERVISOR PASSWORD. For type 2 security, the remote site will be prompted to enter the user password. A maximum of 3 tries in 40
  • ZyXEL U-336E | User Manual - Page 46
    336E is provided as a profile by profile batch mode. When on-line, the remote modem's current configuration or one of its profiles can be read into one of the local modem connection is reestablished and the profile transmitted to the remote modem. Reading a remote profile b into a local profile a
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    charge this service. With CND service, the phone company's central office will send the coded caller information to the called station. This information is sent once between the first and second rings. Your modem can decode this caller information and present it to the connected computer/terminal
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    . The default is disabled. Enable it only when you have this service and want to enable its detection. THE CALLER ID MESSAGE MAY CAUSE ID FEATURE, BE SURE YOU ARE USING SOFTWARE THAT SUPPORTS IT (SUCH AS ZFAX). In single message format, the modem will send a ring message to the terminal as follows
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    as follows: RING TIME: 04-28 12:30 REASON FOR NO NUMBER: OUT_OF_AREA REASON FOR NO NAME: PRIVACY RING The last CND message that the modem received can be displayed by using the AT*T command. Special Functions 37
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    IF THE SCHEME USED IN YOUR COUNTRY IS SUPPORTED BEFORE USING THE CALLER ID FEATURE. FOR MOST service that may be offered by your phone company. Check your phone company for availability. With this service the fax number and have your modem answer only the ring corresponding to the data number. A
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    be heard even if it is not counted as an accepted ring by the modem. The control relationships between bits 3-6 in register S40 and the different ring types WILL BE ACCEPTED. USE THIS DEFAULT IF YOU DO NOT HAVE DISTINCTIVE RING SERVICE. If more than one type of Distinctive Ring is turned on, RING
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    be installed with an answering machine or voice telephone set at home. In most cases, the modem should not be set to answer regular rings, nor to report them. Thus, the software will not instruct the modem to answer the call when the phone rings. When a call comes in, the answering machine will
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    button, the caller can press a designated DTMF tone, which will activate the modem to report and subsequently be ordered to answer the fax call. Setting Up multiple phones are installed in parallel. Once this function is enabled, the modem will go into EDR mode after the ring disappears, and it will
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    's program might not answer because the setting of the software may require multiple rings to answer. S51 bits 0-1 control the number of rings that the modem will report once the CNG or DTMF tone is detected. The timing relationship between the Caller ID (if enabled), EDR, and ring detection is as
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    machine message to press "*" (or any other DTMF key) if he or she wants to send a fax. Save the settings in a profile and reset the modem with AT&WZ. Special Functions 43
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    44 Special Functions
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    336E can be used as a fax machine. In the sections below, we will describe how the modem works as a fax machine, the ITUT T.30 fax protocol, the Class 1,2, and 2.0 fax commands and ZyXEL with ZyXEL fax AT commands, and some specific fax applications. The instructions for using the included modem/fax
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    supports Group 3 send and receive facsimile functions. For normal fax operation, 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 you modem to the
  • ZyXEL U-336E | User Manual - Page 59
    The U-336E supports four command sets for fax operation: • Class 1 command set • TIA PN-2388 Class 2 command set • TIA 592 Class 2.0 command set • ZyXEL Extended Fax controlling fax/modems from a computer through the serial RS-232 interface. All fax/modems and fax software supporting this standard
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    also called the TIA-592 standard. Class 1 Command Set Command Value Description +FCLASS=n Service class selection n=0 Set to Data mode n=1 Set to Class 1 mode n=2 Set ch. 2 300 required for FTH & FRH +FTH and +FRH support value 3 (V.21 ch. 2 / 300 bps) only. 24 V.27ter 2400 required for FTM
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    17 w/st 14400 required for FTM & FRM * w/st means with V.17 short training Class 2 Command Set The following Class 2 commands are supported and implemented per TIA PN2388 (8/20/90): Command Syntax += +=? +? Description Execute a command or set a parameter. Read
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    DTE to determine the characteristics of the DCE's buffer size. +FCIG="string" Local fax station ID string, for polling Rx. +FCLASS=n Service class selection: Refer to +FCLASS Class 1 command in previous section. +FCON DCE responds fax connection . +FCQ=n Copy quality check capability
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    Command Value Description br=1 Bit rate: 4800 bit/s; V.27ter. br=2 Bit rate: 7200 bit/s; V.29 or V.17. br=3 Bit rate: 9600 bit/s; V.29 or V.17. br=4 Bit rate: 12000 bit/s; V.17. br=5 Bit rate: 14400 bit/s; V.17. wd=0 Page width: 1728 pixels in 215mm. wd=1 Page width: 2048 pixels in 255mm.
