Omni 288S User’s Manual JiH5< 35*+39 5 , :.
Foreword 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.
Foreword FCC Part 15 Information This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operations. This equipment has been tested and found to comply with the limits for a CLASS B digital device pursuant to Part 15 of the FCC Rules.
Foreword advance notice isn’t practical, you will be notified as soon as possible. You will be informed of your right to file a complaint with the FCC. Your telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the proper functioning of your equipment. If they do, you will be notified in advance to give you an opportunity to maintain uninterrupted telephone service.
Foreword The Load Number (LN) assigned to each terminal device denotes the percentage of the total load to be connected to the telephone loop used by the device without overloading. The termination on a loop may consist of any combination of devices, subject only to the requirement that the total of the Load Numbers of all the devices not exceed 100. The load number for the Omni 288S is 10.
Table of Contents Foreword........................................................................... i Limited Warranty ............................................................................................. i Copyright 1996 by ZyXEL................................................................................. i FCC Part 15 Information................................................................................. ii FCC Requirements ...............................................................
Default Modem Settings for PC’s....................................................................3-7 ZyXEL Serial/Parallel I/O Card .....................................................................3-8 Helpful Hints for Mac Computers .................................................................. 3-8 Special AT Command Settings for Mac ...........................................................3-8 Mac Serial Port.......................................................................................
Chapter 7 - Cellular Mode Operation.............................7-1 Cellular Phone Systems.................................................................................. 7-1 Cellular Impairments...................................................................................... 7-1 Cellular Modems and ZyCellular Technology................................................ 7-2 ZyCellular Modes ..........................................................................................
Recording a greeting message...................................................................... 10-3 Playing a voice file through the internal speaker........................................... 10-3 Plaing a voice file through the phone line..................................................... 10-4 Omni 288S as a Voice answering machine.................................................... 10-4 Omni 288S as a Fax answering machine.......................................................
Appendix B - Contacting ZyXEL .................................. B-1 ZyXEL Phone Numbers..................................................................................B-1 Online Access ................................................................................................B-2 Internet........................................................................................................ B-2 CompuServe.................................................................................................
Chapter 1 - Introduction Chapter 1 - Introduction Congratulations on the purchase of your Omni 288S modem - one of ZyXEL's premier high-performance products. The Omni 288S is world renown for its ability to maintain ultra high speeds and clear, quality connections while communicating around the globe. How to Use this Manual The chapters and appendices in this complete User’sManual provide instructions and operation tips to get your modem functioning quickly and effectively.
Chapter 1 - Introduction Chap 13: Diagnostics & Troubleshooting Tips for resolving modem problems and for using the Omni 288S’s diagnostic capabilities. Appendix A: Upgrading Your Modem Describes the process for upgrading the Omni 288S with flash EPROM. Appendix B: Contact ZyXEL How to contact ZyXEL for product support and configuration questions. Appendix C: Connector Pinouts Lists the pinouts of the various connectors on the Omni 288S.
Chapter 1 - Introduction Required Equipment In addition to the ZyXEL Omni 288S modem you just purchased, you must have the following equipment to operate your 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, fax, and voice communication software Optional Equipme
Chapter 1 - Introduction 13 LED lights Extended AT command set with V.
Chapter 1 - Introduction Microphone jack is provided to increase the quality of voice recordings Speaker jack lets you plug in an external speaker for clearer output of recorded messages. 2, 3, 3-bit new and 4-bit ADPCM for high quality voice digitization with speech compression at 19.2Kbps, 28.8Kbps, 30.7Kbps, and 38.
Chapter 2 - Installation Chapter 2 - Installation This chapter covers the steps required to install your modem, install and configure the Windows 95 driver, as well as optional steps you may wish to take in the setup of your Omni 288S. More detailed instructions for various types of computers, such as IBM PCs and compatibles, Macs, and UNIX workstations, can be found in Chapter 3 of this Manual. Required Steps for Omni 288S Installation 1. Turn off your computer. 2.
Chapter 2 - Installation type of UART installed in your computer. If your computer has a 16450 UART, either replace it with a 16550 UART or add a serial card with a 16550 UART to your system. 5. Connect the telephone cord. Plug one end of the supplied telephone (RJ-11) cord into the LINE jack on the back of the modem. Plug the other end into a telephone wall jack, just as you would a standard telephone. 6. Turn the computer back on. 7. Turn the Omni 288S back on by raising the power switch.
Chapter 2 - Installation speaker. To connect two speakers, obtain a dual-plug adapter that allows the modem speaker jack to drive both speakers. This adapter can be found at most electronics stores. Driver and Software Installation This section contains step by step procedures for installing the Windows 95 and NT drivers, and configuring Dial-up Networking for the Omni 288S. Windows 95 Driver Installation Open the Control Panel by double clicking the "Control Panel" icon in your "My Computer" folder.
Chapter 2 - Installation Insert the ZyXEL Windows 95 driver disk into your floppy drive and click OK. If you have downloaded an updated INF file from ZyXEL’s FTP, Website, or BBS, use "Browse" to find the location of the updated .INF file, click "Open.” Then click "OK.” Select Omni288S from the list. Then click "Next.” Select the COM port your modem is connected to and click "Next.” A final dialog will appear. Click "Finish.” You should see a window similar to the one below.
Chapter 2 - Installation Click "Close.” This completes the installation of your Omni 288S modem driver. You may now use programs such as "Dial-Up Networking" with your ZyXEL modem. Windows 95 Dial-up Networking If you have not installed the Dial-Up Networking feature in Windows 95, please install it before you continue. Double click on the "My Computer" icon and then double click on the "Dial-up Networking" icon. From within the Dial-up Networking folder, double click on the "Make New Connection" icon.
Chapter 2 - Installation Enter the phone number to your ISP or whatever host you are calling into. Click on the "Next" button. Click on the Finish button. A new icon is created in the Dial-up Networking folder. Right click on this icon. Then select "Properties" from the menu.
Chapter 2 - Installation Make sure your Omni modem appears in the "Connect Using.” Then click on the "Server Type" button. These options are mostly host or server specific. If you are using PPP, use the default settings shown above. If you are logging on to an Internet connection, then select "TCP/IP.” If you are connecting to a LAN, then select "Login to Network.” If you are logging on to a Microsoft Windows network, select "NetBEUI.
Chapter 2 - Installation If you are logging on to a Novell network, then select "IPX/SPX Compatible.” Once complete click on "TCP/IP Settings.” If your host requires you to specify an IP address (Static IP), then click on the "Specify and IP address" radio button and enter your IP address. If your host assigns an IP when you log in (Dynamic IP), then leave the "Server assigned IP address" checked. Most servers assign an IP to you when you log in.
