Page 2 - Foreword; Limited Warranty; Liability Notice; Acknowledgements
Foreword i Limited Warranty ZyXEL warrants to the original end user (purchaser) that this product is free from anydefects in materials or workmanship for a period of up to two (2) years from the date ofpurchase. During the warranty period, and upon proof of purchase, should the producthave indicatio...
Page 3 - FCC Part 15 Information; FCC Requirements
Foreword ii FCC Part 15 Information This device complies with Part 15 of FCC rules. Operation is subject to the following twoconditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that maycause undesired operations....
Page 4 - Information for Canadian Users; Caution: Use rs should not atte mpt to make such conne ctions
Foreword iii advance notice isn’t practical, you will be notified as soon as possible. You will beinformed of your right to file a complaint with the FCC. Your telephone company may make changes in its facilities, equipment, operations, orprocedures that could affect the proper functioning of your e...
Page 5 - Telephone Company Requirements
Foreword iv The Load Number (LN) assigned to each terminal device denotes the percentageof the total load to be connected to the telephone loop used by the device withoutoverloading. The termination on a loop may consist of any combination ofdevices, subject only to the requirement that the total of...
Page 6 - Table of Contents
Table of Contents Foreword........................................................................... i Limited Warranty ............................................................................................. iCopyright 1996 by ZyXEL ...............................................................
Page 11 - Chapter 1 - Introduction; How to Use this Manual
Chapter 1 - Introduction 1-1 Chapter 1 - Introduction Congratulations on the purchase of your Omni 288S modem - one of ZyXEL'spremier high-performance products. The Omni 288S is world renown for itsability to maintain ultra high speeds and clear, quality connections whilecommunicating around the glo...
Page 12 - Unpacking Your Modem; Enclosed Equipment; one (1) ZyXEL modem driver diskette with Windows 95 INF file
Chapter 1 - Introduction 1-2 Chap 13: Diagnostics & Troubleshooting Tips for resolving modem problems and for using the Omni 288S’s diagnosticcapabilities. Appendix A: Upgrading Your Modem Describes the process for upgrading the Omni 288S with flash EPROM. Appendix B: Contact ZyXEL How to contac...
Page 13 - Becoming a Registered Owner; Standard features
Chapter 1 - Introduction 1-3 Required Equipment In addition to the ZyXEL Omni 288S modem you just purchased, you must havethe 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-...
Page 14 - Intelligent Features; Remote configuration capability; Fax Compatibility; ZyXEL Fax AT commands; Voice Features
Chapter 1 - Introduction 1-4 13 LED lights Extended AT command set with V.25bis ZyCellular Protocol for demanding cellular operations - data and faxtransmission over cellular networks Intelligent Features Automatic data, fax and voice call detection allows you to use a singletelephone line t...
Page 15 - Chapter 1 - Introduction; Technical Specifications; Data/Voice toggle switch
Chapter 1 - Introduction 1-5 Microphone jack is provided to increase the quality of voice recordings Speaker jack lets you plug in an external speaker for clearer output ofrecorded messages. 2, 3, 3-bit new and 4-bit ADPCM for high quality voice digitization withspeech compression at 19.2Kbps,...
Page 16 - Chapter 2 - Installation; Required Steps for Omni 288S Installation; Make sure the modem's power switch is in the OFF position.
Chapter 2 - Installation 2-1 Chapter 2 - Installation This chapter covers the steps required to install your modem, install and configurethe Windows 95 driver, as well as optional steps you may wish to take in thesetup of your Omni 288S. More detailed instructions for various types ofcomputers, such...
Page 17 - Optional Steps for Omni 288S Installation; Telephone Jack
Chapter 2 - Installation 2-2 type of UART installed in your computer. If your computer hasa 16450 UART, either replace it with a 16550 UART or add aserial 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 t...
