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1. causes the modem to go on hook hang up for one half second Also controlled by the ATH command L LAPM Link Access Protocol Modem A V 42 ARQ type of error correction protocol which is controlled by S Register 46 where LAPM may be activated with or without V 42bis data compression leased line Also referred to as a private line A leased line is obtained from a communications company carrier to provide a transmission medium between two points The line consists of a permanent dedicated circuit between two points or to set of previously arranged points The cost of the line is usually based on the distance between locations This is in contrast to switched or dial up lines which can be connected to any point on the network line modulation The means by which a carrier is varied to represent a signal carrying information In a modem the user s digital data is used to modulate the modem s transmitter s carrier or carrier to allow the digital signal to be carried over analog facilities 14 4Kbps BOCAMODEM 77 long space disconnect Determines whether or not modem disconnects when it receives a continuous break from a remote modem Controlled by the ATY command loopback tests There are four types of loopback tests which are as follows 1 the local digital loopback tests the operation of the DTE including whether or not data is leaving the terminal or computer port 2 the local analog loopback tests the digita
2. nstallation 26 2 If a phone is connected to the telephone wall jack unplug the phone cable Then plug the other end of the modem cable into the telephone wall jack 3 To continue using the phone connect the phone cable into the PHONE jack on the modem board PHONE jack To phone RuJ 11 line 14 4Kbps BOCAMODEM 27 Testing the Connection 1 2 Start your communications software and Power on the computer If you are using a telephone check for a dial tone using the telephone handset If a dial tone is heard continue If you do not hear a dial tone check the connections you made in the previous subsection or refer to Troubleshooting Section Four Install your communications software and place it in command mode Refer to the software manual for additional information AT commands typed at the DOS prompt will result in a Bad Command or File Name message enter terminal mode Type in ATZ followed by ENTER and the modem will respond with OK after a few seconds If the modem does not respond OK refer to Troubleshooting Section Four Type ATH1 followed by ENTER and you should hear a dial tone from the modem speaker To adjust speaker volume refer to your communications software or use the ATL command Type ATH followed by ENTER to put the modem on hook This confirms that the modem has been successfully installed into the computer Your 14 4Kbps internal modem is n
3. 80 Index A AC wall socket 15 Asynchronous Mode 56 AT Command Reference 51 57 Automode Enable 52 B Bell standards 35 C CCITT 35 COM ports 22 23 Command Protocol Reference 33 36 Communication Settings 22 Communications Software 18 Compatibility 42 Compliance Information 43 46 Connecting the Phone Line 14 25 Contents of Your Package external 12 Contents of Your Package internal 21 Control Long Space Disconnect 54 14 4Kbps BOCAMODEM D Data Carrier Detect 55 Data Communication Protocols 35 Data Terminal Ready 55 Data transmission rates 9 DB 25 25 pin male connector 13 Dial Modifiers 51 Dial Stored Number 47 DTE Modem Flow Control 55 56 E Echo command 29 Electronic BBS 48 Error Message Control 53 Escape Characters 54 Extended AT command for V 42 V 42bis 34 Extended AT command for MNP 34 Extended AT command sets 33 55 57 Extended Result Codes F Fax Data Rate 42 Fax Modulation Protocols 42 FCC Requirements 5 43 46 Features 9 53 54 81 G Glossary 72 79 Group III send and receive fax capability 9 H Hardware Diagnostics 37 41 Hayes AT command set 9 33 51 57 Hook flash 51 I Initialization INIT string 10 Installation Hints 10 Internal Installation 21 27 Interrupt sharing 22 23 IRQ settings 22 23 L LED Status Indicators 42 Local Analog Loopback Test 37 Local Analog Loopback Test with Self Test 38 M Make B
4. Terminal Ready Carrier Detect Status FLASHES when modem is in test mode and if any errors are detected ON when in Auto Answer mode and when online with the host modem ON when the 14 4Kbps Modem is powered on or communicating with another modem at 4800bps or faster ON when the 14 4Kbps Modem takes control of the telephone line to establish a data link FLASHES when a data bit is sent to the 14 4Kbps Modem by the computer FLASHES when a data bit is received from the phone line or when the modem sends result codes to the computer ON when the modem receives a data terminal ready signal from the computer via the RS 232 cable ON when the modem receives a valid data signal carrier from a remote modem Ready for data transmission Installation 20 2 7 Testing the Connection 1 If you are using a telephone check for a dial tone using the telephone handset If a dial tone is heard continue with the next step If you do not hear a dial tone check the connections you made in 2 4 Preparing the Modem or refer to Troubleshooting Section Four Your communications software should already be loaded as instructed in 2 5 Most communications programs when started are in command mode Refer to the program s documentation for additional information Type in the command ATZ followed by ENTER and the 14 4Kbps Modem will respond with OK If the 14 4Kbps Modem does not respond with
5. default Switch Hook Contol ATHO Instructs modem to go on hook ATH1 Instructs modem to go off hook Modem Identification ATIO Displays the product identification code ATII Displays the checksum ATI2 Displays ROM checksum as OK or ERROR ATI3 Displays the firmware revision level Speaker volume ATLO Off or low volume ATL1 Low volume default ATL2 Medium volume ATL3 High volume Speaker contol ATMO Disables the modem speaker ATM1 Turns speaker on until carrier has been detected default ATM2 Instructs the modem speaker to stay on all of the time ATM3 Enables speaker after dialing until connection is established Automode enable ATNO Requires speed of the connection be that specified by the value of 37 ATN1 Permits handshaking at any speed supported by both modems default 14 4Kbps BOCAMODEM 53 Command Description Retum to on line state mode ATOO Switches the modem from command mode to on line mode without dialing ATO1 Switches from command mode to on line mode an initiates an equalizer retrain sequence during 2400 baud bps operation Mode responses ATQO Enables result codes to be issued to the screen default ATQ1 Disables result codes to be issued to the screen Result code format ATVO Numeric format ATV1 Verbal format default Enor correction message contol ATWO Error correction call progress not reported default ATW1 Call progress reported ATW2 Cal
6. Issue an ATSO 1 to allow the remote modem to auto answer the incoming call 6 Set timer register S18 of the local modem for desired test time in seconds Example ATS18 10 provides for a 10 second test 7 Issue a dial command to the local modem to instruct it to call the remote modem Wait until the two modems have established a connection 8 Type the escape sequence to revert to the command mode The modem will respond with OK 9 Type AT amp T7 ENTER to initiate the remote digital loopback test The local modem will send a test pattern to the remote modem This pattern will not be visible on the screen 10 The modem will then send a three digit value indicating the number of errors detected during testing If the result is 000 no errors were found Hardware Diagnostics 42 Appendix C echnical Specifications Modem Data Rate 14 4K 12K 9600 7200 4800 2400 1200 or 300bps Fax Data Rate 14 4K 12K 9600 7200 4800 2400bps Protocol Compatibility CCITT CCITT V 32bis 14 4Kbps V 32 9600bps V 42 V 22 2400bps V 21 1200bps Bell Bell 212A 1200bps Bell 103 300bps Fax Modulation Protocols V 29 9600 7200bps transmit and receive V 27 ter 4800 2400bps transmit and receive V 21 channel 2 300bps transmit and receive V 42 MNP2 4 and V 42bis MNP5 support LED Status Indicators TM AA HS OH SD RD TR CD EXTERNAL Diagnostics e Local remote digital and analo
7. OK refer to the Troubleshooting section of this manual Start your communications software and enter terminal mode AT commands typed in at the DOS prompt will result in a Bad command or file name message Type ATH1 followed by ENTER and you should hear a dial tone from the speaker on the modem Type ATH followed by ENTER to put the modem on hook This confirms that the 14 4Kbps Modem has been successfully installed into the computer Your 14 4Kbps Modem is now ready for use Continue now with your communications software and documentation 14 4Kbps BOCAMODEM 21 Section Three Installation Intemal Model This section explains how to install the Boca Research internal 14 4Kbps Modem in your computer 3 1 The Contents of Your Package Verify that your modem package contains the following items COMMUNICATIONS INSTALLATION INTERNAL SOFTWARE amp MANUAL MANUAL 14 4Kbps E RJ 11 CABLE If any items are missing or damaged contact the vendor from whom you purchased the modem for assistance Installation 22 3 2 Communication Settings The 14 4Kbps Modem can be configured as COM1 COM2 COM3 or COM4 The default setting for the modem is COM3 using IRQ5 The modem cannot share the same interrupt with any other device One way to avoid interrupt sharing is to select a non standard interrupt i e IRQ if it is available such as IRQ5 However the communications software must be
8. and Canada default AT amp P1 Selects a make break ratio of 33 67 at 10pps UK and Hong Kong AT amp P2 Same as 0 except at 20pps AT amp P3 Same as 1 except at 20pps Asynchronous mode AT amp Q0 Direct Asynchronous mode AT amp Q5 Modem negotiates an error corrected link default AT amp Q6 Selects asynchronous operation in normal mode i e speed buffering Data Set Read signal AT amp SO Causes DSR signal to be active at all times default AT amp S1 Causes DSR signal to be active according to the CCITT specification 14 4Kbps BOCAMODEM 57 Command Description Test and diagnostics AT amp TO Terminates any test in progress AT amp T1 Executes the local analog loopback test AT amp T3 Executes the local digital loopback test AT amp T4 Enables the modem to accept a request from a remote mode for a digital loopback test default AT amp T5 Instructs the modem to deny a request from a remote modem for a digital loopback test AT amp T6 Executes the remote digital loopback test AT amp T7 Executes the remote digital loopback test with a self test AT amp T8 Executes the remote analog loopback test with a self test AT amp V View current configuration and user profile Store user profile Saves the current configuration into non volatile RAM as one of two user profiles AT amp WO Saves as user profile 0 AT amp W1 Saves as user profile 1 Designate default user profile AT amp Y0 Selects user prof
