ZyXEL U-336S User Guide

ZyXEL U-336S Manual

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  • ZyXEL U-336S | User Guide - Page 1
    U-336S and U-336SA User's Manual Version 3.0 ZyXEL TOTAL INTERNET ACCESS SOLUTION
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    Limited Warranty ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in 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
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    may also have other rights which vary from state to state. Copyright © 1999 by ZyXEL The contents of this book may not be reproduced (in any part or as a to 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 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
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    cases, the company's inside wiring associated with a single line individual service may be extended by means of a certified connector assembly. The customer may be particularly important in rural areas. Caution: Users should not attempt to make such connections themselves, but only for U-336S model. v
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    recommendation I.420 (Basic Rate ISDN user access). This product complies with the following directives: 1. The Council Directive 89/336/EEC of 3 May 1992 on between 8:00AM and 5:00PM Taiwan time (GMT +8:00). • Fax: ZyXEL in North America: (714) 693-8811 or Taiwan: +8863-5782439 • E-mail: vi
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    .com.tw outside North America. • Technical support: [email protected] in North America. [email protected] 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
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    viii
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    Warranty ii FCC Part 15 Information iii Information for Canadian Users iv Contacting ZyXEL vi 1 Introduction 1 Required Equipment 1 Modem Features 2 Standard Features 2 Intelligent Features 3 Fax Compatibility 4 Technical Specifications 4 2 Installation 7 Front Panel 7 Front Panel LEDs 8 Front
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    20 Non-Volatile Memory 20 Storing Phone Numbers 21 Dialing Stored Phone Numbers 21 Saving Settings and User Profiles 21 Helpful Hints for PC Computers 22 Default Modem Settings for PC's 23 ZyXEL Serial/Parallel I/O Card 23 Helpful Hints for Mac Computers 24 Special AT Command Settings for Mac 24
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    44 Answering from Synchronous Mode 45 Auto-Answer 45 Manual Answer 45 5 Leased Line Operation 46 Connecting to a Leased Line 46 Power Level Setting 46 Leased Line Handshaking 46 Manual Connect 47 Auto Handshake 47 Aborting from Leased-Line Operation 47 Terminating a
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    Setting Up EDR 60 EDR Application Example 61 7 Fax Operation 64 Fax Basics 64 Modem as Fax Machine 65 ITU-T T.30 Fax Protocol 65 Fax Command sets 66 Defining the Fax Command Sets 66 Class 1 Command Set 67 Class 2 Command Set 68 Class 2.0 Command Set 74 Extended Fax AT Command Set 81 Flow Control 85
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    & Troubleshooting 128 Diagnostics 128 Power-On Self Test 128 Resetting The Modem 129 Loopback Tests 130 Indicator Lights 132 Line Condition Status Display 132 Trouble Shooting 135 AT Command Set Problems 135 Command Echo Problems 136 Answer Problems 137 Dialing Problems 138 Data Transfer Problems
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    . The U-336S modem requires an AC power adapter whereas the U-336SA can be directly connected to the AC power outlet. If you do not find information on a specific topic, or if you would like more information about a topic covered in your User's Manual, please call ZyXEL Technical Support at 714
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    ) for U336S modem only. • Available AC wall outlet. • Telephone line from your telephone company (dial-up or leased line). • Data and fax communication software. Modem Features No other 33.6 Kbps modem gives you so much for so little. Your modem is equipped with an array of standard and ZyXEL-famous
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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.17 G3: up to 14,400bps. • 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. • Configuration settings: software programmable with non
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    • Audio Monitor: programmable volume control. Introduction 5
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    6 Introduction
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    responsibility of the user to provide and use a shielded RS-232 cable. Make sure your installation 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 The U-336S and the
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    Figure 2-2 U-336SA Front Panel Front Panel LEDs PWR Power ON indicator, loghts up when your modem is turned ON. 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. AA Auto-Answer indicator, lights up when
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    allow intuitive menu tree operation and display modem status. Refer to Panel Operstion section in the Chapter LCD Panel Operation for details of menu key operations. Rear Panel Markings The U-336S/SA rear panels are shown below: Figure 2-3 U-336S Rear Panel Figure 2-4 U-336SA Rear Panel Explanations
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    Pinouts for your reference. The signal-pin assignments for RJ-11 phone jacks are also listed in Chapter 12 Connector Pinouts. Modem Connection When you connect your U-336S modem to the power line, make sure you only use the power adapter that is supplied with this unit. Use of another adapter
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    336S Modem Connections For the U-336SA you don't need an AC adapter. Use the supplied power cord to connect your modem to the AC power outlet. Figure 2-6 U-336SA Modem about. Your modem comes factory pre-set and allows you to fully configure the modem from the LCD display. User configurations are also
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    detailed description of these diagnostic tests, please refer to Chapter 10 Diagnostics & Troubleshooting. After performing the diagnostic tests, your modem will display the current modem settings on the LCD panel as shown below: Your modem is now ready for use. Multi-auto V42b DL D R O A 115200 AS
