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Cannondale X440 Motorcycle User Manual

1. The process of varying some characteristics usually amplitude frequency and or phase of a carrier wave to form data transmissions A telephone or modem is being used A telephone or modem is not being used The modem is in a state where it is ready to transmit a call In a dial network it is the modem that makes the call In a leased line network it is one of two sides of the network that is selected to be the originating modem A way of checking data accuracy by counting the number of bits that have a value of one Telephone switching equipment Private Branch Exchange dedicated to one customer A PBX connects private telephones to each other and to the public dial network A dial modem operating mode characterized by a fixed output power level of 9 dBm It is one of two possible modes of operation for modems connected to dial lines see programmable interface A test that checks most hardware components when the modem is powered on A three digit code indicating the modem s highest VF data rate A dial modem operating mode characterized by an output power level 12 to 0 dBm set by a programming resistor in the jack It is one of two possible modes of operation for modems connected to dial lines see permissive interface The rules for timing format error control and flow control during data transmission Public Switched Telephone Network A network shared among many users who can use telephones to establish conne
2. die ect at s ach 2 1 Customer Supplied Equipitient U cae E ce te br pacto qoe e dace ase edie bc pa e 2 1 392 IP Tae InstallaltQn es v deer UE Eder 2 2 DUDE COBDSGoII ee ster u SS sya bsna s GIN AN Re a a 2 3 Dial Line Connection n t u nice ert Ero eerte Cp ede da ice ir rc gei ete 2 3 2 Wire Leased Line Connection PE oa area Geng EE PECES b gab cease 2 3 Telephone Connection NTC 2 3 AC Power Transformer CODUSCOD 2 uuu a l pe pt eae a a gor bel Rab awa oaa 2 3 Communications Software Installation u terore 2 3 Modem PowerUp cce Rm Rete e RERO sas RESTE E AG 2 4 Selecting Factory Configuration Options isole p hiere DERI RR Haddad e Rer unes 2 4 Recovering AT Commands 2 5 Initialization Strings sso sac conics niia EE E EE NE RE Vas a pakpash apiu WF eRe HES 2 6 WP OIG PAPAS AMONG 4 E 2 6 Synchronous Leased Line Applications RR x aS he a 2 6 AT amp T Exclusive Dialing for DATAKIT Applications uvas 2 6 Overview Customer Supplied Equipment The following customer supplied equipment is required to complete a data communications system using a 3825Plus modem This chapter describes how to connect both provided and customer supplied cables to the modem In addition it describes how to recover AT commands when the modem is in Dumb mode and how to enter initialization A
3. An ON Off power switch A power receptacle for ac power transformer A 25 pin DB 25 receptacle for your computer A 6 pin modular jack for external telephone set use only A 6 pin modular jack for dial PSTN lines or 2 wire leased lines On Off Power Computer Phone Line Customer Supplied 495 14695 2 2 November 1996 3825 A2 GB30 20 3825Plus Modem Installation DTE Connection Use the following procedure to connect the RS 232 E cable from the modem to the DTE p Procedure 1 Make sure the modem s rear panel power switch is Off 2 Connect the DB 25 P male connector on the cable to the DB 25 S female connector labeled COMPUTER Figure 2 1 on the modem s rear panel Use a small screwdriver to tighten the cable to the modem 3 Connect the DB 25 P connector on the cable to the DB 25 S connector on the DTE Use a small screwdriver to tighten the cable to the DTE Dial Line Connection Use the following procedure to connect a 3825Plus to the dial network interface p Procedure 1 Insert the 6 position 4 conductor modular plug into the jack labeled LINE Figure 2 1 2 Insert the other end of the modular cord into the dial network interface 2 Wire Leased Line Connection Use the following procedure to connect a 3825Plus modem to the 6 pin center pair leased line network interface A descript
4. Japan Notices CORE OMAR EWI t ORE L IC BY CIEI s NON CHEW CORRS Ie H6 E SE This equipment is in the 2nd Class category information equipment to be used in a residential area or an adjacent area thereto and conforms to the standards set by the Voluntary Control Council for Interference by Information Technology Equipment aimed at preventing radio interference in such residential area When used near a radio or TV receiver it may become the cause of radio interference Read the instructions for correct handling Restrictions Due to JATE Japan Approvals Institute for Telecommunications Equipment regulations only 3 attempts to dial a number are permitted in a 3 minute period If a fourth attempt is made to dial the same number the modem returns the ERROR return code This restriction applies to the number dialed from the command line or from a directory An occurrence of the restriction is canceled when a different number is dialed or when 3 minutes have elapsed G November 1996 3825 A2 GB30 20 Table of Contents Preface Objectives and Reader Assumptions V Howto Use This Manual cs usa Ret ER Rr age Rec R Rose cR V Belated DOocitentS 14 x Sa Ula slkuspa aqa wi Reste Ere ens V 1 Introduction digo e e u z ayuy el a lek Wi aed aqa eee 1 1 u kasu a RS n Roh a 1 1 3825Plus Modem Front Panel and Status Indicators
5. dial command modifiers dial line A user defined configuration area containing customized configuration options for a specific application A user defined configuration area containing customized configuration options for a specific application An area within the modem used to store the modem s firmware A continuous frequency signal that can be modulated by another signal that contains information to be transmitted The elimination of empty fields redundancies and gaps in order to reduce storage capacity needs and the amount of data to be transmitted Anything that is eliminated is restored after the data is received One of two general modem operating modes When in Data mode the modem transmits and receives data instead of accepting commands A 25 pin connector that is used to connect a cable which enables communications between two devices A decibel referenced to one milliwatt into 600 ohms This unit measures relative signal power The equipment Data Communications Equipment or Data Circuit Terminating Equipment that provides the functions required to establish maintain and end a connection This equipment also provides the signal conversion required for communication between the DTE and the telephone line A modem is a DCE Diagnostic Control Panel The front panel of modems such as the 3810Plus or the shared controller of nest mount modems such as the 3811 Plus The DCP permits control and configuration of loc
6. 10 of 14 3825Plus AT Commands amp Sn DSR Control Data Set Ready DSR is a signal from the modem to the DTE indicating the modem is connected and ready for operation amp S amp SO Forced On Forces DSR output ON constantly This is usually used for leased line applications and when the DTE requires DSR to always be ON 851 Standard RS232 Modem controls DSR to the DTE The modem raises DSR when it begins the handshake process DSR lowers upon disconnect The modem is not ready to receive data until DSR CTS and LSD are active amp S2 Wink When Disconnect DSR is normally forced ON but is turned Off for 1 to 2 seconds upon a disconnect amp S3 Follows DTR When the modem receives DTR from the DTE it sends DSR to the DTE amp S4 On Early DSR is low when the modem is in the idle state DSR goes high immediately upon a command to enter Data mode This setting is required for some modem pooling applications amp S5 Delay to DTE Operation is similar to the Standard RS232 setting except that DSR does not turn ON until the modem enters Data mode Normally the modem raises DSR when it begins the handshaking process amp Tn Tests amp T amp TO Abort Stops any test in progress amp T1 Local Analog Loop The modem must be in Direct mode amp T2 Pattern Transmits and receives a 511 Bit Error Rate Test BERT The modem must be online and in Direct mode amp T3 Local Digital Loopback test The modem must be
7. COMSPHERE 3825PLUS MODEM USER S GUIDE Document No 3825 A2 GB30 20 November 1996 ick Install Quick Installation for the COMSPHERE 3825Plus Modem A Get your modem ready Your modem needs a serial cable to connect it to your computer One end must have a 25 pin plug and the other end must have a socket that matches the modem port on your computer This is a 25 pin or a 9 pin conned mm amp s 2 Plug the serial cable into the serial port of your PC 1 Plug your phone into the modem jack Plug the serial cable marked PHONE into your modem C2 o o Plug the small power Take one end of the line cord 7 6 connector into the 4 included with your modem and modem jack marked plug it into the modem jack Plug the transformer at the POWER marked LINE See your User s other end of the power Guide for information about cord into a 110 Vac power leased line connections outlet Turn on your modem and your PC Take the other end of the line cable and 5 plug it into your telephone wall outlet B Get your QuickLink Il Fax software ready 1 Insert the QuickLink Fax disk into your disk drive 2 From the Microsoft Windows Program Manager select File Run and then type a install or b install if you are using drive B at the command line Under DOS type at the CA prompt Press Enter 3 Follow the instructions the install program displays on your screen
8. 1 2 2 3825Plus Modem Installation Raderus etg 2 1 3825Plus Modem Package oM ted bait 2 1 3825Pluslnstallatignm 2 E Leer re eee Her eere 2 2 2 3 Dial Line Connection nsee sede eee dre OE ere E bbe 2 3 2 Wire Leased Line Connection ao ul 00 0 eee 2 3 Telephone Connection 4 25 chek ties Gato hed pu teed 2 3 AC Power Transformer Connection 2 3 Communications Software Installation 2 3 Modem PowerUp 2244254655 te 242i bees 2 4 Selecting Factory Configuration Options 2 4 Recoverme AT Commands 2 b cco pO RR CD REP ENS 2 5 Initialization SINES Ju rbbOERE RED P een E Rud 2 6 3 Fax Operation bs entibus iere e ee bU VERE ERES 3 1 Pax Operation 4 056 avons tE nka EE RR Rei Masini 3 1 3825 A2 GB30 20 November 1996 COMSPHERE 3825Plus Modem 4 AT Commands and S Registers Overview Security 5 Remote Access Overview Remote Access A Result Codes Overview B Troubleshooting Overview Automatic Firmware Download C Technical Specifications D Pin Assignments EIA 232 E Pin Assignments JM8 to RJ11 Crossover Cable Operating Command Guidelines AT Command List orcos irr llo Register Mish meot November 1996 3825 A2 GB30 20 Table of Contents E CCITT V 25bis Dialing C