9. can purchase an adapter to convert your jack into an RJ 11C jack Adapters may be purchased from any local phone or electronics store Copyright 1995 Boca Research Inc All rights reserved No reproduction of this document in any form is allowed without permission in writing from Boca Research Inc Boca Research is not liable for any damage resulting from technical or editorial errors or omissions contained in this document The information in this manual is subject to change without notice Revisions to the product s in this manual may occur at any time without notice Trademarks All Boca Research products are trademarks of Boca Research Inc All other references to computer systems software and peripherals use trademarks owned by their respective manufacturers Publication Date October 1995 Printed in the U S A M1441EW PM5 Quick Start FOR THE EXTERNAL MODEL If you are familiar with personal computers and modems you may follow the diagram below to quickly connect the 14 4Kbps Modem to your system Make all necessary connections as shown below PHONE OPTIONAL ff TIAN AAA Iil il REAR OF 5 ADAPTER SYSTEM RS 232 ADAPTER CABLE TO SERIAL PORT 9 or 25 pin connector After you have installed your modem and made the necessary connections verify line connection by lifting the receiver of the telephone connected to the modem to check for a dial tone After hearing the tone hang up
10. contains the following items COMMUNICATIONS INSTALLATION agile SOFTWARE amp MANUAL MANUAL 14 4Kbps RJ 11 CABLE AC POWER ADAPTER RS 232 ADAPTER CABLE TO SERIAL PORT 9 or 25 pin connector If any items are missing or damaged contact the vendor from whom you purchased the modem for assistance 14 4Kbps BOCAMODEM 13 2 2 Operational Requirements The 14 4Kbps Modem has few requirements and is easy to use Be sure to read the information in the Appendix about connecting to the phone company In addition note the following e The communication settings are controlled by the software that manipulates the serial interface present in your system The external modem is connected to that interface e Operating the 14 4Kbps Modem with a computer requires communication software either as a stand alone product as included here or as part of an application program e The 14 4Kbps Modem takes a DB 25 25 pin male connector but computer equipment varies Check the serial ports at the rear of your system e The 14 4Kbps Modem uses an existing serial port on the back panel of your computer It can be a 9 pin or 25 pin D shell connector Use the dual end 25 pin or 9 pin of the cable supplied with your 14 4Kbps Modem to connect to your system s serial port Installation 14 A HS OH SD RD R Ea BOCAMODEM V32bis 20000000 FRONT VIEW BOCA 14 4Kbps MODEM 2 3 Connecting
11. it is the customer s equipment which is not working properly or if the problem is with the MODEM the user shall discontinue use until it is repaired In the event service is needed the user should contact the vendor from whom you purchased the MODEM Telephone Connection Requirements Except for telephone company provided ringers all connections to the telephone network shall be made through standard plugs and standard telephone company provided jacks or equivalent in such a manner as to allow for easy and immediate disconnection of the terminal equipment Standard jacks shall also be arranged that if the plug connected thereto is withdrawn no interference to the operation of the equipment at the customer s premises which remains connected to the telephone network shall occur by reason of such withdrawal Incidence of Harm Should terminal equipment or protective circuitry cause harm to the telephone network the telephone company shall where practical notify the customer that temporary discontinuance of service may be required however where prior notices are not practical the telephone company may temporarily discontinue service if such action is deemed reasonable in the circumstances In the case of such temporary discontinuance the telephone company shall promptly notify customers and will be given the right to bring a complaint to the FCC if they feel the disconnection is not warranted 14 4Kbps BOCAMODEM 45 Chang
12. more subject to distortion and noise but it is more capable of handling complex signals than are digital signals which can have only discrete values ARQ Automatic ReQuest for retransmission A type of communications link where the receiver asks the transmitter to re send a block of data when errors are detected ANSI American National Standards Institute A non profit private industry association which governs most USA standards setting agencies ASCII Acronym for American Standard Code for Information Interchange ASCII is an ANSI character set The standard ASCII character set consists of 128 decimal numbers 0 127 for letters of the alphabet numerals punctuation marks and common special characters The extended ASCII character set extends to 255 characters and contains special mathematical graphics and foreign characters asynchronous communications A method of transmission in which one character is sent one bit at a time also referred to as serial transmission B Bell standards Refers to the U S modulation protocol standards developed by the former AT amp T Bell Systems such as Bell 103 300bps transmission and Bell 212A 1200bps transmission 14 4Kbps BOCAMODEM 73 bit mapped registers An S register which contains multiple bit oriented values Example the value of S22 is the sum of the bit values which you select bits 0 1 speaker volume value 0 3 bits 2 3 speaker control value 0 3 bits 4 6 lim
13. power on your computer and load your communications software If you do not hear a dial tone see Section Four Troubleshooting 14 4Kbps BOCAMODEM Quick Start FOR THE INTERNAL MODEL If you are familiar with personal computers and modems you may follow the diagram below to quickly connect the 14 4Kbps Modem to your system Make all necessary connections as shown below SET JUMPERS AND INSTALL Wynn NA CARD IN 8 REAR OF SYSTEM After you have installed your modem and made the necessary connections verify line connection by lifting the receiver of the telephone connected to the modem to check for a dial tone After hearing the tone hang up power on your computer and load your communications software If you do not hear a dial tone see Section Four Troubleshooting Quick Start Contents Oulik Staricoi iis aia waste da eats 6 Section One Introduction esesesesesseeeserersseeseseseseeeeseseses 9 Section Two Installation external essesessseseseeese 12 2 1 The Contents of Your Package csseee 12 2 2 Operational Requirements scscsseseeeees 13 2 3 Connecting the Phone Line ssceeseeeees 14 2 4 Preparing the Modem ceessesseseeseeeees 15 2 5 Your Communications Software seses 18 2 6 Testing the Modem essesssesessssesesesesererseresesenseses 18 2 7 Testing the Connection cccccscsssssrseeseees 20 Section Three Installation internal s000 2
14. provides varying levels of technical assistance as summarized on the following page Boca BBS m A Standard Free p 407 241 1601 w Technical Support EEEN 407 241 8088 Automated AA Priority Service y Fax Retrieval AN 900 555 4900 System E 407 995 9456 PEPETA The Standard Free Technical On Line Support SUPIey Enumper as ror guik CompuServe GO BOCA answers to specific inquiries on Internet product features and technical i questions call 407 241 8088 M F email support boca org 8 am to 6 30 pm EST Direct on the World Wide Web access to technical support http www boca org representatives is provided ona limited basis Ly ESY If you require immediate attention or in depth help with the Es installation of the product please call our 900 priority support number for service This number gives you immediate access to senior level technicians The number is 900 555 4900 You will be charged 2 00 per minute The charges will appear on your next phone bill Damaged or Missing Items We use many world class quality assurance programs to ensure the product you purchased is of the highest caliber Sometimes however a component may be missing from the box or is damaged or corrupt in some way If this happens immediately return the entire package to your place of purchase so you may exchange it for a new one Your dealer should be able to provide you with an exchange far more quickly than by conta
15. the Phone Line An RJ 11 cable is provided with the purchase of your 14 4Kbps Modem This section contains information you will need before you connect the telephone line to the 14 4Kbps Modem and explains how to make the proper connections from the 14 4Kbps Modem to your telephone line Before you connect the telephone line to the 14 4Kbps Modem you should familiarize yourself if you haven t done so already with the information provided in the Appendix of this manual concerning FCC and telephone company requirements 14 4Kbps BOCAMODEM CONNECT TO WALL POWER SWITCH CONNECT TO PHONE MOUNT TRANSFORMER Coder dapin TOGGLE ON OFF CONNECT TO LINE CONNECT TO COMPUTER SERIAL PORT REAR VIEW BOCA 14 4Kbps MODEM 2 4 Preparing the Modem Follow these simple steps to connect the modem to your computer 1 Turn off your computer and all peripheral devices 2 Examine the back of the modem and review the attached interfaces as shown above 3 Check to make sure that the power switch is OFF DOWN Then plug the small end of the power adapter into the power jack on the back of the modem and plug the power adapter into a standard 120V AC wall socket Installation 16 Power Power connector witch AC adapter Phone jack Linejack RS 232 connector 4 Disconnect your present phone cord from the wall jack Plug the end of
