Instruction/ maintenance manual of the product Omni 288S ZyXEL Communications
Go to page of 136
Omni 288S User’s Manual JiH5< 3 5*+39 5 , : .+ 3 /22+44/;3.
Foreword i 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 ii 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.
Foreword iii 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.
Foreword iv 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.
Table of Contents Foreword ........................................................................... i Limited Warranty ............................................................................................. i Copyright 1996 by ZyXEL .........
Default Modem Settings for PC’s .................................................................... 3- 7 ZyXEL Serial/Parallel I/O Card ..................................................................... 3- 8 Helpful Hints for Mac Computers .....
Chapter 7 - Cellular Mode Operation .............................7 -1 Cellular Phone Systems .................................................................................. 7- 1 Cellular Impairments .................................................
Recording a greeting message ...................................................................... 10-3 Playing a voice file through the internal speaker ........................................... 10-3 Plaing a voice file through the phone line ....
Appendix B - Contacting ZyXEL .................................. B -1 ZyXEL Phone Numbers ..................................................................................B-1 Online Access .............................................................
Chapter 1 - Introduction 1-1 C hap t er 1 - Introduc tion 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.
Chapter 1 - Introduction 1-2 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.
Chapter 1 - Introduction 1-3 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 .
Chapter 1 - Introduction 1-4 13 LED lights Extended AT command set with V.25bis ZyCellular Protocol for demanding cellular operations - data and fax transmission over cellular net.
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 of recorded messages. 2, 3, 3-bit new and 4-bit ADPCM for high quality voice digitization with speech compression at 19.
Chapter 2 - Installation 2-1 C hap t er 2 - Ins t allatio n 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.
Chapter 2 - Installation 2-2 ty pe of UA RT i nst al l ed i n y our computer . I f your compute r has a 16450 UA RT, eit her repl ace i t wit h a 16550 UA RT 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.
Chapter 2 - Installation 2-3 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.
Chapter 2 - Installation 2-4 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.
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 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.
Chapter 2 - Installation 2-6 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 2-7 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.
Chapter 2 - Installation 2-8 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.
Chapter 2 - Installation 2-9 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 defaul t prot ocol f or Dial - up Networki ng i s Point - to- Point Pro t oc ol (PPP) .
Chapter 2 - Installation 2-10 3. Select the following communication settings: Setting Value Baud rate 57,600bps Data bits 8 Parity Non e Stop bits 1 Flow control Hardware Initialization string AT&.
Chapter 3 - Basic Modem Operation 3-1 C hap t er 3 - B as ic M od em O perat io n 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.
Chapter 3 - Basic Modem Operation 3-2 Bits per second: 57600 Data bits: 8 Parity: No ne Stop bits: 1 Flow Control: Hardware Click “OK” when finished. After you have done this, save your new connection by selecting “Save” from the “File” menu and click “OK.
Chapter 3 - Basic Modem Operation 3-3 Pausing During Dialing: ATDT 9 ,, 555 1212 Not e : The pause t i me f or each comm a i s def i ned by S Regi st er S8.
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.
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.
Chapter 3 - Basic Modem Operation 3-6 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.
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 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.
Chapter 3 - Basic Modem Operation 3-8 AT Command Description E1 Echoes command characters &C 1 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 use both V.
Chapter 3 - Basic Modem Operation 3-9 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.
Chapter 4 - Advanced Data Communications 4-1 C hap t er 4 - A dva nc e d Da ta Com m unic a tions 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.
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.
Chapter 4 - Advanced Data Communications 4-3 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.
Chapter 4 - Advanced Data Communications 4-4 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 BPS rate (+/-0,01%) Baud rate (+/-0,01%) Modulation Carrier Freq [Hz] V.
Chapter 4 - Advanced Data Communications 4-5 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 S- registers settings listed below. Mode Disable Enable ZyXEL 19200 S43.
Chapter 4 - Advanced Data Communications 4-6 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.
Chapter 4 - Advanced Data Communications 4-7 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.
Chapter 4 - Advanced Data Communications 4-8 &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.
Chapter 5 - Synchronous Mode Operation 5-1 C hap t er 5 - S y nc hronous M ode Oper a tion 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.
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 which modulates the data according to this clock.
Chapter 5 - Synchronous Mode Operation 5-3 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.