Chapter 2 - Installation If the User name and Password are incorrect or missing, type them in. Click on the Connect button and your Omni 288S will dial the number and establish a connection to your Internet Service Provider. Note: The default protocol for Dial-up Networking is Point-to-Point Protocol (PPP). If your ISP requires you to use Serial Line Interface Protocol (SLIP), you may need to create a special logon script file.
Chapter 2 - Installation 3. Select the following communication settings: Setting Value Baud rate 57,600bps Data bits 8 Parity None Stop bits 1 Flow control Hardware Initialization string AT&F Port COMn* Note: 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. 4.
Chapter 3 - Basic Modem Operation Chapter 3 - Basic Modem Operation This chapter covers the basic commands and techniques involved in modem operation. In many cases, this is the only information you will need in order to get your Omni 288S up and running with communication software, and to start making connections with your Omni 288S. Understanding AT Commands The Omni 288S communicates asynchronously with computers using AT commands. AT commands are used to configure and control the Omni 288S.
Chapter 3 - Basic Modem Operation Bits per second: Data bits: Parity: Stop bits: Flow Control: 57600 8 None 1 Hardware Click “OK” when finished. After you have done this, save your new connection by selecting “Save” from the “File” menu and click “OK.” A new connection icon will be added to your Hyper Terminal folder. You are now ready to start entering AT commands. In the terminal window, type: AT Omni 288S responds OK This confirms that the modem and your computer are communicating correctly.
Chapter 3 - Basic Modem Operation Pausing During Dialing: ATDT 9,,555 1212 Note: The pause time for each comma is defined by S Register S8. Default is 2 seconds per comma.
Chapter 3 - Basic Modem Operation Quick Tips when issuing AT Commands The ENTER or RETURN key must be pressed to execute a command. Multiple AT commands can be combined into one line. For example, AT&D2 and AT&N0 can be combined into one line AT&D3&N0. The Omni 288S processes commands from left to right. The AT command that appears to the right might over-write the command to the left if they are trying to accomplish tasks or set modes that cannot coexist.
Chapter 3 - Basic Modem Operation AT Command Set/Type Fax and Voice AT+ commands S-Register command S-Register bit-mapped command (set S- Example AT+FCLASS=2 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 uses.
Chapter 3 - Basic Modem Operation For example, to read the value of S-register S35, bit 7, type ATS35.7? and press Enter. The modem responds with an appropriate value, followed by OK. Changing S Register Values You can use the ATS0=n command to change the value of an S-register. For example, to have your modem auto-answer an incoming call after two rings, set S-register 0 to 2. Be sure the n value is between 1 and 255. If n is set to 0, your modem will not answer incoming calls.
Chapter 3 - Basic Modem Operation Saving Settings and User Profiles There are some cases where you may wish to save the settings you have made as the default settings that are recalled when the Omni 288S 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 command involved in storing, recalling, and viewing the profile settings.
Chapter 3 - Basic Modem Operation AT Command E1 &C1 &D2 &K4 &N0 Description Echoes command characters Carrier detect follows remote carrier Modem disconnects on DTR on-to-off transition Use both V.42 and MNP 4 error correction, and use both V.42bis and MNP 5 data compression Modem negotiates highest possible connection speed ZyXEL Serial/Parallel I/O Card For high-speed PC to modem communication, ZyXEL produces the special I/O adapter card.
Chapter 3 - Basic Modem Operation Fewer programs are available to make use of the ZyXEL's fax features. A commercial software which has found wide acceptance is FaxSTF. It is installed like a printer driver, thus allowing you to send faxes from almost any program which runs on your Macintosh. At the same time it allows automatic fax receiving. This program includes a powerful line manager software which makes sure that the fax software does not interfere with other programs using the serial ports.
Chapter 4 - Advanced Data Communications Chapter 4 - Advanced Data Communications This chapter is included as a general reference to the connectors, interfaces, protocols, and standards used by the Omni 288S, including definitions of many of the communications-related terms used in this manual. Front Panel LEDs The Omni 288 has 13 front panel LEDs. Some LEDs have individual meanings, while others work in combination to apprise you of your modem’s operating status.
Chapter 4 - Advanced Data Communications LED V34 OFF OFF ON ON V32B OFF ON OFF ON Indicates Status Modem is in V.22bis, V.22, or mode slower than 9600bps. Modem is in V.32bis or V.32 mode. Modem is in V.34 mode. Modem is in a ZyXEL proprietary mode (ZyX 19.2, ZyX 16.8, or ZyCellular). DTE Interface DTE and DCE are terms used in data communication. DTE stands for Data Terminal Equipment and DCE stands for Data Communication Equipment. The computer or terminal is the DTE and the modem is the DCE.
Chapter 4 - Advanced Data Communications RS-232C or EIA-232D/E RS-232C is the Recommended Standard (RS) of the Electronic Industries Association (EIA), defining the serial communication interface between a DTE and a DCE. The 232 is basically a serial number for the defined standard. Sometimes it is necessary to redefine a standard, or to revise it. The most commonly used revision of the RS232 standard is the "C" revision. For the "D" revision, the prefix was changed to EIA.
Chapter 4 - Advanced Data Communications Universal Protocol Compatibility Universal compatibility covers a broad range of ITU-T and BELL standards, and provides data compression. Various operation modes that can be achieved are as follows: Standard V.34 ZyXEL ZyXEL V.33* V.33* V.32bis V.32bis V.32bis V.32 V.32 uncoded V.32 V.29* V.29* V.29* V.27bis* V.27bis* V.26bis* V.23 V.23 V.
Chapter 4 - Advanced Data Communications Certain modes, such as the ZyXEL proprietary modes, Fax mode, and Cellular modes can be added or omitted from the auto-negotiation process using the Sregisters settings listed below. Mode ZyXEL 19200 ZyXEL16800 G3 Fax Cellular Disable S43.1=1 S43.0=1 S38.4=1 S43.3=1 * Enable S43.1=0 * S43.0=0 * S38.4=0 * S43.3=0 * Denotes default setting. Setting the DTE to DCE Rate The Omni 288S DTE to DCE rate can be determined in three ways: 1.
Chapter 4 - Advanced Data Communications error control protocols, commonly denoted as MNP4 and MNP3. V.42 is a standard developed by ITU-T. V.42 supports both LAPM (Link Access Procedure for Modem) and MNP4. A V.42 handshake will try an LAPM connection first, and if not successful, it will try MNP4. The error control (MNP4, LAPM) methods in modem to modem connections are based on techniques utilized by both modems. They are explained below.