Page 18 - Driver and Software Installation; Windows 95 Driver Installation
Chapter 2 - Installation 2-3 speaker. To connect two speakers, obtain a dual-plug adapter that allows themodem speaker jack to drive both speakers. This adapter can be found at mostelectronics stores. Driver and Software Installation This section contains step by step procedures for installing the W...
Page 20 - Windows 95 Dial-up Networking
Chapter 2 - Installation 2-5 Click "Close.” This completes the installation of your Omni 288S modem driver.You may now use programs such as "Dial-Up Networking" with your ZyXELmodem. Windows 95 Dial-up Networking If you have not installed the Dial-Up Networking feature in Windows 95, ple...
Page 24 - Setup for DOS Fax/Modem Software; to the manual that came with the software.
Chapter 2 - Installation 2-9 If the User name and Password are incorrect or missing, type them in. Click on theConnect button and your Omni 288S will dial the number and establish aconnection to your Internet Service Provider. Note: The default protocol for Dial-up Networking is Point-to-PointProtoc...
Page 26 - Chapter 3 - Basic Modem Operation; Chapter 3 - Basic M odem Operation; Understanding AT Commands; Using the Windows 95 Hyper Terminal Program
Chapter 3 - Basic Modem Operation 3-1 Chapter 3 - Basic M odem Operation This chapter covers the basic commands and techniques involved in modemoperation. In many cases, this is the only information you will need in order to getyour Omni 288S up and running with communication software, and to start ...
Page 27 - OK; Dialing and Answering Techniques; Dialing using the ATD Command
Chapter 3 - Basic Modem Operation 3-2 Bits per second: 57600 Data bits: 8 Parity: None Stop bits: 1 Flow Control: Hardware Click “OK” when finished. After you have done this, save your new connectionby selecting “Save” from the “File” menu and click “OK.” A new connectionicon will be added to your H...
Page 28 - Auto-Answer and Hook Controls; Note: In this example, n is a number from 1 to 255 that corresponds to; Making Your First Connection
Chapter 3 - Basic Modem Operation 3-3 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. Dialing Without Waiting for Dial Tone: ATX0D, 555 1212 Originating a call using an Answer Tone: ATDT 555 1212,,,,,,R Rediali...
Page 29 - Quick Tips when issuing AT Commands; Command
Chapter 3 - Basic Modem Operation 3-4 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 processe...
Page 30 - Example; Modem Result Codes
Chapter 3 - Basic Modem Operation 3-5 AT Command Set/Type Example Fax and Voice AT+ commands AT+FCLASS=2 S-Register command ATS0=1 S-Register bit-mapped command (set S- Register bit 1 equal to 1) ATS13.1=1 S-Register inquiry command ATS0? Or ATS13.1? You may browse the lists of available commands fo...
Page 32 - Saving Settings and User Profiles; Helpful Hints for PC Computers; Default Modem Settings for PC’s
Chapter 3 - Basic Modem Operation 3-7 Saving Settings and User Profiles There are some cases where you may wish to save the settings you have made asthe default settings that are recalled when the Omni 288S is powered up. TheAT&WZ command selects the current settings as the power-on profile. The...
Page 33 - AT Command; Echoes command characters; Helpful Hints for Mac Computers; Special AT Command Settings for Mac
Chapter 3 - Basic Modem Operation 3-8 AT Command Description E1 Echoes command characters &C1 Carrier detect follows remote carrier &D2 Modem disconnects on DTR on-to-off transition &K4 Use both V.42 and MNP 4 error correction, and useboth V.42bis and MNP 5 data compression &N0 Modem...
Page 34 - Helpful Hints for UNIX-Based Computers; Serial Cable
Chapter 3 - Basic Modem Operation 3-9 Fewer programs are available to make use of the ZyXEL's fax features. Acommercial software which has found wide acceptance is FaxSTF. It is installedlike a printer driver, thus allowing you to send faxes from almost any programwhich runs on your Macintosh. At th...
Page 35 - Chapter 4 - Advanced Data Communications; Front Panel LEDs
Chapter 4 - Advanced Data Communications 4-1 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 ofthe communications-related terms used in this manual. Fr...