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    Command +FDR +FDT=df,vr,wd, ln +FET=n +FK +FLID="string" +FLO=n +FLPL=n +FMDL? +FMFR? +FMINSP=n Value Description Receive phase C data command; initiates document reception. Transmit phase C data command: release the DCE to proceed with negotiation. End of page or document command: n=0 More pages;
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    Request the DCE revision identification. +FSPL=n "Enable polling" command: n=0 Disable polling. n=1 Enable polling. All other +F commands are not supported, but the modem will respond OK. In many cases this means "don't care." See PN 2388 for command details. Class 2 Command Responses Fax
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    Response Value Function and Description +FCFR Confirmation . +FCIG:"string" Report remote ID response CIG. +FCON Facsimile connection response. +FCSI:"string" Report remote ID response CSI. +FDCS:vr,br,wd,l Report session parameters response; n,df,ec,bf,st refer to +FDCC=.... command.
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    Syntax += +=? +? Description Execute a command or set a parameter. Read permissible settings. Read the current setting. Supported Commands Command Value Description +FAA=n Auto-answer mode parameter: n=0 DCE answers as set by +FCLASS. n=1 DCE answers and
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    Command Value Description ln,df,ec,bf,st +FDCC command in Class 2 for parameter settings. +FCLASS=n Service class selection. Refer to +FCLASS Class 1 command in previous section. +FCO DCE response fax connection made. +FCQ=, rq=0 DCE
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    Command Value Description parameter n=0 Determine that T.4 EOL patterns are bit aligned (as received). n=1 Determine that the last received bits of T.4 EOL patterns are byte aligned by the DCE, with necessary zero fill bits inserted. +FIE=n Procedure interrupt parameter n=0 Procedure
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    Command +FMR? +FMS=n +FNR=rpr,tpr, idr, nsr +FNS="string" Value Description Request DCE revision identification. Minimum phase C speed parameter. refer to +FMINSP Class 2 command in previos section for parameter settings. Negotiation message reporting control parameters: rpr=0 Receiver parameters
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    Command +FPI="string" +FPR=n +FPS=n +FRQ=pgl,cbl +FSP=n Value Description Local fax station ID string, for polling Rx. Serial port rate control parameter: n=0 Automatic DTE rate detection by the DCE. n>0 Serial rate is fixed at the value multiplied by 2400 bps. For example, when n=8, the DTE rate
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    Command Value Description n=1 Enable polling. Class 2.0 Command Responses Response Value +FCI:"CSI ID string" +FCO +FCS:vr,br,wd,ln ,df,ec,bf,st +FET: ppm=0 ppm=1 ppm=2 ppm=3 ppm=4 ppm=5 +FHS: hsc= 0-0F hsc= 10-1F hsc= 20-3F hsc= 40-4F hsc= 50-6F hsc= 70-8F hsc= Function
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    Response +FIS:vr,br,wd,ln, df,ec,bf,st Value 90-9F hsc= A0-BF +FNC: "NSC FIF string" +FNF: "NSF FIF string" +FNS: "NSS FIF string" +FPI: "CIG ID string" +FPO +FPS:ppr,lc,blc,c blc,lbc ppr=1 ppr=2 ppr=3 ppr=4 ppr=5 Function and Description Refer to TIA-592 for details. Receive phase D hang up
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    ). Report transition to voice. Extended Fax AT Command Set Extended Fax AT Commands are unique to ZyXEL modems. The computer controls the modem through a set of extended fax AT commands and the modem responds with a set of status report result codes. During data state, compressed fax image data is
  • ZyXEL U-336E | User Manual - Page 75
    Set fax receiving mode. The messages are separated from the received fax data. The modem sends CONNECT FAX and ZyXEL first, then it waits for the DC2 character (hex18) to send the fax data. When the modem receives a DC2 from the DTE, it starts to send the fax connection parameters/SnnnnVnTnRnLnCnP
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    number with the remote fax machine during initial handshaking. Status Report Result Codes When the U-336E is in fax mode, each ATD or ATA command will make the modem try to establish a fax connection. Your modem will send a status report result code back to the DTE (computer). NO DIAL Tried to
