U-336R/RE User’s Guide Version 1.0 (Mar.
ZyXEL Limited Warranty ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in materials or workmanship for a period of up to two (2) years from the date of purchase.
rights, and you may also have other rights which vary from state to state. Copyright ©1997 by ZyXEL The contents of this book may not be reproduced (in any part or as a whole) or transmitted in any form or by any means without the written permission of the publisher. Published by ZyXEL Communications Corporation. All rights reserved. Note: ZyXEL does not assume any liability arising out of the application or use of any products, or software described herein.
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 equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and the receiver.
company’s inside wiring associated with a single line individual service may be extended by 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.
1. The Council Directive 89/336/EEC of 3 May 1992 on the approximation of the laws of the member states relation to Electro Magnetic Compatibility. (EMC Directive) 2. Council Directive 91/263/EEC of 29 April 1991 on the approximation of the laws of the Member States concerning telecommunication terminal equipment. (The Telecom Terminal Equipment Directive) 3. 93/68/EEC of 22 July 1993 amending the Directives 89/336/EEC, 91/263 /EEC and 92/31/EEC.
• Product information: Visit our site on the World Wide Web: http://www.zyxel.com. • FTP: Information , such as ZyXEL software and ROM updates for North America can be found at this FTP address: ftp.zyxel.com For European and Asian versions and related files, use the address: ftp.zyxel.co.at • Postal Service: You can send written communications to the following address: ZyXEL Communications Corporation 6, Innovation Road II, Science-Based Industrial Park Hsinchu, Taiwan 300, R.O.C.
Contents ZyXEL Limited Warranty ii FCC Part 15 Information iii Information for Canadian Users iv Contacting ZyXEL vi 1 Introduction 1 What This Manual Covers 1 Modem Features 1 Standard Features 1 Intelligent Features 2 Fax Compatibility 3 Technical Specifications 3 Unpacking Your Modem 4 Enclosed Equipment 4 Required Equipment 4 Becoming a Registered Owner 5 2 Installation 7 U-336R/RE Modem Card 7 Required Steps for U-336R/RE Installation 9 Installing the modem card 10 Connect to phone lines 10 Connect t
Dialing using the ATD Command 17 Auto-Answer and Hook Controls 18 Making Your First Connection 18 Quick Tips when issuing AT Commands 19 Modem Result Codes 21 Viewing S Register Values 22 Changing S Register Values 22 Non-Volatile Memory 23 Storing Phone Numbers 23 Dialing Stored Phone Numbers 23 Saving Settings and User Profiles 24 Helpful Hints for PC Computers 24 Default Modem Settings for PC’s 25 ZyXEL Serial/Parallel I/O Card 25 Helpful Hints for Macintosh Computers 26 Special AT Command Settings for M
Connecting to a Leased Line 35 Line Type Setting 35 Power Level Setting 36 Leased Line Handshaking 36 Manual Connect 36 Auto Handshake 36 Leased-Line Dial Backup 37 Dial Backup 37 Aborting from Leased-Line Operation 38 Terminating a Leased Line Connection 38 6 Special Functions 39 Security Functions 39 Levels of Security 39 User Passwords 40 Remote Configuration 42 Caller Number Delivery (Caller ID) 43 Distinctive Ring 46 Extended Distinctive Ring (EDR) 47 Setting Up EDR 49 EDR Application Example 50 7 Fa
8 AT Command Set Summaries 77 Basic AT Command Set 77 Description of ATI2 Output: 80 Extended AT& Command Set 83 Extended AT* Command Set 89 9 Status Registers & Result Codes 92 S-Register Descriptions 92 Basic S-Registers "ATSn=x" 92 Extended S-Registers "ATSn=x" 93 Result Code Options 111 "ATXn" Result Code Option Table 111 Result Code Field Descriptions 113 Connect Strings for Error Corrected Connections 113 10 Diagnostics & Troubleshooting 116 Diagnostics 116 Power-On Self Test 117 Loopback Tests 118
Terminal Pinouts 133 Terminal Blocks 133 PC Serial Port Pinouts 134 Macintosh Serial Port Pinouts 135 13 Index 137 xii
1 Introduction What This Manual Covers Congratulations on the purchase of your U-336R/RE modem - one of ZyXEL's premier high-performance products. The U-336R/RE modem cards are world renown for their ability to maintain ultra high speeds and clear, quality connections while communicating around the globe. Modem Features No other 33.6 Kbps modem gives you so much for so little.
• 14 LED indicators (RE/RD). • 15 LED indicators (R). • Extended AT command set with V.25bis. • Operates on 2-wire dial-up or 2-wire leased line (RE). • Operates on 2-wire dial-up or 2/4-wire leased line (R). Intelligent Features • Automatic data, and fax call detection allows you to use a single telephone line to handle both voice and data calls. • Asynchronous and synchronous modes for reliable serial data communication. • Fast retrain with automatic fall-forward and fall-back.
• EDR (extended Distinctive Ring). • Flash EPROM memory lets you easily upload new firmware, providing you with easy access to new features. • ZyXEL exclusive Kernel Recovery Mode for no hassle recovery from failed flash uploads - no factory repairs. Fax Compatibility • EIA Class 1, 2, and 2.0 Fax commands. • 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.
• Line interface: 2-wire dial-up or 2-wire leased line (RE). • Line interface: 2-wire dial-up or 2/4-wire leased line (R). • Call progress monitoring: dial tone, busy, and ring back detection. • Audio Monitor: programmable volume control. Unpacking Your Modem Enclosed Equipment Before you proceed further, please check all items you received with your modem against this list to make sure nothing is missing. The complete package should include: • One U-336R/RE universal modem.
• Computer terminal. • Available PC serial port with a high-speed 16550 UART. • Standard "straight-through” RS-232 cable (pins 1-8, 20, 22). • Available telephone jack. • Available AC wall outlet. • Telephone line from your telephone company (dial-up or leased line). • Data and fax communication software. Becoming a Registered Owner Complete the pre-addressed Warranty Registration Card and place it in the mail. Registered owners will receive future product information and update announcements.
6 Introduction
2 Installation This chapter covers the steps required to install your U-336R/RE modem into a ZyXEL RS-1612 rack system. A separate comprehensive manual containing rack system information is included with your modem rack chassis. U-336R/RE Modem Card The U-336R front panel consists of fifteen LED indicators and two switches. The U-336RE front panel consists of fourteen LED indicators and two switches. The LEDs on the front panel, display the current status and configuration of the modem.
LED TXD Name Transmit Indicator RXD Receive Indicator CD Carrier Detect DTR Data Terminal Ready DSR Data Set Ready RTS Request to Send CTS Clear to Send OH Off Hook Indicator ORG Originate Mode Indicator Ring Indicator RI 8 Installation ON Blinking The DTE is sending data to modem for transmission. The modem is sending received data to the DTE. The modem senses a valid data carrier on the line. The attached computer is ready to send or receive data.