Page 36 - DTE Interface; Synchronous and Asynchronous Communications
Chapter 4 - Advanced Data Communications 4-2 LED V34 V32B Indicates Status OFF OFF Modem is in V.22bis, V.22, or mode slower than 9600bps. OFF ON Modem is in V.32bis or V.32 mode. ON OFF Modem is in V.34 mode. ON ON Modem is in a ZyXEL proprietary mode(ZyX 19.2, ZyX 16.8, or ZyCellular). DTE Interfa...
Page 37 - Communication Protocols and Speeds; Standard; * bis is the old French word for second
Chapter 4 - Advanced Data Communications 4-3 RS-232C or EIA-232D/E RS-232C is the Recommended Standard (RS) of the Electronic IndustriesAssociation (EIA), defining the serial communication interface between a DTEand a DCE. The 232 is basically a serial number for the defined standard.Sometimes it is...
Page 38 - Universal Protocol Compatibility; Various operation modes that can be achieved are as follows:; Choosing the Modem Link Options
Chapter 4 - Advanced Data Communications 4-4 Universal Protocol Compatibility Universal compatibility covers a broad range of ITU-T and BELL standards, andprovides data compression. Various operation modes that can be achieved are as follows: Standard BPS rate(+/-0,01%) Baud rate(+/-0,01%) Modulatio...
Page 39 - Mode; Cellular; Setting the DTE to DCE Rate; The Omni 288S DTE to DCE rate can be determined in three ways:; By default the DTE to DCE rate is equal to the DTE speed set by S20; Disable fixed rate; Error Control
Chapter 4 - Advanced Data Communications 4-5 Certain modes, such as the ZyXEL proprietary modes, Fax mode, and Cellularmodes can be added or omitted from the auto-negotiation process using the S-registers settings listed below. Mode Disable Enable ZyXEL 19200 S43.1=1 S43.1=0 * ZyXEL16800 S43.0=1 S43...
Page 40 - CRC (Cyclical Redundancy Check) Error Detection; Data Compression
Chapter 4 - Advanced Data Communications 4-6 error control protocols, commonly denoted as MNP4 and MNP3. V.42 is astandard developed by ITU-T. V.42 supports both LAPM (Link Access Procedurefor Modem) and MNP4. A V.42 handshake will try an LAPM connection first, andif not successful, it will try MNP4...
Page 41 - Run Length Encoding; Hardware or Software Flow Control; The flow control option is set by AT&Hn as follows:
Chapter 4 - Advanced Data Communications 4-7 The compression efficiency of V.42bis is generally higher than that of MNP5. Insome cases it can be 50% to 100% higher and in other cases it is just slightlyhigher. In general, it is about 50% more efficient. Run Length Encoding Run-length encoding is app...
Page 43 - Chapter 5 - Synchronous Mode Operation; Chapter 5 - Synchronous M ode Operation
Chapter 5 - Synchronous Mode Operation 5-1 Chapter 5 - Synchronous M ode Operation This chapter introduces you to the use of the Omni 288S for synchronousoperation. The modem can be used as a synchronous modem when it is connectedto a synchronous computer or terminal. It is of course necessary to ma...
Page 44 - Clock Options; slave clock is used when in remote digital loopback mode.; RTS Options
Chapter 5 - Synchronous Mode Operation 5-2 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 whichmodulates the data according to this clock. The receiving modem recovers theclock and data f...
Page 45 - Dialing from Synchronous Mode; Using DTR to dial a stored number in synchronous mode. Store the; With; Answering from Synchronous Mode; Manual Answer
Chapter 5 - Synchronous Mode Operation 5-3 You can always use the panel operation to control and configure the modem anduse 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 comman...
Page 46 - Chapter 6 - Leased Line Operation; Connecting to a 2-Wire Leased Line; Line Type Setting; Description; Description; Leased Line Handshaking
Chapter 6 - Leased Line Operation 6-1 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 telephonecompany. 4-wire leased lines use one pair of wires to transmit data...