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    AT Commands The U-336S/SA 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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    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 the COM port settings. The settings used for your modem should be as follows. Bits per second: Data bits: Parity: Stop bits: Flow Control: 57600 8
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    commands. In the terminal window, type: AT Your modem responds 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 Your modem will pick up the phone line, and try to communicate
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    EXAMPLE, N IS A NUMBER FROM 1 TO 255 THAT 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: ATH1 Hang up modem (on-hook): ATH0 Manually Disconnecting a Call: +++ATH 16 Basic
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    is probably set to off. In this case, issue the ATE1 command. • When a command is successfully issued and accepted, a modem responds with a "Result Code." Your modem 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
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    code sequence. Entered while the modem is in Data Mode. Returns modem to Command Mode. The U-336S/SA supports several groups of AT commands: AT Command Set/Type Basic AT (Hayes compatible) Basic AT$ (on line help) Extended AT& commands Extended AT* commands Fax AT+ commands S-Register command
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    336S/SA 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 • The speed, protocol, and error control/data compression method used. • If your modem has detected an incoming ring. Result codes
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    to 2. Be sure the n value is between 1 and 255. If n is set to 0, your modem will not answer incoming calls. Non-Volatile Memory The U-336S/SA 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
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    THE 'S' IN THE AT&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 your modem is powered up. The AT&WZ command selects the current settings as
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    n=0 to 4. Profiles 0 to 3: User profiles. Profile 4: Factory default profile. If your hardware allows it and if your software supports it, replace the 16450 UART with a 16550 model. your serial port at 57600 bps and above. While data is written from the transfer-buffer to your hard Modem Operation
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    Modem Settings for PC's The U-336S/ ZyXEL modem, for example: The serial port is 16550-compatible for most communication software 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
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    . One of the most powerful shareware programs available is ZTerm. Fewer programs are available to make use of the ZyXEL's fax features. One program which has found wide acceptance is FaxSTF which can be installed like a printer driver allowing you to send faxes from almost 24 Basic Modem Operation
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    . During this time the line manager software tries to locate and to set 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 which allow use of the serial ports at speeds up to 230.4 Kbps
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    from a terminal or an X-Windows 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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    Basic Modem Operation 27
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    easy and quick reference. Modem users can also use the panel menu operations and use the equivalent AT commands listed in this chapter. If you use your modem with a PC the factory default settings should be just right for you. Connect the modem according to the instructions in Chapter 2, install the
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    rectangle which may be moved using the keys next to the display. The modem also displays the current status and settings in the idle screen: Information Link Option Link Speed Error Control Data Compression Line Type Data Format DTE Speed ORG/Ans Example V34 (V.34) 33600 (bps) V42 (implied by
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    DIAGNOSTIC menu. All three menu trees can be accessed by pressing the up or down arrow key. When the modem is in the data state, there is one idle screen and other data state status screens in Non-V.34 connection which can be accessed by pressing the left or right arrow key. ( There
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    Double Arrows on The Screen In some menu screens, you will see double left arrows (). This means there are more items on the left or right. Use the left or right arrow key to select them. If you can only see a double right arrow, this indicates that the current item is
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    Dial Memory The first menu in the dialing directory is DIAL MEMORY. Pressing the ENTER key will display the following screen: z #00:12345 Dial out the number > SELECT MEMORY Equivalent AT Commands: AT&Z? ATDSn View all stored phone numbers. n = 0 - 49; dial stored number. The
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    be changed or saved. View and Store a Number If you want to view or store a phone number into the EEPROM in lease line operation or data state. You can select "PHONE NUMBER" screen and enter it. The operation is the same as the above. Dialing a Number The same procedure as in
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    Manual Dial. Once the other side answers, access O (Originate) by using the left or right arrow key so the blinking cursor settles on the O. Then press the ENTER key to start the modem and the modem will change from data to voice communication. When both sides wish to return to data communication,
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    a modem to return to command state. Enter the escape sequence while in data state and wait for the modem to respond. Go on-hook; disconnect the modem. change the S0 value to the desired number of rings until the modem automatically answers. Setting this value to zero disables auto answer.