9. Call Request Commands Call Request commands are issued from the DTE to the modem and are responsible for initiating any dial calls Call Request commands include Call Request with Number Provided CRN Call Request with Stored Memory Address Provided CRS Call Request with Number Provided CRN The CRN command dials the telephone number entered from the DTE CRN is similar to the ATD command The CRN command format is CRNn Where n is the dial string The following characters are permitted T DTMF Dialing P Pulse Dialing 0 9 DTMF Tones or Pulse Dialed Digits ABCD DTMF Tones R Reverse Dial Wait for Dial Tone Or lt User Defined Pause amp Flash Hook or gt Delimiters Call Request with Stored Memory Address Provided CRS The CRS command dials the telephone number stored in the request directory location CRS is similar to the ATDS command The CRS command format is CRSx Where x is directory location 1 10 The modem responds to the command with either a VAL valid or INV invalid response followed by a call progress report such as connect CNX or failure CFI Call Response A Call Response indicates if the command was accepted by the modem Call Response includes Call Failure Indication CFI and Call Connecting CNX Call Failure Indication CFI The CFI response is issued to the DTE if the modem fails a CRN or CRS command CFI is similar to the AT result codes BUSY NO AN
10. If this happens the telephone company will provide advance notice in order for you to make the necessary modifications in order to maintain uninterrupted service If you experience trouble with this equipment please contact your sales or service representative as appropriate for repair or warranty information If the product needs to be returned to the company service center for repair contact them directly for return instructions using one of the following methods Via the Internet Visit the Paradyne World Wide Web site at http www paradyne com Via Telephone Call our automated call system to receive current information via fax or to speak with a company representative Within the U S A call 1 800 870 2221 International call 813 530 2340 If the trouble is causing harm to the telephone network the telephone company may request that you remove the equipment from the network until the problem is resolved The user is not authorized to repair or modify the equipment This equipment cannot be used on public coin service provided by the telephone company Connection to Party Line Service is subject to state tariffs Contact the state public utility commission public service commission or corporation commission for information The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a computer or other electronic device to send any message via a telephone fax machine unless such a message
11. RLN The Request List of Stored Numbers RLN command displays telephone numbers stored in the modem s directory location If the RLN command is entered without specifying a directory location then all directory locations and telephone numbers are displayed If a directory location is entered then only that telephone number is displayed The RLN command format is RLN which displays all directory locations or RLNx Where x is a directory location List Stored Number Response LSN LSN is a response to an RLN command issued by the DTE If a directory location is specified then the telephone number for that location is displayed If no directory location is specified then all telephone numbers stored in memory are displayed The LSN response format is The CIC command format is CIC LSNxn If CIC is issued within 10 seconds the modem sends Where T x 23 the VAL response to the DTE If CIC is issued after Has hE elephone number 10 seconds INV isreturned 3825 A2 GB30 20 November 1996 E 3 COMSPHERE 3825Plus Modem Command Response A Command Response indicates that the command entered was a valid or invalid entry Command Response includes Valid VAL and Invalid INV Valid VAL The INV response format is INVxx Where XX iS CU command unknown MS message syntax error PS parameter syntax error PV parameter value error The VAL response indicates that the modem has accepted the V 25bis
12. See Security at the end of Chapter 4 3825 A2 GB30 20 November 1996 B 3 COMSPHERE 3825Plus Modem Table B 4 3 of 3 Modem VF Connection Symptom Action Modem establishes and disconnects a call You may have a poor VF connection Disconnect and dial again The remote modem may have encountered an EC Disconnect where the modem is configured to establish a call using error correction If the modems cannot negotiate EC then a disconnect occurs The remote modem may be in a forced Error Control mode disconnect if there is no error control Reconfigure your modem to V 42 MNP or Buffer and try again Perform a Local Analog Loopback test to check the modem s hardware operation High error rates occur when running a local loopback or self test Incoming rings can cause data errors during a loopback test Abort the test disconnect the modular VF cord and restart the test Table B 5 Modem DTE Connection Symptom Action Modem does not accept or echo back AT commands Verify that the cable between the Async port of the DTE and the modem is a standard RS 232 cable If the cable is bad replace it Null modem cables also known as crossover cables do not work in this application Reload the Async Dial factory configuration area to guarantee that all configuration options are returned to their proper setting Refer to the Recovering AT Commands section in Chapte
13. transmit level AT amp I 4 10 transmit type AT amp J 4 10 troubleshooting B 1 UNIX factory default for 4 9 upgrade instructions B 5 V 21 or V 22 modulation 4 3 V 25bis applications 2 6 V 25bis Coding S62 4 22 V 25bis dialing 4 11 V 25bis dialing commands E 1 V 25bis Idle Character S63 4 23 V 25bis New Line Character 4 23 V 29 Train On Data S92 4 26 V 32bis Automode S78 4 24 V 32bis Autorate Dial Line 4 24 V 32bis Autorate Leased Line 4 25 V 32bis Train S43 4 20 V 42 ARQ Window Size S89 4 26 V 42bis Compression AT H 4 7 VF and DTE security 4 27 VF password SV command 4 29 described 4 27 VF plus DTE password SB command 4 29 VF Prompt Type S95 4 30 VF Rate 4 20 4 21 VF rate 4 13 VF with DTE security 4 27 W Wait for dial tone 4 4 XON XOFF 4 15 XON XOFF Passthrough AT X 4 16 3825 A2 GB30 20 November 1996 Index 5
14. 36 7200 V 34 37 4800 V 34 38 2400 V 34 NOTE Turn your modem off and on after setting S44 for the setting to take effect The factory setting is 28 800 V 34 L S45 Leased Line Transmit Level Level determines the modem s transmit power output level over leased lines Enter a value from 0 15 dBm The factory setting is 0 dBm for North America 1 dBm for Turkey 7 dBm for Belgium and Singapore 9 dBm for Switzerland 10 dBm for Netherlands Norway and Sweden 11 dBm for Denmark and Finland 12 dBm for France and 15 dBm for Germany and Japan See Appendix F S48 Leased Line Carrier On Level Determines if the modem disconnects if the carrier signal on leased lines falls below 26 dBm or 43 dBm Register has the following values 43 dBm 12 26 dBm 2 33 dBm The factory setting is 43 dBm for all countries except France for which it is 33 dBm See Appendix F 3825 A2 GB30 20 November 1996 4 21 COMSPHERE 3825Plus Modem Table 4 2 6 of 10 3825 Plus S Registers 949 Transmit Buffer Disconnect Delay Determines the maximum amount of time the modem can continue to send data in its Transmit Buffer to the remote modem after it is commanded by the DTE to disconnect Register has the following values 0 Disable Immediate disconnect 121 second 2 2 seconds 255 255 seconds Factory default is 10 seconds
15. 4 November 1996 3825 A2 GB30 20 3825Plus Modem Installation NOTE When configuring your modem keep a record of its configuration options as a future reference in case the modem must be replaced To establish a connection with a remote modem use the D Dial command Refer to Chapter 4 AT Commands and S Registers for more information Recovering AT Commands AT commands are issued from asynchronous terminals and personal computers Certain dialing methods such as V 25bis and synchronous operation disable the use of AT commands and place the modem into a state known as Dumb mode The 3825Plus is capable of normal operation when in Dumb mode However if the setting of a configuration option must be changed it can only be accomplished using an AT command The AT Recovery command AT places the modem into a temporary state that restores AT commands When in this state the modem s previous settings are retained except for the following configuration options e The DTE Dialer Type configuration option amp M and amp Q is set to AT e The Async Sync Mode configuration option amp M and amp Q is set to Async The DSR Control configuration option amp S is set to Forced On The LSD Control configuration option amp C is set to Forced On If these settings are not appropriate then change them to a setting compatible with your current application The procedures for an AT recovery
16. Answer Security DTE passwords alone or a combination of both VF and DTE passwords may be used for Answer Security With VF and DTE Security modems negotiate VF password entry before training If successful the modems connect and then prompt the user for a valid DTE password Another combination is called VF with DTE Security In this case the modem will accept as valid only the DTE password whose password table entry immediately follows that of the VF password that was received For example if the VF password at index number 9 is used to connect the DTE password at index number 10 is the only valid DTE password The command used to add a VF password 96S V or SB determines whether combination security is used S register S68 determines whether VF and DTE Security or VF with DTE Security is used 3825 A2 GB30 20 November 1996 4 27 COMSPHERE 3825Plus Modem Callback Security Callback Security causes the responding modem to disconnect and call back to the phone number provided by the user at the originating modem The user enters the number when prompted by the remote modem as a Directory location 1 10 preceded by the sign or as a complete telephone number including the pause and wait dial modifiers For example 1 Directs the remote modem to call back to the number stored in Directory 1 10 Directs the remote modem to call back to the number stored in Directory 10 9W18005551234 Directs the remote m
17. CCITT V 25bis Dialing Commands and Responses M C ET E 1 Call Request COnBDABHdB errores ie sas eet tot iet pte eset gelu adie Rye ut atre ctc at ied e E 2 Call Request with Number Provided CRN coore enir remet eterne hme E 2 Call Request with Stored Memory Address Provided CRS E 2 GUNT ECL E 2 Call Failure Indication GED Ra S eer E 2 Delayed Call Indication DLG e cade sd nace rete eatin dss a UR qaku laquwan UE edi peace E 2 Call C onmectihs CIN C ieee an cence Ao asua es the cac leh atch im BOR S SOR E Rcg tree E 3 Call Adiswer CONIA L u bce I hod etd tfe s opc a agone een cst eo a kul ceras E 3 Incoming Call INC coo erdt ee px e UE de ERG eas E 3 Disr gard Incoming Call DIC e Rm e RR Rh REY Se ee SE e E 3 Connect Incoming Call CIC u u yun de eve doe Ede eese E 3 Program Normal PRN soeces ck ERR didain EE EA RbeDe me PEARL ER ERE ys akapa NES E 3 Request List of Stored Numbers REN e u s els pL Sos ake os ODE a etr redes E 3 List Stoted Number Response SIN Pao reo pico ace obe er bad alle E 3 Command Response ere don GR PRSE EE EE Rer dd ee panem EE a Pede E 4 Valid VAL serte cipis chier ker eme saa HEE AREER FER RR Cs E 4 Jal NS u uu E aya Senate ncaa uerus evcidop u b ayaqa apak debat i ated ns E 4 Overview CCITT V 25bis is an international dialing protocol that permits direct and stored number dial