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    's phone line is busy. Quiet answer is not detected before time-out. See below. When a fax connection is successfully established, the modem returns this message: CONNECT FAX/SnnnnVnTnRnLnCnP This message includes the connection speed and the fax parameters explained in the table below
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    and ATQ1 do not affect the above CONNECT and DISCONNECT status report result codes. The modem will always return the same status format as above. Flow Control In extended fax AT command mode, the U-336E always uses hardware (CTS/RTS) flow control. The flow control signaling used sending a fax is
  • ZyXEL U-336E | User Manual - Page 79
    fax message, your modem will turn off CD then send a status report result code to the DTE. Fax Reception from a BBS The U-336E can automatically detect messages in the list to CONNECT FAX. 3. Set the external mail string to ZyXEL and give it an error level. 4. In your BBS batch file, if the error
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    2400 CONNECT 2400 38400 CONNECT 14400 • Set external mail as: String 1 ZyXEL 2 3 Error Level 100 The following is a sample setting in the BINKLEY.CFG file for a Binkley system. Init AT&FX7S0=1#B1+FCLASS=6 ExtrnMail ZyXEL errorlevel 68 Fax Operation
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    (See also S8) Terminate current connection attempt when enter in handshaking state. +++ Escape sequence code, entered in data state, wait for modem to return to command state. Command Options Function & Description Ref. A Go on-line in answer mode. (See also S39.2, S43.6) Bn
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    mode local echo of S23.0 keyboard commands E0 Echo off E1 * Echo on Hn On/off hook control H0 * Hang up (on-hook) the modem or ISDN, same as 'ATH' H1 Off hook the modem In Display inquired information I0 Display numerical product code, same as 'ATI' 70 AT Command Set Summaries
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    .1-3 5 * disable the audio ring function O Return to on-line state O1 Force modem to request a retrain Qn Result code displayed S23.7 Q0 * Modem returns result code Q1 Modem does not return result code Q2 Modem returns result code but S40.1 quiet after answering on a RING (see also S42
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    Options Function & Description Ref. UPX Download firmware to the Flash EPROM by using Xmodem protocol help Description of ATI2 Output: The Link Status Report output appears as follows: ZyXEL MODEMS LINK STATUS REPORT Chars Sent Octets Sent Blocks Sent Blocks Resent 0 Chars Received
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    sent to remote modem Number of data bytes received from remote modem Number of data blocks sent to remote modem Number of data blocks received from remote modem Number of blocks resent due to remote modem request. (If there were many blocks resent, you may have experienced line trouble AT Command
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    Errors in frame (block) checksum. (If there were many FCS Errors, you may have experienced problems on the line.) Time (Units 1/2400 sec.) For modem's processor power measurement. For modem's processor power measurement. Local Hang-up Remote Hang-up Carrier Lost Resent Expiration Break Time-out
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    Description Security check ATH command D/V hang up Inactivity Extended AT& Command Set Command Options Function & Description Ref. &Bn Data rate, terminal-to-modem. S28.6 (DTE/DCE) &B0 DTE rate follows connection rate. (See also S44.6) &B1 * DTE/DCE rate fixed at DTE setting (See also
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    flow control &H4 Software (XON/XOFF) flow control. &Jn Type of Phone line S28.0 &J0 Single phone line, RJ-11 &J1 Multiple phone/modem line, RJ12/RJ13 &Kn Modem error control and data S27.0-2 compression. &K0 No error control.(Same as AT&K) &K1 MNP4 (See also S41.0). &K2 MNP4+MNP5 (See
  • ZyXEL U-336E | User Manual - Page 89
    Command Options Function & Description Ref. &M3 Synchronous mode &Nn Modem link mode options S19 (DCE/DCE). (See also S43.7, S48.1) &N0 * Multi-Auto, auto negotiate highest possible link rate: V.34, ZyX 19200, ZyX16800, V.32bis, V.32, V.