16. the former Bell System also referred to as Bell standards The V Dot standards may be summarized as shown on the following page Command Protocol Reference 36 V 21 The CCITT standard for 300bps communications Domestic modems follow the Bell 103 standard but V 21 can accept international calls at 300bps V 22 The CCITT standard for 1200bps communications The domestic equivalent is the Bell 212A standard V 22bis The CCITT standard for 2400bps V 23 CCITT for 1200bps with a 75bps back channel This is mostly used in Europe and South America V 24 CCITT serial interface standard EIA RS232 D V 32 CCITT standard for 9600bps and 4800bps communications V 32bis CCITT standard for an extensive range of high speed modems operating at 14 400bps 12Kbps 9600bps 7200bps and 4800bps V 42 CCITT standard for detection and negotiation for LAPM Link Access Procedure for Modems error control V 42 will also support MNP levels 2 4 V 42bis An extension of V 42 specifying the data compression protocol for use with V 42 14 4Kbps BOCAMODEM 37 Appendix B Hardware Diagnostics The 14 4Kbps modem includes several tests which evaluate the operation of the modem its connection to the local DTE and the communications link between the local and remote modems Use of these tests requires setup of internal registers and may also require the use of two modems and a central office line simulator A thorough knowledge
17. the modem must be in data mode The modem does not transmit data when in command mode 74 communications protocol A set of procedures which controls how a data communications network operates D DCD Data Carrier Detect Indicates to the terminal device that the modem is receiving a valid carrier signal from a remote modem The carrier is a tone at a specified frequency DCE Data Communications Equipment The local and or remote modem A DCE is usually connected to a DTE DTE Data Terminal Equipment The computer or terminal either local yours or the remote the one you re communicating with A DTE is usually connected to a DCE DTR Data Terminal Ready The computer issues this signal to the attached modem indicating that it is ready to receive data data compression A technique that examines transmitted data for redundancy and replaces strings groups of characters with special codes which the receiving modem interprets and restores to its original form Transmission of compressed data results in shorter connect times and hence cost savings for connect charges Data compression is sometimes called source encoding data mode The modem is in data mode when a connection has been established with a remote modem and sends a CONNECT response confirming the connection User data may then be transmitted or received dial modifier Dial modifiers are special characters appended to the ATD command which instruct th
18. the phone cord that came with the modem into the wall jack and the other end into the RJ 11 jack at the rear of the modem marked LINE Wall phone jack RJ 11 cable Line jack 14 4Kbps BOCAMODEM 17 If you want to keep your telephone connected for conventional calls plug its cord into the other jack at the rear of the modem labeled PHONE Phone jack 5 Lastly connect the modem to the computer s serial port with the serial cable The modem is now ready to be tested and operated Turn your computer on now then switch ON the modem switch in the UP position Serial cable Installation 18 2 5 Install Your Communications Software Install your software now When complete go to the sections 2 6 Testing the Modem and 2 7 Testing the Connection Depending on the software you choose refer to the appropriate manual for start up and configuration 2 6 esting the Modem To verify that your modem is working properly follow these steps After making sure your communications software is loaded and started you are ready to test the modem s connection Note the status indicators as explained on the following page then continue with 2 7 14 4Kbps BOCAMODEM Indicator Definition Test Mode Auto Answer High speed Off Hook Send Data Received Data
19. to the original buyer of this BRI product that the hardware is free of defects in materials and workmanship for a period of five 5 years from the date of purchase from BRI or an authorized dealer the Warranty Period Should the product fail to be in working order at any time during the five year period BRI will at its option repair or replace this product as described below provided that in BRI s sole determination the part or product has not been abused misused repaired or modified All products will be serviced and returned via ground at no charge to customers DURING the first year of service All returns for limited warranty service require a Return Merchandise Authorization RMA All customers are required to demonstrate proof of purchase when requesting an RMA The period of warranty commences on the date of purchase A dated copy of the sales slip must be included with the returned merchandise Products which require Limited Warranty service during the warranty period should be delivered to BRI at the address in the Appendix Servicing Your Boca Product with proof of purchase copy of canceled check if any and the Return Merchandise Authorization RMA number provided by BRI Technical Support Refer to the Appendix in this manual Replacement parts or complete products will be furnished on an exchange basis only Replaced parts and or products become the property of BRI If the returned product is sent by mail the purc
20. 1 3 1 The Contents of Your Package sseseees 21 3 2 Communication Settings cscs 22 3 3 Installing the Modem cssssessessscesseeees 24 3 4 Connecting the Phone Line ou eseeseeee 25 Section Four Troubleshooting cccsesesseeeeees 28 Appendix A Command and Protocol Overview 33 Appendix B Hardware Diagnostics 37 Appendix C Technical Specifications 00 42 Appendix D Compliance Information 43 Appendix E Warranty Information 47 Appendix F Servicing Your Product csceeee 48 Command Reference cccscssocscsssecssssssecssoessecsoese 51 Basic AT Commands sseseseseseeseseseserseseseseressesesesenseees 51 Extended AT Commands sesesesereesesesesererseseseseeseses 55 MNP Operation ossis ccteesscahcavestutsavisbecsitacouseteesasie 57 AT Commands for V 42 V 42DiIS eessssseerssecesecese 61 S RegistetS sensassion niin 63 Result COGS siessiscisnscsshvsiessdsticnassstincesteanssoisseedoatisaes 68 GLOSSARY saninin seis sassespStesnseetoonsSeanevenve 72 14 4Kbps BOCAMODEM Section One Intoduction The 14 4Kbps modem internal or external version combines high speed data modem and fax capability on a single device It features V 32bis which provides high speed data transmission plus support for V 42bis error correction and MNP5 data compression Features e Data transmission rates of 14 4K 12K 9600 7200 4800 2400 1200 or 300bps e
21. 100 data compatibility with the Hayes AT command set e Programmable speaker volume control e Auto speed sensing e V 32bis V 42bis and MNP5 are supported as well as V 42 and MNP 2 4 error correction offering throughput speed of 57 600 bps e Group III send and receive fax capability with support for Class 1 and Class 2 fax commands e Supports 100 x 196 high resolution and 100 x 98 low resolution e Communication ports selectable as COM1 2 3 or 4 using interrupts 3 4 5 or 7 INTERNAL ONLY The Appendix features a discussion of standard and extended AT commands and S Registers as well as high level protocols Introduction 10 Installation Hints Your BOCAMODEM has been pre set at the factory for optimum performance All defaults are set to allow the modem to negotiate the best possible connection with highest quality data compression and error correction Because of these factory defaults the suggested initialization INIT string is ATZ If you want to custom configure your stored profiles we suggest that you always start out with an AT amp F amp C1 amp D2 amp R1 before customizing other commands This string will reset the modem to the factory defaults as well as reset some other basic settings If modem performance suffers after modifying settings send the INIT string above AT amp F amp R1 to the modem Notes on Performance To get optimum performance from your 14 4Kbps BOCAMODEM t
22. 14 4Kbps V 32bis MODEM The Ultimate in High Performance Product Code M144IW Internal Model M144EW External Model Before You Begin your Installaton The product you have purchased is designed to be easily installed into most IBM PC or compatible systems Many products have large easy to read legends to allow for the easy configuring of the product This installation manual contains detailed instructions Most included software has automatic installation programs to place the software correctly onto your computer However as all computers are configured differently you may be required to perform some basic DOS or Windows tasks If you are not familiar with basic DOS commands such as DIR CD or EDIT you should check your DOS manual or seek assistance from you local computer dealer to install the product How to get Technical Assistance The dealer that you purchased this product or your computer from is the first place you should go for technical assistance The dealer is usually the most qualified source of help and is most familiar with your system and how rt this product should be installed Many dealers have customer service and technical support programs with varying levels of support offered depending on your needs and computer knowledge Please contact the dealer first whenever a problem occurs If your Dealer Can t Assist you If you can t get assistance from your dealer the manufacturer
23. 2 Call our Technical Support Department between the hours of 8 00 a m and 6 30 p m EST Monday through Friday at 407 241 8088 A technician will be available to discuss the problem s you are experiencing If factory service is required you will be given a Return Merchandise Authorization RMA number Please place this number on the outside of the package when you return the item s for service and reference it on any correspondence included in the package Boca Research Inc will return any product which is not accompanied by an RMA number 3 Refer to the Warranty Statement if the product is covered under the five year Boca Research Inc Limited Warranty 4 Certain parts will not be covered under the Boca Research Inc Limited Warranty Dealer installed parts are warranted by the dealer Parts which you have installed yourself are covered only by the supplier s warranties In these cases Boca Research Inc can identify which parts are defective but will not replace such parts until specific written authorization is received from you The cost of parts and labor involved in making such repairs will be billed to you C O D 5 When sending the 14 4Kbps Modem to Boca Research Inc for repairs please be sure to include Servicing Your Boca Product 50 e the 14 4Kbps modem BOARD or CASE ONLY e a copy of the original invoice e your return street address for UPS purposes e phone number e the RMA number mentioned