Chapter 4 - Advanced Data Communications The compression efficiency of V.42bis is generally higher than that of MNP5. In some cases it can be 50% to 100% higher and in other cases it is just slightly higher. In general, it is about 50% more efficient. Run Length Encoding Run-length encoding is applied in an attempt to avoid sending long sequences of repeated characters (data).
Chapter 4 - Advanced Data Communications &H0 disables flow control &H3 sets CTS/RTS flow control &H4 sets XON/XOFF flow control Hardware CTS/RTS This is a bi-directional flow control where CTS and RTS are RS232 signals which must be available on your computer. When the modem's transmission buffer is almost full, the modem will drop CTS to signal the DTE that it cannot accept any more data. Turn ON the CTS to notify the DTE that it can keep sending data to the modem.
Chapter 5 - Synchronous Mode Operation Chapter 5 - Synchronous Mode Operation This chapter introduces you to the use of the Omni 288S 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. Synchronous operation applies to all of the non-FSK modes the modem is supplied with.
Chapter 5 - Synchronous Mode Operation Clock Options Synchronous data must be transmitted and received 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 of transmission synchronous clock sources to choose from: 1.
Chapter 5 - Synchronous Mode Operation You can always use the panel operation to control and configure the modem and use the manual dial and answer to operate the modem. Dialing from Synchronous Mode 1. Dial from the terminal using asynchronous commands. Set &M1 and use asynchronous AT commands to dial the number. Once the modem is connected, the modem will enter synchronous operation. 2. Dial through the computer using V.25bis commands.
Chapter 6 - Leased Line Operation Chapter 6 - 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. 4-wire leased lines use one pair of wires to transmit data and a second pair to receive. 2-wire leased lines transmit and receive on the same pair of wires. The Omni 288S supports only 2-wire leased lines.
Chapter 6 - Leased Line Operation originator and the other as the answerer. You can set this manually or automatically. Manual Connect Set the modem to leased-line mode. Type the asynchronous command ATD to the originating modem and ATA to the answering. Use AT*Mn or set S14b0 to select originate or answer mode. Auto Handshake If you want handshaking to occur automatically upon power-up, you have to save the leased-line configuration to the power-on profile.
Chapter 7 - Cellular Mode Operation Chapter 7 - Cellular Mode Operation The Omni 288S is equipped with a special cellular communication mode which enables the modem to perform reliable high speed data transmissions over cellular phone links. Although all ZyXEL modems can provide the cellular mode, the ZyXEL U-1496P portable modem is specially designed for mobile use. We have nick-named the ZyXEL cellular mode as ZyCellular.
Chapter 7 - Cellular Mode Operation good for voice, but not suitable for a modem signal. Modem signals, if too strong, may saturate the cellular link and cause distortion. Modem signal power that is too weak will result in lower signal-to-noise ratio at the receiving end. There is an optimum power in cellular data communications, but it is different in each case.
Chapter 7 - Cellular Mode Operation The MULTI-AUTO mode will automatically adapt to the other modem's capability, and will request and connect the appropriate mode. If both sides have cellular mode capability and at least one side is using a cellular phone, using MULTI-AUTO to make or answer a data call will result in a cellular mode connection. MULTI-AUTO is the default mode. Cellular Mode Usage Usage of the cellular mode is recommended when using a cellular link for modem connections.
Chapter 7 - Cellular Mode Operation If you are using a cellular phone data interface adapter, the following figures illustrate three installation examples. The figures are illustrated with a U-1496P model. You can use the Omni 288S, in the same way. The following is an example of a mobile phone that has a handset cradle and a separate transceiver and handset. The following is an example of a mobile phone that has a separate transceiver and handset.
Chapter 7 - Cellular Mode Operation Some newer cellular models, particularly the hand-held ones, have an audio jack that can connect the cellular phone's audio input/output to an outside headphonemicrophone set. A simple adapter cable can be used to connect the RJ11 modem's 2-wire interface to this cellular phone's audio jack.
Chapter 7 - Cellular Mode Operation Office Installation Naturally, you can install the Omni 288S in an office environment, as with all the other ZyXEL models.
Chapter 8 - Special Functions Chapter 8 - Special Functions This chapter describes the special features of the Omni 288S, and offers instructions on how each is used. Security Functions The Omni 288S 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 2 security is used when the remote modem is any other brand.
Chapter 8 - Special Functions ******** Password: (Enter new supervisor password) ******** 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. The command AT*V will list the 50 user passwords and the supervisor password on the screen for viewing. Again, you will be prompted to enter the supervisor password first.
Chapter 8 - Special Functions 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. Then the connection is reestablished and the profile transmitted to the remote modem.
Chapter 8 - Special Functions Caller Number Delivery (Caller ID) Caller Number Delivery (CND), commonly called Caller ID, is a new kind of phone service that may be offered by your local phone company. Check your phone company for availability. You must subscribe to it and usually pay an additional monthly service charge this service. With CND service, the phone company’s central office will send the coded caller information to the called station. This information is sent once between the first and second.
Chapter 8 - Special Functions CALLER NUMBER: 7135551414 or Smith CALLER NAME: Jack 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: Jack Smith 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
Chapter 8 - Special Functions 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. Check your phone company for availability. With this service, you can have several phone numbers assigned to the same phone line. The phone company will send a different type of ring signal for each phone number being called.
Chapter 8 - Special Functions If more than one type of Distinctive Ring is turned on, RING n will be reported for an incoming ring signal where n is the ring type number. Note: Countries other than the U.S. may have different specifications for different ring types. The manufacturer may append other sets of ring type specifications to suit each country's needs.
Chapter 8 - Special Functions 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. S51 Bit-mapped register: (default: 0) Bits (7,6) (5,4) (3,2) (1,0) Bin. 00 01 10 11 00 01 10 110 00 01 10 11 00 01 10 11 Dec.
Chapter 8 - Special Functions The timing relationship between the Caller ID (if enabled), EDR, and ring detection is as follows: ring1 ring2 ring3 ***--------***--------***-----------------------------3sec 3s 3s 3s S7 timeout +------+---+------+---+------+---+-------------+---CID/EDR RD EDR RD EDR RD EDR RD CID=Caller ID task RD=Ring Detection task EDR=EDR task Note: During the EDR period, any AT command will disable the EDR function.
Chapter 9 - Fax Operation Chapter 9 - Fax Operation The Omni 288S can be used as a fax machine, and this chapter explains how. In the sections below, we will describe how the modem 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.