  • ZyXEL U-336E | User Manual - Page 90
    BELL 103 300 &N32 G3 Fax V.17/V.29/V.27ter 14400/12000/9600/7200/4800/240 0 (See also S42.4). &N34 ZyXEL 19200 &N35 ZyXEL 16800 &N36 ZyXEL 14400 &N37 ZyXEL 12000 &N38 ZyXEL 9600 &N39 ZyXEL 7200 &N42 CELL 14400 &N43 CELL 12000 &N44 CELL 9600 &N45 CELL 7200 &N46 CELL 4800T &N60 V.34
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    Ready (DSR) function S21.3 selection. &S0 * DSR overridden, DSR always ON. &S1 DSR according to CCITT (ITU- TSS). (See also S41.5, S44.4) &Tn Modem testing. S16 &T0 Terminate test in progress. &T1 Initiate Analog Loop-back (ALB) test. &T3 Initiate Local Digital Loop-back (LDL) test &T4
  • ZyXEL U-336E | User Manual - Page 92
    settings to user profile n in non-volatile RAM. (See also S35.6) &Xn Synchronous mode timing (clock) S14.4-5 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
  • ZyXEL U-336E | User Manual - Page 93
    8-bit character length. *Dn n=0-49 Set default dial pointer at telephone S29 directory location n. *D0 * (See also S35.4 and S38.0) *En Modem error control negotiation. S21.0 *E0 * if error control negotiation fails, keep the non-error control connection. *E1 If error control negotiation
  • ZyXEL U-336E | User Manual - Page 94
    call back, remote user enters the call back number *Hn n=0-49 Modify user password table at location n. *HS Modify supervisory password (Default: "ZyXEL") *In Command set selection S17.6-7 *I0 * AT command set *I1 V.25bis command set *I2 Dumb mode *Mn Leased line auto-handshake mode
  • ZyXEL U-336E | User Manual - Page 95
    S40.2 information. View the Password table Write local configuration profile "a" S36.1 to remote user profile "b" and reset remote modem from profile "b" Local user profile number "a" S37.4-7 Local active configuration Local factory default configuration Remote user profile number "b" S37
  • ZyXEL U-336E | User Manual - Page 96
    Line Feed +010 S5= Define ASCII Backspace. A value of 128- +008 255 disables the Backspace key's delete function S6= Set the number of seconds the modem waits +003 before dialing if 'X0' or 'X1' is selected. If a setting of 'X2' to 'X7' is selected, the 84 Status Registers & Result Codes
  • ZyXEL U-336E | User Manual - Page 97
    42 handshake, can be displayed at ATI2 line if available ('Flash' or ' ZyXEL' stands for ZyXEL connection) S14= bit dec hex Bit-mapped register: +002 0 0 0 Modem auto-handshake on *M0 Originate mode 1 1 Modem auto-handshake on *M1 Status Registers & Result Codes 85
  • ZyXEL U-336E | User Manual - Page 98
    Command bit dec hex Function and description Ref. Answer mode 1 0 0 Grant Remote Digital Loop- &T4 back test request 2 2 Deny Remote Digital Loop- &T5 back test 3,2 0 0 Dial-up line (Default) &L0 4 4 2-wire leased line &L1 8 8 4-wire leased line &L2 5,4 0 0 Internal clock (Default) &X0
  • ZyXEL U-336E | User Manual - Page 99
    answer mode. 7,6 0 0 AT Commands set (Default) *I0 64 40 V.25bis command set *I1 128 80 Dumb mode (no command *I2 accepted) S18= dec hex Force modem to fix baud rate +000 when answering Status Registers & Result Codes 87
  • ZyXEL U-336E | User Manual - Page 100
    Disable fixed baud function 1-46 1-2E Enable baud rate to be fixed when answering. Baud rate value settings (n) the same as S20 S19= dec hex Modem connection mode, same 0-73 0-49 setting value as 'AT&Nn' command S20= dec hex DTE speed (bps). Auto detected from AT Command 0 0 230400 bps
  • ZyXEL U-336E | User Manual - Page 101
    Only the speeds up to S20=15 are supported by auto speed detection. S21= bit dec hex Bit mapped register 0 0 0 Maintain non-error control *E0 connection when modem error control handshake fails 1 1 Drop connection when modem *E1 error control handshake fails 1-2 0 0
  • ZyXEL U-336E | User Manual - Page 102