18. Chapter 5 shows how to use the Diagnostic Control Panel DCP of a COMSPHERE modem to access and control a remote 3825Plus modem Appendix A lists result codes produced by the modem Appendix B provides instructions for performing diagnostic tests when data communications problems occur and explains the Automatic Firmware Download process Appendix C lists the technical specifications of the 3825Plus modem Appendix D provides EIA 232 E and JM8 to RJ11 crossover cable pin assignments Appendix E provides V 25bis dialing information Appendix F shows configuration options whose validity or default values vary according to country code The Glossary provides a description of terms used throughout this manual Related Documents 3980 A2 GB30 COMSPHERE 3800Plus Modems User s Guide 6700 A2 GY31 COMSPHERE 6700 Series Network Management System User s Guide 6800 A2 GE26 COMSPHERE 6800 Series Network Management System User s System Administrator s Guide Call your sales representative to order additional product documentation 3825 A2 GB30 20 November 1996 o P REEMRCRPCHPL aS BeatHli St xou 3825Plus Modem Front Panel and Status Indicators Status Indicators LEDs cede cicadas Overview The 3825Plus modem is a member of the COMSPHERE 3800 Series Modem product line The 3825Plus is a high speed dial modem that offers reliable asynchronous and synchronous op
19. Dial Stored Number Dials the number stored in Location n 1 10 To store a telephone number refer to the amp Zn x command En Command Character Echo Controls whether or not characters are echoed back to the DTE when the modem is in Command mode E EO Disables echo to the DTE E1 Enables echo to the DTE 4 4 November 1996 3825 A2 GB30 20 AT Commands and S Registers Table 4 1 3 of 14 3825Plus AT Commands Hn Hook Switch Control Allows the modem to go off hook or on hook H H0 Modem goes on hook H1 Modem goes off hook In Identification Provides useful information when upgrading or servicing the product I 10 Displays product code default is 144 H Displays 3 digit firmware revision number 12 Performs an EPROM check I3 Displays serial number I4 Displays model number I5 Displays hardware part number I6 Displays software part number I9 Displays 3 digit firmware revision number same as 11 110 Allows you to change the value displayed by IO 110 0 causes 10 to display 144 default 110 1 causes IO to display 240 110 2 causes IO to display 480 110 3 causes 10 to display 960 110 4 causes IO to display 120 111 Displays the program memory checksum 117 Displays the last eight critical errors the first is the most recent Support personnel use only 119 Displays the entire firmware revision number Ln Speaker Volume Adjusts speaker volume L LO Sel
20. Let the Auto Detect feature determine which COM port you are using C Get yourself ready You are now all set to explore a world of information and entertainment Use QuickLink Il Fax to send and receive faxes or to dial Bulletin Board Systems and friends Subscribe to online services like CompuServe GEnie and America Online Connect with a few of the millions of people with computers and fax machines If you have questions about your modem refer to page A for contact information COMSPHERE 3825Plus Modem COMSPHERE 3825Plus Modem User s Guide 3825 A2 GB30 20 3rd Edition November 1996 Changes and enhancements to the product and to the information herein will be documented and issued as a new release or a limited revision of this manual The 3825Plus modem connects to the Public Switched Telephone Network PSTN using the Universal Service Order Code USOC for Permissive mode RJ11C An RJ14C jack must be used to connect a two line telephone to the modem The Canadian equivalent to RJ11C is CA11A and the Canadian equivalent to RJ14C is CA14A For connection to an analog private line an adapter cable should be used to facilitate connection to a JM8 jack The Canadian equivalent is CA40A FCC Registration number See label on modem Ringer Equivalence number REN See label on modem Canadian Certification number See label on modem Canadian DOC Load number See label on modem Warranty Sales and Service Informa
21. New releases may be available for the 3825Plus modem The latest 3825Plus firmware is available at no charge from the Automatic Firmware Download Center Refer to page A in the front of this document for contact information Informational messages are displayed on your DTE when the modem is connected These show the amount of time the download will take If the modem connects at 14 400 bps the download takes about 10 minutes When the download is complete the modem resets itself Download Failure If the download is interrupted the modem is left in a state in which it can only be used to receive a call for a download The MR Pwr LED blinks slowly when the modem is in this state and the modem will not respond to AT commands If you are unable to complete the download call your service representative 3825 A2 GB30 20 November 1996 B 5 Technical Specifications Table C 1 1 of 2 Model 3825Plus Technical Specifications Specifications Description APPROVALS Refer to the label on your modem or contact your local sales representative COMPATIBILITY AND VF DATA RATES Dial Line Modulations Proprietary V 34 33 600 31 200 bps ITU T V 34 28 800 26 400 24 000 21 600 19 200 16 800 14 400 12 000 9600 7200 4800 2400 bps V 32terbo 19 200 16 800 bps CCITT V 32bis 14 400 12 000 9600 7200 4800 bps CCITT V 32 9600 4800 bps CCITT V 22bis 2400 bps CCITT V 22 1200 bps CCITT
22. V 22 1200 bps V 21 300 bps Bell 212A 1200 bps and Bell 103J 300 bps Two wire Leased Line Modulations Proprietary extensions of V 34 33 600 and 31 200 bps ITU T V 34 up to 28 800 V 32terbo 19 200 and 16 800 bps V 32bis 14 400 12 000 9600 7200 and 4800 bps V 32 9600 and 4800 bps and V 22bis 2400 bps e Class 1 and Class 2 Group III Fax modulations CCITT V 17 14 400 12 000 9600 7200 bps V 29 9600 7200 bps and V 27ter 4800 2400 bps Convenient migration to new or optional features through software downloading e CCITT V 42bis and MNP Class 5 data compression e Virtual error free data integrity with CCITT V 42 and MNP Levels 2 4 error control e Asynchronous dial DTE data rates from 300 bps 115 200 bps e Enhanced Throughput Cellular ETC which improves reliability and speed over cellular links Compatibility with the industry de facto standard AT Command set 3825 A2 GB30 20 November 1996 1 1 COMSPHERE 3825Plus Modem High speed transmission using asynchronous synchronous or UNIX devices over full or half duplex dial networks or 2 wire leased lines e Support as a remote tributary device by the COMSPHERE 6700 or 6800 Series Network Management System Compatibility with COMSPHERE 3800Plus 3800 and 3900 Series modems Remote Access Mode which allows users to view the configuration options of a 3825Plus modem from their front panel LCD
23. V 32terbo max rate 16 800 bps 9981 19200 V 32terbo max rate 19 200 bps 3825 A2 GB30 20 November 1996 4 13 COMSPHERE 3825Plus Modem Table 4 1 12 of 14 3825Plus AT Commands Cn MNP5 Data Compression Determines if the modem uses MNP Class 5 data compression It can be set independently of V 42bis data compression Online changes do not take effect until a disconnect occurs C CO Disable C1 Enable 96SA SB SD SP SR SV see Security at the end of this chapter FCLASSzn Service Class Selection Normally set by fax software Service Class Selection determines the fax protocol The command is sent to the modem in the format FCLASS n where n can be set to one of three values 0 Data 1 Class 1 Fax EIA 578 2 Class 2 Fax EIA TIA SP 2388 dated 20 August 1990 In the format FCLASS the FCLASS command returns the current Service Class 0 1 or 2 In the format FCLASS the FCLASS command returns the Service Classes available 0 1 2 NOTE Other fax commands supported by the 3825P us modems are not documented in this manual because they are not normally issued by the user They follow the EIA 578 and EIA TIA SP 2388 specifications An Maximum Frame Size Sets the maximum frame size for V 42 and MNP For V 42 128 is the maximum value if a larger value is specified it will default to 128 For MNP the minimum value is 64 if a smaller value is specified it
24. a problem still exists then the problem is likely 3825 A2 GB30 20 November 1996 B 1 COMSPHERE 3825Plus Modem Table B 2 Online Operation Symptom Action Data scrambled or unreadable Verify that the character format data bits parity and stop bits is set to the same value in both modems Missing data during a transfer Verify that you are using the same method of flow control for both the modem and the DTE If using XON XOFF flow control verify that the modem s parity matches the DTE s parity Table B 3 Leased Line Operation Symptom Action Modems do not train up on leased lines Verify that the correct cabling is used for your application Refer to Chapter 2 for modem installation instructions Verify that one modem is configured for Answer mode and the other is configured for Originate mode Table B 4 1 of 3 Modem VF Connection Symptom Action Modem does not receive a dial tone Attach the telephone directly to the wall outlet to verify that a dial tone exists Make sure the VF line is connected to the modems rear jack labeled LINE Modem does not go off hook and answer an incoming call Verify that the Auto Answer Ring Count configuration option S register 0 is set to a value other than 0 disable Verify that the DTE is providing DTR to the modem If the DTE does not provide DTR to the modem verify that the modem s am
25. before automatically answering a call Enter zero 0 if you do not want the modem to automatically answer any calls Otherwise enter a value from 1 255 for the number of rings to count before answering Note that if disabled the modem can only answer with an ATA command The factory setting is 1 for Denmark Finland Germany Japan Netherlands North America Norway Singapore Sweden Turkey and UK 2 for Belgium and France and 3 for Switzerland See Appendix F S2 AT Escape Character Determines ASCII value used for escape sequence to enter Command mode from Data mode Enter a value from 0 to 127 for the escape character Any value greater than 127 causes the modem to disable the escape sequence When the escape sequence is disabled the modem cannot return to Command mode until the call is disconnected The factory setting is 43 ASCII key S3 Carriage Return Character Determines ASCII value used as the carriage return Enter key This character is used to end command lines and result codes Enter a value from 0 to 127 for the command end character The factory setting is 13 ASCII carriage return NOTE The amp W command used to save this change must be on a separate line This ensures both that the change is intentional and that the DTE can enter the new character 3825 A2 GB30 20 November 1996 4 17 COMSPHERE 3825Plus Modem Table 4 2 2 of 10 3825 Plus S Registers S4