LED SQ Name Signal Quality ON Modem senses a good quality signal. Blinking Modem senses marginal signal quality. The following LED is for the U-336R only: LED LL Name Leased Line Mode Indicator ON Blinking Modem is in Leased Line Mode. There are two toggle switches on the U-336R/RE front panel.VOICE/DATA Toggles the modem on-line (off-hook, DATA) or off-line (on-hook, VOICE mode, the telephone set is connected to the line).
Installing the modem card The rack system in which you will install your modem has sixteen available modem slots. You may use any slot for a card without regard to the slot number or sequence. To install a card: 1. Hold the modem card by the front and slide it into an available slot. 2. Push the card gently but firmly until it seats. 3. Screw the modem card holding screws into place to secure the card in its slot.
• U-336R Section 3 (terminals 5 ,6 ,7 & 8) For leased line connection. Connect to Computers Each modem slot has a corresponding 25-pin RS-232 female connector on the rear panel. Connect a cable from the desired computer to the RS-232 connector for the desired modem. Hooking Up Power Connecting power should be the last thing you do before using the rack. To connect power follow the instructions below: 1. Plug one end of the power cord to the socket on the back panel. 2.
1496 modem. In many cases, the commands for these modems are identical. Select the following communication settings: Setting Baud rate Data bits Parity Stop bits Flow control Initialization string Port O NOTE: Value 57,600bps 8 None 1 Hardware AT&F COMn* WHEN SPECIFYING A PORT ASSIGNMENT, THE ‘N’ INDICATES THE COMPUTER SERIAL PORT TO WHICH YOUR MODEM IS ATTACHED. FOR EXAMPLE, IF YOUR MODEM IS CONNECTED TO SERIAL PORT 2, YOU WOULD SELECT COM2. 3.
10 for troubleshooting suggestions.
14 Installation
3 Basic Modem Operation This chapter covers the basic commands and techniques involved in modem operation. In many cases, this is the only information you will need in order to get up and running with communication software, and to start making connections with your modem. Understanding AT Commands The U-336R/RE communicates asynchronously with computers using AT commands. AT commands are used to configure and control your modem.
Terminal” program. This program provides a simple method to manually enter AT commands so you can do such things as “customize” the settings of your 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, and open the Hyper Terminal Program. The program will prompt you for a name and Icon to use for your new connection. Type the name Test Connection and press .
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. Normally, this command is only used to answer an incoming call made from another modem, thus the high pitched tone you will hear from the speaker. To abort the operation, press any key, or select “Disconnect” from the “Call” menu.
Pausing During Dialing: O NOTE: ATDT 9,,555 1212 THE PAUSE TIME FOR EACH COMMA IS DEFINED BY S REGISTER S8. DEFAULT IS 2 SECONDS PER COMMA.
Start the terminal program by double-clicking the Test Connection icon. When the terminal 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 will go off-hook, dial the number, and after a few seconds of negotiation tones you should be connected to our BBS. You will receive a login message asking for your name. For the purposes of this example you need not continue.
terminal window when you type, the modem’s echo setting 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 way or the other as follows: Command ATV0 ATV1 Description Select numerical result code. Select verbose result code.
AT Command Set/Type S-Register command S-Register bit-mapped command (set S- Example ATS0=1 ATS13.1=1 Register bit 1 equal to 1) S-Register inquiry command ATS0? Or ATS13.1? You may browse the lists of available commands for each command set by using the on-line help commands: AT$, AT*$, AT&$, and ATS$. Further detail on AT commands will be covered in the chapters that pertain to their use.
modem uses. By default, your modem uses result codes equivalent to the ATX5 command. The result code options will be covered more thoroughly in later chapters. Viewing S Register Values Status registers (or "S-registers") contain values that determine the modem’s operating characteristics. Whenever you send an AT command to your modem, you are actually changing the value of an S-register. You can use the Sr? command to view the value of S-register ‘r’.
Non-Volatile Memory Your modem 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 reason, your modem provides a number of user “Profiles” that can be accessed through simple AT commands.
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 the power-on profile. There are four profiles that can be changed by the user, and one factory default profile. The following table lists the syntax for the commands involved in storing, recalling, and viewing profile settings.
your software supports it, replace the 16450 UART with a 16550 model. This newer chip has an internal buffer and generates an interrupt for up to every 16 characters (several trigger levels are available). With this UART installed, you may drive your serial port at 57600 bps and above. While data is written from the transfer-buffer to your hard-disk, characters may be lost at the serial port. This is due to the fact that disk-access interrupts have a higher priority than serial port interrupts.
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 in Windows and other multi-tasking systems. The serial port has a 32-byte transmission and a 32-byte receival FIFO to increase communication program efficiency.
readily available as PD, shareware or commercial software. 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 any program which runs on your Macintosh. At the same time it allows automatic fax receiving.
Depending on your Unix setup, the cable and software used, you may have to disable carrier detection using AT&C0. Unix Software Tips In order to use your ZyXEL modem from a terminal screen 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 avaiable from several ftp-sites. Some archives also contain source files.
4 Synchronous Mode Operation This chapter introduces you to the use of the U-336R/RE for synchronous operation. The modem can be used as a synchronous modem when it is connected to a synchronous computer or terminal. It is of course necessary to make sure that the remote modem and system are also set to synchronous mode. Synchronous operation applies to all of the non-FSK modes the modem is supplied with. Before synchronous transfers are started, some initial settings should be made. V.
Syntax Command with Parameters* CRN CRN ** CRS CRS n PRN PRN n; RLN RLN*** DIC CIC CFI DIC CIC CFI XX INC VAL INV LSN INC VAL INV LSN n; RST RST Description Call request with number provided. Call request with number from memory, 0 # n # 49; n is the memory location. Saves to address n (0 # n #49). Requests list of all stored numbers. Ignores incoming call. Accepts incoming call. Call failure indication: ET Engaged Tone. NS Number is not stored.
carrier and sends the data to the receiving DTE along with the clock. There are three types of transmission synchronous clock sources to choose from: 1. The internal clock is the one that suits most applications and is the default; in this case, the clock signal is generated by the sending modem. 2. The slave clock is used when in remote digital loopback mode. 3. The external clock is a signal generated by the sending DTE.
Command State Options For synchronous data communication, there are two options you can choose from to define how the modem will operate in the command state. SYNC DATA AT&M1 SYNC 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.
4. Manual dial: Set the modem to synchronous mode (&M1 or &M3), then dial a number from a telephone set. When you hear the answer tone, type ATD (if &M1 is set). The modem will go into synchronous operation after connection. Answering from Synchronous Mode Auto-Answer Set the modem to synchronous mode. Set the S-register S0 to equal the number of rings before auto-answer occurs.