24. Bit Mapped Bit mapped registers S29 Reserved S30 0 255 seconds 0 Inactivity Timer S31 Bit Mapped Options S32 0 255 ASCII 17 XON Character S33 0 255 ASCII 19 XOFF Character 634 35 Reserved S36 Bit Mapped Options S37 0 21 0 Modem to Modem speed NOTE This is interlinked with the ATFn command If an invalid number is entered the number is accepted into the register but S37 will react as though the default value has been entered Bits 0 4 0 Attempt auto mode connection ATF0 DEFAULT 1 3 Attempt to connect at 300bps 4 Reserved 5 Attempt to connect at 1200bps ATF1 6 Attempt to connect at 2400bps ATF4 7 Attempt to connect at V 23 ATF3 8 Attempt to connect at 4800bps ATF6 9 Attempt to connect at 9600bps ATF8 10 Attempt to connect at 12Kbps ATF9 11 Attempt to connect at 14 4Kbps ATF10 12 Attempt to connect at 7200bps ATF7 66 Reg Range Units Default Definition S38 0 255 seconds 20 Delay Before Forced Hangup S39 Bit Mapped Bit Mapped Registers S40 Bit Mapped Bit Mapped Registers S41 Bit Mapped Bit Mapped Registers S42 45 Reserved S46 136 or 138 138 Data Compression Control NOTE 136 enables error correction with no compression 138 enables error correction WITH compression S48 0 7 128 7 V 42 Negotiation NOTE 0 disables negotiation and proceeds with LAPM 7 enables negotiation and 128 disables negotiation and proceeds with fallback action specified in S36 The de
25. O on line state Same as data mode To transmit or receive data the modem must be in the on line state When placing a call the modem is put on line with the dial command P PBX Private Branch Exchange A telephone switch at a customer site pulse dialing Also referred to as rotary dialing i e dialing with the older style rotary dial wheel The dial modifier ATP sets the modem to pulse dialing which is the default method as opposed to tone dialing push button touch tone which is enabled with ATT All telephone exchanges will accept older style pulse dialing and most exchanges will accept modern tone dialing Tone dialing is faster and more reliable since mechanical relays and their inherent failure mechanisms are avoided R result code A response sent by the modem after executing a command The response reports the modem s status or the progress of a call and can take the form of either digits numeric or words verbose Issuing a V1 command enables word responses A VO V zero command enables numeric responses The Q1 command disables their use entirely Example OK word or 0 numeric indicates that the modem successfully executed a command retrain An adjustment process performed when one of the modems detects signal distortion or line noise which threaten data integrity RTS CTS Request to Send Clear to Send RTS and CTS are two control signal lines between the modem DCE and terminal DTE which allow t
26. Registers regulate the operation of the modem and the function of some commands in the AT command set 14 4Kbps BOCAMODEM 35 Example S Register 7 defines the length of the time the modem will wait for a connection If the value of S Register is 50 the modem will wait 50 seconds for a connection after dialing If a connection is not made within 50 seconds the modem will hang up Data Communication Protocols This can be more than a little confusing These protocols represent various domestic and international standards which enhance modem performance and reliability The protocols are activated and controlled by a variety of extended AT commands and S Registers MNP stands for Microcom Networking Protocol and is a protocol developed by Microcom for full duplex error free communications This protocol detects and corrects errors which can result from telephone line noise and other signal distortions There are several classes of MNP operation also referred to as service classes Class 5 maximizes data transfer rate and provides compression which can significantly increase data throughput The V Dot standards are more numerous but have a single origin the International Telecommunications Union Telecommunications Standards Sector formerly the Consulting Committee for International and Telephone and Telegraph or CCITT Some of the lower level standards such as V 21 and V 22 have domestic equivalents as developed by
27. able to select this non standard interrupt as well 1 Run COMCHECK to determine how many serial ports are already installed in your system Insert any diskette into your floppy drive and type A COMCHECK or B COMCHECK Follow all on screen instructions 2 Remove the 14 4Kbps Modem from its anti static bag handling it by its edges and metal retaining bracket Be careful not to touch the edge connector or any components on the modem card If necessary change the jumpers on the modem for the next available port based on directions from COMCHECK See the illustration on the next page for assistance in jumper settings 14 4Kbps BOCAMODEM 23 Your modem has been given a default setting of COM3 IRQ5 Frequently in today s systems COM1 and COM2 have already been assigned to other devices Make sure you run the COMCHECK program which came with the modem to avoid conflicts with other devices already in your system Insert any diskette into your floppy drive and type A COMCHECK or B COMCHECK O q c m T 2 3 4 3 4 5 Lf WINDOWS 3 1 USERS When an internal modem uses non standard setting such as COM3 IRQ5 you must go into Windows Control Panel and change the address settings Select Ports then Settings then Advanced Make sure COM3 is set to a Base I O POrt Address of 03E8 and the IRQ is set to IRQ5 Installation 24 3 3 Installing the 14 4Kbps Modem This subs
28. above Package the product securely in a container equivalent to the original packaging and insure the package to protect against loss or damage during transit Shipping charges must be prepaid C O D shipments will not be accepted Please use the address below for all correspondence Boca Research Inc RMA Department RMA 1601 Clint Moore Road Boca Raton FL 33487 2841 6 If the repairs performed on your modem were covered by the warranty Boca Research Inc will return it prepaid via UPS 14 4Kbps BOCAMODEM 51 Command Reference BASIC AT COMMANDS default values are highlighted Command Description AT Attention characters ATA Answer command AT Re Execute last command Tansmit Canier Signal ATCO Transmit carrier signal off default ATC1 Transmit carrier signal on Dial Modifiers Dial Options Description ATD none Dial ATD followed by phone number ATDL none Re dial ATDP none Pulse rotary dial 10 pulses per second ATDT none Touch tone dial DTMF ATDW 1 255sec Wait for dial tone Default is 50 seconds ATD 0 255sec Pause Default is 2 seconds ATD none Wait for quiet answer ATD none Initiate hook flash ATD none Return to command state after dialing ATD none Disable calling tone ATDS 0 3 none Dial stored number 52 Command Description Command Character Echo ATEO Disables echoing of the commands to the screen ATE1 Enables echoing of the commands to the screen
29. also different from the usual data mode modulation flow control Compensates for the difference between the rate at which data reaches a device and the rate at which the device processes and transmits This is controlled by the extended AT command amp K The two common types of flow control are RTS CTS signaling a hardware based method employing an electrical signal and XON XOFF a software based method using standard ASCII control characters to pause or resume transmission full duplex Two way simultaneous transmission between modems which may occur via a four wire circuit on a leased line or with a two wire connection when the frequency bandwidth is divided into two distinct channels or when echo cancellation is employed e g Bell 103 212 and V 22 use frequency division while V 32 uses echo cancellation 76 G guard tone Guard tones are used in the United Kingdom and other countries This requires that the modem transmit an 1800 Hz tone after it sends an answer tone The guard tone is controlled by the amp G command Guard tones are not used in the U S A H half duplex Signal flow in both directions but only one way at a time with each modem alternating between send and receive Hayes compatible Hayes Microcomputer Products Inc developed the AT command set which has become a de facto industry standard Hayes commands are always initiated with an AT attention code prefix hook flash The dial modifier
30. and noise are determined by the unit of measurement dBm decibel referenced to one milliwatt To arrive at a signal noise ratio the noise level is subtracted from signal level in dBm Report Line Signal Quality Returns a high order byte of the calculated EQM eye quality monitor This can range from 0 to 255 When the value is 8 or greater the modem will automatically retrain if enabled by the AT E1 command The value for a normal connection ranges from 0 to 2 and approaches 8 for a progressively poorer connection Returns an OK result code 000 to 007 no retrain 008 to 255 retrain performed if enabled by E1 14 4Kbps BOCAMODEM 63 S Registers This section defines the purpose of the modem registers and sequentially lists the registers and describes their functions These registers affect various operating characteristics and allow you to obtain information about the modem as well as test the modem Each register has a factory set value which you can read or change to fit your needs Reading a Register Value To read the current value of a register type AT Sn ENTER where n is a register number AT Sn Sn ENTER from the command mode To read the register values of SO and S1 type AT S0 S1 ENTER The modem will display the first register value a carriage return the next register value a carriage return and OK or 0 Changing a Register Value To change a register value use the Sn comma