Page 47 - Manual Connect; Terminating a Leased Line Connection
Chapter 6 - Leased Line Operation 6-2 originator and the other as the answerer. You can set this manually orautomatically. Manual Connect Set the modem to leased-line mode. Type the asynchronous command ATD to theoriginating modem and ATA to the answering. Use AT*Mn or set S14b0 to selectoriginate o...
Page 48 - Chapter 7 - Cellular Mode Operation; Chapter 7 - Cellular M ode Operation; Cellular Phone Systems
Chapter 7 - Cellular Mode Operation 7-1 Chapter 7 - Cellular M ode Operation The Omni 288S is equipped with a special cellular communication mode whichenables the modem to perform reliable high speed data transmissions overcellular phone links. Although all ZyXEL modems can provide the cellular mode...
Page 49 - Cellular Modems and ZyCellular Technology; ZyCellular Modes
Chapter 7 - Cellular Mode Operation 7-2 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 istoo weak will result in lower signal-to-noise ratio at the receiving end. There isan optimum power ...
Page 50 - Cellular Mode Usage; Cellular Modem Installation Examples
Chapter 7 - Cellular Mode Operation 7-3 The MULTI-AUTO mode will automatically adapt to the other modem'scapability, and will request and connect the appropriate mode. If both sides havecellular mode capability and at least one side is using a cellular phone, usingMULTI-AUTO to make or answer a data...
Page 53 - Office Installation
Chapter 7 - Cellular Mode Operation 7-6 Office Installation Naturally, you can install the Omni 288S in an office environment, as with all theother ZyXEL models.
Page 54 - Chapter 8 - Special Functions; Security Functions; Type 1 security is used when the remote modem is also a ZyXEL modem.; Levels of Security; Two levels of security are provided:; User Passwords
Chapter 8 - Special Functions 8-1 Chapter 8 - Special Functions This chapter describes the special features of the Omni 288S, and offersinstructions on how each is used. Security Functions The Omni 288S provides a security function that prevents unauthorized users frommaking connections. Two types o...
Page 55 - Disable security function.; Remote Configuration
Chapter 8 - Special Functions 8-2 ******** 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 promptedto enter the supervisor password first and then be prompted to enter th...
Page 59 - Distinctive Ring
Chapter 8 - Special Functions 8-6 feature. For most other Caller ID schemes, only the Callertelephone 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 haveseveral p...
Page 61 - Setting Up EDR
Chapter 8 - Special Functions 8-8 Setting Up EDR The new EDR can be used at home where multiple phones are installed inparallel. Once this function is enabled, the modem will go into EDR mode afterthe ring disappears, and it will be able to detect the data/fax CNG tone andDTMF tones, and report them...
Page 62 - EDR Application Example; Save the settings in a profile and reset the modem with AT&WZ.
Chapter 8 - Special Functions 8-9 The timing relationship between the Caller ID (if enabled), EDR, and ringdetection is as follows: ring1 ring2 ring3***--------***--------***------------------------------ 3sec 3s 3s 3s S7 timeout +------+---+------+---+------+---+-------------+---- CID/EDR RD EDR RD...
Page 63 - Chapter 9 - Fax Operation; Fax Basics
Chapter 9 - Fax Operation 9-1 Chapter 9 - Fax Operation The Omni 288S can be used as a fax machine, and this chapter explains how. Inthe sections below, we will describe how the modem works as a fax machine, theITU-T T.30 fax protocol, the Class 1, 2, and 2.0 fax commands and ZyXELextended fax AT co...
Page 64 - Fax Command sets; The Omni 288S supports four command sets for fax operation:; Defining the Fax Command Sets
Chapter 9 - Fax Operation 9-2 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 andprocedures. The modem takes full con...