34 Synchronous Mode Operation
5 Leased Line Operation A leased line is a permanent telephone line connection between two fixed points. It can be dedicated copper wires or a leased telephone circuit from the telephone company. Four-wire leased lines use one pair of wires to transmit data and a second pair to receive. Twowire leased lines transmit and receive on the same pair of wires. The U-336R supports 2 and 4-wire leased lines while the U-336RE supports 2-wire leased lines.
Power Level Setting Your modem’s leased-line mode transmission power level can be adjusted from 0 dBm to -27 dBm in 1 dBm increments. AT-Command AT*P0 ... AT*P15 Description The default is -9dBm. The adjustable range is from 0 to -15dBm, effective in leased-line operation only. If bit 3 of S35 is 8set, this range will change to -12 to -27dBm. Leased Line Handshaking In a typical dial-up connection, the originating modem dials the number and waits for the answering modem's carrier signal.
configuration. Be sure that one modem is set to originate mode and the other to answer mode. AT-Command Description AT*M0 When operating over a leased line, modem will handshake in originate mode. (Default) AT*M1 When operating over a leased line, modem will handshake in answer mode. Leased-Line Dial Backup When a leased-line connection fails, the following actions may be taken by the modem: • Reattempt to connect on the leased line indefinitely if the dial backup option is disabled.
The originating modem will try to dial the number up to nine times or until a 3-minute time-out is activated. If the dial backup attempt fails, the originating modem will go back to try the leased line connection. If this fails, it will try the dial-up line again. It will try these two alternatives indefinitely. If the dial backup attempt succeeds, the value of S-register S34 determines the interval of the dial backup connection before going back to check the leased line.
6 Special Functions This chapter describes special features of the U-336R/RE, and offers instructions on how each is used. Security Functions Your modem provides security 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 2 security is used when the remote modem is any other brand.
• With level 1 security, the local modem will maintain the connection if the password is OK, otherwise the line disconnected. • With level 2 security, redial the phone number corresponding to the dial-in password. The line simply disconnects if the password does not match. User Passwords Fifty user passwords may be defined. The corresponding 50 dialback numbers are the modem’s 50 stored phone numbers. Any character (ASCII 0-127) can be used in the password, the maximum password length is 8 characters.
The following commands will enable different types and Verify: (Enter the new supervisor password again) ******** OK The command AT*Hn will modify the nth user password. You will be prompted to enter the supervisor password first and then be prompted to enter the nth user password. Levels of security: Command *G0 *G1 *G2 *G3 *G4 *G5 O NOTE: Function Disable security function. Enable type 1 and level 1 security, with password check. Enable type 1 and level 2 security, with password check and callback.
Remote Configuration Remote configuration for your modem 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 disconnected during this time. Local profile modification is done by loading this profile as the active settings and then modifying and saving the active settings back to the profile.
The remote profile read and write commands - *Rab and *Wab only work in the on-line condition. The connection speed and mode do not matter. The remote modem must be set to accept remote configuration by executing the AT*F1 command. The AT*F0 command will set the modem up to deny remote configuration requests.
There are two kinds of caller information message formats sent by the phone company: • One is the single message format which includes date, time, and caller ID. • The other is the multiple message format which also includes the caller name as registered with the phone company. The command ATS40.2=n is used to enable (n=1) or disable (n=0) the Caller ID detection function. The default is disabled. Enable it only when you have this service and want to enable its detection.
Brent Harper RING In the multiple message format, if the caller’s number and name are available, the ring message will display both: RING TIME: MM-DD hh:mm CALLER NUMBER: CALLER NAME: RING Here is an example: RING TIME: 04-28 12:30 CALLER NUMBER: 7135551414 CALLER NAME: Jordan Chu RING If the caller number and name are not available, the ring message will appear as follows: RING TIME: 04-28 12:30 REASON FOR NO NUMBER: OUT_OF_AREA REASON FOR NO NAME: PRIVACY RING The last CND messag
O NOTE: PLEASE REFER TO THE BELLCORE TECHNICAL ADVISORY DOCUMENT TR-NWT000030 FOR THE EXACT DATA FORMAT. THE ABOVE CALLER ID SCHEME APPLIES TO THE NORTH AMERICA ONLY. DIFFERENT COUNTRIES MAY EMPLOY DIFFERENT CALLER ID SCHEMES, MAKE SURE THE SCHEME USED IN YOUR COUNTRY IS SUPPORTED BEFORE USING THE CALLER ID FEATURE. FOR MOST OTHER CALLER ID SCHEMES, ONLY THE CALLER TELEPHONE NUMBER IS PROVIDED. Distinctive Ring Distinctive Ring is a phone service that may be offered by your phone company.
ring types is the two-second ON part of the ring signal. It comprises a long, double short, or triple short ring. S-register S40 bits 3-6 are used for distinctive ring control. Each bit controls the answering of a particular ring type. Setting a bit to “1” (on) enables answering, setting it to “0” (off) rejects the ring. Note that the ring may still be heard even if it is not counted as an accepted ring by the modem.
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 missed.
to press the START 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 EDR The new EDR can 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 are defined in S-register S51.
EDR detection (either CNG or DTMF tones) will be disabled once detection occurs. However, a customer’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.
4. Set S51.2=1 to enable DTMF tone detection. It is reported as RING. If the remote fax machine does not generate the CNG tone, ask a fax caller through your answering 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.
52 Special Functions
7 Fax Operation In the sections below, we will describe how the U336R/RE works as a fax machine, the ITU-T T.30 fax protocol, the Class 1, 2, and 2.0 fax commands and ZyXEL extended fax AT commands. Also covered are the status report result codes, the flow control protocol associated with ZyXEL fax AT commands, and some specific fax applications. The instructions for using the included modem/fax/voice utility program are included on the software disk.
ITU-T T.30 Fax Protocol The U-336R/RE takes full control of the ITU-T T.30 fax protocol, also known as G3 fax handshaking signals and procedures. Your modem initiates and terminates fax calls, manages communications sessions, and transports image data relieving the computer fax software of the T.30 protocol handling. You modem allows for fax speeds up to 14400 bps when transmitting to a fax machine which complies with the V.17 fax standard.
Class 1 commands control on-line modem negotiation while Class 2 commands allow the modem to do many negotiations simultaneously. The Class 1 protocol uses the modem to transmit fax data only. The complete organizational overhead for this protocol is handled by the connected computer. The Class 1 command set is also called the TIA-578 standard. Several revisions of the class 2 standard exist. Implementations conforming to different revisions may not work together. A formally approved version is the Class 2.
Command Value +FRS=n 0-255 +FTM= +FRM= +FTH= +FRH= Description units. Wait for silence, in 10 ms units. Transmit data with carrier. Receive data with carrier. Transmit HDLC data with carrier. Receive HDLC data with carrier. The parameter for the preceding commands take the following values: Value Modulation Speed Requirements 3 V.21 ch. 2 300 Required for FTH & FRH. +FTH and +FRH support value 3 (V.21 ch. 2 / 300 bps) only. 24 V.