Chapter 6 - Leased Line Operation 6-1 C hap t er 6 - Leas ed Li ne O per at ion 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.
Chapter 6 - Leased Line Operation 6-2 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.
Chapter 7 - Cellular Mode Operation 7-1 C hap t er 7 - Cellular M ode O peratio n 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.
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 is too weak will result in lower signal-to-noise ratio at the receiving end.
Chapter 7 - Cellular Mode Operation 7-3 The MULTI-AUTO mode will automatically adapt to the other modem's capability, and will request and connect the appropriate mode.
Chapter 7 - Cellular Mode Operation 7-4 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.
Chapter 7 - Cellular Mode Operation 7-5 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 headphone- microphone 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 7-6 Office Installation Naturally, you can install the Omni 288S in an office environment, as with all the other ZyXEL models.
Chapter 8 - Special Functions 8-1 C hap t er 8 - S pe c i a l Func ti ons 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.
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 prompted to enter the supervisor password first and then be prompted to enter the nth user password.
Chapter 8 - Special Functions 8-3 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 8-4 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.
Chapter 8 - Special Functions 8-5 CALLER NUMBER: 7135551414 or CALLER NAME: Jack Smith RING In the multiple message format, if the caller’s number and name are available, the ring message will displ.
Chapter 8 - Special Functions 8-6 fe atur e. For most ot her Call er ID schemes, onl y t he Call er 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.
Chapter 8 - Special Functions 8-7 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: C ount ri es other than t he U .S. may have d ifferen t spe cific atio ns for diffe ren t ring typ es.
Chapter 8 - Special Functions 8-8 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.
Chapter 8 - Special Functions 8-9 The timing relationship between the Caller ID (if enabled), EDR, and ring detection is as follows: ring1 ring2 ring3 ***--------***--------***------------------------.
Chapter 9 - Fax Operation 9-1 C hap t er 9 - Fax O per at io n 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.
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 and procedures.
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 Not e : I f S57.
Chapter 9 - Fax Operation 9-4 Class 2 Command Set The following Class 2 commands are supported and implemented per TIA PN2388 (8/20/90). Command Syntax Description +<command>=<value> Execute a command or set a parameter. +<command>=? Read permissible settings.
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 4 times. <value>=0 to 255; units of 4 retries. If the Continue To Correct (CTC) count is 0, it will not make any further attempts.
Chapter 9 - Fax Operation 9-6 Command Value Description +FDR Receive phase C data command; initiates document reception. +FDT= df,vr,wd, ln Transmit phase C data command: release the DCE to proceed with negotiation. +FECM= n Error mode control: n= 0 Error mode is disabled.
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 are bit aligned as received.
Chapter 9 - Fax Operation 9-8 Response Value Function and Description +FNSF:"HEX string" Report t h e n o n -s t a n d a rd f a c ilit ie s f ram e re spo n se. +FNSS:"HEX string" Report the non-standard setup frame response. +FPOLL Re m ote polling indication.
Chapter 9 - Fax Operation 9-9 Command Value Description disabled. tq=1 DCE Transmit Copy Quality Checking enabled. tq=2 DCE Transmit Copy Quality Correction enabled. +FCR= n "Capability to receive" parameter n= 0 DCE will not receive message or poll a remote device.
Chapter 9 - Fax Operation 9-10 Command Value Description +FMI? Request DCE manufacturer identification. +FMM? Request DCE model identification. +FMR? Request DCE revision identification. +FMS= n Minimum phase C speed parameter. refer to +FMINSP Class 2 command in previos section for parameter settings.
Chapter 9 - Fax Operation 9-11 Command Value Description +FRQ= pgl, cbl Quality thresholds parameters: pgl= 0-64 (HEX value) Specify the percentage of good lines (e.
Chapter 9 - Fax Operation 9-12 Response Value Function and Description hsc= 20-3F Transmit phase B hang up codes. Refer to TIA-592 for details. hsc= 40-4F Transmit phase C hang up codes. Refer to TIA-592 for details. hsc= 50-6F Transmit phase D hang up codes.
Chapter 9 - Fax Operation 9-13 Response Value Function and Description parameters. +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.