Page 65 - Class 1 Command Set
Chapter 9 - Fax Operation 9-3 Class 1 Command Set Command Value Description +FCLASS=n Service class selection n=0 Set to Data mode n=1 Set to Class 1 mode n=2 Set 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 +F...
Page 66 - Class 2 Command Set; Command Syntax
Chapter 9 - Fax Operation 9-4 Class 2 Command Set The following Class 2 commands are supported and implemented per TIAPN2388 (8/20/90). Command Syntax Description +<command>=<value> Execute a command or set a parameter. +<command>=? Read permissible settings. +<command>? Read...
Page 67 - DCE capabilities parameters.
Chapter 9 - Fax Operation 9-5 Command Value Description +FCTCRTY=<value> 0-255 ECM retry count; in Error Mode only:The sender will try to send a partial page 4times. <value>=0 to 255; units of 4 retries. Ifthe Continue To Correct (CTC) count is 0, itwill not make any further attempts. +F...
Page 69 - Class 2 Command Responses
Chapter 9 - Fax Operation 9-7 Command Value Description n=1 Received page good. n=2 Page bad; retrain requested. n=3 Page good; retrain requested. n=4 Page bad; procedure interrupt requested. n=5 Page good; procedure interrupt requested. +FREL=n Phase C received EOL alignment: n=0 The EOL patterns a...
Page 70 - Class 2 Flow Control; Class 2.0 Command Set; Supported Commands
Chapter 9 - Fax Operation 9-8 Response Value Function and Description +FNSF:"HEX string" Report the non-standard facilities frame response. +FNSS:"HEX string" Report the non-standard setup frame response. +FPOLL Remote polling indication. +FPTS:n Receive page transfer status response...
Page 73 - Class 2.0 Command Responses
Chapter 9 - Fax Operation 9-11 Command Value Description +FRQ=pgl, cbl Quality thresholds parameters: pgl=0-64(HEXvalue) Specify the percentage of good lines (e.g. withnegotiated number of pixels) required for apage considered acceptable. The percentage ofgood lines would be computed by the equation...
Page 74 - Response; Remote polling indication.
Chapter 9 - Fax Operation 9-12 Response Value Function and Description hsc=20-3F Transmit phase B hang up codes. Refer toTIA-592 for details. hsc=40-4F Transmit phase C hang up codes. Refer toTIA-592 for details. hsc=50-6F Transmit phase D hang up codes. Refer toTIA-592 for details. hsc=70-8F Receiv...
Page 75 - Report transition to voice.; Extended Fax AT Command Set; Mode Setting
Chapter 9 - Fax Operation 9-13 Response Value Function and Descriptionparameters. +FTI:"TSI ID string" Remote ID response-Transmit Station ID(TSI). +FVO Report transition to voice. Extended Fax AT Command Set Extended Fax AT Commands are unique to ZyXEL modems. The computercontrols the modem...
Page 76 - Parameter Setting
Chapter 9 - Fax Operation 9-14 Command Function #B3 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: 1...
Page 77 - Status Report Result Codes; Field
Chapter 9 - Fax Operation 9-15 Status Report Result Codes When the Omni 288S is set in the fax mode, each ATD or ATA command willmake the modem try to establish a fax connection. The Omni 288S will send astatus report result code back to the DTE (computer). NO DIAL TONE Tried to dial but no dial ton...
Page 78 - Flow Control; Fax Reception from a BBS
Chapter 9 - Fax Operation 9-16 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 modemturns CTS off, the buffer inside the modem is...
Page 79 - ExtrnMail ZyXEL errorlevel
Chapter 9 - Fax Operation 9-17 X7#B1+FCLASS=6 Change the connection message to: 300 CONNECT 4800 CONNECT 4800 1200 CONNECT 1200 9600 CONNECT 7200 1275 CONNECT FAX 19200 CONNECT 9600 2400 CONNECT 2400 38400 CONNECT 14400 Set external mail as: String Error Level 1 ZyXEL 100 23 The following is a s...