Command Syntax += +=? +? Description Execute a command or set a parameter. Read permissible settings. Read current setting. Supported Commands (per TIA PN2388 8/20/90) Command +FAA=n +FBADLIN= +FBOR=n +FBUF? +FCIG="string" +FCLASS=n +FCON +FCQ=n Value Description Auto-answer mode parameter: n=0 Answer as set by +FCLASS. n=1 DCE answers and auto-determines type.
Command Value Description parameter. n=0 No copy quality check capability. n=1 Only check 1D phase C data. n=2 Check both 1D and 2D phase C data. +FCR=n "Capability to receive" parameter n=0 DCE will not receive message data or poll a remote device. n=1 DCE receives message data or polls a remote device. +FDCC=vr,br,wd DCE capabilities parameters. ,ln,df,ec,bf,st vr=0 Vertical resolution: Normal; 98 lpi. vr=1 Vertical resolution: Fine; 196 lpi. br=0 Bit rate: 2400 bit/s; V.27ter.
Command Value bf=0 st=0 st=1 st=2 st=3 st=4 st=5 st=6 st=7 +FDCS=vr,br,wd, ln,df,ec,bf,st +FDIS=vr,br,wd,l n,df,ec,bf,st +FDR +FDT=df,vr,wd, ln +FET=n n=0 n=1 n=2 n=4 n=5 n=6 Description Disable binary file transfer. Minimum scan time/line: 0 ms. Minimum scan time/line: 5 ms. Minimum scan time/line:10 ms (normal); 5 ms (fine). Minimum scan time/line:10 ms. Minimum scan time/line:20 ms (normal); 10ms (fine). Minimum scan time/line:20 ms. Minimum scan time/line:40 ms (normal); 20ms (fine).
Command +FK +FLID="string" +FLO=n +FLPL=n +FMDL? +FMFR? +FMINSP=n +FPHCTO= +FPTS=n 60 Fax Operation Value Description Regular fax abort command. Local ID string parameter. Flow control options: n=0 No flow control. n=1 Set XON/XOFF software flow control. n=2 Set CTS/RTS hardware flow control. Document for polling command: n=0 The DTE has no document available for polling. n=1 Indicate a document available for polling. Request DCE model. Request DCE manufacturer .
Command Value Description n=5 Page good; procedure interrupt requested. +FREL=n Phase C received EOL alignment: n=0 The EOL patterns are bit aligned as received. n=1 The last received bits of EOL patterns are byte aligned by the DCE, with necessary zero fill bits inserted. Refer to TIA PN-2388 for details. +FREV? 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.
Response t +FET:n Value Function and Description Post page message response; refer to the +FET=n command. +FHNG:n Call termination status response. n=00 Normal and proper end of connection. n=10 Transmit error on phase A hang up code. n=20 Transmit error on phase B hang up code. n=40 Transmit error on phase C hang up code. n=50 Transmit error on phase D hang up code. n=70 Receive error on phase B hang up code. n=90 Receive error on phase C hang up code. n=100 Receive error on phase D hang up code.
Class 2.0 Command Set Command Syntax += +=? +? Description Execute a command or set a parameter. Read permissible settings. Read the current setting. Supported Commands Command +FAA=n Value Description Auto-answer mode parameter: n=0 DCE answers as set by +FCLASS. n=1 DCE answers and auto-determines call type. +FBO=n Phase C data bit order: n=0 Select direct bit order. n=1 Select reversed bit order in receiving mode for phase C data.
Command +FCR=n +FCT=n +FDR +FDT +FEA=n +FIE=n 64 Fax Operation Value Description tq=0 DCE Transmit Copy Quality Checking disabled. tq=1 DCE Transmit Copy Quality Checking enabled. tq=2 DCE Transmit Copy Quality Correction enabled. "Capability to receive" parameter n=0 DCE will not receive message or poll a remote device. n=1 DCE receives message data or polls a remote device 0-255 DTE phase C time-out parameter. n=0255, 1s units.
Command Value Description and reported using the +FVO response. +FIP Initialize facsimile parameters to factory default. +FIS=vr,br,wd Current session parameter. refer to ,ln,df,ec,bf,st +FDCC Class 2 command in previous section parameter settings. +FKS Session termination command. +FLI="string" Local ID string parameter. +FLO=n Flow control options: n=0 No flow control. n=1 Set XON/XOFF software flow control. n=2 Set CTS/RTS hardware flow control.
Command Value Description (+FCS parameter is still loaded) tpr=1 Transmitter Parameters are reported. +FCS: response reports are generated. idr=0 ID Strings are not reported. +FTI: +FCI: and +FPI: response reports are suppressed. idr=1 ID Strings are reported. +FNF:, +FNS: and +FNC: response reports are generated. nsr=0 Non-standard frames are not reported. +FTI: +FCI: and +FPI: response reports are suppressed. nsr=1 Non-standard frames are reported. +FTI:, +FCI: and +FPI: response reports are generated.
Command +FSP=n Value 0-64 (HEX value) Description with negotiated number of pixels) required for a page considered acceptable. The percentage of good lines would be computed by the equation: 100 x ( - ) / lc: total line count as reported in the +FPS: response. bl: bad line count as reported in the +FPS: response. If the resulting value is less than the value in , the page is unacceptable. cbl= Specify the maximum tolerable number of 0-FF consecutive bad lines.
Response Function and Description procedure interrupt requested. ppm=4 Another document next, procedure interrupt requested. ppm=5 No more documents or pages, procedure interrupt requested. +FHS: Call termination status: hsc= Call placement and termination. Refer to 0-0F TIA-592 for details. hsc= Transmit phase A and miscellaneous 10-1F errors. Refer to TIA-592 for details. hsc= Transmit phase B hang up codes. Refer 20-3F to TIA-592 for details. hsc= Transmit phase C hang up codes.
Response Value +FNS: "NSS FIF string" +FPI: "CIG ID string" +FPO +FPS:ppr,lc,b lc,cblc,lbc ppr=1 ppr=2 ppr=3 ppr=4 ppr=5 +FTC:vr,br,w d,ln,df,ec,bf, st +FTI: "TSI ID string" +FVO Function and Description Report NSS (non-standard Setup) frame. Report remote ID response-Polling Station ID (CIG). Remote polling indication. .30 phase C page reception response: Received page good. Page bad; retrain requested. Page good; retrain requested. Page good; remote request for procedure interrupt accepted.
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 computer. The default serial connection speed is 38400 bps, and it is higher than the fax link rate. CTS/RTS hardware flow control is used to regulate the data flow.
Command #B2 #B3 Function modem will wait for DC2 at the beginning of every page. The DTE software should detect the page separator RTC and then sends the DC2 to receive the next page of fax data. This mode is used with a BBS receiving faxes. This mode is for the polling feature of the modem. In this mode, the modem will send a polling signal to the remote fax device to ask to receive a fax from the remote fax device.