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    code. If any key interruption occurs (from the terminal or panel) and breaks in before the connection is made, the screen displays: ABORT 1234567 The modem will then return to the IDLE STATUS screen. If the time interval depicted in the S7 register expires, and the line is still not connected
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    .......... 1234567 The modem will then return to the IDLE STATUS screen. If the first handshaking signal has been detected, the LCD screen will display: HANDSHAKING 1234567 If a connection has been made, the LCD will display the actual connected status. These are V.34 data state screens
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    On-line Status Screen 1 Status Link Option Line Speed Error control Line Type Data Format Instant Transmission Throughput Instant Receiving Throughput Display V34b 33600 V42b DL AS 55820 51324 Unit/Meaning V.34bis bps/ TX/RX speed in V-34 V.42bis/
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    Status Link Layer Status Block Size Blocks Retransmitted FCS (Frame Check Sum) Errors Display V42b/SREJ 256 0 0 Unit bits blocks bits On-line Status Screen 5 Status Near End Echo Far End Echo Round Trip Delay Echo Frequency Offset Display Unit -22.3 dB -57.2 dB 0 ms 0 Hz On-line Status
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    Status Transmitted Shaping Received Shaping Transmitted filter index Received filter index Display Unit MIN (MAX) MIN (MAX) 0~10 0~10 On-line Status Screen 9 Status Transmitted Carrirr Received Shaping Transmitted Baud rate Received Baud rate Display Unit 1959 Hz 1959 Hz 3429 Baud
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    modem to return to command state. Enter the escape sequence while in data state and wait for the modem to respond. Go on-hook(hang up); disconnect the modem you to the use of the U-336S/SA for synchronous operation. The modem can be used as a synchronous modem when it is connected to a synchronous
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    will be initialized to synchronous mode (&M3) with V.25bis command enabled (*I1) when powered on. A special command RST is provided to get the modem back to asynchronous AT command mode from V.25bis mode. You can enter this RST command in either synchronous or asynchronous V.25bis mode. Syntax CRN
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    with a common timing clock. This timing clock is used to transmit data from the DTE to the modem which modulates the data according to this clock. The receiving modem recovers the clock and data from the carrier and sends the data to the receiving DTE along with the clock. There are three types
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    in the command state. SYNC DATA SYNC AT&M1 AT&M3 The modem accepts asynchronous commands in command state, but exchanges data synchronously in data state. The modem accepts synchronous command (V.25bis) and exchanges data synchronously with a remote modem. Dialing from Synchronous Mode 1. Dial
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    &M1 or &M3, then raise DTR from your terminal or communication software. The modem will dial the default stored number. After the modem is connected, the modem will enter synchronous operation. 4. Manual dial: Set the modem to synchronous mode (&M1 or &M3), then dial a number from a telephone set
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    Four-wire leased lines use one pair of wires to transmit data and a second pair to receive. Two-wire 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-336S/SA default line is a dial-up type. The leased line
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    for rings does not occur in this situation. If these two modems want to establish a data link, one 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
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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. 48 Leased Line Operation
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    Leased Line Operation 49
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    the U-336S/SA, 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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    prompting the user 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
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    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 seconds is allowed. If a correct password is not entered
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    Remote Configuration Remote configuration on the U-336S/SA 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's user profiles. This profile is modified locally and the line can be
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    can store them into user profiles. You just need to configure the remote modem into one of the standard configurations by activating the remote configuration once. Caller Number Delivery (Caller ID) Caller Number Delivery (CND), commonly called Caller ID, is a new kind of phone service that may be