Page 80 - Chapter 10 - Voice M ode Operation; Voice Data Compression; Compression Method
Chapter 10 - Voice Mode Operation 10-1 Chapter 10 - Voice M ode Operation Voice mode refers to the Omni 288S’s ability to digitize incoming voicemessages, which the computer stores and forwards. It also means the modem canplayback the recorded digitized voice either off-line for local message listen...
Page 81 - Chapter 10 - Voice Mode Operation; Voice Input/Output Devices; Microphone and Speaker Jacks
Chapter 10 - Voice Mode Operation 10-2 Automatic Detection of Voice, Data, Fax Since there is no way to standardize the way a human voice should behave intelephone calling and answering, it is nearly impossible to automaticallydistinguish a voice call from a fax call from a data call. One common way...
Page 82 - Voice Mode Application Examples; Recording a greeting message
Chapter 10 - Voice Mode Operation 10-3 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<Enter> To select the external microphone as your input device, type: AT+VLS=8<Enter> To selec...
Page 83 - Plaing a voice file through the phone line
Chapter 10 - Voice Mode Operation 10-4 Commands DCE Responses Description AT+VLS=0 OK Deactivate internal speaker. AT+FCLASS=0 OK Return to the data mode. Plaing a voice file through the phone line Commands DCE Responses Description AT+FCLASS=8 OK Switches to voice mode. AT+VSM=? (reference table) L...
Page 84 - Omni 288S as a Data answering machine
Chapter 10 - Voice Mode Operation 10-5 Command DCE Response Description AT+FCLASS=8 OK Switch to voice mode. AT+VSM=? (reference table) List the compression schemes AT+VSM=4 OK Select 4-bit ADPCM for greeting message. AT+VLS=2 VCON Connect to line. AT+VTX CONNECT <DATA><DLE>c or<DLE&g...
Page 85 - Voice States and Operation Modes; Voice Command State
Chapter 10 - Voice Mode Operation 10-6 Voice States and Operation Modes The Omni 288’s Voice Mode DCE control interface adheres to the TIA TR29.2committee IS-101 Interim Standard. ZyXEL is continuously enhancing itsmodems' voice capability and voice feature implementation. Please refer tofuture manu...
Page 86 - Voice Data States
Chapter 10 - Voice Mode Operation 10-7 The Voice Command State provides several DTE options. The modem may waitfor an unspecified time after playing a welcome message, or switch to othermodes as part of a DTE call discrimination algorithm. Voice Data States The DCE is in Voice Data State when the DC...
Page 87 - Events and Actions with Shielded Code; Event Detection and Reporting
Chapter 10 - Voice Mode Operation 10-8 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 toPSTN -generated control and notifica...
Page 88 - Action Commands in Voice Data State
Chapter 10 - Voice Mode Operation 10-9 <code> Event Report Description 7 (0x37) DTMF 7 8 (0x38) DTMF 8 9 (0x39) DTMF 9 0 (0x30) DTMF 0 A (0x41) Extended Keypad DTMF A B (0x42) Extended Keypad DTMF B C (0x43) Extended Keypad DTMF C D (0x44) Extended Keypad DTMF D * (0x2A) Extended Keypad DTMF *...
Page 89 - Voice AT Commands
Chapter 10 - Voice Mode Operation 10-10 <code> Event Report Description u (0x75) Turn up the volume or gain by one unit. d (0x64) Turn down the volume or gain by one unit. p (0x70) Pause Data State: The DCE suspends sending analog data to the currently selected analog destination. While pausin...
Page 90 - AT Command Syntax; Command-Form Function; Response Syntax
Chapter 10 - Voice Mode Operation 10-11 AT Command Syntax AT is the command line prefix. Voice commands take one of the following forms: Command-Form Syntax Command-Form Function +V<CM>? Read current setting. +V<CM>=? Read permissible settings. +V<CM>=<string> Set single-valu...