26. command issued by the DTE VAL is Table E 1 lists V 25bis commands supported by the similar to the AT result code OK 3825Plus modem Invalid INV The INV response indicates that the modem has received an incorrect V 25bis command from the DTE INV is similar to the AT result code ERROR Table E 1 V 25bis Commands V 25bis Command Description AT Command S Register Equivalent CALL REQUEST COMMANDS CRN Call Request with Number Provided ATD CRS Call Request with Memory Address ATDS CALL ANSWER COMMANDS INC Incoming Call Indication RING DIC Disregard Incoming Call NONE CIC Connect Incoming Call ATA PROGRAM COMMAND PRN Program Normal AT amp Z LIST REQUEST RLN Request to List Stored Number NONE E 4 November 1996 3825 A2 GB30 20 CCITT V 25bis Dialing Commands and Responses Table E 2 lists V 25bis response messages supported by the 3825Plus modem Table E 2 V 25bis Response Messages V 25bis Command Description AT Command Result Code Equivalent CALL RESPONSE CFI Call Failure Indication BUSY NO ANSWER NO CARRIER NO DIAL TONE ERROR CNX Call Connecting Indication CONNECT LIST RESPONSE LSN List Stored Number NONE COMMAND RESPONSE VAL Valid Command OK INV Invalid Command ERROR 3825 A2 GB30 20 November 1996 E 5 Country Specific Configuration Configuration Options by Country Configura
27. displays e Storage of up to 10 telephone numbers to directory locations Originate Security and three Answer Security modes Callback Security with telephone directory index or telephone number e Two factory defined configurations and two user defined configuration areas 3825Plus Modem Front Panel and Status Indicators The front panel of the 3825Plus modem is equipped with 8 LEDs status indicators that monitor modem activity Figure 1 1 Status Indicators LEDs The 3825Plus s status indicators continuously provide information on the modem s operating condition Table 1 1 lists the label color and functionality of each status indicator 3825Plus AD 0 Ag Nu 24 495 14694 Figure 1 1 3825Plus Front Panel 1 2 November 1996 3825 A2 GB30 20 Introduction Table 1 1 3825Plus LEDs Label Color Indicates EC SQ green Error Control Signal Quality ON The modem is in Error Control mode Off The modem is not in Error Control mode Flashing Predominantly ON The modem is in Error Control mode and is receiving errors due to poor VF line signal quality Flashing Predominantly Off The modem is not in Error Control mode and is receiving errors due to poor VF line signal quality HS RI green High Speed Ring Indicate ON Modem is operating at the rate for which it is configured Off Modem is operating at a lower rate than that
28. for which it is configured Cycling ON and Off The Ring Indicate signal is being sent to the DTE CD green Carrier Detect ON The modem has detected a valid modulation carrier signal and is capable of transferring received data to the DTE OH APL green Off Hook Analog Private Line ON The modem is off hook and set for Dial Off The modem is on hook and set for Dial Slow Flashing Modem is set for Leased APL RD green Receive Data ON Received data is being transferred to the DTE SD green Send Data ON The modem is receiving data from the DTE to transmit TR green Terminal Ready ON The DTE has turned ON the DTR Data Terminal Ready signal or the modem is configured to ignore DTR Off The DTR signal is Off MR Pwr green Modem Ready Power ON Signifies that Power is ON if the modem is set for Dial and is on hook Signifies that the EIA DSR Data Set Ready signal is ON if the modem is off hook or set for Leased Off Signifies that Power is Off if the modem is set for Dial and is on hook Signifies that the EIA DSR signal is Off if the modem is off hook or set for Leased Slow Flash Modem is in download only mode Fast Flash Modem is in cloning mode NOTE In Leased mode Power is ON when the OH LED is flashing 3825 A2 GB30 20 November 1996 1 3 3825Plus Modem Installation APR PEE 2 1 SOLS FIs Modeni PACK ee u
29. initiate a dial If using V 25bis Async verify that the correct character format is set to 7 data bits with even parity and 1 stop bit and the carriage return and line feed are used as command terminators If using V 25bis bisync verify that the correct character format uses two synchronous control characters and a start of text control character before the text block and an end of text control character after the text block Modem does not go off hook and begin dialing continued If using V 25bis verify that the correct character format uses flag address and control characters before the text block and a frame sequence check and flag after the text block Modem dials but does not connect If the modem is operating behind a PBX verify if a 9 and comma are needed before the telephone number Verify whether Tone or Pulse dialing is needed Verify if one modem is configured for Error Control or Disconnect and the other modem is configured for no Error Control Try calling in Buffer mode If both modems use V 32bis or V 32 modulation set the modem s V 32bis Train configuration option to Long Intermittent disconnects high error rates or excessive retransmissions Use the AT amp T7 command to perform a remote digital loopback test with pattern test Modem connects but sends ERROR result code to DTE Your modem may be configured to use security and you are not supplying the proper passwords
30. modem s operation and software configuration AT commands are only applicable when the DTE Dialer Type configuration option is set for AT See amp Mn and amp Qn commands AT commands are entered while the modem is in Command mode and use the following format TYPE ATXn Where X is the AT command and n is the specific value for that command PRESS Enter Table 4 1 lists all AT commands supported by the 3825Plus modem The Async Dial factory default is listed in bold Reference to particular country codes in this guide is not an assurance that the modem has been approved for use in that country Consult your sales representative Not all commands are valid in all countries See Appendix F 4 2 November 1996 3825 A2 GB30 20 AT Commands and S Registers Table 4 1 1 14 3825Plus AT Commands AT Command Recovery Mode Allows the modem to remain in Asynchronous data mode so that AT commands can be used to change the modem s current configuration Use this command when AT commands are disabled or the modem is operating in Synchronous data mode This command can only be executed after the completion of a power up self test Refer to the Recovering AT Commands section in Chapter 2 for procedures and guidelines on this command A Repeat Last Command Reexecutes the last command string Not to be preceded with AT or followed by pressing the Enter key A Answer Mode Allows the mod
31. software settings 3 1 standards 3 1 types supported 1 1 features 1 1 firmware cloning 4 8 firmware download B 5 firmware revision number 4 5 firmware upgrade B 5 flow control M AT Q command 4 15 menu tree remote 5 2 DTE to modem 4 15 Data Compression AT C 4 14 modem to DTE 4 15 modulation problems B 3 modem to modem 4 14 Modulation Data Rate B 4 13 problems B 2 modulations supported C 1 frame size VA 4 14 front panel 1 2 front panel LEDs 1 2 network management system NMS 1 2 H NMS COMSPHERE 6700 or 6800 Series NMS 1 2 No Carrier Disconnect S10 4 18 hang up ATH 4 5 No Data Disconnect Trigger Signal 4 25 hook flash 4 4 Hook Switch Control ATH 4 5 operating modes 4 1 Originate Security S70 4 30 3825 A2 GB30 20 November 1996 Index 3 COMSPHERE 3825Plus Modem P P Pulse dial 4 4 part numbers 2 1 password Administration 4 27 deletion SP 4 29 display SP 4 29 DTE SD 4 29 entry attempt limit 4 30 entry wait time 4 30 Originate Access 4 27 Remote Access 4 22 types 4 27 VF SV 4 29 VF plus DTE SB 4 29 VF Prompt Type 4 30 pin assignments EJA 232 E D 1 JMS to RJ11 crossover cable D 2 Power LED B 1 power up procedure 2 4 primary channel 5 1 quiet answer 4 4 R Reverse dial 4 4 recovering use of AT commands 2 5 remote access S55 4 22 Remote Access Password 4 22 Remote branch 5 1 remote modem Top Level men
32. synchronized by timing signals Characters are sent at a fixed rate This type of transmission is more efficient than asynchronous transmission One of two dialing methods in which telephone numbers are sent as tones across the telephone lines A process where two modems try to establish a connection over the VF line Underwriter s Laboratories Inc A factory preset configuration area containing the configuration options most often used in a UNIX dial network Universal Service Ordering Codes A fax communications standard for modems operating half duplex with synchronous data at 14 400 bps A standard for modems operation full duplex with asynchronous or synchronous data at 1200 bps over the dial network PSTN A standard for modems operating full duplex with asynchronous or synchronous data at 1200 or 2400 bps over the dial network PSTN A dialing protocol that permits direct and stored number dialing in asynchronous bisynchronous or HDLC modes A fax communications standard for modems operating half duplex with synchronous data at 2400 and 4800 bps A fax communications standard for modems operating half duplex with synchronous data at 7200 and 9600 bps A standard for modems operating full duplex with asynchronous or synchronous data at 4800 or 9600 bps on switched dial or leased telephone lines Glossary 6 November 1996 3825 A2 GB30 20 Glossary V 32bis V 32terbo V 34 V 42 V 42bis V 5
33. t S s 8 WES ME x Description Selection Command m A m 9 Z Z Z 0 5 95 Leased TX 0 dBm S45 0 l l l l l l l F l l l l l l Level S45 1 dBm S45 1 V V V V V V V V l l V V 2 to 6 dBm S45 2 to V V V V V V V V l l V V V V S45 6 7 dBm S45 7 F V V V V V V V l F V V V V 8 dBm S45 8 V V V V V V V V l V V V V V 9 dBm S45 9 V V V V V V V V l V V F V V 10 dBm S45 10 November 1996 F 5 3825 A2 GB30 20 Active Operating Active Saved analog loop analog signal Answer mode ASCII asymmetric rate Async Dial asynchronous transmission AT command set AT prefix autobaud automatic answer Glossary A configuration area containing configuration options currently in use by the modem When a power cycle occurs a reset is performed or a save is issued this area is updated with the contents of Active Saved A nonvolatile configuration area containing the most recently saved configuration options Any changes made to configuration options can be saved by issuing an AT amp WO command See local analog loop A type of signal composed of continuously variable values used to transmit voice or data over telephone lines The modem is in a state where it is ready to receive an incoming call For example an ATA Answer command has been issued to place the modem into online answer mode The modem has been forced off hook and is generating an answer tone beginning the handsha