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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. 56 Special Functions
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    numbers for voice, data, and fax, respectively. You can then have your fax machine answer only the ring corresponding to the fax number and have your modem answer only the ring corresponding to the data number. A voice call will not be answered by either fax machine or data modem and it will only
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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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    interfering with regular voice calls. When most users install a fax/modem at home, they won't subscribe to an extra telephone line for occasional fax or data calls; however, fax/data calls do come in from time to time. If a user lets the fax/data software application answer, voice calls will be
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    be used at home where 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 be able to detect the data/fax CNG tone and DTMF tones, and report them as different types of rings. The EDR settings
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    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 Example If we use ZFAX as our fax receiving application and we don't want it to answer the call unless it is a fax call, the way to set it up
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    2. Set S51.0=1 to enable EDR and report RING twice. The modem will not report a normal RING and ZFAX will not answer a call unless EDR RING is reported. 3. Set S51.4=1 to enable fax CNG tone detection. It is reported as RING. 4. Set S51.2=1 to enable DTMF tone detection. It is reported as RING. If
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    Special Functions 63
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    associated with ZyXEL fax AT commands, and some specific fax applications. The instructions for using the included modem/fax/voice utility program modem module. The remote facsimile receives the data with its internal modem, decodes it back to bitmapped image data, and prints it on paper. Fax
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    connection or the ZyXEL serial port interface connects you modem to the computer. Your modem uses the same interface for both data and fax applications. In fax operations, the modem performs protocol handshaking and image data transfer. The computer handles image data creation, capturing, conversion
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    , and 2400 bps if the line quality is poor. Fax Command sets The U-336S/SA 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 AT command set Defining the Fax Command Sets The EIA Class 1 and Class
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    =n Service class selection n=0 Set to Data mode FAX SOFTWARE PACKAGES MAY GET CONFUSED BY THIS RESPONSE. Command +FTS=n +FRS=n +FTM= +FRM= +FTH= +FRH= Value 0-255 0-255 Description Stop transmission and pause, in 10 ms units. Wait for silence, in 10 ms units. Transmit data
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    300 required for FTH & FRH +FTH and +FRH support value 3 (V.21 ch. 2 / 300 bps) Class 2 Command Set The following Class 2 commands are supported and implemented per TIA PN2388 (8/20/90): Command Syntax . Read permissible settings. Read current setting. Supported Commands (per TIA PN2388 8/20/90)
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    bit order. Select reversed bit order in receiving mode for phase C data. Buffer size; read only parameter: Allow DTE to determine the characteristics of the DCE's buffer size. Local fax station ID string, for polling Rx. Service class selection: Refer to +FCLASS Class 1 command in previous section
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    Command 70 Fax Operation Value vr=1 br=0 br=1 br=2 br=3 br=4 br=5 wd=0 wd=1 wd=2 ln=0 ln=1 ; 297mm. Page length: B4; 364mm. Page length: unlimited length. Data compression format: 1-D; modified Huffman. Data compression format: 2-D; modified Read. Error correction disabled. Enable error correction
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    refer to +FDCC command. Receive phase C data command; initiates document reception. Transmit phase C data command: release the DCE to proceed with document, another document follows. Procedure interrupt; end of document. Regular fax abort command. Local ID string parameter. Flow control options: No
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    C response time-out: Determine how long the DCE will wait for a command after reaching the end of data when transmitting in Phase C. =0 to 255; 100 ms units. Page transfer status Received page good. the DCE revision identification. "Enable polling" command: Disable polling. 72 Fax Operation