31. bps 2400 CONNECT 11 Modem established a connection at 4800 4800 bps CONNECT 12 Connection made at 9600 bps 9600 14 4Kbps BOCAMODEM 69 Result Numeric Code Value Description FCERROR F4 Fax carrier error CONNECT 13 Connected as data modem during an 7200 answer CONNECT 14 Connection made at 12000 bps 12000 CONNECT 15 Connection made at 14400 bps 14400 CONNECT 16 Connection made at 19200 bps 19200 CONNECT 17 Connection made at 38400 bps 38400 CONNECT 18 Connection made at 57600 bps 57600 CONNECT 19 Connection made at 115 200 bps 115200 CONNECT 22 Modem returns this result code when upon 75TX 1200RX establishing a V 23 originate connection when the modem has been instructed to report the DTE speed to the DTE upon connecting CONNECT 23 Modem returns this result code when upon 1200RX 75RX establishing a V 23 answer connection when the modem has been instructed to report the DTE speed to the DTE upon connecting 70 Result Code CARRIER 300 CARRIER 1200 75 CARRIER 75 1200 CARRIER 1200 CARRIER 2400 CARRIER 4800 CARRIER 7200 CARRIER 9600 CARRIER 12000 CARRIER 14000 CARRIER 16800 CARRIER 19200 40 44 45 46 47 48 49 50 51 52 53 54 Numeric Value Description Carrier rate of 300 bps V 23 backward channel has been detected V 23 forward channel has been detected Carrier rate of 1200 bp
32. cting us directly If for some reason you are unable to return the product directly to its place of purchase refer to the Servicing Your Product and Warranty sections in this manual for instructions 14 4Kbps BOCAMODEM gt gt Using the Boca Research 14 4Kbps MODEM manual This manual provides installation and operating instructions for the Boca 14 4Kbps MODEM The manual assumes the user has basic computer skills and is familiar with personal computers Its primary purpose is to provide physical installation instructions and basic troubleshooting All sections should be read carefully before beginning any installation procedures Our customer support experience has shown that many costly and time consuming calls to our technical support staff can be avoided with closer attention to the information provided here In addition to following the instructions provided in this manual you will also need to consult the documentation supplied with your communications software IMPORTANT NOTICE FCC Requirements The Federal Communications Commission FCC restricts the way you can use modems Read the FCC compliance statement found in Appendix D of this manual Connecting the Modem You can connect the modem to various types of telephone jacks The acceptable phone jack types are RJ 11 RJ 12 RJ 13 RJ 41S and RJ 45S Most homes and businesses use one of these jacks If your phone system does not have a modular jack you
33. d test time in seconds Example ATS18 10 provides for a 10 second test 5 To begin type AT amp T8 ENTER The modem responds with OK 6 After the number of seconds specified in 518 the modem should respond with 000 meaning 0 errors were found during the self test 14 4Kbps BOCAMODEM 39 Remote Digital Loopback fst 1 Set the DTE speed from 1200 to 14 400 Bits per second If the speed is less than 1200 or greater than 14 400 the test WILL NOT operate and a result code of ERROR will be generated if the test is attempted The baud rate is also limited to the highest baud rate supported by the telephone line 14 400bps modulation is possible if the telephone line is without distortion and noise free If the telephone line has problems bring the baud rate down to 9600 or 2400 If the line quality is too poor use a line simulator to run this test Issue an AT amp Q0 command to the local modem This sets the modem to the direct mode Issue an AT amp Q0 command to the remote modem also setting it to the direct mode Issue an AT amp T4 to the remote modem This instructs the remote modem to grant a request for a remote digital loop back test Issue an ATSO 1 to the remote modem which allows it to auto answer the incoming call Set the timer register S18 of the local modem for desired test time in seconds Example ATS18 10 provides for a 10 second test Hardware Diagnostic
34. e modem how to place a call digital signal A discrete signal which can only take on one of several usually only two discrete levels in contrast to analog signals which can take a continuous range of levels 14 4Kbps BOCAMODEM 75 E error detection and correction The transmitting modem attaches a special pattern called a frame check sequence calculated according to a prescribed algorithm from user defined data to the end of a block of data The receiving modem performs the same algorithm and compares it to the one with the transmitted data If these match then the block of data has been received correctly If not the block of data is re transmitted until no errors are detected escape sequence Also referred to as the escape command This special command is entered as three plus symbols and places the modem in command mode and interrupts user data transmission but does not terminate the data connection This allows the entering of commands while the connection is maintained extended AT command Extended commands were developed to provide greater functionality and control over modem operations than is available from the basic AT command set F fax mode The modem is in fax mode when through use of fax communications software it can send and receive faxes print and display fax files convert files to fax files and set certain fax related features Note the modulation protocol used by the modem in fax mode is
35. ection provides step by step instructions for installing your internal 14 4Kbps Modem 1 Power off your computer and disconnect any attached devices and power cords 2 Remove the computer s cover and locate an available 8 or 16 bit expansion slot Remove that expansion slot cover and save the screw 3 Carefully insert the modem into the expansion slot applying pressure to the upper metal edge until it snaps into place 4 Secure the modem card into place by aligning its metal retaining bracket with the hole in the top edge of the system s rear panel Fasten the metal bracket with the screw removed earlier from the expansion slot cover 5 Replace the system cover 14 4Kbps BOCAMODEM 25 3 4 Connecting the Phone Line An RJ 11 cable is provided with the purchase of your modem This sub section contains information you will need before you connect the telephone line to the modem It also explains how to make the proper connections from the modem to your telephone line Before you connect the telephone line to the modem you should familiarize yourself if you haven t done so already with the information provided in the Appendix of this manual concerning FCC and telephone company regulatory requirements Connecting the Phone Line to the Modem 1 Make sure that your computer is still powered down Plug either end of the RJ 11 cable provided with the modem into the LINE jack on the modem board LINE jack
36. es in Telephone Company Equipment or Facilities The telephone company may make changes in its communications facilities equipment operations or procedures where such action is reasonably required and proper in its business Should any such changes render the customer s terminal equipment incompatible with the telephone company facilities the customer shall be given adequate notice to make modifications to maintain uninterrupted service General The FCC prohibits customer provided terminal equipment be connected to party lines or to be used in conjunction with coin telephone service Installation The MODEM is equipped with a USOC RJ 11 standard miniature modular jack and is designed to plug directly into a modular jack DOC Compliance Statement Canada The Canadian Department of Communications label identifies certified equipment This certification means that the equipment meets certain telecommunications network protective operational and safety requirements The Department does not guarantee the equipment will operate to the user s satisfaction Before installing this equipment users should ensure that it is permissible to be connected to the facilities of the local telecommunications company The equipment must also be installed using an acceptable method of connection In some cases the company s inside wiring associated with a single line individual service may be extended by means of a certified connector assembly te
37. fault for S36 is to attempt an MNP connection S49 81 Reserved S82 3 7 128 128 Break Handling Option S86 N A Connection Failure Cause Code S91 0 to 15 dBm 10 PSTN Transmit Level S92 0 to 15 dBm 10 Fax Transmit Level 14 4Kbps BOCAMODEM 67 Reg Range Units Default Definition S95 Bit Mapped NA Extended Results Codes NOTE Bit values are defined as follows for S95 0 CONNECT CODE indicates DCE speed instead of DTE speed 1 Append ARQ automatic repeat request to verbose CONNECT XXXX result code if protocol is other than none 2 Enable CARRIER XXXX result code 3 Enable PROTOCOL XXXX result code 5 Enable COMPRESSION result code Bits 4 6 and 7 are reserved 68 Result Codes Result Numeric Code Value Description OK 0 Modem successfully executed a command line CONNECT 1 Connection made at 300 bps RING 2 Modem detected an incoming call NO CARRIER 3 Modem lost or could not detect a remote carrier signal within the Register S7 time ERROR 4 Modem found an error in the command line CONNECT 5 Modem established a connection 1200 at 1200 1200bps NO 6 Modem did not detect a dial tone within 5 DIALTONE seconds after going off hook BUSY 7 Modem detected a busy signal NO ANSWER 8 Five seconds of silence was not detected when using the command in the dial command line CONNECT 9 Modem established a connection at 600 bps 0600 CONNECT 10 Modem established a connection at 2400
38. g loopback e Automatic power on self test Dimensions EXTERNAL 7 1 4 x 5 3 8 x 1 1 4 INTERNAL 4 1 4 x 4 1 8 Operating Temperature Requirements Dry Bulb Temperature 10 40 C 50 104 F Relative Humidity 8 80 Storage 1 60 C 33 8 140 F 14 4Kbps BOCAMODEM 43 Appendix D Compliance Infomation FCC Statement This device complies with part 15 of the 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 operation THIS UNIT COMPLIES WITH FCC PART 68 AS OF DATE OF MANUFACTURE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of FCC rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Re o