Command #C2 #C3 #C4 #C5 #C6 #C7 #P Function Set minimum scan line time capability of the receiver: 10 ms at 3.85 line/mm, T(7.7)=T(3.85). Set minimum scan line time capability of the receiver: 20 ms at 3.85 line/mm, T(7.7)=1/2 T(3.85). Set minimum scan line time capability of the receiver: 40 ms at 3.85 line/mm, T(7.7)=T(3.85). Set minimum scan line time capability of the receiver: 40 ms at 3.85 line/mm, T(7.7)=1/2 T(3.85). Set minimum scan line time capability of the receiver: 10 ms at 3.
CONNECT FAX 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: Field Snnnn Vn Tn Rn Ln Cn P Description Fax connection speed; nnnn is a 4-digit number representing the connection speed. nnnn =1440, 1200, 9600, 7200, etc., 1440 and 1200 stand for 14400 and 12000. Vertical resolution; n = 0 or 1. Coding scheme; n = 0 or 1.
The basic AT commands ATV0 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, your modem 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.
Fax Reception from a BBS Your modem can automatically detect data and fax calls and allow BBS software to receive faxes on the same phone line. To allow your BBS to receive incoming faxes, make the following set-up changes in your BBS: 1. Add the string #B1+FCLASS=6 to the init string. Be sure the +FCLASS=6 command is the last command. 2. Change one of the messages in the list to CONNECT FAX. 3. Set the external mail string to ZyXEL and give it an error level. 4.
String 1 ZyXEL 2 3 Error Level 100 The following is a sample setting in the BINKLEY.CFG file for a Binkley system.
8 AT Command Set Summaries Basic AT Command Set Command Options Function & Description Ref. A/ Re-execute the last command once. A> Re-execute the last command once or repeat the last call up to 9 times. (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 A Go on-line in answer mode. (See also S39.2, S43.6) Bn Handshake option.
Command Options Function & Description , Pause for a time specified in S8. Remaining digits will be dialed as inband DTMF. ; Return to command state after dialing. ! Hook flash. @ Wait for a 5 second silence before proceeding. R Reverse handshake (go on-line in Answer mode). W Wait for second dial tone. Remaining digits will be dialed as inband DTMF. DL Repeat last ATD command.
Command Options I12 Ln n=0-7 4* Mn M0 M1 * M2 M3 Ref. Nn S24.0-2 O O1 Qn Sr.b=n Sr.b? Sr=n Sr? T UPX Function & Description Display physical layer status. Speaker volume control. The higher the value, the higher the volume. Speaker control. Speaker always OFF. Speaker ON until call is answered. Speaker always ON. Speaker ON after the last digit is dialed out and OFF when carrier is detected. n=0-7 Ring volume control.'N0' will 5* disable the audio ring function. Return to on-line state.
Command Options Function & Description Ref. Vn Sets display type for Result Codes. S23.6 V0 Display result code in numeric form. (See also S35.7 and the result code table of 'ATXn') V1 * Display result code in verbose form. Xn n=0-7 Result code options, see the Options S23.3-5 5* Table. Zn n=0-4 Reset modem and set power-on S15.5-7 profile. Zn Reset modem and load user profile n (0-3). Z4 Reset modem and load factory settings. $ Basic command summary help. &$ Extended 'AT&' command summary help.
Max Outstanding 8 Max Block Size 256 Retrain Requested 0 Link Duration 1 Retrain Granted 0 T401 Timeouts 0 T402 Timeouts 0 FCS Errors 0 Round Trip Delay 10 Xmitter Underrun 0 Receiver Overrun 0 Last Speed/Protocol 14400/ARQ/V42b Connect Disconnect Reason Local Hangup Data Type Chars Octets Block Description Data received from or sent to DTE (PC). (Formatted as 7,E,1 or 7,O,1 or 8,N,1 etc.) Data received from or sent to remote modem in error control mode.
Output Parameter Chars Received Octets Sent Octets Received Blocks Sent Blocks Received Blocks Resent Max Outstanding Max Block Size Retrains Requested Link Duration Retrains Granted T401 Time-outs T402 Time-outs FCS Errors Round Trip Delay Xmitter Underrun Receiver Overrun Disconnect Reason 82 AT Command Set Summaries Output Value Description Number of characters modem has sent to DTE. Number of data bytes sent to remote modem Number of data bytes received from remote modem.
Output Parameter Output Value Description Carrier Lost On-Line (Not disconnected) Resent Expiration Protocol Error Break Time-out DTR Dropped Carrier Lost 1 Carrier Lost 2 (Remote (No handshaking hang-up, busy tone) response) Keyboard Abort Security check Inactivity. ATH command D/V hang up. Extended AT& Command Set Command Options Function & Description &Bn Data rate, terminal-to-modem. (DTE/DCE) &B0 DTE rate follows connection rate. (See also S44.
Command Options Function & Description &D3 Same as &D2 but DTR OFF causes the modem to hang up and reset from profile 0. &F Load factory settings to RAM as active configuration. &Gn Guard tone options. &G0 * No guard tone (within USA, Canada). &G2 1800 Hz guard tone. &Hn Data flow control, DTE/DCE. &H0 Flow control disabled. &H3 * Hardware (CTS/RTS) flow control. &H4 Software (XON/XOFF) flow control. &Jn Type of Phone line. &J0 Single phone line, RJ11. &J1 Multiple phone/modem line, RJ12/RJ13.
Command Options Function & Description Ref. buffering. &M1 Asynchronous command, synchronous data. &M2 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 and cellular modes. (See also S38.4, S43.0, S43.1, S43.3 and S48.5) &N1 V.
Command Options Function & Description Ref. &N11 V.26bis 2400 (models with 4-wire leased lines only) &N12 V.23 1200/75 (See also S48b3, S52b7) &N13 V.23 600/75 (See also S52b7) &N14 V.22bis 2400/1200 &N15 V.22 1200 &N16 V.21 300 &N17 V.32bis 14400/12000/9600/7200/4800 &N18 V.32bis 12000/9600/7200/4800 &N19 V.32bis 7200/4800 &N24 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).
Command Options &N66 &N67 &N68 &N69 &N70 &N71 &N72 &N73 &Pn &P0 * &P1 &Rn Ref. &Sn S21.3 &Tn Function & Description V.34 19200 V.34 16800 V.34 14400 V.34 12000 V.34 9600 V.34 7200 V.34 4800 V.34 2400 Pulse dial make/break ratio. make / break, 39% / 61% make / break, 33% / 67% RTS (Request To Send) function selection &R0 CTS tracks RTS, response delay is set in S26. &R1 * Ignore RTS, assumes RTS always ON. Data Set Ready (DSR) function selection. &S0 * DSR overridden, DSR always ON.
Command Options Function & Description Ref. &T6 Initiate Remote Digital Loop-back (RDL) test. &T7 Initiate Remote Digital Loop-back with self test (RDL+ST). &T8 Initiate Analog Loop-back with self test. (ALB+ST). &Vn View profile settings. &V0 View current active settings. &Vn View the (n-1) user profile 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.