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    Command Value Description 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 on phase D hang up code. +FNSC:"HEX string" Report the non-standard facilities command frame. Fax Operation 73
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    data. In Class 2 fax mode, both hardware (RTS/CTS) and software (XON/XOFF) flow control are enabled. Class 2.0 Command Set Command Syntax += +=? +? Description Execute a command or set a parameter. Read permissible settings. Read the current setting. Supported
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    FBS? +FCC=vr,br,wd ,ln,df,ec,bf,st +FCLASS=n +FCO +FCQ=, rq=0 rq=1 rq=2 tq=0 tq=1 tq=2 +FCR=n n=0 n=1 +FCT=n 0-255 +FDR Description mode for phase C data settings. Service class selection. Refer to +FCLASS Class 1 command in previous section. DCE response fax connection made
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    FLO=n +FLP=n Value n=0 n=1 n=0 n=1 n=0 n=1 n=2 n=0 n=1 Description document reception Transmit phase C data command: releases the DCE to proceed with negotiation Phase C received EOL alignment parameter Determine that T.4 EOL for polling. Indicated document available for polling. 76 Fax Operation
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    frames are not reported. +FTI: +FCI: and +FPI: response reports are suppressed. Non-standard frames are reported. +FTI:, +FCI: and +FPI: response reports are generated. Fax Operation 77
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    Value n=0 n>0 pgl= 0-64 (HEX value) cbl= 0-FF (HEX value) Description Non-standard byte string parameter. "string": string of hexadecimal coded octets. Local fax station ID string, for polling Rx. Serial port rate control parameter: Automatic DTE rate detection by the DCE. Serial rate is fixed at
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    hsc= 0-0F hsc= 10-1F hsc= 20-3F hsc= 40-4F hsc= 50-6F Function and Description Report remote ID response, Called Station ID Fax connection established response. negotiated session parameters (DCS frame information) response. Refer to +FIS= comnd. Post page message response: Another page next, same
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    . Receive phase C hang up codes. Refer to TIA-592 for details. Receive phase D hang up codes. Refer to TIA-592 for details. Remote fax station capabilities (DIS frame information) response refer to +FIS=... command for a description of sub-parameters. Report NSC (non-standard Commands) frame Report
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    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 flowing between the modem and
  • ZyXEL U-336S | User Guide - Page 96
    following the connect message. (Default) #B1 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
  • ZyXEL U-336S | User Guide - Page 97
    receiver: 0 ms at 3.85 line/mm, T(7.7)=T(3.85). Set local phone number to the phone number following the character 'P' can store up to 25 characters. The modem will exchange this phone number with the remote fax machine during initial handshaking
  • ZyXEL U-336S | User Guide - Page 98
    Status Report Result Codes When the U-336S/SA 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 TONE NO CARRIER BUSY NO ANSWER CONNECT FAX Tried to dial but no dial
  • ZyXEL U-336S | User Guide - Page 99
    AT command mode, the U-336S/SA always uses hardware (CTS/RTS) flow control. The flow control signaling used sending a fax is: • CTS is used by your modem for DTE flow control. When the modem turns CTS off, the buffer inside the modem is full and cannot accept any more data. The computer should send
  • ZyXEL U-336S | User Guide - Page 100
    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-336S/SA can automatically detect data and fax calls and allow BBS software to receive faxes in the list to CONNECT FAX. 3. Set the external mail string to ZyXEL and give it an
  • ZyXEL U-336S | User Guide - Page 101
    the connection message to: 300 1200 1275 2400 CONNECT 4800 CONNECT 1200 9600 CONNECT FAX 19200 CONNECT 2400 38400 CONNECT 4800 CONNECT 7200 CONNECT 9600 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
  • ZyXEL U-336S | User Guide - Page 102
    (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. All the Following Commands Require a "AT" Prefix: Command Options Function & Description Ref. A Go on
  • ZyXEL U-336S | User Guide - Page 103
    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' AT Command Set Summaries 89
  • ZyXEL U-336S | User Guide - Page 104
    I1 Display product information and ROM checksum I2 Display modem link status report I12 Display physical layer status Ln 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
  • ZyXEL U-336S | User Guide - Page 105
    Download firmware to user profile n (0-3). Z4 Reset modem and load factory settings. $ Basic command summary help &$ Extended 'AT&' command summary help *$ Extended 'AT*' command summary help Description of ATI2 Output: The Link Status Report output appears as follows: ZyXEL MODEMS