    the default number 128 80 108.2 Data Terminal Ready, &D2 DTR OFF causes the modem to hang up and return to command state 192 C0 108.2, DTR OFF causes the &D3 modem to hang up and reset the modem to profile 0 after DTR dropped S23= bit dec hex Bit mapped register +105 0 0 0 Command
  • ZyXEL U-336E | User Manual - Page 103
    code enabled 6 0 0 Display result code in numeric V0 format (see S35.7) 64 40 Display result code in verbose V1 format 7 0 0 Modem returns result code Q0 128 80 Modem does not return result Q1 code (see also S40.1) S24= bit dec hex Bit mapped register 2-0 0-7 0-7 Ring Volume control, N0
  • ZyXEL U-336E | User Manual - Page 104
    quality *Q3 is poor S28= bit dec hex Bit mapped register +068 0 0 0 Single line RJ-11 phone jack &J0 (default) 1 1 Multiple phone/modem line, &J1 RJ12/RJ13 phone jack 1 0 0 Panel key is normal (default) &Y0 1 2 Panel key is locked &Y1 2-3 0 0 Destructive, expedited break &Y2 1 4 Non
  • ZyXEL U-336E | User Manual - Page 105
    register 0 1 1 Use CELL 4800T trells coded 4800 for V.32 4800 (available with cellular mode only) 1 2 2 Disable aborting from terminal during modem handshaking 2 4 4 V.26 alternative A. (see also '&N11') 3 8 8 Add 12 dBm attenuation to the leased line transmission power 4 16 10 When Data
  • ZyXEL U-336E | User Manual - Page 106
    b 2 2 Read from remote profile b to *Rab local profile a 7-5 Security function control 0 0 Disable security function *G0 (Default) 32 20 Enable type 1 security with *G1 password check. (ZyXEL to ZyXEL only) 94 Status Registers & Result Codes
  • ZyXEL U-336E | User Manual - Page 107
    Command bit dec hex Function and description Ref. 64 40 Enable type 1 security with *G2 password check and call-back (ZyXEL to ZyXEL only) 96 60 Enable type 2 security with *G3 password check 128 80 Enable type 2 security with *G4 password check and call-back 160 A0 Enable
  • ZyXEL U-336E | User Manual - Page 108
    to 5 S27.6 min. for special satellite line *n condition 3 8 8 Enable CCITT signals 140 and 141 on EIA-232D interface 4 16 10 In X2-X7 setting, modem waits for S6 seconds before dialing and ignores dial tone detection 5 32 20 DSR follows DCD and pulses &Sn 96 Status Registers & Result Codes
  • ZyXEL U-336E | User Manual - Page 109
    pulse off &C0 for 0.5 seconds at carrier loss S43= bit dec hex Bit mapped register +000 0 1 1 Disable ZyXEL 16800 in &N0 Multi-Auto mode 1 2 2 Disable ZyXEL 19200 in &N0 Multi-Auto mode 2 4 4 Disable cellular mode &N0 automatic transmit power adjustment (see also S49b0-3) 3 0 0 Enable
  • ZyXEL U-336E | User Manual - Page 110
    Command bit dec hex Function and description Ref. off-hook and modem answering 7 128 80 Modem hang-up if the line condition does not permit modem to run highest speed set by '&Nn' command S44= bit dec hex Bit mapped register +000 3 8 8 ATDSn initiates auto-dial of DSn the stored numbers
  • ZyXEL U-336E | User Manual - Page 111
    2 Enable DATA ONLY mode. Auto-detect V.34/ZyX/V.32bis/V.22bis/V. 23/V.21 Bell 103 when answering. If the connection try fails, the modem will continuously recycle the handshaking procedure until the S7 register times out. 2 4 4 Enable data calling tone (CNG) sending 3 8 8 Reverse the V.23
  • ZyXEL U-336E | User Manual - Page 112
    3-0 0-15 0-F Set cellular mode transmit power level -9 to -24 dBm. (See also S43b2) 7 0 0 For cellular mode only. Modem is installed in office (Default) 128 80 For cellular mode only. Modem is connected to a mobile phone S50= dec hex Inactively timer, in 10 second +000 units 0- 0-FF The
  • ZyXEL U-336E | User Manual - Page 113
    Command bit dec hex Function and description Ref. DTMF tone 12 0C Reserved 5-4 0 0 Disables fax-CNG tone detection (Default) 16 10 Reports RING for fax CNG tone 32 20 Reports RING 1 for fax CNG tone 48 30 Reports RING 2 for fax CNG tone 7-6 0 0 Disables data CNG tone detection 64 40