39. haser agrees to prepay shipping charges insure the product or assume the risk of loss or damage which may occur in transit and to use a shipping container equivalent to the original packaging BRI does not make any warranties in respect to the product either expressed or implied including no implied warranties of merchantability or fitness for a particular purpose except as expressly provided in this agreement If any labor repair or parts replacement is required because of accident negligence misuse theft vandalism fire water or other peril or because of conditions outside of specifications including but not limited to electrical power temperature humidity or dust or by moving repair relocation or alteration not performed by BRI or by any other cause other than normal use the warranty and maintenance obligations provided herein shall not apply BRI SHALL NOT BE LIABLE FOR ANY SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES OR FOR LOSS DAMAGE OR EXPENSE DIRECTLY OR INDIRECTLY ARISING FROM CUSTOMER S USE OF OR INABILITY TO USE THE EQUIPMENT EITHER SEPARATELY OR IN COMBINATION WITH OTHER EQUIPMENT OR FOR PERSONAL INJURY OR LOSS OR DESTRUCTION OF OTHER PROPERTY OR FROM ANY OTHER CAUSE This warranty shall not be applicable to the extent that any provision of this warranty is prohibited by any Federal state or municipal law which cannot be preempted This warranty gives you specific legal rights and you may also have other rig
40. he DTE during NORMAL or MNP mode AT KO 2 4 modem enters command mode without sending a break to the remote modem AT K1 modem clears the terminal and modem buffers and sends a break to the remote modem AT K3 modem does not clear the buffers but sends a break to the remote modem AT K5 modem sends a break to the remote modem in sequence with any transmitted data DEFAULT 2 When a break is received from the remote modem during NORMAL mode AT KO 1 modem clears the terminal and modem buffers and sends a break to the local DTE AT K2 3 modem does not clear the buffers but sends a break to the local DTE AT K4 5 modem sends a break in sequence with any data being buffered DEFAULT 3 When a break is received from the DTE during DIRECT MODE mode AT KO0 1 3 modem sends a break to the remote modem and enters command mode AT K2 4 5 modem sends a break to the remote modem DEFAULT 60 MNP Block Transfer Control Determines whether or not the modem will use block or stream mode for MNP link AT LO uses stream mode for MNP link connections DEFAULT AT LI1 uses block mode for MNP connections Enor Correction Operating Mode Selects the operating mode the modem uses while connected AT NO NORMAL speed buffering mode AT NI1 DIRECT pass through mode AT N2 RELIABLE LINK mode Specifies error correction for the modem to modem connection AT N3 AUTO RELIABLE LINK mode Attempts error correction connectio
41. he phone line quality over which you are transmitting and receiving must be reliable and relatively free of noise 14 4Kbps BOCAMODEM 11 HOW THIS MANUAL IS ORGANIZED Quick Start If you are familiar with modem operations this abbreviated procedure provides a short cut for connecting the Boca 14 4Kbps Modem Otherwise read Section Two or Three before continuing Section One Introduction An overview of the features of the Boca 14 4Kbps Modem Section Two and Three Installation These sections provide communication settings internal only a diagram of the 14 4Kbps Modem board or external unit physical installation instructions including how to connect the phone line and procedures for testing the connection Section Four Troubleshooting This provides a description of the most common problems which may be encountered during installation and operation along with possible solutions Appendices These include e technical specifications e FCC and DOC Canada compliance information e warranty policies e how to service your Boca product if necessary e a brief survey of standard and extended AT command sets S registers and high level protocols e hardware diagnostics e glossary Introduction 12 Section Two Installation Extemal Model This section explains how to connect the Boca Research 14 4Kbps Modem to your computer 2 1 The Contents of Your Package Verify that your modem package
42. he terminal to control the flow of information See also flow control 14 4Kbps BOCAMODEM 79 S sleep inactivity timer Determines the length of time the modem operates in normal mode with no activity before entering low power sleep mode split speed direction Determines which direction transmit or receive has the 75bps channel and which has the 1200bps channel but is only active if the W command is set to 1 Used with V 23 modulation only standard AT command The basic AT command set originated by Hayes Microcomputer Products Inc synchronous clock source Applies to synchronous modem operations and is set with the amp X command The command specifies the clocking source referred to as the transmit signal element timing This can be controlled by either the modem or the terminal synchronous communications A method of transmission in which data bits are sent continuously at the same rate under the control of a fixed frequency clock signal T touch tone dialing Push button tone dialing as used on contemporary phone sets The dial modifier ATT sets the modem to tone mode Tone dialing is faster and more reliable than older style pulse dialing X XON XOFF XON and XOFF are the names of two different control characters See also flow control Acknowledgments The Complete Modem Reference Gilbert Held John Wiley amp Sons Inc Upgrading and Repairing PCs Second Edition Que Corporation 1992
43. hts which vary from state to state Warranty Information 48 Appendix F Servicing Your Boca Product If your 14 4Kbps Modem requires service first contact the authorized dealer from whom you purchased the modem If the dealer is unable to assist you and you must contact Boca Research Inc please follow the instructions below Our electronic BBS is available 24 hours a day at 407 241 1601 and will support data transmission speeds up to 28 8Kbps with settings of N 8 1 Once your modem is functional the BBS may be helpful especially during off hours if you have a question about product settings or if you wish to download special software or utilities If the Troubleshooting section section Four did not resolve your problem you may call our technical support staff for assistance If you haven t referred to the Troubleshooting section do so now NOTE CALLING TECHNICAL SUPPORT WITHOUT COMPLETE AND ACCURATE INFORMATION CONCERNING YOUR PROBLEM MAY BE BOTH TIME CONSUMING AND FRUSTRATING FOR YOU 1 When calling Boca Research Technical Support have the following information available e Board or external unit name and part number e Computer manufacturer e Computer Model e Peripherals in system e Operating system and version 14 4Kbps BOCAMODEM 49 If you suspect a problem with a specific program or software package make note of the name version or release number and manufacturer of the software
44. ie e Re try the connection by dialing the number several times You may be experiencing line interference e An incoming call oe have broken 1 the connection if a call waiting feature was enabled Disable ii waiting and try again 14 4Kbps BOCAMODEM 31 SYMPTOM POSSIBLE REMEDY I am having trouble Init strings are primarily personal getting my init string preferences Use the most basic to work one that can get the job done See Installation Hints page 8 My 2400bps or other Review earlier suggestions modem worked with my system but the Boca modem does not I need the modem to Send an AT amp Q6N0S37 n where connect at a certain n 9 for 9600 6 for 2400 5 for speed 1200 1 for 300bps Troubleshooting SYMPTOM POSSIBLE REMEDY Connection Errors Try connecting at a lower speed e g 9600 or 2400bps e Turn off error correction compression with an AT amp Q6 CO0 command e Noisy poor line conditions may prohibit connection Have your phone company test your lines e Verify that the modem at the other end is up to date and compliant with current CCITT and Bell standards Problem e Some on line services require that Connecting to On your modem be configured to run line subscription with error correction and data services compression turned OFF The easiest way to accomplish this is by using the command AT amp Q6 and setting the communication software to the cor
45. ile 0 AT amp Y1 Selects user profile 1 Stored phone number AT amp Z0 Stores a 36 digit dial string AT amp Z1 Stores a 36 digit dial string AT amp Z2 Stores a 36 digit dial string AT amp Z3 Stores a 36 digit dial string 58 MNP Operation The 14 4Kbps Modem supports all of the preceding classes The following AT Commands apply to the MNP protocol Default values are highlighted Maximum MNP Block Size Use this command to transmit smaller blocks of data in a reliable data link connection AT AO set maximum block size to 64 characters AT A1 set maximum block size to 128 characters DEFAULT AT A2 set maximum block size to 192 characters AT A3 set maximum block size to 256 characters TWansmit Break When this command is entered during a non MNP connection a break signal is sent to the remote modem The length of the break is 100 times the n parameter 1 9 in milliseconds The default is 3 AT B3 DEFAULT Modem to Modem How Control Enables or disables modem to modem flow control during a normal mode connection This command is ignored when error correction is selected AT GO Disables flow control KON XOFF DEFAULT AT GI1 Enables flow control KON XOFF 14 4Kbps BOCAMODEM 59 Break Control Determines the modem response when a BREAK is received from the DTE or the remote modem The values of the parameters vary based on the three following conditions 1 When a break is received from t
46. it result codes value 0 4 6 7 blind dialing An automated process whereby the modem goes off hook and dials without waiting for a dial tone This is prohibited in many countries block transfer control Determines whether or not the modem uses block or stream mode during an MNP connection In stream mode MNP sends data frames in varying length Block mode sends fixed data frames of 256 characters and is selected with the MNP based L command bps bits per second break handling Determines how the modem responds when a BREAK signal is received from either the DTE Data Terminal Equipment or computer terminal or the remote modem This is controlled by the MNP based AT extended command K A break signal is represented on the communications line by a steady space signal for a significant length of time Break signals may be activated from the keyboard by pressing the BREAK key or the control CTRL and C keys C CCITT Consultative Committee for International Telephone and Telegraph This advisory organization is part of the ITU International Telecommunication Union which is an agency of the United Nations Organization recently renamed International Telecommunications Union Telecommunications Standards Sector ITU TSS command mode The modem is in command mode when it is turned on or reset when it loses its connection to a remote modem when it is in on line mode or when escape characters are typed To transmit data