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    Number of characters DTE has sent to modem Number of characters modem has sent to DTE Number of data bytes 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 92 AT Command Set Summaries
  • ZyXEL U-336S | User Guide - Page 107
    checksum. (If there were many FCS Errors, you may have experienced problems on the line.) Round Trip Time (Units 1/2400 sec.) Delay Xmitter Underrun For modem's processor power measurement. Receiver For modem's processor power measurement. Overrun Disconnect Local Hang-up Remote Hang-up
  • ZyXEL U-336S | User Guide - Page 108
    Dropped Carrier Lost 2 (Remote hang-up, busy tone) Keyboard Abort 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
  • ZyXEL U-336S | User Guide - Page 109
    guard tone (within USA, Canada). &G2 1800 Hz guard tone. &Hn Data flow control, DTE/DCE. S27.3-5 &H0 Flow control disabled. &H3 * 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
  • ZyXEL U-336S | User Guide - Page 110
    Direct asynchronous mode, no data buffering &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.22bis, V.22 and Bell 212A, G3 Fax V.17/V.29/V.27ter
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    /4800 &N24 BELL 212A 1200 &N25 BELL 103 300 &N32 G3 Fax V.17/V.29/V.27ter 14400/12000/9600/7200/4800/2400 (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 AT Command Set Summaries 97
  • ZyXEL U-336S | User Guide - Page 112
    &Rn RTS (Request To Send) function selection &R0 CTS tracks RTS, response delay is set in S26 &R1 * Ignore RTS, assumes RTS always ON &Sn Data Set Ready (DSR) function selection. &S0 * DSR overridden, DSR always ON. &S1 DSR according to CCITT (ITU- Ref. S23.2 S21.5 S21.3 98 AT Command
  • ZyXEL U-336S | User Guide - Page 113
    settings (n=1-4) &V5 View factory default settings. &Wn n=0-3 Write current 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
  • ZyXEL U-336S | User Guide - Page 114
    Yn Break handling. Destructive Break S28.2-3 clears the buffer. Expedited Break is sent immediately to the remote system. (For internal modem only.) &Y0 Destructive, expedited. &Y1 * Nondestructive, expedited. &Y2 Nondestructive, unexpedited. &Z? Display all the phone numbers stored in non
  • ZyXEL U-336S | User Guide - Page 115
    * (See also S35.4 and S38.0) *En Modem error control negotiation. S21.0 *E0 * if ZyXEL to ZyXEL only) *G3 Enable type 2 security, with password check *G4 Enable type 2 security, with password check and call back *G5 Enable type 2 security, with password check and call back, remote user
  • ZyXEL U-336S | User Guide - Page 116
    . *Q3 Disconnect if signal quality is poor. *Rab Read remote profile "b" to local user S36.1 profile "a" a=0-3 Local user profile number "a" S37.4-7 b=0-3 Remote user profile number "b" S37.0-3 b=4 Remote active configuration b=5 Remote factory default configuration *Sn Secondary channel
  • ZyXEL U-336S | User Guide - Page 117
    profile "b" and reset remote modem from profile "b" a=0-3 Local user profile number "a" S37.4-7 a=4 Local active configuration a=5 Local factory default configuration b=0-3 Remote user profile number "b" S37.0-3 The AT+F commands are located in the chapter 7 Fax Operation AT Command Set
  • ZyXEL U-336S | User Guide - Page 118
    104 AT Command Set Summaries
  • ZyXEL U-336S | User Guide - Page 119
    for factory use and should not be changed. Basic S-Registers "ATSn=x" Command Function & Description +Ref. S0= Set the number of rings on which the modem +000 will answer. 0 value disable auto-answer S1= Counts and stores number of rings from an +000 incoming call S2= Define escape code
  • ZyXEL U-336S | User Guide - Page 120
    dial tone. (See also S41b4) S7= Set duration, in number of seconds modem +060 waits for a carrier S8= Set duration, in seconds, for pause or ' ZyXEL' stands for ZyXEL connection) S14= bit dec hex Bit-mapped register: 0 0 0 Modem auto-handshake on Originate mode 1 1 Modem auto-handshake
  • ZyXEL U-336S | User Guide - Page 121
    (Default) &X0 16 10 External clock &X1 32 20 Remote clock &X2 7,6 0 0 Asynchronous data with &M0 buffering (Default) 64 40 Asynchronous command, &M1 synchronous data 128 80 Direct asynchronous, no data &M2 buffering 192 C0 Synchronous &M3 S15= bit dec hex Bit-mapped register +130
  • ZyXEL U-336S | User Guide - Page 122
    Command bit dec hex Function and description Ref. power on 64 40 Profile 2 as active settings after Z2 power on 96 60 Profile 3 as active settings after Z3 power on 128 80 * Factory default as active settings Z4 after power on S16= dec hex Test status register +000 0 0 No test in progress
  • ZyXEL U-336S | User Guide - Page 123
    0 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 +000/ &Nn 0-73 0-49 setting value as 'AT&Nn' command S20= dec hex DTE speed (bps). Auto +003 detected from AT Command
  • ZyXEL U-336S | User Guide - Page 124