Chapter 9 - Fax Operation 9-14 Command Function #B3 Displays the ring cadence. Parameter Setting Command Function #V 0 Set to normal vertical resolution. #V 1 Set to high vertical resolution. #T0 Set to one dimensional coding scheme. #T1 Set to two dimensional coding scheme.
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 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).
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 modem turns CTS off, the buffer inside the modem is full and cannot accept any more data.
Chapter 9 - Fax Operation 9-17 X7#B1+FCLASS=6 Change the connection message to: 30 0 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 1 0 0 2 3 The following is a sample setting in the BINKLEY.
Chapter 10 - Voice Mode Operation 10-1 C hap t er 10 - V o ice M od e O per at io n Voice mode refers to the Omni 288S’s ability to digitize incoming voice messages, which the computer stores and forwards.
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 in telephone calling and answering, it is nearly impossible to automatically distinguish a voice call from a fax call from a data call.
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<En.
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.
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.
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 TR29.2 committee IS-101 Interim Standard. ZyXEL is continuously enhancing its modems' voice capability and voice feature implementation.
Chapter 10 - Voice Mode Operation 10-7 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.
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 to PSTN -generated control and notification signals such as ringing.
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 DT.
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.
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.
Chapter 10 - Voice Mode Operation 10-12 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.
Chapter 10 - Voice Mode Operation 10-13 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 <mode> subparameter is not permitted. AT+FCLASS? The DCE returns the current mode setting followed by the OK result code.
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.
Chapter 10 - Voice Mode Operation 10-15 2. The DTE sends a <DLE><!> shielded code. 3. A DTE/DCE Inactivity Timer time-out. Upon termination of the voice state, the DCE will append a <DLE><ETX> character pair, 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 DCE begins the Voice Transmission Mode by returning the CONNECT result code to the DTE. After this report, the DCE accepts <DLE> shielded voice data from the DTE.
Chapter 10 - Voice Mode Operation 10-17 The DCE returns the result code OK if DCE accepts this command, or it returns the result code ERROR if the <level> parameter is out of range. AT+VGT? The DCE returns the current gain, followed by the OK result code.
Chapter 10 - Voice Mode Operation 10-18 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 <device> value is not permitted. AT+VLS? The DCE will return the current I/O device followed by the OK result code.
Chapter 10 - Voice Mode Operation 10-19 OK AT+VSM=<cml>,<vsr> This command causes the DCE to select a compression scheme and sample rate as follows: <cml> Compression S.
Chapter 1 1 - AT Command Set Summaries 11-1 C hap t er 11 - A T C o mma n d S e t Su mma r i e s Basic AT Command Set Command Options Function & Description Ref. A/ Re-execute the last command once A> Re-execute the last command once or repeat the last call up to 9 times.
Chapter 1 1 - AT Command Set Summaries 11-2 Command Options Function & Description Ref. M2 Speaker always ON M3 Speaker ON after the last digit is dialed out and OFF when carrier is detected N n n=0-7 5 * Ring volume control.'N0' will disable the audio ring function S24.
Chapter 1 1 - 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 Oc.
Chapter 1 1 - AT Command Set Summaries 11-4 Extended AT& Command Set Command Options Function & Description Ref. &B n 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 S44.
Chapter 1 1 - AT Command Set Summaries 11-5 Command Options Function & Description Ref. &N0 * Multi-Auto, auto negotiate highest possible link rate: V.34, ZyX 19200, ZyX16800, V.32bis, V.32, V.22bis, V.22 and Bell 212A, G3 Fax V.17/V.29/V.27ter and cellular modes.
Chapter 1 1 - AT Command Set Summaries 11-6 Command Options Function & Description Ref. &R0 CTS tracks RTS, response delay is set in S26 &R1 * Ignore RTS, assumes RTS always ON &Sn Data Set Ready (DSR) function selection. S21.3 &S0 * DSR overridden, DSR always ON.
Chapter 1 1 - 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. *C 1 11-bit character length. *C 2 9-bit character length.
Chapter 1 1 - 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.
Chapter 12 - Status Registers & Result Codes 12-1 C hap t er 12 - S ta tus Regi ster s & Re sult Code s 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 +.
Chapter 12 - Status Registers & Result Codes 12-2 Command bit dec hex Function and description Ref. 8 8 4-wire leased line - if available &L2 5, 4 0 0 Internal clock (Default) &X 0 16 1 0 .