34. that permits text to be displayed on the DCP Glossary 4 November 1996 3825 A2 GB30 20 Glossary leased line LED local analog loopback long space disconnect loopback test LSD MNP modem modulation off hook on hook Originate mode parity PBX permissive interface power up self test product code programmable interface protocol PSTN pulse dialing A private line connection exclusively for the user No dialing is necessary Light Emitting Diode A light or status indicator on the DCP that glows in response to the presence of a certain condition e g Alrm The modem s transmit VF signal is looped to its receiver A disconnect can occur if the modem receives an extended space from a remote modem for example when a remote modem is commanded to disconnect it transmits a continuous space to the modem before disconnecting Any test that verifies a device s integrity by connecting the device s output of one direction to the device s input of the other direction then checking the received signal for errors Line Signal Detect A signal between the DTE and modem indicating energy exists on the transmission circuit This protocol Microcom Networking Protocol detects and corrects data errors caused by telephone line noise and signal distortion MNP5 includes data compression MOdulator DEModulator A device that transforms signals from digital to analog form and vice versa
35. the following 1 a UL Listed CSA Certified power source with a Class 2 or Limited Power Source LPS output for use in North America or 2 a certified power source with a Safety Extra Low Voltage SELV output for use in the country of installation In addition if the equipment is to be used with telecommunications circuits take the following precautions Never install telephone wiring during a lightning storm Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface Use caution when installing or modifying telephone lines Avoid using a telephone other than a cordless type during an electrical storm There may be a remote risk of electric shock from lightning Do not use the telephone to report a gas leak in the vicinity of the leak 3825 A2 GB30 20 November 1996 B COMSPHERE 3825Plus Modem Notices WARNING THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH THE LIMITS FOR A CLASS B DIGITAL DEVICE PURSUANT TO PART 15 OF THE FCC RULES 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 AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL MAY C
36. to monitor for Busy Tone Enable or ignore Busy Tone Disable Disable Modem ignores busy tone Enable Modem monitors for busy tone Yn Long Space Disconnect Determines the modem s response to a continuous spacing condition sent from the remote modem when it goes on hook Issuing a long space is one method of disconnecting a call Y YO Disable Ignores long space Y1 Enable Disconnects if long space is detected Enables transmission of a long space Zn Reset and Load Active Z Z0 Loads configuration options from Active Saved to Active Operating Z1 Loads configuration options from Customer 1 to Active Operating Z2 Loads configuration from Customer 2 to Active Operating Z3 Loads configuration options from Active Saved to Active Operating and performs a reset Z9 Performs a full modem reset as if the modem were powered off and on Fn Clear Error Buffer Clears the buffer where information about the last critical error is stored For support personnel use only F Clear error buffer Hn V 42bis Compression Enables or disables V 42bis data compression H HO Disable H1 Transmit only H2 Receive only H3 Enable 3825 A2 GB30 20 November 1996 4 7 COMSPHERE 3825Plus Modem Table 4 1 6 of 14 3825Plus AT Commands amp amp P1 Clone Remote Copies the firmware from the modem that receives the command to another 3825Pius modem The modem must be in O
37. using an asynchronous terminal or personal computer are listed in the following section Read through these procedures before performing a recovery 1 Turn the modem Off and then ON The modem performs a power up self test in which all LEDs light While this is running repeatedly press the A key of your DTE s keyboard or keep the key depressed if your keyboard automatically repeats characters that way Keep doing this until A s or a s appear on your DTE screen You may use all uppercase or all lowercase characters At least three consecutive A s must be entered within a 2 second time interval If these characters are not echoed back to the DTE screen after the power up self test is complete then the modem is still in Dumb mode and maintains its current configuration Turn the modem Off and then ON again and repeat Step 1 2 Once the characters are echoed back to the DTE TYPE ques The case of this character must be consistent with the case used in Step 1 Mixed case prefixes such as aT or At are not recognized This must be entered within 10 seconds after receiving the echoed characters PRESS Enter The screen displays OK The modem is now in AT Recovery mode and remains in this state until a Save or power reset occurs While in this mode you can use AT commands to make any necessary changes to configuration options Keep in mind that the amp C command is changed to Forced On amp CO the amp M and a
38. 00000 Provide Administration modifiers Upon callback the user is prompted for the Password DTE password and types C2C3D2 AT SD1 C2C3D2 Store DTE password in index Table 4 3 the shows the AT commands and S registers location 1 used to configure security Table 4 3 1 of 3 3825Plus Security Commands SApppppppp Enter Administration Password Permits entry of the Administration Password This is required before security configuration options and passwords can be changed The Administration Password is eight characters long The default password active after a SR command is issued is on the last page of this manual That page may be removed for security purposes The password is 00000000 when the modem is shipped SA pppppppp Change Administration Password Changes the Administration Password The new Administration Password must be eight characters long and is limited to the characters 0 9 The new password remains in effect unless security is reset AT SR or another SA pppppppp command is issued SBi pppppppp Set Index for VF Plus DTE Password Changes the VF plus DTE type password in index ito password pppppppp The new VF password must be eight characters long and can consist of the characters 0 9 Index may be 1 through 20 SDi pppppp Set Index for DTE Password Changes the DTE type password in index j to password pppppp The new DTE password must be six characters long and can consist of the characte
39. 17 CONNECT 16800 Connection at 16 800 bps 19 1 CONNECT 300 Connection at 300 bps 20 10 CONNECT 2400 EC Connection at 2400 bps with error control 21 11 CONNECT 4800 EC Connection at 4800 bps with error control 22 12 CONNECT 9600 EC Connection at 9600 bps with error control 23 16 CONNECT 12000 EC Connection at 12 000 bps with error control 24 13 CONNECT 14400 EC Connection at 14 400 bps with error control 25 17 CONNECT 16800 EC Connection at 16 800 bps with error control 26 15 CONNECT 7200 EC Connection at 7200 bps with error control 27 5 CONNECT 1200 EC Connection at 1200 bps with error control 28 28 CONNECT 38400 Connection at 38 400 bps 29 14 CONNECT 19200 EC Connection at 19 200 bps with error control 30 30 CONNECT 57600 Connection at 57 600 bps 32 32 CONNECT 76800 Connection at 76 800 bps 34 34 CONNECT 115200 Connection at 115 200 bps 37 37 CONNECT 21600 Connection at 21 600 bps 38 38 CONNECT 24000 Connection at 24 000 bps 39 39 CONNECT 26400 Connection at 26 400 bps 40 40 CONNECT 28800 Connection at 28 800 bps 41 41 CONNECT 31200 Connection at 31 200 bps 42 42 CONNECT 33600 Connection at 33 600 bps Appears when the Extended Result Codes configuration option is enabled Appears when the Extended Result Codes configuration option is set for Use DTE Rate This displays the DTE data rate instead of the line rate Appears when the Extended Result Codes configuratio
40. 2 GB30 20 Country Specific Configuration Options Table F 1 2 of 4 Configuration Options by Country g 5 a 59 E 2 x gt SIE e S E s s c lt gt 9 lt cz x s s S S S 2 Strap DCP AT gt si z S SI 2 315 5 2 x Description Selection Command m A i m 9 Z Z l 5 5 NoAnswer 30 sec S7 30 l l V l l V l V V V V l V l Timeout S7 45 sec S7 45 F F F F F F l F l 60 sec S7 60 V l V V 90 sec not in S7 90 l l l l l l l V V V l F V l DCP menu 120 sec S7 120 l l l l V V l l V l Line Crnt Enab gt 8msec S65 0 l l l l l F l F l F l l l F Disc S65 Enab gt 90msc S65 1 F F F V FJ Vv V F F F V Disable S65 2 V V V F F V V I V F V V V V V No Carrier 2 sec S10 20 FoR Rs SE ick Ez TES p E Disc S10 5 sec S10 50 V V V V VI IV Vv WV Vl Vy V Vv v v 10 sec S10 100 V V V V VI IV VIV Vl Vy V Vv wv v 20 sec S10 200 V Vv V V V ViVi Vv VI IV V Disable S10 255 l V l V l V V V V V No Data Disc 2 min not in T2 V F V ViVi Vv VIV Vl Vy V V Vv v DCP menu 3 min not in T3 V V V F VI V VII VI V V V V DCP menu 10 min T10 V V V V V IV VIV Vl VMy V MV wv v 30 min T30 V V V V VNI IV VIV VIVIV MV wv v 60 min T60 V V V Vivi Vv NIV Vl
41. 25 A2 GB30 20 AT Commands and S Registers Table 4 1 11 14 3825Plus AT Commands amp Xn Transmit Clock Source Determines the source of timing for synchronous data transmitted from the DTE amp X Internal Modem provides transmit clock source for synchronous data Pin 15 amp X1 External Modem derives external transmit clock source provided on Pin 24 for synchronous data amp X2 Receive Clock Loop Modem derives transmit clock source from receive signal for synchronous data Pin 17 amp Zn zx Store Telephone Numbers Modem saves the telephone number and dial command modifiers if any entered for x up to 40 characters in length in Directory Location n 1 10 The DS command dials numbers stored this way For example the command AT amp Z1 5551234 stores the telephone number 555 1234 into directory location 1 To clear a telephone number from a memory location issue the amp Zn command without entering a telephone number 96 An Error Control Fallback Character This configuration option allows you to enter the ASCII value of the error control fallback character This provides the remote modem with the ability to end the error control link negotiating handshaking sequence by sending this character The modems will connect in Buffer mode no error control Online changes do not take effect until a disconnect occurs AN Where nis an ASCII value from 0 to 127 Factory default is 013 ASCII carri
42. 2bis Autorate Dial Line 4 24 S77 DTR Alarm Reporting 4 24 S78 V 32bis Automode 4 24 S80 No Data Disconnect Trigger Signal 4 25 S82 V 32bis Autorate Leased Line 4 25 S84 AT Command Mode 4 25 S85 Fast Disconnect 4 25 S88 Straps When Disconnected 4 25 S89 V 42 ARQ Window Size Increase 4 26 S90 DTE Rate VF Rate 4 26 S91 Cellular Enhancements 4 26 902 V 29 Train On Data 4 26 S94 Entry Wait Time 4 30 S95 VF Prompt Type 4 30 S96 DTE Password Entry Attempt Limit 4 30 S97 DTE Password Termination Character 4 31 S98 DTE Password Backspace Character 4 31 secondary channel 5 1 security Administration Password 4 29 clearing passwords 4 29 displaying passwords 4 29 DTE password 4 27 DTE type password 4 29 reset SR 4 29 selecting Answer Security type S68 4 30 VF and DTE 4 27 VF password 4 27 VF plus DTE 4 29 VF type password 4 29 VF with DTE 4 27 Index 4 November 1996 3825 A2 GB30 10 Index self test AT amp T9 4 12 failure B 1 power up 2 4 Send Break Control AT K 4 15 serial number 4 5 speaker on off 4 5 speaker volume 4 5 status indicators 1 2 stop test AT amp TO 4 12 Straps When Disconnected S88 4 25 synchronous leased line applications 2 6 T Tone dial 4 4 technical support B 1 telephone connection 2 3 telephone directory AT amp Z 4 13 Test Timeout S18 4 19 tests AT amp T 4 12 timeout for no answer S7 4 18