  • ZyXEL U-336E | User Manual - Page 114
    the new values of S18 to fix the baud rate when answering. 1 1 Force the modem to use the old values of S18 (compatible with 1496 series modem) to fix the baud rate when answering. Bit dec hex +nnn Note: S-register bit number, 'b', used in 'ATSr.b=n' and 'ATSr.b=?' Decimal value, 'x', used
  • ZyXEL U-336E | User Manual - Page 115
    The default value for 'n' is 5 when your modem is shipped. ATV0 ATV1 0 OK 1 CONNECT 2 RING ** 3 NO CARRIER 4 ERROR 5 CONNECT 1200 6 NO DIAL TONE 7 BUSY 8 NO ANSWER 9 RINGING* 10 CONNECT 2400 11 CONNECT 4800
  • ZyXEL U-336E | User Manual - Page 116
    one type of Distinctive Ring is turned on (S40b3-6) 'RING n' will be reported, n=Ring Type # (1-4) Result Code Chart Symbol Reference: V Supported % Reports the DTE Speed as: CONNECT DTE_Speed @ CONNECT DTE_Speed/Protocol DCE_Speed/Error_Control † Example: CONNECT 38400/V.32bis
  • ZyXEL U-336E | User Manual - Page 117
    Values NONE, ARQ LAPM, V42 (This field will not show if no error control is negotiated) V42b All possible DCE speeds supported All possible DTE speeds supported Connect Strings for Error Corrected Connections To enable the following numerical (ATV0) and verbose (ATV1) result codes when an error
  • ZyXEL U-336E | User Manual - Page 118
    106 Status Registers & Result Codes
  • ZyXEL U-336E | User Manual - Page 119
    & Troubleshooting Diagnostics The U-336E is modem's functioning and performance, and to locate the source of a communication problem. Power-On Self Test At each power-up or upon a reset command from the panel, the modem will test the ROM code checksum, system RAM memory, Diagnostics & Troubleshooting
  • ZyXEL U-336E | User Manual - Page 120
    Resetting The Modem A reset ZyXEL Service Center for assistance, or follow the return procedure to return the modem to ZyXEL. If the normal IDLE SCREEN shows up, the original failure was due to a temporary power-on reset problem and will not affect modem operation. 108 Diagnostics & Troubleshooting
  • ZyXEL U-336E | User Manual - Page 121
    while the right reader displays accumulated bits sent. This test can only be initiated when the modem is off-line. The following Bit Error Rate Meter example shows 11120 Kbits sent, 22 bits , all data received from the remote modem will be returned to the remote Diagnostics & Troubleshooting 109
  • ZyXEL U-336E | User Manual - Page 122
    modem to do a digital loopback. During testing, the local modem will send a remote digital loopback request to the remote modem according to V.54. If the remote modem supports the Throughput Meter of the initiated modem will change to a Bit Error initiated by either modem when the modems are on-line
  • ZyXEL U-336E | User Manual - Page 123
    to indicate that the modem is handshaking or retraining. modem rejects some of the out-of-band noise. For V.22/22bis, the difference can be as high as 8 dB because the modem only uses part of the 3 KHz bandwidth and rejects more than half of the voice band noise. Diagnostics & Troubleshooting
  • ZyXEL U-336E | User Manual - Page 124
    in T (1/2400 sec.). Will be re-measured in every retrain action. FRN (Fast Rate Negotiation) Granted (FG) The count of the granting of the remote modem's change rate (FRN) requests. Each request is an indicator of a changed receiving condition. 112 Diagnostics & Troubleshooting
  • ZyXEL U-336E | User Manual - Page 125
    of the FCS errors received (block errors) (bad reception on the local modem). Trouble Shooting Your modem is designed to provide years of ultra high speed satisfaction. In the unlikely event you encounter problems using your modem, the tips in this section will help you to identify and resolve them
  • ZyXEL U-336E | User Manual - Page 126