Chapter 9 - Fax Operation image data transfer. The computer handles image data creation, capturing, conversion, compression, decompression, retrieving, and storing. ITU-T T.30 Fax Protocol The ITU-T T.30 fax protocol is known as the G3 fax handshake signals and procedures. The modem takes full control of this protocol - initiating and terminating fax calls, managing the communication session, and transporting the image data. Therefore, the modem relieves the computer fax software of the T.
Chapter 9 - Fax Operation Class 1 Command Set Command +FCLASS=n Value Description Service class selection n=0 Set to Data mode n=1 Set to Class 1 mode n=2 Set to Class 2 mode n=2.0 Set to Class 2.0 mode n=6 Set to ZFAX mode n=8 Set to Voice mode Note: If S57.4=0 (default), the response to the +FCLASS=? command will not report Class 1 capability. This is due to the fact that some fax software packages may get confused by this response.
Chapter 9 - Fax Operation Class 2 Command Set The following Class 2 commands are supported and implemented per TIA PN2388 (8/20/90). Command Syntax += +=? +? Description Execute a command or set a parameter. Read permissible settings. Read current setting. Supported Commands (per TIA PN2388 8/20/90) Command Value Description +FAA=n Auto-answer mode parameter: n=0 Answer as set by +FCLASS. n=1 DCE answers and auto-determines type.
Chapter 9 - Fax Operation Command +FCTCRTY= Value 0-255 Description ECM retry count; in Error Mode only: The sender will try to send a partial page 4 times. =0 to 255; units of 4 retries. If the Continue To Correct (CTC) count is 0, it will not make any further attempts. DCE capabilities parameters. vr=0 vr=1 br=0 br=1 br=2 br=3 br=4 br=5 wd=0 wd=1 wd=2 ln=0 ln=1 ln=2 df=0 Vertical resolution: Normal; 98 lpi. Vertical resolution: Fine; 196 lpi. Bit rate: 2400 bit/s; V.27ter.
Chapter 9 - Fax Operation Command +FDR Value +FDT=df,vr,wd, ln +FECM=n n=0 n=2 +FET=n n=0 n=1 n=2 n=4 n=5 n=6 +FK +FLID="string" +FLO=n n=0 n=1 n=2 +FLPL=n n=0 n=1 +FMDL? +FMFR? +FMINSP=n +FPHCTO= +FPTS=n n=0 n=1 n=2 n=3 n=4 n=5 0-255 Description Receive phase C data command; initiates document reception. Transmit phase C data command: release the DCE to proceed with negotiation. Error mode control: Error mode is disabled.
Chapter 9 - Fax Operation Command Value n=1 n=2 n=3 n=4 n=5 Description Received page good. Page bad; retrain requested. Page good; retrain requested. Page bad; procedure interrupt requested. 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.
Chapter 9 - Fax Operation Response Value +FNSF:"HEX string" +FNSS:"HEX string" +FPOLL +FPTS:n +FTSI:"string" +FVOICE Function and Description Report the non-standard facilities frame response. Report the non-standard setup frame response. Remote polling indication. Receive page transfer status response; refer to +FPTS=n command. Report remote ID response TSI. Transition to Voice response.
Chapter 9 - Fax Operation Command Value tq=1 tq=2 +FCR=n n=0 n=1 +FCT=n 0-255 +FDR +FDT +FEA=n n=0 n=1 +FIE=n n=0 n=1 +FIP +FIS=vr,br,wd,ln, df,ec,bf,st +FKS +FLI="string" +FLO=n n=0 n=1 n=2 +FLP=n n=0 n=1 Description disabled. DCE Transmit Copy Quality Checking enabled. DCE Transmit Copy Quality Correction enabled. "Capability to receive" parameter DCE will not receive message or poll a remote device. DCE receives message data or polls a remote device DTE phase C time-out parameter.
Chapter 9 - Fax Operation Command +FMI? +FMM? +FMR? +FMS=n Value +FNR=rpr, tpr, idr, nsr rpr=0 rpr=1 tpr=0 tpr=1 idr=0 idr=1 nsr=0 nsr=1 +FNS="string" +FPI="string" +FPP=n n=0 n=1 +FPR=n n=0 n>0 +FPS=n Description Request DCE manufacturer identification. Request DCE model identification. Request DCE revision identification. Minimum phase C speed parameter. refer to +FMINSP Class 2 command in previos section for parameter settings.
Chapter 9 - Fax Operation Command +FRQ=pgl, cbl Value pgl= 0-64 (HEX value) +FRY=n +FSP=n cbl= 0-FF (HEX value) 0-255 n=0 n=1 Class 2.0 Command Responses Response Value +FCI:"CSI ID string" +FCO +FCS: vr, br, wd, ln, df, ec, bf, st +FET: ppm=0 ppm=1 ppm=2 ppm=3 ppm=4 ppm=5 +FHS: hsc= 0-0F hsc= 10-1F Description Quality thresholds parameters: Specify the percentage of good lines (e.g. with negotiated number of pixels) required for a page considered acceptable.
Chapter 9 - Fax Operation Response Value hsc= 20-3F hsc= 40-4F hsc= 50-6F hsc= 70-8F hsc= 90-9F hsc= A0-BF +FIS:vr, br, wd, ln df, ec, bf, st +FNC: "NSC FIF string" +FNF: "NSF FIF string" +FNS: "NSS FIF string" +FPI: "CIG ID string" +FPO +FPS:ppr, lc, blc, cblc, lbc Report NSF (non-standard Facilities) frame. Report NSS (non-standard Setup) frame. Report remote ID response-Polling Station ID (CIG). Remote polling indication. .
Chapter 9 - Fax Operation Response +FTI: "TSI ID string" +FVO Value Function and Description parameters. Remote ID response-Transmit Station ID (TSI). Report transition to voice. Extended Fax AT Command Set Extended Fax AT Commands are unique to ZyXEL modems. The computer controls the modem through a set of extended fax AT commands and the modem responds with a set of status report result codes. During data state, compressed fax image data is flowing between the modem and computer.
Chapter 9 - Fax Operation Command #B3 Function Displays the ring cadence. Parameter Setting Command Function #V0 Set to normal vertical resolution. #V1 Set to high vertical resolution. #T0 Set to one dimensional coding scheme. #T1 Set to two dimensional coding scheme. #R0 Set recording width: 1728 picture elements along a scan line length of 215 mm. #R1 Set recording width: 2048 picture elements along a scan line length of 255 mm.