    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-336S | User Guide - Page 125
    synchronous mode. (Default) 6-7 0 0 Assume DTR always On &D0 64 40 108.1, DTR OFF-ON transition &D1 causes dial of 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
  • ZyXEL U-336S | User Guide - Page 126
    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, increment
  • ZyXEL U-336S | User Guide - Page 127
    Command bit dec hex Function and description Ref. command) S27= bit dec hex Bit mapped register 0-2 Modem error control 0 0 No error control &K0 1 1 MNP4 + MNP3 (see also &K1 S41.0) 2 2 MNP4 + MNP5 (see also &K2 S38.5, S41.0) 3 3 V.42+MNP4 &K3 4 4 V.42 + V.42bis (compatible
  • ZyXEL U-336S | User Guide - Page 128
    Command bit dec hex Function and description Ref. 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-destructive, expedited break (
  • ZyXEL U-336S | User Guide - Page 129
    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/Voice with is *Dn pressed, modem will dial the S29 default number. 5 32 20 Enable Selective Reject in V.42 (Default) 6 64 40 Enable password protection to *W0 profile
  • ZyXEL U-336S | User Guide - Page 130
    control 0 0 Disable security function (Default) 32 20 Enable type 1 security with password check. (ZyXEL to ZyXEL only) 64 40 Enable type 1 security with password check and call-back (ZyXEL to ZyXEL only) 96 60 Enable type 2 security with password check 128 80 Enable type 2 security with
  • ZyXEL U-336S | User Guide - Page 131
    at 2400 next phase at 19200 4 16 10 Class 2 Fax mode DTE shifting: +FCON at current DTE, shift to 19,200 when entering into the next phase 5 32 20 Disable srambler/descrambler in V.26bis mode. Enables compatibility with older V.26bis modems which have no such unit (default) S40= bit dec
  • ZyXEL U-336S | User Guide - Page 132
    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 4 16 10 Disable V.17, 14,400 Fax in calling mode, no effect to answering mode &N32 5 32 20 Disable Data/Voice button 6 64 40 Disable 'RINGING'
  • ZyXEL U-336S | User Guide - Page 133
    ZyXEL 19200 in Multi- &N0 Auto mode 2 4 4 Disable cellular mode automatic &N0 transmit power adjustment (see also S49b0-3) 3 0 0 Enable cellular mode in Multi- &N0 Auto mode. 8 8 Disable cellular mode in Multi- &N0 Auto 6 64 40 Enable 1.5 sec, pause between off-hook and modem answering
  • ZyXEL U-336S | User Guide - Page 134
    the specified interval, in 20 ms units S48= bit dec hex Bit-mapped register +000 0 1 1 Cause CND information to be reported in raw format 1 2 2 Enable DATA ONLY mode. Auto-detect V.34/ZyX/V.32bis/V.22bis/V.2 3/V.21 Bell 103 when answering. If the connection try fails, the
  • ZyXEL U-336S | User Guide - Page 135
    Command bit dec hex Function and description Ref. times out. 2 4 4 Enable data calling tone (CNG) sending 3 8 8 Reverse the V.23 channel speed. &N12 Originate mode modem speed (Send/Receive) 1200/75; Answer mode modem speed (Send/Receive) 75/1200 4 16 10 (Work with &D1 command) DTR ON will
  • ZyXEL U-336S | User Guide - Page 136
    ) 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 Reports RING for data CNG tone 128 80 Reports RING 1 for data CNG tone 192 B2 Reports RING 3 for data CNG tone S52= bit dec
  • ZyXEL U-336S | User Guide - Page 137
    busy detection when dialing is proceeding (Default) 64 40 Enables busy detection in dialing period S62= bit dec hex Bit mapped register +000 0 0 0 Force the modem to use the new values of S18 to fix the baud rate when answering. 1 1 Force the
  • ZyXEL U-336S | User Guide - Page 138
    Code Option Table The following table shows the different options available when setting the ATXn command. 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
  • ZyXEL U-336S | User Guide - Page 139
    ATV0 ATV1 X0 X1 X2 X3 X4 X5 X6 X7 16 CONNECT 12000 %%%%@$ # 17 CONNECT 14400 %%%%@$ # 18 CONNECT 16800 %%%%@$ # 19 CONNECT 38400 % % % % @ 20 CONNECT 57600 % % % % @ 21 CONNECT 76800 % % % % @ 22 CONNECT 115200 % % % % @ 23 CONNECT 230400 % % % % @ 24 CONNECT 460800 % % % % @ 25
  • ZyXEL U-336S | User Guide - Page 140
    will be reported, n=Ring Type # (1-4) Result Code Chart Symbol Reference: V Supported % Reports the DTE Speed as: CONNECT DTE_Speed @ DCE _Speed/Error_Code/Error_Control † Example: CONNECT 14400/ARQ/ MNP5 † Data compression included. 'SREJ' is appended if a V.42 connection with
  • ZyXEL U-336S | User Guide - Page 141
    Connect Strings for Error Corrected Connections To enable the following numerical (ATV0) and verbose (ATV1) result codes when an error corrected connection is made, set S35 bit 7 to 1.(ATS35.7=1) Numerical V0 Verbose V1 50 CONNECT 51 CONNECT 1200 52 CONNECT 2400 53 CONNECT 4800 54
  • ZyXEL U-336S | User Guide - Page 142
    verify the line condition and the 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, DSP 128 Diagnostics & Troubleshooting
  • ZyXEL U-336S | User Guide - Page 143
    at least 10 seconds, and then turn the power on again. If the error condition persists, call the 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 Diagnostics & Troubleshooting 129