Command Options Function & Description Ref. &Y2 Nondestructive, unexpedited. &Z? Display all the phone numbers stored in non-volatile RAM. &Zn=s n=0-49 Write phone number/s to NVRAM at location n (n=0-49) use AT*Dn or ATS29=n to set the default dial pointer. Extended AT* Command Set Command Options Function & Description *Bn Dial-backup selection. *B0 * Disable dial-backup. *Bn Enable dial-backup and set dialbackup pointer at telephone directory location (n-1).
Command Options Function & Description *Fn Remote configuration enable. *F0 * Deny remote configuration. *F1 Accept remote configuration (Remote Digital Loop-back must be granted, &T4). *Gn Security function selection. *G0 * Disable security function *G1 Enable type 1 security, with password check (ZyXEL to ZyXEL only). *G2 Enable type 1 security, with password check and call back (ZyXEL to ZyXEL only). *G3 Enable type 2 security, with password check.
Command Options Function & Description Ref. *M1 Set to Answer mode. *Pn n=0-15 Set leased line transmission power S17.1-4 *P11 * level; ranges from 0 dBm to -15 dBm (default: -11 dBm) (see also S35.3). *Qn Action taken when line quality S27.6-7 changes. *Q0 No action to poor signal quality. *Q1 Retrain action taken if signal quality is poor. (See also S41.2) *Q2 * Adaptive rate, automatic fall-back or forward. *Q3 Disconnect if signal quality is poor. *Rab Read remote profile “b” to local user S36.
9 Status Registers & Result Codes S-Register Descriptions In most bit-mapped S-registers, the default bit value is 0. Non-0 default values are followed by an asterisk. In some cases, default values are shown in the reference column preceded by +. Some bits are reserved for factory use and should not be changed. Basic S-Registers "ATSn=x" Command Function & Description S0= Set the number of rings on which the modem will answer. 0 value disable auto-answer.
Command Function & Description “W” dial modifier to wait for the dial tone. (See also S41b4) S7= Set duration, in number of seconds modem waits for a carrier. S8= Set duration, in seconds, for pause (,) option in Dial command and pause between command re-executions for Repeat (>) command. S9= Set duration, in tenths of a second of remote carrier signal before recognition (Ignored if in non-FSK or half-duplex operation).
Command bit 3,2 5,4 7,6 S15= bit 0,1 2 4,3 7-5 dec hex Function and description back test request. 2 2 Deny Remote Digital Loopback test. 0 0 Dial-up line (Default). 4 4 2-wire leased line. 8 8 4-wire leased line. 0 0 Internal clock (Default). 16 10 External clock. 32 20 Remote clock. 0 0 Asynchronous data with buffering (Default). 64 40 Asynchronous command, synchronous data. 128 80 Direct asynchronous, no data buffering. 192 C0 Synchronous dec hex Bit-mapped register. 0 0 Even parity.
Command bit S16= S17= bit 4-1 5 7,6 S18= dec hex Function and description Ref. 96 60 Profile 3 as active settings Z3 after power on. 128 80 * Factory default as active Z4 settings after power on dec hex Test status register. +000 0 0 No test in progress. &T0 1 1 Loop-back test in progress &T1 3 3 Local Digital Loop-back test &T3 in process. 6 6 Remote Digital Loop-back &T6 test in process. 7 7 Remote Digital Loop-back &T7 with self-test in process. 8 8 Analog Loop-back with self &T8 test in progress.
Command bit S19= S20= dec hex Function and description value settings (n) the same as S20. dec hex Modem connection mode, same. 0-73 0-49 setting value as 'AT&Nn' command. dec hex DTE speed (bps). Auto detected from AT Command.
Command bit dec hex Function and description Ref. 25 19 62400 bps 26 1A 41600 bps 27 1B 31200 bps 28 1C 24960 bps 29 1D 20800 bps 46 2E 921600 bps Note: 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 *E1 modem error control handshake fails. 1-2 0 0 Speaker always OFF. M0 2 2 Speaker ON until carrier is M1* detected (default).
Command bit 6-7 S23= bit 0 1 2 3-5 dec hex Function and description 32 20 Ignore RTS (CTS always ON) in synchronous mode. (Default). 0 0 Assume DTR always On. 64 40 108.1, DTR OFF-ON transition causes dial of the default number. 128 80 108.2 Data Terminal Ready, DTR OFF causes the modem to hang up and return to command state. 192 C0 108.2, DTR OFF causes the modem to hang up and reset the modem to profile 0 after DTR dropped. dec hex Bit mapped register. 0 0 Command echo disabled.
Command bit 6 7 S24= bit 2-0 6-4 S25= S26= S27= bit 0-2 dec hex Function and description Ref. 48 30 ATX6, error control result X6 code enabled. 56 38 ATX7, error control result X7 code enabled. 0 0 Display result code in V0 numeric format (see S35.7) 64 40 Display result code in V1 verbose format. 0 0 Modem returns result code Q0 128 80 Modem does not return Q1 result code (see also S40.1) dec hex Bit mapped register. 0-7 0-7 Ring Volume control, N0-7 increment of 2 in decimal value.
Command bit 3-5 6-7 S28= bit 0 4-5 7 dec hex Function and description Ref. 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 &K4 with &K2) 0 0 Flow control disabled. &H0 24 18 Hardware (RTS/CTS) flow &H3 control. 32 20 Software (XON/XOFF) flow &H4 control. 40 28 Reserved &H5 Signal quality 0 0 No response to poor signal *Q0 quality.
Command bit S29= S31= S32= S35= bit 0 1 2 3 4 5 6 dec hex Function and description bps communication. 0-49 0-31 Set default dial phone number pointer, use AT&Zn=s to store phone numbers. 00-FF Holds the ASCII decimal 255 value of the XON. 00-FF Holds the ASCII decimal 255 value of the XOFF. dec hex Bit mapped register. 1 1 Use CELL 4800T trells coded 4800 for V.32 4800 (available with cellular mode only). 2 2 Disable aborting from terminal during modem handshaking. 4 4 V.26 alternative A.
Command bit 7 S36= bit 0 1 7-5 dec hex Function and description password will be requested. This bit in profile 0 also protects the supervisory password from a hardware reset. 128 80 Enable extended numerical result codes from 50-71 when an error corrected connection is made. Use with ATV0. (see result code table) dec hex Bit-mapped register. 0 0 Deny remote request for configuration (Default). 1 1 Grant remote request for configuration. 0 0 Write from local profile a to remote profile b.
Command bit S37= S38= bit 3-0 7-4 bit 0 3 4 S39= 5 bit 2 3 4 dec hex Function and description 128 80 Enable type 2 security with password check and callback. 160 A0 Enable type 2 security with password check and callback, remote site enters the call-back number. dec hex Bit-mapped register for remote configuration using panel menu control. 0-5 0-5 Remote profile number. 0-80 0-50 Local profile number. dec hex Bit mapped register. 1 1 Repeatedly dialing default number.