    your modem was in the data state instead of the command state. To switch from data state to command state, type the escape sequence code +++. To return to data state, type ATO and press Enter. Problem You receive the ERROR result code after typing an AT command. 114 Diagnostics & Troubleshooting
  • ZyXEL U-336E | User Manual - Page 127
    your communications software are echoing characters to your screen. Use the E0 command to disable modem echo, or turn off your software program's echo (or duplex) feature. Answer Problems Problem Your modem does not auto-answer incoming calls. Solutions 1. Make sure the supplied telephone cable is
  • ZyXEL U-336E | User Manual - Page 128
    ring. If the LEDs do not respond in this way, refer to your ZyXEL Modem Reference Manual. 4. Set &Dφ and auto answer, if your modem is not connected to RS232 or DTR is not ready. Problem When you receive a phone call, your modem immediately seizes control of the telephone line. Solution Your
  • ZyXEL U-336E | User Manual - Page 129
    modem and communications software are using the same flow control method, type AT&T8 and press the Enter key with your modem across your screen. Connection Problems Problem Your modem disconnects while communicating with a report, refer to your ZyXEL Modem Reference Manual. 2. You may have
  • ZyXEL U-336E | User Manual - Page 130
    Upgrading by Flash EPROM 1. Obtain the new firmware by downloading from the ZyXEL BBS, WWW or FTP site. See Contacting ZyXEL on page vi for the FTP address. 2. Turn on your computer. 3. Turn on your modem. 4. Start any communications program that supports the XModem protocol. 5. Type ATUPX. 6. Press
  • ZyXEL U-336E | User Manual - Page 131
    modem is equipped with ZyXEL's exclusive Kernel Recovery Mode. This unique feature enables quick recovery from failed flash uploads. With other modems, a failed flash upload usually results in the user having to return the modem update process takes control of the modem. It accepts a limited set of
  • ZyXEL U-336E | User Manual - Page 132
    11 Connector Pinouts Phone Jack Pinouts The ZyXEL U-336E modem features two RJ-11 phone jacks, one for 2-wire dial-up and 2-wire leased line connection (LINE) and one for an optional connection to a telephone
  • ZyXEL U-336E | User Manual - Page 133
    Signal Pin 6 7 8 15 17 18 20 21 22 24 25 ITU-TSS Signal Name 107 EIA Signal Name CC 102 AB 109 CF 114 DB 115 DD 141 108/2 CD 108/1 140 125 CE 113 DA 142 Pin/Signal Description Direction DTE-DCE Data Set Ready ← (DSR). Signal Ground (GND). Data Carrier ← Detected (DCD).
  • ZyXEL U-336E | User Manual - Page 134
    Macintosh Serial Port Pinouts The following table shows the wiring of a modem Macintosh hardware handshaking cable: Mac Modem Din 8 DB 25 1 4 & 20 2 5 3 2 4 7 5 3 6 - 7 8 8 7 Description DTR to RTS and DTR, Hardware Handshaking Out CTS to CTS, Hardware Handshaking In TX- to TXD,
  • ZyXEL U-336E | User Manual - Page 135
    Connector Pinouts 123
  • ZyXEL U-336E | User Manual - Page 136
    35, 36, 38, 42, 83 Command Characters, 15, 23 Contacting ZyXEL, vi Dialing using ATD Commands, 15 Distinctive Ring, 4, 38, 39, Line Handshaking, 28 Auto, 28 Manual Connect, 28 Leased Line Operation Terminating Serial Port Pinouts, 125 Microsoft Windows, 14 Modem operation, 13 Non-Volatile Memory,
  • ZyXEL U-336E | User Manual - Page 137
    20, 21, 39, 41, 71, 72, 85, 103 Technical Specifications, 5 Testing your modem, 17 Trouble Shooting Answer Problems, 118 AT Command Set Problems, 115 Command Echo Problems, 117 Connection Problems, 119 Data Transfer Problems, 119 Dialing Problems, 118 UART 16450, 23 UNIX, 3, 26, 96 Serial cable, 26
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U-336E
User’s Manual
Version 1.0
(Mar. 1997)
ZyXEL
A
CCESSING
I
NTERNET
& I
NTRANET