  • ZyXEL U-336S | User Guide - Page 144
    problem and will not affect modem data from the terminal or computer is sent through an RS-232 cable into the modem generates data from the modem itself instead of input data from the RS-232 interface. The data will This test can only be initiated when the modem is off-line. The following Bit Error
  • ZyXEL U-336S | User Guide - Page 145
    modem according to V.54. If the remote modem supports V.54 and is programmed to grant this kind of request, it will resend all of the received data back to the local modem. The local terminal or computer will receive all of the data the Throughput Meter of the initiated modem will change to a Bit
  • ZyXEL U-336S | User Guide - Page 146
    in 1/2 second intervals to indicate that the modem is handshaking or retraining. Line Condition Status Display Regarding data being transmitted over telephone line circuits, there are the speed, the higher the S/N ratio required. The modem measures the S/N ratio by 132 Diagnostics & Troubleshooting
  • ZyXEL U-336S | User Guide - Page 147
    channel and degrade the data validity. To avoid this situation, decrease the transmission power of the remote modem. For increased line operability, your modem's transmission power level recording the action or reaction the modem took when the line condition changed. Diagnostics & Troubleshooting 133
  • ZyXEL U-336S | User Guide - Page 148
    local modem's requests to change the rate. Block Retransmitted (BLR) The count of the blocks retransmitted (bad reception on the remote modem). FCS (Frame Check Sum) Errors (FRE) The count of the FCS errors received (block errors) (bad reception on the local modem). 134 Diagnostics & Troubleshooting
  • ZyXEL U-336S | User Guide - Page 149
    are a result of incorrect cabling or settings within your communications or fax software. This section provides a list of more common problems that you may encounter, followed by likely solutions. AT Command Set Problems Problem Your modem does not respond to AT commands. Solutions 1. Make sure the
  • ZyXEL U-336S | User Guide - Page 150
    . Problem You receive the ERROR result code after typing an AT command. Solution You may have typed a command that is not recognized by your modem or communications software. Command Echo Problems Problem You do not see any typed characters on your computer screen. 136 Diagnostics & Troubleshooting
  • ZyXEL U-336S | User Guide - Page 151
    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-336S | User Guide - Page 152
    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-336S | User Guide - Page 153
    Connection Problems Problem Your modem disconnects while ZyXEL Modem Reference Manual. 2. You may have subscribed to Call Waiting and received an incoming call that interrupted your data connection. See your telephone directory for information on disabling Call Waiting. Diagnostics & Troubleshooting
  • ZyXEL U-336S | User Guide - Page 154
    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-336S | User Guide - Page 155
    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-336S | User Guide - Page 156
    12 Connector Pinouts Phone Jack Pinouts The ZyXEL U-336S/SA modem features two RJ-11 phone jacks, one for 2- 105 CA 106 CB Pin/Signal Description Protective Ground (GND). Transmitted Data (TXD). Received Data (RXD). Request To Send (RTS). Clear To Send Direction DTE-DCE 142 Connector
  • ZyXEL U-336S | User Guide - Page 157
    115 DD 141 108/2 CD 108/1 140 125 CE 113 DA 142 Pin/Signal Description Direction DTE-DCE (CTS). Data Set Ready ← (DSR). Signal Ground (GND). Data Carrier Detected ← (DCD). Transmit Clock Signal ← (source: DCE). Synchronous Receive ← Clock. Local Analog → Loopback Test
  • ZyXEL U-336S | User Guide - Page 158
    shows the wiring of a modem Macintosh hardware handshaking cable: Mac Din 8 1 2 3 4 5 6 7 8 Modem DB 25 4 & 20 5 2 7 3 8 7 Description DTR to RTS and DTR, Hardware Handshaking Out CTS to CTS, Hardware Handshaking In TX- to TXD, Data sent GND, Ground RX- to RXD, Data received not connected GPI to
  • ZyXEL U-336S | User Guide - Page 159
    Connector Pinouts 145
  • ZyXEL U-336S | User Guide - Page 160
    Modem as Fax, 64 Fax Reception from a BBS, 85 Fax Standards, 65 Features, 2 Flash EPROM, 4, 90, 137 Upgrading, 137 Handshaking, 129, 141 Hyper Terminal, 14 Idle Screen state, 27 Indicator Lights, 128 Kernel Recovery, 138 LCD display, 7, 11, 27, 31, 33, 35 Leased Line Handshaking, 45 Auto, 46 Manual
  • ZyXEL U-336S | User Guide - Page 161
    Modem, Trouble Shooting Answer Problems, 134 AT Command Set Problems, 131 Command Echo Problems, 133 Connection Problems, 135 Data Transfer Problems, 135 Dialing Problems, 134 UART 16450, 22 UNIX, 2, 25, 114 Serial cable, 25 Software tips, 25 User Profiles, 21 V.25bis, 3, 40, 41, 43, 100, 106 ZyXEL
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U-336S and U-336SA
User’s Manual
Version 3.0
ZyXEL
T
OTAL
I
NTERNET
A
CCESS
S
OLUTION