Chapter 9 - Fax Operation Status Report Result Codes When the Omni 288S is set in the fax mode, each ATD or ATA command will make the modem try to establish a fax connection. The Omni 288S 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 tone is detected. Handshake fails or no carrier is detected or time-out. Other party's phone line is busy. Quiet answer is not detected before time-out. See below.
Chapter 9 - Fax Operation Flow Control In extended fax AT command mode, the Omni 288S always uses hardware (CTS/RTS) flow control. The flow control signaling used sending a fax is: CTS is used by the Omni 288S to flow control the DTE. When the modem turns CTS off, the buffer inside the modem is full and cannot accept any more data. The computer should send data only when CTS is ON. RTS is used by the computer to signal the Omni 288S that the fax message is finished.
Chapter 9 - Fax Operation X7#B1+FCLASS=6 Change the connection message to: 300 1200 1275 2400 CONNECT CONNECT 1200 CONNECT FAX CONNECT 2400 4800 9600 19200 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 a Binkley system.
Chapter 10 - Voice Mode Operation Chapter 10 - Voice Mode Operation Voice mode refers to the Omni 288S’s ability to digitize incoming voice messages, which the computer stores and forwards. It also means the modem can playback the recorded digitized voice either off-line for local message listening or on-line for a message announcement. For interactive voice applications, DTMF tone detection capability is important so a computer can react according to the remote caller's touch tone input.
Chapter 10 - Voice Mode Operation Automatic Detection of Voice, Data, Fax Since there is no way to standardize the way a human voice should behave in telephone calling and answering, it is nearly impossible to automatically distinguish a voice call from a fax call from a data call. One common way of accomplishing this task is to combine the use of a digitally recorded voice message with DTMF tone detection.
Chapter 10 - Voice Mode Operation Choose your Input/Output Device by typing the appropriate AT commands. To select the telephone (connected to phone jack) as your I/O device, type: AT+VLS=1 To select the external microphone as your input device, type: AT+VLS=8 To select the modem internal speaker as your output device, type: AT+VLS=16 Note: The external speaker simply replaces the internal speaker. As an output device. Device selection remains the same.
Chapter 10 - Voice Mode Operation Commands AT+VLS=0 AT+FCLASS=0 DCE Responses OK OK Description Deactivate internal speaker. Return to the data mode. Plaing a voice file through the phone line Commands AT+FCLASS=8 AT+VSM=? AT+VSM=4 DCE Responses OK (reference table) OK AT+VLS=2 AT+VTX VCON CONNECT OK OK OK AT+VLS=0 AT+FCLASS=0 Description Switches to voice mode. List the compression schemes Select 4-bit ADPCM compression method. Connect to line. Start replay.
Chapter 10 - Voice Mode Operation Command AT+FCLASS=8 AT+VSM=? AT+VSM=4 DCE Response OK (reference table) OK AT+VLS=2 AT+VTX VCON CONNECT c or ’n’ OK OK Try to handshake fax mode. AT+FCLASS=2 ATA Description Switch to voice mode. List the compression schemes Select 4-bit ADPCM for greeting message. Connect to line. Start to play greeting message. T.30 fax calling tone or DTMF digit 'n' detected. Return to command state. Switch to fax mode. Answer fax call.
Chapter 10 - Voice Mode Operation Voice States and Operation Modes The Omni 288’s Voice Mode DCE control interface adheres to the TIA TR29.2 committee IS-101 Interim Standard. ZyXEL is continuously enhancing its modems' voice capability and voice feature implementation. Please refer to future manual amendments or firmware release notes for updated details. In ZyXEL Voice Mode, three states exist that correspond to the flow direction of voice data between the modem (DCE) and the computer (DTE).
Chapter 10 - Voice Mode Operation The Voice Command State provides several DTE options. The modem may wait for an unspecified time after playing a welcome message, or switch to other modes as part of a DTE call discrimination algorithm. Voice Data States The DCE is in Voice Data State when the DCE is operating in voice mode and is communicating with a remote station or with one or more local devices which are capable of translating analog signals to voice (e.g., speaker) or voice to analog (e.g.
Chapter 10 - Voice Mode Operation 1. monitors the line we which connects the DCE to the remote station or to one or more local devices t detect events which the DCE reports to the DTE. These events pertain to signals carried over the line such as tones, and to PSTN -generated control and notification signals such as ringing. 2. does not expect to receive digitized data from the DTE, perform conversion, or transmit the analog signal to the remote station or to one or more local devices.
Chapter 10 - Voice Mode Operation 7 (0x37) 8 (0x38) 9 (0x39) 0 (0x30) A (0x41) B (0x42) C (0x43) D (0x44) * (0x2A) # (0x23) o (0x6F) c (0x63) e (0x65) h (0x68) H (0x48) s (0x73) q (0x71) $ (0x24) l (0x6C) b (0x62) u (0x75) a (0x61) Event Report Description DTMF 7 DTMF 8 DTMF 9 DTMF 0 Extended Keypad DTMF A Extended Keypad DTMF B Extended Keypad DTMF C Extended Keypad DTMF D Extended Keypad DTMF * Extended Keypad DTMF # Buffer Overrun. T.30 fax calling tone (1100Hz).
Chapter 10 - Voice Mode Operation u (0x75) d (0x64) p (0x70) r (0x72) (0x3) (0x14) (0x18) (0x1C) or (0x12) ! (0x21) Event Report Description Turn up the volume or gain by one unit. Turn down the volume or gain by one unit. Pause Data State: The DCE suspends sending analog data to the currently selected analog destination.
Chapter 10 - Voice Mode Operation AT Command Syntax AT is the command line prefix. Voice commands take one of the following forms: Command-Form Syntax +V? +V=? +V= +V= Command-Form Function Read current setting. Read permissible settings. Set single-value parameter. Set compound parameter. Voice AT commands begin with ‘AT’ followed by a ‘+V’ command prefix. represents the command character/s.
Chapter 10 - Voice Mode Operation The DTE can select the flow control method in voice mode by using the +FLO command (defined in Class 2 and 2.0). Supported Commands in Voice Mode Operation ATD (with +FCLASS=8) This command causes the DCE to dial a phone number. The DCE uses the current destination setting to perform a dial action. If +VLS is equal to zero at the time of the ATD command, the DCE will return an ERROR result code.