43. 4 VF XOFF XON standard for modems operating full duplex with asynchronous or synchronous data over dial networks PSTN or leased lines at 14 400 12 000 9600 7200 or 4800 bps A proprietary standard for modems operating full duplex with asynchronous or synchronous data over dial networks PSTN or leased lines at 19 200 or 16 800 bps The terbo is a pun on turbo and ter the next iteration of the V 32 recommendation had one been finalized would have been V 32ter A standard for modems operating full duplex with asynchronous or synchronous data over dial networks PSTN or two wire leased lines at 28 800 26 400 24 000 21 600 19 200 16 800 14 400 12 000 9600 7200 4800 or 2400 bps CCITT standard for error control protocol CCITT standard for data compression CCITT standard for local and remote diagnostic loopback tests Voice Frequency The part of the audio frequency range used to transmit voice sound usually 300 Hz to 3400 Hz This band is used by the modem for its modulated signal A character that tells the DTE or modem to stop transmitting data A character that tells the DTE or modem to start or resume transmitting data 3825 A2 GB30 20 November 1996 Glossary 7 Index Symbols hook flash 4 4 dial modifier Pause 4 4 Pause Time S8 4 18 return to command mode 4 4 quiet answer 4 4 Numbers 3825Plus modem AT commands 4 2 description 1 1 features 1 1
44. AUSE 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 REORIENT OR RELOCATE THE RECEIVING ANTENNA INCREASE THE SEPARATION BETWEEN THE EQUIPMENT AND RECEIVER CONNECT THE EQUIPMENT INTO AN OUTLET ON A CIRCUIT DIFFERENT FROM THAT TO WHICH THE RECEIVER IS CONNECTED CONSULT THE DEALER OR AN EXPERIENCED RADIO TV TECHNICIAN FOR HELP THE AUTHORITY TO OPERATE THIS EQUIPMENT IS CONDITIONED BY THE REQUIREMENT THAT NO MODIFICATIONS WILL BE MADE TO THE EQUIPMENT UNLESS THE CHANGES OR MODIFICATIONS ARE EXPRESSLY APPROVED BY PARADYNE CORPORATION TO COMPLY WITH FCC REQUIREMENTS A SHIELDED SERIAL DTE CABLE MUST BE USED WARNING TO USERS OF DIGITAL APPARATUS IN CANADA THIS CLASS B DIGITAL APPARATUS MEETS ALL REQUIREMENTS OF THE CANADIAN INTERFERENCE CAUSING EQUIPMENT REGULATIONS CET APPAREIL NUMERIQUE DE LA CLASSE B RESPECTE TOUTES LES EXIGENCES DU REGLEMENT SUR LE MATERIAL BROUILLEUR DU CANADA November 1996 3825 A2 GB30 20 Safety Instructions Government Requirements and Equipment Return Certain governments require that instructions pertaining to modem connection to the public switched telephone network be included in the installation and operation manual Specific instructions are listed in the following sections United States Not
45. DA 113 DTE External Clock 3825 A2 GB30 20 November 1996 COMSPHERE 3825Plus Modem JM8 to RJ11 Crossover Cable For 2 wire leased line connections to a JM8 network interface an 8 position to 6 position crossover cable see Figure D 1 must be used according to the following FCC requirements The RJ series of jacks should not be used for connecting data equipment to nonswitched private line networks specifically the service equivalents of the pre divestiture Series 3002 Category II Tariff 260 service There is a substantial difference in transmit levels permitted in the private line service and those permitted in the public switched network The industry standard is now an 8 pin keyed modular jack known as the USOC JM8 8 POSITION PLUG PIN NO RED on O ON YELLOW Bellcore Technical Reference TR EOP 000242 Issue 1 released May 1985 When ordering the installation of the USOC JMS specify the appropriate wiring options 1 2 wire operations 2 4 wire operations w o TEK leads 3 4 wire operations with TEK leads TEK leads are for loopback purposes A 50 pin version is being considered for multiple line connections A JM8 to RJ11 crossover cable may be ordered part number 125 0054 1531 6 POSITION PLUG PIN NO YELLOW 4091 13138 Figure D 1 Wiring Diagram 8 Position to 6 Position Crossover Cable D 2 November 1996 3825 A2 GB30 20
46. DTE a computer or a terminal with an available strings for unique applications RS 232 E serial port Ashielded RS 232 E cable with a male DB 25 3825 Plus Modem Package connector at one end to attach to the modem One of the following modular dial or leased After opening the modem s package check for damage network interfaces and verify that the following items are present RJ11C or RJ14C for dial applications e This user s guide JMS for 2 wire leased network interface 3825Plus modem For leased line applications a JM8 to RJ11 Power transformer crossover cable see Appendix D e One 6 position 4 wire modular cord e Fax software and documentation If any hardware components are damaged notify your sales representative Return equipment using the procedures described in the Government Requirements and Equipment Return section in the front of this book 3825 A2 GB30 20 November 1996 2 1 COMSPHERE 3825Plus Modem 3825Plus Installation The rear panel of the 3825P us modem Figure 2 1 has the following switches and connectors Before installing your standalone modem make sure your installation site is clean and well ventilated Allow space around the modem for installing cables and telephone cords and make sure the modem is located within reach of the ac power outlet The distance between your modem and DTE computer or terminal should not exceed 50 feet if DTE data rates exceed 19 200 bps
47. Line Feed Character Determines ASCII value used as the line feed character Enter a value from 0 127 for the line feed character The factory setting is 10 ASCII line feed S5 Backspace Character Determines ASCII value used as the backspace Backspace key This character moves the cursor to the left and erases the previous character Enter a value from 0 127 The factory setting is 08 ASCII backspace S6 Blind Dial Pause Determines how long in seconds the modem waits after going off hook before dialing a telephone number if using result code X1 or X3 Enter a value from 2 255 seconds The factory setting is 2 seconds for Belgium Denmark Finland France Netherlands North America Norway Singapore Sweden and Switzerland For Germany the factory setting is 3 seconds For Japan Turkey and UK the factory setting is 4 seconds See Appendix F S7 No Answer Timeout Determines how long in seconds an originating modem waits before abandoning a call when no answer tone is received Enter a value from 1 255 seconds The factory setting is 45 seconds for Belgium Finland France Japan North America Norway Singapore Sweden and Turkey 60 seconds for Denmark Germany Netherlands and UK and 90 seconds for Switzerland See Appendix F S8 Pause Time for the Dial Modifier Determines how long in seconds the modem pauses when it encounters a comma in the Dial command st
48. Number This character moves the cursor to the left and erases the previous character Enter a value from 0 127 The factory setting is 08 ASCII backspace 3825 A2 GB30 20 November 1996 4 31 ee a Qatuta a Made de REDDE f awqa a Overview The Remote Access feature of 3800Plus modems allows you to change configuration options and control test functions in a remote 3825Plus modem from any COMSPHERE 3800 3800Plus or 3900 Series modem with a Diagnostic Control Panel DCP Remote DCP access is only available when using V 34 V 32terbo V 32bis or V 32 modulation schemes Remote Access The following conditions must be met before using the Remote Access feature Aconnection using either the dial network or leased lines must be established e The Access from Remote configuration option must be enabled in the remote 3825Plus modem S55 0 e The Remote Access Password configuration option must be the same for both the local and remote modems S56 S59 Remote DCP access is accomplished using either the primary or secondary channel of the VF line Using the primary channel gives a much faster response time due to the higher data rate but it also interrupts data flow because primary data is stopped when Remote mode is active Once Remote mode is terminated the primary channel is automatically made available to data transmission Remote Access Unlike primary channel com
49. S55 Access from Remote Determines whether the 3825P us modem s configuration options can be accessed by a remote 3800 Series modem via a dial line or leased line connection Register has the following values 0 Enable 1 Disable The value of S55 is not affected by factory default templates S56 Remote Access Password Part 1 Register allows entry of the first pair leftmost of digits of a remote access password Any value from 00 to 99 is valid For example if the remote access password is 12345678 then S56 12 The value of S56 is not affected by factory default templates S57 Remote Access Password Part 2 Register allows entry of the second pair of digits of a remote access password Any value from 00 to 99 is valid The value of S57 is not affected by factory default templates S58 Remote Access Password Part 3 Register allows entry of the third pair of digits of a remote access password Any value from 00 to 99 is valid The value of S58 is not affected by factory default templates S59 Remote Access Password Part 4 Register allows entry of the fourth pair rightmost of digits of a remote access password Any value from 00 to 99 is valid The value of S59 is not affected by factory default templates S62 V 25bis Coding Identifies to the modem the type of coding used by the DTE while in V 25bis mode Register has the following values 0 ASCII 1 EBCDIC The factor
50. SWER NO CARRIER NO DIALTONE and ERROR The CFI response format is CFIxx Where xx is ET Engaged tone NS Number not stored CB Local DCE busy RT Time out on ring tone AB Abort call on time out NT Answer tone not detected FC Forbidden call ET is similar to the Call Failure Messages Busy Signal and Trunk Busy and the result code BUSY NS is similar to the Common Operational Message Invalid Number and the result code ERROR CB is similar to the Call Failure Messages Dial Line in Use and No Dial Test and the result code ERROR RT is similar to the Call Failure Message No Answer Tone and the result code NO CARRIER AB is similar to the Call Failure Messages No Dial Tone and No Dial DTR and the result code NO DIALTONE and ERROR NT is similar to the Call Failure Message No Quiet Answer and the result code NO ANSWER Delayed Call Indication DLC The DLC response is issued to the DTE if the modem is not currently allowed to call the number DLC is similar to the AT result code DELAYED The DLC response format is DLCxx Where xx is the delay before the number may be called in minutes E 2 November 1996 3825 A2 GB30 20 CCITT V 25bis Dialing Commands and Responses Call Connecting CNX The CNX response informs the DTE that the modem has connected to the remote modem CNX is similar to the AT result code CONNECT The CNX response format is CNX Call Answer Commands Call Answer commands disable o