Page 91 - Supported Commands in Voice Mode Operation
Chapter 10 - Voice Mode Operation 10-12 The DTE can select the flow control method in voice mode by using the +FLOcommand (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 currentdest...
Page 93 - Flow Control Method; XON/XOFF and RTS/CTS flow control turned off; Voice Mode Action Commands
Chapter 10 - Voice Mode Operation 10-14 <method> Flow Control Method 0 XON/XOFF and RTS/CTS flow control turned off 1 Use software XON/XOFF flow control in either direction. 2 Use hardware RTS/CTS flow control. The DCE returns the OK result code if the DCE accepts the command. The DCEreturns t...
Page 95 - Voice Mode Configuration Commands; The DCE will return current gain, followed by the OK result code.
Chapter 10 - Voice Mode Operation 10-16 This command causes the DCE to start the voice transmission process. The DCEbegins the Voice Transmission Mode by returning the CONNECT result code tothe DTE. After this report, the DCE accepts <DLE> shielded voice data from theDTE. The DTE shall send th...
Page 99 - Chapter 11 - AT Command Set Summaries; Basic AT Command Set
Chapter 11 - AT Command Set Summaries 11-1 Chapter 11 - 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 callup to 9 times. (See also S8) <any key> Termina...
Page 101 - Description of ATI2 Output:; The Link Status Report output appears as follows:
Chapter 11 - AT Command Set Summaries 11-3 Description of ATI2 Output: The Link Status Report output appears as follows: ZyXEL MODEMS LINK STATUS REPORT Chars Sent 0 Chars Received 0 Octets Sent 0 Octets Received 0 Blocks Sent 0 Blocks Received 0 Blocks Resent 0 Max Outstanding 0 Max Block Size 0 Re...
Page 102 - Extended AT& Command Set
Chapter 11 - AT Command Set Summaries 11-4 Extended AT& Command Set Command Options Function & Description Ref. &Bn Data rate, terminal-to-modem. (DTE/DCE) S28.6 &B0 DTE rate follows connection rate. (See also S44.6) &B1 * DTE/DCE rate fixed at DTE setting (See also S18, S20, and...
Page 105 - Extended AT* Command Set
Chapter 11 - AT Command Set Summaries 11-7 Extended AT* Command Set Command Options Function & Description Ref. *Cn Character length, including start, stop and parity bit. S15.3-4 *C0 * 10-bit character length. *C1 11-bit character length. *C2 9-bit character length. *C3 8-bit character length. ...
Page 106 - The AT+F commands are located in the chapter on Fax Operation.
Chapter 11 - AT Command Set Summaries 11-8 Command Options Function & Description Ref. a=0-3 Local user profile number “a” S37.4-7 b=0-3 Remote user profile number “b” S37.0-3 b=4 Remote active configuration b=5 Remote factory default configuration *T Recall the last CND (Caller ID) information....
Page 107 - Chapter 12 - Status Registers & Result Codes; S-Register Descriptions
Chapter 12 - Status Registers & Result Codes 12-1 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 arefollowed by an asterisk. In some cases, default values are shown in the refence columnpre...
Page 116 - Result Code Options
Chapter 12 - Status Registers & Result Codes 12-10 Bit S-register bit number, 'b', used in 'ATSr.b=n' and 'ATSr.b=?' dec Decimal value, 'x', used in 'ATSn=x' hex Equivalent Hexadecimal value. +nnn Factory default when listed in 'Reference' column. Note: 'AT' is omitted when an AT command is refe...
Page 117 - Result Code Field Descriptions; Connect Strings for Error Corrected Connections
Chapter 12 - Status Registers & Result Codes 12-11 ATV0 ATV1 X0 X1 X2 X3 X4 X5 X6 X7 34 CONNECT 41600 % % % % @ 36 CONNECT 24960 % % % % @ 37 CONNECT 20800 % % % % @ 39 CONNECT 28800 % % % % @ $ # 40 CONNECT 26400 % % % % @ $ # 41 CONNECT 24000 % % % % @ $ # 42 CONNECT 21600 % % % % @ $ # * Use ...