Command bit S40= bit 1 2 3 4 5 6 S41= bit 0 2 3 4 5 6 dec hex Function and description +FCON at current DTE, shift to 19,200 when entering into the next phase. dec hex Bit mapped register. 2 2 No result code displayed in answer mode. 4 Enables caller ID detection 8 Enables type 1 ring detection. 16 Enables type 2 ring detection. 32 Enables type 3 ring detection. 64 Enables type 4 ring detection. dec hex Bit mapped register. 1 1 Special MNP compatibility (see also S27.0, S38.5).
Command bit 7 S42= bit 1 2 3 4 5 6 7 S43= bit 0 1 2 3 6 dec hex Function and description Ref. 128 80 Ignore calling tone, not to be used as fax detection. dec hex Bit mapped register. +000 2 2 Enables throughput averaging. 4 4 CND message will be forced on even if AT02 is set. 8 8 Disable escape sequence code in answer mode. 16 10 Disable V.17, 14,400 Fax in calling mode, no effect to answering mode &N32 32 20 Disable Data/Voice button 64 40 Disable ‘RINGING’ result Xn code.
Command bit 7 S44= bit 3 4 5 6 7 dec hex Function and description Ref. between off-hook and modem answering. 128 80 Modem hang-up if the line condition does not permit modem to run highest speed set by ‘&Nn’ command. dec hex Bit mapped register. +000 8 8 ATDSn initiates auto-dial of DSn the stored numbers consecutively until connection is made. 16 10 DSR follows DTR (see also &S1 S41.5). 32 20 Enable V.13 half-duplex simulation in synchronous mode.
Command bit S45= S46= S48= bit 0 1 2 3 dec hex Function and description Ref. (discontinuous) ring-back detection. dec hex Delay during which the +087 00-FF CND silence detection is 255 disabled, in 20 ms units. (See also S46) dec hex CND silence detection +003 interval. 00-FF To process the CND, silence 255 must be detected for the specified interval, in 20 ms units. dec hex Bit-mapped register. +000 1 1 Cause CND information to be reported in raw format. 2 2 Enable DATA ONLY mode. Auto-detect V.
Command bit 4 S49= bit 3-0 7 S50= S51= bit 1-0 dec hex Function and description Ref. 16 10 (Work with &D1 command) DTR ON will have the modem dial the default number and DTR OFF will have the modem hang-up and reset to profile 0. When the modem is idle (waiting for command), it will not dial any number when DTR changes from ON to OFF. dec hex Bit-mapped register. +006 0-15 0-F Set cellular mode transmit power level -9 to -24 dBm. (See also S43b2). 0 0 For cellular mode only.
Command bit 3-2 5-4 7-6 S52= bit 4-3 7 dec 1 2 3 0 4 hex 1 2 3 0 4 Function and description Ref. Reports RING twice. Reports RING four times. Reports RING six times. Disables DTMF tone. Reports RING for a DTMF tone. 8 8 Reports RING ‘DTMF’ for a DTMF tone. 12 0C Reserved. 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. 0 0 Disables data CNG tone detection.
Command bit S56= S57= bit 4 6 S62= Bit dec bit 0 dec hex Function and description signal of the V.23 handshaking sequence (Default). 128 80 Select ‘Space’ as the first signal of the V.23 handshaking sequence. dec hex 00-FF Hook flash detect time, in 255 units of 10ms, country specific. dec hex Bit-mapped register. 16 10 Enables the reporting of Class 1 capability in the response to +FCLASS=?. 0 0 Disabled busy detection when dialing is proceeding (Default).
hex +nnn Note: Equivalent Hexadecimal value. Factory default when listed in 'Reference' column. 'AT' is omitted when an AT command is referred to in the 'Reference' column.. Result Code Options "ATXn" Result 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 X0 X1 X2 X3 X4 20 CONNECT 57600 % % % % 21 CONNECT 76800 % % % % 22 CONNECT 115200 % % % % 23 CONNECT 230400 % % % % 24 CONNECT 460800 % % % % 25 CONNECT 921600 % % % % 26 CONNECT 307200 % % % % 27 CONNECT 153600 % % % % 28 CONNECT 102400 % % % % 29 CONNECT 61440 % % % % 30 CONNECT 51200 % % % % 31 CONNECT 624000 % % % % 32 CONNECT 124800 % % % % 33 CONNECT 62400 % % % % 34 CONNECT 41600 % % % % 35 CONNECT 31200 % % % % 36 CONNECT 24960 % % % % 37 CONNECT 20800 % % % % 38 CONNECT 33600 % % % % 39
$ # † DCE_Speed/Error_Control † Example: CONNECT 38400/V.32bis 14400/V.42bis CONNECT DCE_Speed[/Error_Code] Example: CONNECT 14400/ARQ CONNECT DCE _Speed/Error_Code/Error_Control † Example: CONNECT 14400/ARQ/ MNP5 Data compression included. 'SREJ' is appended if a V.42 connection with selective reject is established.
Numerical V0 53 54 55 56 57 Verbose V1 CONNECT 4800 CONNECT 7200 CONNECT 9600 CONNECT 12000 CONNECT 14400 114 Status Registers & Result Codes Numerical V0 61 62 63 64 65 Verbose V1 CONNECT 24000 CONNECT 26400 CONNECT 28800 CONNECT 31600 CONNECT 33600
Status Registers & Result Codes 115
10 Diagnostics & Troubleshooting Diagnostics The U-336R/RE is equipped with several diagnostic capabilities: • Power-on Self Test • Analog Loop-back Test • Analog Loop-back with Self-Test • Local Digital Loop-back Test • Remote Digital Loop-back Test • Remote Digital Loop-back with Self-Test ∗ Line Condition Status Display ∗ Re-Transmission Indicator ∗ Throughput Display ∗ Link Status Report The diagnostic tests listed above apply to several modes of operation: asynchronous or synchron
O NOTE: * ITEMS APPLICABLE EXCLUSIVELY TO U-336R INSTALLED IN RS-1612 RACK SYSTEM. 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 code checksum, DSP RAM memory, EEPROM, digital circuits, and the analog circuit calibrations. If successful, the TST LED will be on during, and off after the test. If the test fails the SQ LED will flash.
8 FR CALIBRATION FAIL.... Analog circuit calibration error. Loopback Tests The Analog Loopback Test, Local Digital Loopback Test, Remote Digital Loopback Test can all be initiated with AT commands from the terminal. Use the AT&T0 command to terminate the test. Analog Loopback (AT&T1) This test can check almost every part of the modem and the RS-232 cable except the telephone line outgoing interface.
received from the remote modem will be returned to the remote modem. This test is applicable when the remote modem does not provide V.54 Remote Digital Loopback capability. This test can be initiated by the local modem when the modems are on-line. Remote Digital Loopback Test (AT&T6) This test will request the remote 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 V.