47. l and analog circuits of the modem 3 the remote digital loopback checks the operating condition of the line and remote modem 4 the remote analog loopback tests the line to the remote modem M MNP Microcom Networking Protocol A series of data communications protocols developed by Microcom for full duplex error free communications make break ratio The amp P command controls the ratio of the off hook make to on hook break interval used by the modem when it pulse dials amp P0 selects a 39 61 make break ratio for use in the U S amp P1 selects a 33 67 make break ratio for use in the United Kingdom and Hong Kong The amp P command is NOT allowed in some countries modulation handshake Also referred to as Automode Enable and is controlled by the ATN command This determines whether or not the modem must connect at a particular speed or allow connection at any speed supported by both modems N negotiation fallback Controlled by S Register 36 as part of the V 42 protocol Setting this register indicates what action to take when a desired connection cannot be made e g hang up direct mode connect normal mode connect 78 non volatile RAM Also NVRAM Random access memory whose data is retained when power is turned off This is especially useful for modems to store user defined default configuration settings and frequently used telephone numbers This information would be loaded into modem RAM at power up
48. l progress not reported Connect xxxx message reports DCE speed Extended result codes ATXO Disables monitoring of busy tones unless forced otherwise by country requirements sends only OK CONNECT RING NO CARRIER ERROR and NO ANSWER result codes ATX1 Disables monitoring of busy tones unless forced otherwise by country requirements sends only OK CONNECT RING NO CARRIER ERROR NO ANSWER and CONNECT XXXX result codes 54 Command Description ATX2 ATX3 ATX4 Disables monitoring of busy tones unless forced otherwise by country requirements sends only OK CONNECT RING NO CARRIER ERROR DIAL TONE NO ANSWER and CONNECT XXXX result codes Enables monitoring of busy tones sends only OK CONNECT RING NO CARRIER ERROR NO DIALTONE NO ANSWER and CONNECT XXXX Enables monitoring of busy tones and sends all messages default Contol long space disconnect ATYO ATY1 Disables long space disconnect default Enables long space connect Soft reset and restore profile ATZO ATZ1 Restores stored profile 0 default Restores stored profile 1 Escape characters The escape characters are known as They will switch from on line mode to command mode while preserving the connection with the on line modem 14 4Kbps BOCAMODEM 55 Extended AT Commands Command Description Data canier detect DCD signal AT amp CO Forces DCD signal to be on at all times AT amp C1 DCD on indicates p
49. lephone extension cord The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations Compliance Information 46 Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunction may give the telecommunications company cause to request the user to disconnect the equipment Users should ensure for their own protection that the electrical ground connections of the power utility telephone lines and internal metallic water pipe system if present are connected together This precaution may be particularly important in rural areas CAUTION Users should not attempt to make such connections themselves but should contact the appropriate electric inspection authority or electrician as appropriate The Load Number LN assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop which is used by the device to prevent 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 does not exceed 100 The Load number appears on the underside of the 14 4Kbps Modem 14 4Kbps BOCAMODEM 47 Appendix E Wananty Information Limited Warranty Boca Research Inc BRI warrants
50. n but will fall back to normal mode if unable to establish an MNP link AT N4 LAPM error correction mode AT N5 MNP error correction mode Split Soeed Operation Supports a split speed DCE DTE interface for applications which require a transmit speed of 75bps and receive speed of 1200bps at the DTE interface AT WO disables DEFAULT AT W1 enables 14 4Kbps BOCAMODEM 61 ATCommands for V 42 V 42bis The following AT commands apply to the V 42 V 42bis protocol Compression Control Determines whether or not modem will use data compression AT CO AT C1 AT C2 AT C3 disables data compression enables MNP5 data compression negotiation enables V42bis data compression enables both V 42bis and MNP5 data compression DEFAULT Auto retrain Determines whether or not the modem automatically monitors the line quality and requests a retrain when necessary AT EO AT E1 AT E2 disables line quality monitor auto retrain DEFAULT enables line quality monitor auto retrain enables line quality monitor auto retrain and auto fall back forward Split Speed Direction Select Determines which direction transmit or receive has the 75bps channel and which has the 7500bps channel Valid only if the W1 command has been entered AT F1 AT F2 selects 75Tx 1200Rx selects 1200Tx 75Rx DEFAULT 62 Report Received Signal Level AT L 009 9 dBm 010 10dBm etc all the way to 043 43 dBm Line signal
51. nd ATSn v where n is a register number and v is the new value you want to assign to the register Type AT S0 3 ENTER to have the modem automatically answer on the third ring 64 The following table lists the modem s registers and their functions Reg Range Units Default Definition SO 0 255 rings 2 Auto answer S1 0 255 rings 0 Count incoming rings S2 0 255 rings 43 Escape character value S3 0 127 ASCII 13 Carriage return character S4 0 127 ASCII 10 Line feed character S5 0 32 ASCII 8 Backspace character S6 2 255 seconds 2 Wait time for Blind Dialing S7 1 255 seconds 50 Wait for carrier after dial S8 0 255 seconds 2 Pause time for dial delay S9 1 255 seconds 6 10 Carrier detect S10 1 255 seconds 14 1 4 Lost Carrier to Hang Up Delay S11 Reserved S12 0 255 seconds 50 1 Escape code guard time in one fiftieth second increments S13 Reserved S14 Bit Mapped AA hex Bit mapped registers 15 Reserved S16 Bit Mapped 80 hex Modem test options S17 Reserved S18 0 255 seconds 0 Test timer S19 Reserved S20 Reserved S21 Bit Mapped 00 hex Bit mapped registers S22 Bit Mapped 75 hex Bit mapped registers S23 Bit Mapped 07 hex Bit mapped registers 14 4Kbps BOCAMODEM 65 Reg Range Units Default Definition S24 0 255 seconds 0 Sleep Inactivity Timer 25 0 255 seconds 5 Asynchronous DTR Delay S26 0 255 seconds 1 Delay Interval S27 Bit Mapped 9 hex Bit mapped registers S28
52. of modem operation and registers is needed for their use and should not be undertaken lightly Local Analog Loopback test This test verifies the path between the local modem and the PC Set the DTE speed from 1200 to 14 400 bits per second If the speed is less than 1200 or greater than 14 400 the test WILL NOT operate and a result code of ERROR will be generated if any tests are attempted 2 Make sure the modem is in command mode no connection made 3 Issue an AT amp Q0 command to the modem This sets the modem to the direct mode 4 Set the timer register S18 for desired test time in seconds Example ATS18 10 provides for a 10 second test Hardware Diagnostics 38 5 To begin the test type AT amp T1 ENTER The modem should respond with a CONNECT message 6 After the number of seconds specified in 518 the modem will terminate the test and respond with OK Local Analog Loopback Test with Self Test This test verifies the integrity of the local modem s transmit and receive circuits 1 Set the DTE speed from 1200 to 14 400 bits per second If the speed is less than 1200 or greater than 14 400 the test WILL NOT operate and a result code of ERROR will be generated if any of the tests are attempted 2 Make sure the modem is in command mode no connection made 3 Issue an AT amp Q0 command to the modem This sets the modem to the direct mode 4 Set timer register S18 for desire
53. ow ready for use Continue now with your communications software and documentation Installation 28 Section Four Troubleshooting This section lists common problems that may be encountered and their possible solutions SYMPTOM POSSIBLE REMEDY No dial tone e Verify that you have cables plugged in correctly as instructed in Section Two or Three e Connect a telephone set directly to the wall jack and check for a dial tone If no dial tone is heard the telephone line is not working Contact the telephone company Modem will not e Check the connections between the connect to another modem and the computer and the modem modem and the telephone line e Make sure the telephone jack is operational as described above e The telephone line may be in use at a different extension e Perhaps the number you have called does not reach a modem or the remote modem may not be set up to respond No response when There may be a conflicting port you type in AT address Re configure the modem s commands COM port address INTERNAL MODEL ONLY 14 4Kbps BOCAMODEM SYMPTOM No response when you type in AT commands contd AT commands not visible After data connection is established data is displayed as garbled characters POSSIBLE REMEDY e Verify that the communication software is set to the same communications port where your modem is attached e g COM1 COM2 Check IRQ settings in your sof