Chapter 10 - Voice Mode Operation 8 Voice Mode (TIA IS-101) The DCE returns the OK result code if the DCE accepts the command. The DCE returns the ERROR result code if the subparameter is not permitted. AT+FCLASS? The DCE returns the current mode setting followed by the OK result code. AT+FCLASS=? The DCE returns permitted modes. The response is (with S57.4=1): 0,1,2,2.0,6,8,Z OK AT+VLH=? This enables the DTE to inquire the hook status of the connected local phone.
Chapter 10 - Voice Mode Operation 0 1 2 Flow Control Method XON/XOFF and RTS/CTS flow control turned off Use software XON/XOFF flow control in either direction. Use hardware RTS/CTS flow control. The DCE returns the OK result code if the DCE accepts the command. The DCE returns the ERROR result code if the subparameter is out of range. AT+FLO? The DCE returns the current flow control setting, followed by the OK result code. AT+FLO=? The DCE returns permitted flow control methods.
Chapter 10 - Voice Mode Operation 2. The DTE sends a shielded code. 3. A DTE/DCE Inactivity Timer time-out. Upon termination of the voice state, the DCE will append a character pair, followed by the OK result code. The DCE then returns to Voice Command State. The Inactivity Timer is in effect while the reception operation is in progress.
Chapter 10 - Voice Mode Operation This command causes the DCE to start the voice transmission process. The DCE begins the Voice Transmission Mode by returning the CONNECT result code to the DTE. After this report, the DCE accepts shielded voice data from the DTE. The DTE shall send the data in the format previously selected by the +VSM command and use the flow control method selected by the +FLO command. There are two ways to leave the Voice Transmission State: 1.
Chapter 10 - Voice Mode Operation The DCE returns the result code OK if DCE accepts this command, or it returns the result code ERROR if the parameter is out of range. AT+VGT? The DCE returns the current gain, followed by the OK result code. AT+VGT=? The DCE returns permitted values for the gain. The response is: 56-200 OK AT+VIT= This command sets the inactive time-out value for the DTE/DCE Inactivity Timer. The default value is 7 seconds.
Chapter 10 - Voice Mode Operation The DCE returns the VCON result code (returns OK if S48.5=1) if the DCE accepts this command, or it returns the ERROR result code if the value is not permitted. AT+VLS? The DCE will return the current I/O device followed by the OK result code. AT+VLS=? The DCE will return permitted I/O devices.
Chapter 10 - Voice Mode Operation OK AT+VSM=, This command causes the DCE to select a compression scheme and sample rate as follows: 2 3 30 4 40 80 81 Compression Scheme ZyXEL 2 ADPCM ZyXEL 3 ADPCM ZyXEL 3 ADPCM (new) ZyXEL 4 ADPCM DVI ADPCM A-law PCM u-law PCM Bits/Sample 2 3 3 4 4 8 8 possible values 7200, 8000, 9600, 11025 7200, 8000, 9600, 11025 7200, 8000, 9600, 11025 7200, 8000, 9600, 11025 7200, 8000, 9600, 11025 7200, 8000, 9600, 11025 7200, 8000, 9600, 11025 The DCE re
Chapter 11 - AT Command Set Summaries Chapter 11 - AT Command Set Summaries Basic AT Command Set Command Options Function & Description Re-execute the last command once 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. All the Following Commands Require a “AT” Prefix A Go on-line in answer mode.
Chapter 11 - AT Command Set Summaries Command Options Function & Description M2 M3 Nn n=0-7 5* O O1 Qn Q0 Q1 Q2 * Sr.b=n Sr.b? Sr=n Sr? T UPX Vn V0 Xn Zn $ V1 * n=0-7 5* n=0-4 Zn Z4 Ref. Speaker always ON Speaker ON after the last digit is dialed out and OFF when carrier is detected Ring volume control.'N0' will disable the audio ring S24.1-3 function Return to on-line state Force modem to request a retrain Result code displayed S23.
Chapter 11 - AT Command Set Summaries Description of ATI2 Output: The Link Status Report output appears as follows: ZyXEL MODEMS LINK STATUS REPORT Chars Sent Octets Sent Blocks Sent Blocks Resent Max Block Size Link Duration FRN Requested FCS Errors Xmitter Underrun Last Speed/Protocol Disconnect Reason 0 0 0 0 0 0 0 0 0 14400 Chars Received Octets Received Blocks Received Max Outstanding Retrains Requested Retrains Granted FRN Granted Round Trip Delay Receiver Overrun 0 0 0 0 0 0 0 0 0 Local hang up
Chapter 11 - AT Command Set Summaries Extended AT& Command Set Command Options Function & Description &Bn &B0 &B1 * &Cn &C0 &C1 * &Dn &D0 &D1 &D2 * &D3 &F &Gn &G0 * &G2 &Hn &H0 &H3 * &H4 &Jn &J0 &J1 &Kn &Ln &K0 &K1 &K2 &K3 &K4 * &L0 * &L1 &L2 &Mn &M0 * &M1 &M2 &M3 &Nn Data rate, terminal-to-modem. (DTE/DCE) DTE rate follows connection rate. (See also S44.6) DTE/DCE rate fixed at DTE setting (See also S18, S20, and S44.6) Carrier Detect (CD) options CD always ON (See also S42.
Chapter 11 - AT Command Set Summaries Command Options Function & Description &N0 * &N3 &N4 &N5 &N12 &N13 &N14 &N15 &N16 &N17 &N18 &N19 &N24 &N25 &N32 &N34 &N35 &N36 &N37 &N38 &N39 &N42 &N43 &N44 &N45 &N46 &N62 &N63 &N64 &N65 &N66 &N67 &N68 &N69 &N70 &N71 &N72 &N73 &Pn &P0 * &P1 &Rn Ref. 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.
Chapter 11 - AT Command Set Summaries Command Options Function & Description &R0 &R1 * &Sn &S0 * &S1 &Tn &T0 &T1 &T3 &T4 &T5 &T6 &T7 &T8 &Vn &Wn &V0 &Vn &V5 n=0-3 &Xn &X0 * &X1 &X2 &Yn &Y0 &Y1 * &Y2 &Z? &Zn=s n=0-39 Ref. CTS tracks RTS, response delay is set in S26 Ignore RTS, assumes RTS always ON Data Set Ready (DSR) function selection. S21.3 DSR overridden, DSR always ON. DSR according to CCITT (ITU-TSS). (See also S41.5, S44.4) Modem testing. Terminate test in progress.
Chapter 11 - AT Command Set Summaries Extended AT* Command Set Command Options Function & Description Ref. *Cn Character length, including start, stop and parity bit. 10-bit character length. 11-bit character length. 9-bit character length. 8-bit character length. Set default dial pointer at telephone directory location n. (See also S35.4 and S38.0) Modem error control negotiation. if error control negotiation fails, keep the non-error control connection.