Dialing Indicator The V34 LED will flash on and off for 1/2 second intervals to indicate that the modem is dialing. This flash will continue after dialing until a carrier is detected. Therefore, the V34 LED will also flash during leased-line modem connections when one modem is trying to handshake but the other modem is not turned on. Handshaking And Retrain Indicator The V34 LED will flash on and off for in 1/2 second intervals to indicate that the modem is handshaking or retraining.
Received Signal Power Level (RX) This reading is expressed in 1 dBm resolution. The modem measured receiving signal power is generally within 1-2 dBm of the actual value with relative accuracy. The receiver sensitivity specification for your modem is -43 dBm. Strong signal power could cause signal saturation in the channel and degrade the data validity. To avoid this situation, decrease the transmission power of the remote modem.
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. FRN Request (FR) The count of the local modem's requests to change the rate. Block Retransmitted (BR) The count of the blocks retransmitted (bad reception on the remote modem). FCS (Frame Check Sum) Errors (FE) The count of the FCS errors received (block errors) (bad reception on the local modem).
Retrain Requested 0 Link Duration 1 Retrain Granted 0 T401 Timeouts 0 T402 Timeouts 0 FCS Errors 0 Round Trip Delay 10 Xmitter Underrun 0 Receiver Overrun 0 Last Speed/Protocol 14400/ARQ/V42b Connect Disconnect Reason Local Hangup This Link Status Report is very helpful in finding the link condition and identifying problems with the link. Following are explanations for each item and the terminology used above.
Chars Received Characters received by the modem from the line and sent to the DTE. Octets Sent Data bytes sent to the remote modem. Octets Received Data bytes received from the remote modem. Blocks Sent Blocks sent to the remote modem. Blocks Received Blocks received from the remote modem. Blocks Resent Number of blocks resent because of error. If there are too many resends, it may be a bad line or protocol incompatibility. Max Outstanding Error control protocol parameter.
T401 Timeouts and T402 Timeouts These are for the manufacturer checking link layer operation. T401 and T402 are timers used in MNP4 or V.42. T402 will count when the modem is connected in the idle state with no data to transmit or receive. FCS Errors Frame CheckSum Errors/number of block errors. A lot of FCS errors indicate a bad line. Round Trip Delay Round trip delay between modems in T (1/2400 sec) units. Normally should be in the range of 0-100.
• Resent Expiration • Protocol Error • Break Timeout • DTR Dropped • Carrier Lost 1 (No handshaking response) • Carrier Lost 2 (Remote hang-up, busy tone heard) 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. Most modem problems are a result of incorrect cabling or settings within your communications or fax software.
Problem Your modem fails to execute AT commands. Solutions 1. Make sure the DTR LED is ON. If it is OFF, make sure your communications software is using the same COM port as your modem. 2. You may have omitted the characters AT from the beginning of the command line. These characters must appear at the beginning of each command line. 3. You may have typed the commands when your modem was in data state instead of the command state.
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. Solutions 1. Make sure the DTR LED is ON. If it is OFF, make sure your communications software is using the same COM port as your modem. 2. Neither your modem nor your communications software is configured to echo characters.
2. Your modem may not be set up for auto-answer. With the modem in command state, type ATS0=1 and press Enter to have the modem answer on the first incoming ring. To autoanswer after a specific number of rings, replace 1 with a value up to 255. Do not assign a value of 0, which turns off autoanswer, unless your software can respond to the modem’s RING result codes. 3. Check that the DTR LED is ON, and that the RI LED flickers with each incoming ring.
Data Transfer Problems Problem You can make a data connection with a remote modem, but encounter frequent errors during data transfers. Solutions 1. Your modem and communications software may be configured for different flow control methods. Be sure your modem and software are both using hardware (RTS/CTS) flow control or software (XON/XOFF) flow control. 2.
11 Upgrading Your Modem 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 instructions. 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 Enter and wait for the following prompt characters: You have chosen XMODEM (128 bytes data with checksum) protocol to update your modem.
10. When the installation is complete, the modem restarts automatically. Kernel Recovery Mode Your 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 to the factory for repair. In the unlikely event that your modem fails to respond to AT commands after upgrading the flash EPROM: 1. Turn off the modem. 2.
12 Terminal Pinouts Terminal Blocks Each terminal block has eight terminal pins for connecting phone lines to the corresponding modem in the rack.
PC Serial Port Pinouts Signa ITU-TSS l Pin Signal Name 1 101 EIA Signal Name AA 2 103 BA 3 104 BB 4 105 CA 5 106 CB 6 107 CC 7 102 AB 8 109 CF 15 114 DB 17 115 DD 18 141 20 108/2 108/1 21 140 134 Terminal Pinouts CD Pin/Signal Description Protective Ground (GND). Transmitted Data(TXD). Received Data(RXD). Request To Send (RTS). Clear To Send (CTS). Data Set Ready (DSR). Signal Ground (GND). Data Carrier Detected (DCD). Transmit Clock Signal (source: DCE).
Signa ITU-TSS l Pin Signal Name EIA Signal Name 22 125 CE 24 113 DA 25 142 Pin/Signal Description Direction DTEDCE Loop Test. Ring Indicator(RI). Transmit Clock Signal (source: DTE). Test Indicator.
136 Terminal Pinouts
13 Index 16450 UART, 25 16550 UART, 5, 25, 26 2-wire leased line, 2, 4, 35, 95 4-wire leased line, 2, 4, 35, 85, 86, 95 Amiga, 1 Analog loopback, 3 Asynchronous mode, 2 AT commands, 3, 15, 16, 17, 19, 21, 23, 32, 40, 53, 70, 74, 119, 127, 128, 134 Audio Monitor, 4 Batch mode, 43 Call-back security, 2 Caller ID, 2, 43, 44, 46, 50, 91 Canadian User Information, iv Card slots, 10 Clock, 30, 31, 88, 95 COM port, 12, 16, 128, 129 Communication software, 2, 5, 11, 12, 15, 17, 25, 26, 32, 44, 128, 129, 131 Comput
Remote digital loopback, 3, 31, 43, 120 ROM code checksum, 118 RS-1612, 9, 10 RS-232, iv, 5, 11, 53, 55, 109, 119, 120, 137 RTS, 3, 8, 31, 60, 63, 65, 70, 74, 75, 84, 87, 99, 100, 101, 131, 136, 137 S/N ratio, 121 Security, 2, 39, 40, 41, 90, 103, 104 Seyon, 28 SMARTDRV, 25 S-register, 22, 23, 33, 38, 47, 49, 79, 93, 112 Switches, 3, 7, 9, 20, 38, 128, 129 138 Index Synchronous mode, 2, 29, 32, 33, 85, 99, 100, 101, 107, 119, 120 T.