Page 118 - Chapter 13 - Diagnostics & Troubleshooting; Diagnostics; Error Condition / Status
Chapter 13 - Diagnostics & Troubleshooting 13-1 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 Digit...
Page 119 - Chapter 13 - Diagnostics & Troubleshooting; Resetting The Modem
Chapter 13 - Diagnostics & Troubleshooting 13-2 Resetting The Modem If you change the modem's setting and cannot get it back, or if you just want to getback to the factory default state, the following reset procedure will reset themodem to the factory state. This procedure also causes the modem ...
Page 120 - Indicator Lights; Retransmission Indicator
Chapter 13 - Diagnostics & Troubleshooting 13-3 characters. You can see the result on the screen. In the synchronous mode, thepattern is made up of scrambled binary 1 and the Throughput Meter will change toa Bit Error Rate Meter. The left reader displays accumulated bit errors while theright rea...
Page 121 - Trouble Shooting; AT Command Set Problems; Problem
Chapter 13 - Diagnostics & Troubleshooting 13-4 Dialing Indicator The V32b LED will flash on and off for 1/2 second each to indicate that themodem is dialing. This flash will continue after dialing until a carrier is detected.Therefore, the V32b LED will also flash in leased-line modem connectio...
Page 122 - Command Echo Problems
Chapter 13 - Diagnostics & Troubleshooting 13-5 Problem You typed an AT command, but did not receive an OK or 0 result code. Solutions 1. Your communications software may be using a different COM port than your modem. Be sure both the software and your modem are addressing the sameCOM po...
Page 124 - Connect Problems; Your modem disconnects while communicating with a remote system.; Solutions
Chapter 13 - Diagnostics & Troubleshooting 13-7 You can make a data connection with a remote modem, but encounter frequenterrors during data transfers. Solutions 1. Your modem and communications software may be configured for different flow control methods. Be sure your modem and software ar...
Page 125 - Appendix A - Upgrading Your Modem; Upgrading by Flash EPROM; Obtain the new firmware by downloading from the ZyXEL BBS, WWW or; Use the XModem protocol to upload the file Omni vvv to your modem.; This step updates the modem’s flash EPROM with the latest firmware.; Kernel Recovery Mode
Appendix A - Upgrading Your Modem A-1 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 ...
Page 126 - Appendix B - Contacting ZyXEL; ZyXEL Phone Numbers; Voice Telephone Numbers
Appendix B - Contacting ZyXEL B-1 Appendix B - Contacting ZyXEL ZyXEL takes pride in it products and its customers. We are continually striving toimprove 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 convenien...
Page 127 - Online Access; Internet; World Wide Web; CompuServe
Appendix B - Contacting ZyXEL B-2 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: [email protected] Technical support: [email protected] ; in the U.S. or [email protected] ; outside the U.S. Wor...
Page 128 - Appendix C - Connector Pinouts; Phone Jack Pinouts; The Omni 288S is equipped with two RJ11 phone jacks:; PC Serial Port Pinouts
Appendix C - Connector Pinouts C-1 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 A 2 RING 3 TIP 4 A1 The s...
Page 129 - Macintosh Serial Port Pinouts
Appendix C - Connector Pinouts C-2 Macintosh Serial Port Pinouts The following table shows the wiring of a modem Macintosh hardwarehandshaking cable: MacDin 8 ModemDB 25 Description 1 4 & 20 DTR to RTS and DTR, Hardware Handshaking Out 2 5 CTS to CTS, Hardware Handshaking In 3 2 TX- to TXD, Data...
Page 130 - Glossary
Glossary D-1 Analog: Not digital. Analog quantities may have any value. Analog loopback test: Testing method in which the modem's analog output signal isconnected to the analog input. Answer: In a connection between two modems, one modem works as the recipient (inanswer mode) and the second modem as...