Chapter 11 - AT Command Set Summaries Command Options a=0-3 b=0-3 b=4 b=5 *T *V *Wab a=0-3 a=4 a=5 b=0-3 Function & Description Ref. Local user profile number “a” Remote user profile number “b” Remote active configuration Remote factory default configuration Recall the last CND (Caller ID) information.
Chapter 12 - Status Registers & Result Codes Chapter 12 - 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 refence 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.
Chapter 12 - Status Registers & Result Codes Command bit 5,4 7,6 S15= bit 0,1 2 4,3 7-5 S16= S17= bit 4-1 5 7,6 S18= S19= dec 8 0 16 32 0 64 128 192 dec 0 1 2 0 4 0 8 16 24 0 32 64 96 128 hex 8 0 10 20 0 40 80 C0 hex 0 1 2 * 0 * 4 0 * 8 10 18 0 20 40 60 80 * dec 0 1 3 6 7 hex 0 1 3 6 7 8 dec 0-30 8 hex 0-1E 0 32 0 64 128 dec 0 * n+1 0 20 0 40 80 hex 0 dec hex Function and description 4-wire leased line - if available Internal clock (Default) External clock Remote clock Asynchronous dat
Chapter 12 - Status Registers & Result Codes Command S20= S21= bit dec dec hex hex Function and description Ref. DTE speed (bps).
Chapter 12 - Status Registers & Result Codes Command bit 5 32 20 0 64 0 40 128 80 192 C0 dec 0 1 0 2 0 4 hex 0 1 0 2 0 4 0 8 16 24 32 0 0 8 10 18 20 0 7 64 0 128 40 0 80 bit 3-1 dec 0-14 hex 0-E 7-5 32-224 20-E0 4-6 16-119 10-70 2 0 4 0 4 3 0 8 0 8 bit 0 1 2 3-5 6 S24= hex 0 6-7 S23= dec 0 5-4 Function and description CTS Follows RTS in synchronous mode. Response delay set in S26 Ignore RTS (CTS always ON) in synchronous mode. (Default) Assume DTR always On 108.
Chapter 12 - Status Registers & Result Codes Command S25= bit dec 0-255 hex 0-FF dec 0-255 hex 0-FF dec hex 0 1 2 3 4 0 24 32 40 0 1 2 3 4 0 18 20 28 0 64 0 40 128 80 192 dec 0 0 16 32 0 128 0-39 C0 hex 0 0 10 20 0 * 80 0-39 bit 0 0-255 0-255 dec 1 0-FF 0-FF hex 1 1 2 2 2 3 4 4 8 16 4 8 10 5 32 20 S26= S27= bit 0-2 3-5 6-7 S28= bit 0 4-5 7 S29= S31= S32= S35= Function and description Specify the time delay that DTR signal needs to be OFF before it will be recognized, in 1
Chapter 12 - Status Registers & Result Codes Command S36= 6 bit 64 dec hex 30 7 128 80 bit 0 dec 0 hex 0 1 1 0 1 0 2 2 0 32 0 20 64 40 96 128 60 80 160 A0 7-5 S37= bit dec hex S38= 3-0 7-4 bit 0 3 0-5 0-80 dec 1 8 0-5 0-50 hex 1 8 S39= 4 5 bit 2 3 16 32 dec 4 8 10 20 hex 4 8 4 16 10 bit dec hex S40= Function and description Enable password protection to profile saving.
Chapter 12 - Status Registers & Result Codes Command S41= S42= S43= S44= 1 bit 0 bit dec 2 dec 1 hex 2 hex 1 2 4 4 3 8 8 4 16 10 5 32 20 6 7 64 128 40 80 bit 3 dec 8 hex 8 4 16 10 5 6 7 32 64 128 20 40 80 bit 0 dec 1 hex 1 1 2 2 4 2 4 3 6 0 8 64 0 8 40 7 128 80 bit 3 dec 8 hex 8 4 5 16 32 10 20 Function and description No result code displayed in answer mode Bit mapped register Special MNP compatibility (see also S27.0, S38.
Chapter 12 - Status Registers & Result Codes Command 6 bit 64 hex 40 7 128 80 dec 0-255 dec 0-255 hex 0-FF hex 0-FF bit 0 dec 1 hex 1 1 2 2 2 3 4 8 4 8 4 16 10 5 32 20 bit 3-0 dec 0-15 hex 0-FF 7 0 0 7 128 80 dec hex S45= S46= S48= S49= S50= dec Function and description When selected with ‘&B0’, DTE speed fixed at 38400 when the link speed is above 9600. DTE speed fixed at 9600 if link speed is 7200, DTE speed follows link speed.
Chapter 12 - Status Registers & Result Codes Command S51= bit dec 0-255 hex 0-FF dec 0 1 2 3 0 4 8 12 1 0 16 32 48 0 64 128 192 dec 0-24 0 8 16 24 0 hex 0 1 2 3 0 4 8 0C 1 0 10 20 30 0 40 80 B2 hex 0-18 0 8 10 18 0 128 80 dec 0-255 hex 0-FF bit 4 dec 16 hex 10 6 0 0 bit 0 64 dec 0 40 hex 0 1 1 bit 1-0 3-2 5-4 7-6 S52= bit 4-3 7 S56= S57= S62= Function and description Ref. The modem counts when there is no data flow in or out of the RS-232 serial port.
Chapter 12 - Status Registers & Result Codes Bit dec hex +nnn Note: S-register bit number, 'b', used in 'ATSr.b=n' and 'ATSr.b=?' Decimal value, 'x', used in 'ATSn=x' 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.
Chapter 12 - Status Registers & Result Codes ATV0 ATV1 X0 X1 X2 X3 X4 X5 X6 34 CONNECT 41600 % % % % @ 36 CONNECT 24960 % % % % @ 37 CONNECT 20800 % % % % @ 39 CONNECT 28800 % % % % @ $ 40 CONNECT 26400 % % % % @ $ 41 CONNECT 24000 % % % % @ $ 42 CONNECT 21600 % % % % @ $ * Use S42.
Chapter 13 - Diagnostics & Troubleshooting Chapter 13 - Diagnostics & Troubleshooting Diagnostics The Omni 288 is equipped with several diagnostic capabilities: Power-on Self Test Analog Loop-back Test Digital Loop-back with Self-Test Remote Digital Loop-back Test Remote Digital Loop-back with Self-Test The diagnostic tests listed above apply to several modes of operation: asynchronous or synchronous, error controlled or non-error controlled, data compression enabled or disabled da
Chapter 13 - Diagnostics & Troubleshooting Resetting The Modem If you change the modem's setting and cannot get it back, or if you just want to get back to the factory default state, the following reset procedure will reset the modem to the factory state. This procedure also causes the modem to run a selftest. It is a good way to test the modem hardware. 1. Hold the DATA/VOICE key down while powering up the modem.