54. reak Ratio 56 Microcom Networking Protocol 35 MNP 35 58 60 Mode Responses 53 Modem Data Rate 42 Modem Modulation Protocols 42 N Non standard IRQs 23 O On Line State 53 Operational Requirements external 13 P Pause 51 phone jack types 5 Physical and Electrical Characteristics 42 Preparing the Modem external 15 Pulse rotary dial 51 Q Quick Start R Remote Digital Loopback Test 38 39 Remote Digital Loopback Test with Self test 40 41 Restore Profile 54 Result Code Format 53 Return Merchandise Authorization 49 Return to command state 51 Ringer equivalence number 44 RJ 11 cable 14 25 6 7 82 S Ww S Registers 34 35 63 67 k Servicing Your Boca Wait for dial tone 51 Product 48 50 Wait for quiet answer 51 speaker volume control 9 52 Warranty Information 47 Store phone number 51 T Technical Specifications 42 Telephone Company Requirements 44 Test and Diagnostics 57 Testing the Connection internal 27 Testing the Connection external 20 Touch Tone DTMF dialing 51 Transmit Carrier Signal 51 Troubleshooting 28 32 TSR terminate and stay resident program 22 V V Dot standards 35 36 V 42 V 42bis 61 62 Voice and data switching 9 14 4Kbps BOCAMODEM BOLA Manual Part No 9431 Rev 2 1
55. rect baud rate for the service you are calling e g 2400 9600bps If you still have problems connecting try forcing the modem to connect up at the slower speed with the commands AT amp Q6N0S37 6 for 2400 baud and AT amp Q6N0S37 9 for 9600 baud services Download e Make sure the AT amp R1 is set in your terminates active profile abnormally 14 4Kbps BOCAMODEM 33 Appendix A Command Protocol Overview In most cases your communications software will set and control the operation of your modem Following is a brief survey of the most commonly used Hayes compatible AT commands for use with your modem In addition we ve also provided information on extended AT command sets S Registers and commands and registers for high level protocols such as MNP V 42 V 42bis and V 32 V 32bis It will rarely be necessary to use AT commands and S Registers in command mode i e the DOS prompt We include them here for more advanced users who may prefer command mode operation or require special settings See pages 51 71 for additional details Hayes compatible commands consist of a basic command set and an extended command set The basic set involves functions such as dialing a number or putting the modem on hook i e replacing the telephone handset Extended commands allow more sophisticated control of the modem such as transmission speed or initiating high level functions like data compression or error correc
56. resence of data carrier default Data terminal ready DIR signal Interprets the ON to OFF transition of the DTR signal from the DTE according to the amp Q settings AT amp D0 amp Q0 5 6 DTR ignored amp Q1 4 Modem hangs up auto answer not affected amp Q2 3 Modem hangs up auto answer inhibited AT amp D1 amp Q0 1 4 6 Asynchronous escape sequence amp Q2 3 Modem hangs up auto answer inhibited AT amp D2 amp Q0 6 Modem hangs up auto answer inhibited default AT amp D3 amp Q0 1 4 6 Modem does a soft reset as if the ATZ command were received amp Q2 3 Modem hangs up auto answer inhibited AT amp F Recalls factory defaults Instructs the modem to use the factory set parameters DTE Modem flow contol AT amp KO Disable flow control AT amp K3 Enable RTS CTS default for data modem AT amp K4 Enable XON XOFF AT amp K5 Enable transport XON XOFF AT amp K6 Enable both RTS CTS and XON XOFF default for FAX modem 56 Note on Flow Control XON XOFF is a software based flow control method using standard ASCII control characters to pause or resume data transmission RTS CTS pacing a hardware based method uses an electrical signal Signals are exchanged as follows RECEIVER TRANSMITTER CTSON MW START SENDING CTSON RTS ON ready to send CTS OFF RTS OFF stop sending Command Description Select pulse dial make break ratio AT amp PO0 Selects a make break ratio of 39 61 at 10pps US
57. rient or relocate the receiving antennae e Increase the separation between the equipment and the receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help Note This unit was tested with shielded cables on the peripheral devices Shielded cables must be used with the unit to insure compliance Note The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment Such modifications could void the user s authority to operate the equipment Compliance Information 44 Notification to the Telephone Company Notification to the telephone company is no longer required prior to connecting the registered equipment but upon request from the telephone company the user shall tell the telephone company which line the equipment is connected to as well as the registration number and the ringer equivalence of the registered protective circuitry In most but not all areas the sum of all RENs should be 5 0 or less The FCC Registration number and Ringer Equivalence number are printed on the main chip in the center of the internal modem board or on the underside of the external modem Malfunction of the Equipment In the event that the MODEM should fail to operate properly the customer shall disconnect the equipment from the telephone line to determine if
58. s Carrier rate of 2400 bps Carrier rate of 4800 bps Carrier rate of 7200 bps Carrier rate of 9600 bps Carrier rate of 12000 bps Carrier rate of 14400 bps Carrier rate of 16800 bps Carrier rate of 19200 bps 14 4Kbps BOCAMODEM 71 Result Code CARRIER 21600 CARRIER 24000 CARRIER 26400 CARRIER 28800 COMPRESSION CLASS 5 COMPRESSION COMPRESSION NONE PROTOCOL NONE PROTOCOL LAPM PROTOCOL ALT Numeric Value Description 55 Carrier rate of 21600 bps 56 Carrier rate of 24000 bps 57 Carrier rate of 26400 bps 58 Carrier rate of 28800 bps 66 The modem has connected in MNP class 5 and COMPRESSION message reporting has been enabled 67 The modem has connected in V 42bis V 42bis and COMPRESSION message reporting has been enabled 69 The modem has connected without data compression and COMPRESSION message reporting has been enabled 76 Modem has connected without any form of error connection 77 Modem has connected in the V 42 LAPM mode of error correction 80 Modem has connected in the MNP mode of error correction PROTOCOL message reporting has been enabled 72 Glossary A algorithm A formula or procedure which employs various methods defining how data is to be used to give a prescribed result analog signals Signals which can vary over a continuous range e g the human voice over conventional telephone lines Analog circuitry is
59. s 40 7 Issue a dial command to the local modem to instruct it to call the remote modem Wait until the two modems have established a connection 8 Type the escape sequence to revert to command mode The modem will respond with OK 9 To start the test type AT amp T6 ENTER The modem will return a CONNECT response if the loopback data link has been successfully completed and an ERROR response if the link has failed If a CONNECT response was received key in a text message and it will echo on the screen Remote Digital Loopback Test with Self test 1 Set the DTE speed from 1200 to 14 400 bits per second If the speed is less than 1200 or greater than 14 400 the test WILL NOT operate and a result code of ERROR will be generated if the test is attempted The baud rate is also limited to the highest baud rate supported by the telephone line 14 400 is possible if the telephone line is without distortion and noise free If the telephone line has problems bring the baud rate down to 9600 or 2400 If the line quality is too poor use a line simulator to run this test 2 Issue an AT amp Q0 command to the local modem This sets the modem to the direct mode 14 4Kbps BOCAMODEM 41 3 Issue an AT amp Q0 command to the remote modem also setting it to the direct mode 4 Issue an AT amp T4 to the remote modem This instructs the remote modem to grant a request for a remote digital loop back test with self test 5
60. tion These functions are defined and controlled by the available protocols mentioned above A protocol is a set of standards by which data communications operate Every AT command includes an AT prefix followed immediately by the command and in many cases additional parameters AT Command parameter parameter PRESS ENTER Command Protocol Reference 34 Example ATH or ATHO tells the modem to disconnect Extended commands were developed to provide greater functionality and control over modem operations Their format is the same as the basic command except that an additional parameter is required following the AT prefix and before the numerical parameter This additional parameter comes in three different forms the ampersand amp character extended AT command the backslash character extended AT command for MNP the percent character extended AT command for V 42 V 42bis Examples AT amp V tells the modem to display view its current configuration and user profile AT J1 tells the computer to adjust its speed to match line speed when a connection is established AT E1 tells the modem to monitor line quality and request a retrain adjustment to the connection S Registers Modem command language also employs a set of indicators or registers which are various numerical values all with a standard S prefix hence S Registers To a large extent the values defined in the S
61. tware and on the modem e Check your serial cable connection EXTERNAL MODEL ONLY e Try typing AT amp F to reset the modem to its factory defaults e Move the modem to another serial port power down the host computer first If the modem works after being moved it s likely the problem is not with the modem e Make sure the echo command is set to ON Change to echo with the ATE command e Make sure the local yours and remote modem configurations are compatible e Turn off your modem EXTERNAL exit and re run your communication software e Verify that both modems are operating with the same settings speed data parity and stop bits e The software may not be set for correct terminal emulation Configure software to correct type ANSI terminal emulation is most commonly used Troubleshooting SYMPTOM POSSIBLE REMEDY e Power down your system INTERNAL and re run your communications software Check software settings Garbled characters contd e Exit the communications program and restart it e You may not have enabled auto answer Use your software to enable this function The modem does not answer an incoming call e If you have an answering machine it may be answering before the modem can Turn the answering machine off or use the software to set auto answer to respond in fewer rings than the answering machine Modem e Check for any loose connections disconnects while S

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