51. TE Password Backspace Character S98 4 31 DTE Password Termination Character S97 4 31 DTE Rate in result codes 4 7 problems B 4 set to VF rate 4 26 DTR Alarm Reporting S77 4 24 make busy via S69 4 23 DTR Action AT amp D 4 8 November 1996 3825 A2 GB30 10 Index echo command 4 4 Identification ATD 4 5 EIA 232 E cable 2 1 indicator lights 1 2 EJA 232 E pin assignments D 1 initialization strings 2 6 Enhanced Throughput Cellular ETC 4 9 4 10 DATAKIT 2 6 Entry Wait Time S94 4 30 synchronous leased line applications 2 6 equipment provided by customer 2 1 V 25bis applications 2 6 equipment supplied 2 1 installation error codes result codes A 1 3825Plus modem 2 2 Error Control Fallback Character AT A 4 13 software 2 3 Error Control Mode AT N 4 15 Error Control Negotiate Buffer AT C 4 14 Escape Guard Time 4 1 4 18 escape sequence 4 1 4 17 J ETC Enhanced Throughput Cellular 4 10 4 26 extended result codes ATX 4 6 JM8 to RJ11 crossover cable 2 3 D 2 Leased Line Carrier On Level S48 4 21 Leased Line Rate 4 21 Leased Line Transmit Level S45 4 21 Leased Mode AT amp L 4 10 leased line connection 2 3 leased line problems B 2 LEDs front panel 1 2 Line Current Disconnect S65 4 23 load Active Operating area 4 7 LSD Control AT amp C 4 8 Fast Disconnect 4 25 fax FCLASS command 4 14 operation 3 1 problems and solutions B 5
52. V 21 300 bps Bell 212A 1200 bps Bell 103J 300 bps Leased Line Modulations Proprietary V 34 33 600 31 200 bps ITU T V 34 28 800 26 400 24 000 21 600 19 200 16 800 14 400 12 000 9600 7200 4800 2400 bps V 32terbo 19 200 16 800 bps CCITT V 32bis 14 400 12 000 9600 7200 4800 bps CCITT V 32 9600 4800 bps CCITT V 22bis 2400 bps Fax Modulations CCITT V 17 14 400 12 000 9600 7200 bps CCITT V 29 9600 7200 bps CCITT V 27ter 4800 2400 bps DTE RATES 115 200 76 800 57 600 38 400 28 800 19 200 14 400 12 000 9600 7200 4800 2400 1200 300 bps ERROR CONTROL CCITT V 42 MNP 4 2 DATA COMPRESSION CCITT V 42 bis MNP Class 5 3825 A2 GB30 20 November 1996 C 1 COMSPHERE 3825Plus EIA 232 E Pin Assignments JM8 to RJ11 Crossover Cable Pin Assignments EIA 232 E Pin Assignments Table D 1 lists the EIA 232 E pin assignments for the modem Table D 1 EIA 232 E Pin Assignments in Name T ai it CCITT i de Circuit Function 1 AA 101 Shield 2 TXD BA 103 DTE Transmit Data 3 RXD BB 104 DCE Receive Data 4 RTS CA 105 DTE Request to Send 5 CTS CB 106 DCE Clear to Send 6 DSR CC 107 DCE Data Set Ready 7 SG AB 102 Signal Ground 8 LSD CF 109 DCE Line Signal detect 15 TXC DB 114 DCE Transmit Clock 17 RXC DD 115 DCE Receive Clock 20 DTR CD 108 DTE Data Terminal Ready 22 R1 CE 125 DCE Ring Indicator 24 XTXC
53. Vy V V vw v Disable TO F V F V V F F F F F F F F F V Valid Invalid F Factory Default 3825 A2 GB30 20 November 1996 F 3 COMSPHERE 3825Plus Modem F 4 November 1996 3825 A2 GB30 20 Table F 1 3 of 4 Configuration Options by Country g 5 a 2 E s B 2 x gt al S c lt SEE ele E 8 3 3 Strap DCP AT gt s Z S s S 5 e z Description Selection Command m A m 9 Z Z Z 0 5 5 Dial TX Level PERMISSV amp J0 l l l l l l l F l V l l l amp In amp Jn 9 0 dBm amp IO l l l l l V l l l l l l V 1 4 amp I1 to 4 V V V V l V V V V 5 to 6 dBm amp I5 amp I6 V V V V V V V V V V V 7 dBm amp I7 F V V V V V V V V V V 8 dBm amp I8 V V V V V V V l V V V 9 dBm amp I9 V V V V V V V l V l V F F V 10 dBm 110 V V V F V V F V F F V V l F 11 dBm amp I11 V F F V l V V V V V V V V 12 to amp I12 to V V V V l V V V V V V V l V 13 dBm amp I13 14 dBm 8114 l V V V V V F V V 15 dBm amp 115 Country Specific Configuration Options Table F 1 4 of 4 Configuration Options by Country g 5 a 2 E s B 2 x gt SIE S lt SEE els E 8 3 3 Strap DCP AT 2
54. age return Bn BLn Modulation Data Rate Sets the modulation and maximum dial VF rate The same function can be performed with S register S41 the B and BL commands are provided for compatibility with environments where those commands are used The B300 and B1200 commands work in conjunction with the B CCITT Bell Mode command to determine modulation The B2400 through B33600 commands set the modem for V 34 or V 34 extended operation and the BL2400 through BL19200 commands set the modem for V 22bis V 32 V 32bis or V 32terbo operation B300 V 21 or Bell 103 max rate 300 bps 9981200 V 22 or Bell 212A max rate 1200 bps B2400 V 34 max rate 2400 bps B4800 V 34 max rate 4800 bps B7200 V 34 max rate 7200 bps B9600 V 34 max rate 9600 bps B12000 V 34 max rate 12 000 bps B14400 V 34 max rate 14 400 bps B16800 V 34 max rate 16 800 bps B19200 V 34 max rate 19 200 bps B21600 V 34 max rate 21 600 bps B24000 V 34 max rate 24 000bps B26400 V 34 max rate 26 400 bps B28800 V 34 max rate 28 800 bps B31200 V 34 extended max rate 31 200 bps B33600 V 34 extended max rate 33 600 bps BL2400 V 22bis max rate 2400 bps BL4800 V 32bis V 32 max rate 4800 bps BL7200 V 32bis max rate 7200 bps 96BL9600 V 32bis V 32 max rate 9600 bps BL12000 V 32bis max rate 12 000 bps BL14400 V 32bis max rate 14 400 bps BL16800
55. al Detect Control should be set for standard RS232 D operation Use the AT amp C1 command If your fax software requires that you change the configuration of your modem see the appropriate sections of Chapter 4 AT Commands and S Registers Your fax software uses AT commands to tell the modem what to do These commands and the replies your modem makes such as OK may be displayed on your computer terminal during fax operation but this depends on your software You do not have to issue AT commands yourself unless you use AT commands to configure the modem For more information about fax operation see the manual that came with your fax software 3825 A2 GB30 20 November 1996 3 1 AT Commands and S Registers ul ET 4 1 Operan TLS Si te sale tace alite oe 4 1 Switching Between Data Mode and Online Command Mode 4 1 Escape Sequence and Escape Guard Time 5 6 e er RD RES SP OE TR eee 4 1 Command QUITE tls eua he teo Ret E siti isi petu esr et stir qct 4 2 AT Command VASE scissor Sis dde eR ER eet eben hatuy eed dite ede deret ed 4 2 s Remister pay e bete eR US eU E Ete as 4 17 Schn RPM 4 27 MEME 4 27 imate Code a a Rand amik Sa 4 27 Answer Security ex Ee dee Rea we sna ER WA eR 4 27 Call AC SECU bao Sauna opsi 4 28 Securit
56. al and remote modems The process of recovering data from a modulated carrier wave A modifier used in the dial string that instructs the modem how to process a dialed telephone number 3825 A2 GB30 20 November 1996 Glossary 3 COMSPHERE 3825Plus Modem DTMF EIA EIA 232 E EIA RS 366 A EPROM error control escape sequence extended result codes fax modem fax software FCC full duplex Group III half duplex handshaking HDLC host ISO ITU T JM8 LCD Dual Tone Multi Frequency DTMF tones are the sounds produced by pressing the keys of a Touch Tone phone or by dialing a number with a modem using the ATDTn command Electronic Industries Association This organization provides standards for the data communications industry An Electronic Industries Association s standard defining the 25 position interface between data terminal equipment and data communications equipment An Electronic Industries Association s standard defining the 25 position interface between data terminal equipment and data communications automatic calling equipment Erasable programmable read only memory An algorithm used to correct data transmission errors Default setting is This sequence lets you switch your modem from Data mode to Command mode An asynchronous message in either numbers or words that includes VF data rate and error control information the modem sends to the DTE after executing or try
57. ame Size 4 14 C Error Control Negotiate Buffer 4 14 D CTS Control 4 14 G Modem to Modem Flow Control 4 14 K Break Buffer Control Send Break Control Break Forces Escape 4 15 N Error Control Mode 4 15 Q Flow Control of DTE and Modem 4 15 T No Data Disconnect Timer 4 16 X XON XOFF Passthrough Flow Control 4 16 A Answer Mode 4 3 B CCITT Bell Mode 4 3 D Dial 4 4 DS Dial Stored Number 4 4 E Command Echo 4 4 H Hook Switch Control 4 5 I identification 4 5 L Speaker Volume 4 5 M Speaker On Off 4 5 O Online Mode 4 5 Q Result Codes 4 6 recovering use of 2 5 Sn Display S register 4 6 Sn r Change S register 4 6 V Result Codes Format 4 6 3825 A2 GB30 20 November 1996 Index 1 COMSPHERE 3825Plus Modem X Extended Result Code Dial Tone Detect Busy Tone Detect 4 6 Y Long Space Disconnect 4 7 Z Reset and Load Active 4 7 AT amp T exclusive dialing 2 6 auto answer problems B 2 Automatic Firmware Download Center B 5 automode S78 4 24 autorate 576 Dial Line 4 24 S82 Leased Line 4 25 Bell modulations 4 3 D Blind Dial Pause S6 4 18 blind dialing 4 7 Break Buffer Control AT K 4 15 Break Forces Escape AT K 4 15 busy tone detect ATX 4 6 cables auxiliary D 2 JM8 to RJ11 crossover 2 3 D 2 required 2 1 supplied 2 1 Call Answer commands V 25bis E 3 Call Request commands V 25bis E 2 Call R
58. ates within a modulation when modems first connect A modem may automode to a different modulation than what it is configured for due to the limitations of the remote modem or automode to a lower rate due to unfavorable VF line conditions during connection To adjust to varying VF line conditions by changing the data rate to a higher or lower rate after connection The lowest rate the modem autorates to is 4800 bps the highest possible rate depends on the modulation the modems connected with In V 34 the modems may autorate asymmetrically A unit of signaling speed that is equal to the number of symbols per second This is not necessarily the same as bits per second although the terms are frequently interchanged Binary Synchronous Communications An IBM communications protocol that has become an industry standard It uses a defined set of control characters and control character sequences for synchronized transmission of binary coded data between stations in a data communications system A contraction of binary digit A bit which is the smallest unit of information represents a one or a zero sometimes called mark or space Bits per second Indicates the speed at which bits are transmitted across a data connection A storage device used to compensate for differences in the data flow rate when transmitting data from one device to another A sequence of successive bits usually eight handled as a unit in data transmission An advisor
59. before disconnecting This S register affects Answer Security only The timer is reset for each phase of the access authorization process 0 10 seconds 1 20 seconds 2 40 seconds 3 60 seconds The factory setting is 20 seconds S95 VF Prompt Type Determines how the modem prompts the remote dialer to enter a VF password For Quiet Answer to work Auto Answer Ring Number S0 must be set to at least 2 The value of this S register determines whether the dialer must precede the VF password with the or W dial modifier 0 Second Dial Tone 1 Quiet Answer The factory setting is Second Dial Tone S96 DTE Password Entry Attempt Limit Determines how many attempts to enter a valid DTE password the modem will accept before disconnecting 0 1 attempt 1 2 attempts 2 3 attempts 3 4 attempts 4 5 attempts The factory setting is 1 attempt no retries 4 30 November 1996 3825 A2 GB30 20 AT Commands and S Registers Table 4 3 3 of 3 3825Plus Security Commands S97 DTE Password Termination Character Determines ASCII value used to indicate the end of a password or Callback Directory Number entered by the remote user Enter a value from 0 127 for the command end character The factory setting is 13 ASCII carriage return 98 DTE Password Backspace Character Determines ASCII value used as the backspace Backspace key when entering a password or Callback Directory