Chapter 12 - Status Registers & Result Codes 12-3 Command bit dec hex Function and description Ref. S20= dec h e x DTE speed (bps). Auto detected from AT Command +003 0 0 230400 bps 1 1 115200 bps.
Chapter 12 - Status Registers & Result Codes 12-4 Command bit dec hex Function and description Ref. 5 0 0 CTS Follows RTS in synchronous mode. Response delay set in S26 &R0 32 20 Ignore RTS (CTS always ON) in synchronous mode. (Default) &D2 6 - 7 0 0 Assume DTR always On &D0 64 40 108.
Chapter 12 - Status Registers & Result Codes 12-5 Command bit dec hex Function and description Ref. S25= 0-255 0-FF Specify the time delay that DTR signal needs to be OFF before it will be recognized, in 10 ms units.
Chapter 12 - Status Registers & Result Codes 12-6 Command bit dec hex Function and description Ref. 6 6 4 30 Enable password protection to profile saving. When ‘AT&W0’ is issued, and profile 0 in the NVRAM has this bit set, the supervisory password will be requested.
Chapter 12 - Status Registers & Result Codes 12-7 Command bit dec hex Function and description Ref. 1 2 2 No result code displayed in answer mode Q 2 S41= b it dec h e x Bit mapped register +000 0 1 1 Special MNP compatibility (see also S27.0, S38.
Chapter 12 - Status Registers & Result Codes 12-8 Command bit dec hex Function and description Ref. 6 6 4 40 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 12-9 Command bit dec hex Function and description Ref. 0-255 0-FF The modem counts when there is no data flow in or out of the RS-232 serial port. A connection is disengaged when the counter reaches the preset value.
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.
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 S42.
Chapter 13 - Diagnostics & Troubleshooting 13-1 C hap t er 13 - Di a gnostic s & T roubl e shooting Diagnostics The Omni 288 is equipped with several diagnostic capabilities: Power-on S.
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 get back to the factory default state, the following reset procedure will reset the modem to the factory state.
Chapter 13 - Diagnostics & Troubleshooting 13-3 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.
Chapter 13 - Diagnostics & Troubleshooting 13-4 Dialing Indicator The V32b LED will flash on and off for 1/2 second each to indicate that the modem is dialing.
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 same COM port.
Chapter 13 - Diagnostics & Troubleshooting 13-6 Answer Problems Problem Your modem does not auto-answer incoming calls. Solutions 1. Make sure the supplied telephone cable is connected to your modem’s LINE jack and not the PHONE jack.
Chapter 13 - Diagnostics & Troubleshooting 13-7 You can make a data connection with a remote modem, but encounter frequent errors during data transfers. Solutions 1. Your modem and communications software may be configured for different flow control methods.
Appendix A - Upgrading Your Modem A-1 A ppe ndi x 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.
Appendix B - Contacting ZyXEL B-1 A ppe ndi x 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.
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: sales@zyxel.com Technical support: support@zyxel.com ; in the U.S.
Appendix C - Connector Pinouts C-1 A ppe ndi x 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.
Appendix C - Connector Pinouts C-2 Macintosh Serial Port Pinouts The following table shows the wiring of a modem Macintosh hardware handshaking cable: Mac Din 8 Modem DB 25 Description 1 4 & 20 DT.
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 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).
Glossary D-2 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.
Glossary D-3 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.
Glossary D-4 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.
Glossary D-5 MNP : Protocols for error correction and data compression from Microcom, Inc. Modem : An artificial word concatenated from mo dulator and dem odulator. A modem translates the digital signals received from its local DTE to analog signals which are transmitted via a telephone line.
Glossary D-6 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.
Glossary D-7 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.
An important point after buying a device ZyXEL Communications Omni 288S (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought ZyXEL Communications Omni 288S yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data ZyXEL Communications Omni 288S - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, ZyXEL Communications Omni 288S you will learn all the available features of the product, as well as information on its operation. The information that you get ZyXEL Communications Omni 288S will certainly help you make a decision on the purchase.
If you already are a holder of ZyXEL Communications Omni 288S, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime ZyXEL Communications Omni 288S.
However, one of the most important roles played by the user manual is to help in solving problems with ZyXEL Communications Omni 288S. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device ZyXEL Communications Omni 288S along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