Chapter 13 - Diagnostics & Troubleshooting characters. You can see the result on the screen. In the synchronous mode, the pattern is made up of scrambled binary 1 and the Throughput Meter will change to a Bit Error Rate Meter. The left reader displays accumulated bit errors while the right reader displays accumulated bits sent. The SQ LED will flash. This test can only be initiated when the modem is off-line. The following Bit Error Rate Meter example shows 11120 Kbits sent, 22 bits in error.
Chapter 13 - Diagnostics & Troubleshooting Dialing Indicator The V32b LED will flash on and off for 1/2 second each to indicate that the modem is dialing. This flash will continue after dialing until a carrier is detected. Therefore, the V32b LED will also flash in leased-line modem connections when one modem is trying to handshake but the other modem is not turned on.
Chapter 13 - Diagnostics & Troubleshooting Problem You typed an AT command, but did not receive an OK or 0 result code. 1. Solutions Your communications software may be using a different COM port than your modem. Be sure both the software and your modem are addressing the same COM port. 2. The E0 and Q1 commands may be in effect, disabling echo and result codes. To verify this in terminal mode, type AT&V0 and press Enter with the modem in command state to view the currently active settings.
Chapter 13 - Diagnostics & Troubleshooting Answer Problems Problem Your modem does not auto-answer incoming calls. 1. Solutions Make sure the supplied telephone cable is connected to your modem’s LINE jack and not the PHONE jack. 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 auto-answer on a different ring, replace 1 with a value up to 255.
Chapter 13 - Diagnostics & Troubleshooting You can make a data connection with a remote modem, but encounter frequent errors during data transfers. 1. 2. Solutions 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.
Appendix A - Upgrading Your Modem Appendix A - Upgrading Your Modem Upgrading by Flash EPROM 1. Obtain the new firmware by downloading from the ZyXEL BBS, WWW or FTP site. (See Appendix B - Contacting ZyXEL). 2. Turn on your computer. 3. Turn on your Omni 288S modem. 4. Start any communications program that supports the XModem protocol. 5. Type ATUPX. 6.
Appendix B - Contacting ZyXEL Appendix B - Contacting ZyXEL ZyXEL takes pride in it products and its customers. We are continually striving to improve our line by engineering them with your current and future needs in mind. To help us in that effort, we encourage your comments. For your convenience, we have listed below various means by which you can contact ZyXEL directly: ZyXEL Phone Numbers Voice Telephone Numbers You can reach ZyXEL in the U.S.
Appendix B - Contacting ZyXEL Online Access You can also contact ZyXEL via the Internet using E-mail, our Web site, or FTP, and through CompuServe. Internet E-mail Sales inquiries: sales@zyxel.com Technical support: support@zyxel.com ; in the U.S. or support@zyxel.hinet.net ; outside the U.S. World Wide Web ZyXEL has a home page on the World Wide Web(WWW). If you have a WWW browser, such as Netscape, you can access this page at the following location: http://www.zyxel.
Appendix C - Connector Pinouts Appendix C - Connector Pinouts Phone Jack Pinouts The Omni 288S is equipped with two RJ11 phone jacks: 1. one for the dail-up line connection (LINE) 2. one for an optional connection to a phone set (PHONE) The signals for these pins are: 1 2 3 4 A RING TIP A1 The signals A and A1 are used with the KTS (Key Telephone Systems).
Appendix C - Connector Pinouts Macintosh Serial Port Pinouts The following table 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 CD, Carrier detected GND, Ground, needed for RS-232 connections C-2
Glossary Analog: Not digital. Analog quantities may have any value. Analog loopback test: Testing method in which the modem's analog output signal is connected to the analog input. Answer: In a connection between two modems, one modem works as the recipient (in answer mode) and the second modem as the initiator (originate mode). AppleTalk: A simple network to connect several computers directly with each other. AppleTalk is also the protocol according to which connected computers exchange data.
Glossary CEPT: Commission Européenne Postale et Telephonique. This organization regulates the data exhange between the European postal services and participates in the drafting of some standards. Class 2: A standard for fax transfers using a fax modem. Currently several drafts exist which are incompatible with each other. ZyXEL modems support the draft PN-2388 of Aug. 20th 1990, and the final 2.0 standard. CNG: Call negotiation tone.
Glossary other peripheral devices. You will not find any DIP switches in ZyXEL modems. ZyXEL modems let you perform all settings from the front panel or through command sequences. DLE: The ASCII code that is used in voice data mode to separate data segments from command segments. DSP: Digital signal processor. ZyXEL modems are equipped with this/these device(s). DSPs generate, process and analyze all signals. DSR: Data Set Ready - a control signal line of the RS-232C standard.
Glossary G3 fax: Several fax standards exist. Most available fax machines use the group 3 (G3) standard. This standard defines the compression of graphic data and a transmission speed of up to 14400 bps with an automatic fallback to 2400 bps if the telephone line is bad. Handshake: At the beginning of a connection, the modems must negotiate and initialize the protocols to be used and the speed at which the connection is to be established.
Glossary MNP: Protocols for error correction and data compression from Microcom, Inc. Modem: An artificial word concatenated from modulator and demodulator. A modem translates the digital signals received from its local DTE to analog signals which are transmitted via a telephone line. At the other end, the analog signals are demodulated and sent to the DTE as digital signals again. Modulation: Translating digital states to analog waveforms.
Glossary Remote location: The modem at the other end of the line (the one you are calling or that is calling). Reset: Return a device into a defined base status. Retrain: The re-initialization process a modem is doing with the remote modem when the receiving condition becomes bad. ROM: Read Only Memory. The ROM holds the system software and the profiles and settings of the modem (refer to EEPROM). RS: Abbreviation of recommended standard. RTS/CTS: See CTS/RTS.
Glossary T.30: A standard for fax transfers. TAE6: A standard for a telephone wall outlet used in some countries, particularly in Germany. ter: Old French word for three. Terminal equipment: A computer running terminal software is used as terminal equipment in modem connections. Terminal program: A program which emulates the operation of a hardware terminal on a computer's screen and keyboard. Token: A token is a reencoding of information in less bits; basically an abbreviation.