60. ce to exit Data mode and the O command to return to Data mode Escape Sequence and Escape Guard Time The escape sequence is only issued when the modem is online and in Data mode The 3825Plus modem uses three consecutive plus characters as the escape sequence To change this value refer to S register S2 discussed later in Table 4 2 in the S Register List section To prevent the modem from interpreting an embedded in data as an escape sequence the Escape Guard Time value determines the idle time required before and after the escape sequence is issued The 3825Plus uses a 1 second pause as the Escape Guard Time To change this value refer to S register 12 discussed later in Table 4 2 in the S Register List section 3825 A2 GB30 20 November 1996 4 1 COMSPHERE 3825Plus Modem To enter online Command mode while in Data mode enter the following sequence TYPE Use the O command to return to Data mode from online Command mode Enter the following command TYPE ATO PRESS Enter Command Guidelines Review the following guidelines before using any AT Commands e The escape sequence is used to enter online Command mode from Data mode e The asynchronous character format for the AT command set must be one of the following 8 data bits no parity 1 stop bit 7 data bits no parity 2 stop bits 7 data bits parity 1 stop bit parity can be odd even mark or
61. clearly contains in a margin at the top or bottom of each transmitted page or on the first page of the transmission the date and time it is sent and an identification of the business or other entity or other individual sending the message and the telephone number of such business or other entity or individual In order to program this information follow the steps outlined in the manual supplied with your fax software An FCC compliant telephone cord with modular plugs may be provided with this equipment This equipment is designed to be connected to the telephone network or premises wiring using a compatible modular jack which is Part 68 compliant 3825 A2 GB30 20 November 1996 D COMSPHERE 3825Plus Modem Canada Notice To The Users Of The Canadian Public Switched Telephone Network 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 cer
62. combination of P pulse and T tone dial modifiers ATDP555 4321TW11223344 The requirement of the wait for quiet answer or W wait for second dial tone dial modifier depends on the value of S register S95 For more information about dial modifiers see the Dial Dn command DTE passwords are entered by the originating caller from the DTE keyboard They may consist of six characters and may be a combination of decimal digits 0 through 9 and the letters A through Z upper or lower case Up to 20 VF and DTE passwords can be stored in the password table in the memory of the 3825Plus modem Each password is indexed by a number 1 through 20 The index number is used when displaying or changing a password Originate Security An Originate Access password is entered by a local user to gain access to a local 3825Plus modem This password must be embedded in the AT dial command The password must be defined as a DTE_Entry type in the password table The following example describes how to enter an Originate Access security password TYPE ATD C2C3D2 T18135551234 PRESS Enter ATD is the AT dial command is the start and stop dial string command interrupt characters the Originate Access password must be enclosed by these characters C2C3D2 is the alphanumeric 6 character Originate Access password on the local modem T is the Tone DTMF dial modifier 18135551234 is the phone number of a remote modem Where
63. cter format can be 8 data bits no parity and 1 stop bit 7 data bits odd parity and 1 stop bit or 7 data bits even parity and stop bit TYPE AT amp F amp D1 amp S1 amp M234 amp W PRESS Enter For V 25bis bisync operation create an initialization string with the following commands Note that the character format must be 7 data bits odd parity and stop bit TYPE AT amp F amp D1 amp S1 amp M233 amp W PRESS Enter Synchronous Leased Line Applications For synchronous leased line operation create the following initialization string with the following commands TYPE AT amp F amp D1 amp S1 S44 n S45 n S82 n amp M1 amp W amp Ln amp W Where n is the value for the AT command Refer to either Table 4 1 or Table 4 2 in Chapter 4 to determine the best possible values for these commands PRESS Enter AT amp T Exclusive Dialing for DATAKIT Applications For AT amp T exclusive dialing for DATAKIT applications create an initialization string with the following commands TYPE AT amp F amp C5 amp D1 amp S3 amp RO D3 QI G1 S85 1 amp M235 amp W PRESS Enter 2 6 November 1996 3825 A2 GB30 20 OVERVIEW u ls Aceh Seta Pew ue red eR e pax Operatiol Overview The procedures for sending and receiving facsimile documents with your modem depend on the fax software you use This chapter does not contain specific procedures but rather information that may make it easier for yo
64. ctions between two points Also known as dial network One of two dialing methods in which telephone numbers are sent as pulses brief changes in voltage or current intensity across the telephone line Rotary telephones use pulse dialing 3825 A2 GB30 20 November 1996 Glossary 5 COMSPHERE 3825Plus Modem register remote loopback result code rotary serial transmission S registers Sync Dial synchronous transmission tone dialing training UL UNIX Dial USOC V 17 V 22 V 22bis V 25bis V 27ter V 29 V 32 A part of the modem s memory that contains values that determine the modem s operating characteristics A test that sends a signal to the remote modem to test the local modem the remote modem and the circuit between them An asynchronous message in either numbers or words that the modem sends to the DTE after executing or trying to execute a command A type of 6 position jack normally used with permissive dial networks and telephone sets A TELCO service whereby multiple lines to a customer premise share a common telephone number A way of transmitting data in which bits are sent sequentially one at a time Registers that contain information affecting modem operation S register commands must be preceded by the AT prefix A factory preset configuration area containing configuration options most often used in synchronous dial networks Data transmission that is
65. d a list of AT commands supported by the 3825Plus refer to Chapter 4 AT Command Set and S Registers 3825 A2 GB30 20 November 1996 2 3 COMSPHERE 3825Plus Modem Modem Power Up Once your modem is properly connected to the DTE dial or leased lines and ac outlet press the modem s rear panel power switch to the ON position The modem begins a power up self test in which all front panel LEDs momentarily light note that this also occurs on a reset of the modem and the Power LED remains ON The state NOTE If you have already changed certain configuration options you may have lost AT command control For example operating in Synchronous mode or disabling AT commands results in an inability to of other LEDs depends on your modem s configuration See Table 1 1 in Chapter 1 On initial power up the modem is in Command mode change configuration options To regain AT command control refer to the Recovering AT Commands section for these procedures To verify that the modem is connected and functioning properly enter the following TYPE AT To change a factory template perform the following steps for more information on changing factory templates PRESS Enter Return The screen displays OK If the modem does not return OK refer to Appendix B Troubleshooting using AT commands refer to Chapter 4 AT Commands and S Registers gt Procedure 1 Use the AT amp F amp W command t
66. d for UK 20 2 19 200 V 32terbo 21 16 800 V 32terbo 27 33 600 V 34 proprietary extension 28 31 200 V 34 proprietary extension 29 28 800 V 34 30 26 400 V 34 31 24 000 V 34 32 21 600 V 34 33 2 19 200 V 34 34 16 800 V 34 35 2 14 400 V 34 36 12 000 V 34 37 9600 V 34 38 7200 V 34 39 4800 V 34 40 2400 V 34 The factory setting is 28 800 V 34 S43 Train Time Register controls the modem s train time for V 34 V 32terbo V 32bis and V 32 mode Register has the following values 0 Long A long train is required for satellite links which have long roundtrip delays 12 Short The factory setting is Long 4 20 November 1996 3825 A2 GB30 20 AT Commands and S Registers Table 4 2 5 of 10 3825Plus S Registers S44 Leased Line Rate Determines the modem s highest data rate and modulation scheme for operation on 2 wire leased lines in either Answer or Originate mode Register has the following values shown in bps 1 14 400 V 32bis 2 12 000 V 32bis 3 9600 V 32bis 4 7200 V 32bis 5 4800 V 32bis 6 2400 V 22bis 18 19 200 V 32terbo 19 16 800 V 32terbo 25 2 33 600 V 34 proprietary extension 26 31 200 V 34 proprietary extension 27 28 800 V 34 28 26 400 V 34 29 24 000 V 34 30 21 600 V 34 31 219 200 V 34 32 16 800 V 34 33 14 400 V 34 34 12 000 V 34 35 9600 V 34
67. dem The user who dials this modem follows the phone number with a wait dial modifier and the VF password 12345678 VF and DTE Use commands like the following to configure the modem for VF and DTE Security AT SA00000000 Provide Administration Password AT SV 1 12345678 Store VF password in index location 1 AT SD2 xyz789 Store DTE password in index location 2 AT SB3 87654321 Store VF Plus DTE password in index location 3 ATS67 0 Set No Callback Security ATS68 2 Set VF and DTE Security ATS70 0 Set No Originate Security ATS94 to ATS98 Set to preferred choices AT amp W Save settings ATZ9 Reset modem 4 28 November 1996 3825 A2 GB30 20 AT Commands and S Registers User A dials this modem by following the phone ATS67 1 Set Callback Security number with a wait dial modifier and the VF password 12345678 and is not prompted for a DTE password ATS68 1 Set DTE Only Security User B dials this modem by following the phone number ATS70 0 Set No Originate Security with a wait dial modifier and the VF password 87654321 and is prompted for a DTE password User B responds by ATS94 to ATS98 Set to preferred choices typing xyz789 AT amp W Save settings Callback ATZ9 Reset modem The user who dials this modem is prompted for Callback Directory 1 through 10 or Number up to 40 digits including the T P W and comma dial Use commands like the following to configure the modem for Callback Security AT SA000
68. djusted according to the ETC1 1 specification amp Jn Dial Transmit Type Sets the power output level of the transmit signal over dial lines amp J0 Permissive 9 dBm Valid only for North America amp Ln Leased Mode Sets the modem for 2 wire leased line operation in Answer mode or in Originate mode amp LO Disables leased line operation amp L1 2 wire originate leased line operation amp L3 2 wire answer leased line operation The amp L command will cause the modem to reset before entering or exiting Leased Line mode Therefore it must be entered as the last command in an initialization string WARNING Do not configure the modem for leased line operation if the modem is connected to the PSTN 4 10 November 1996 3825 A2 GB30 20 AT Commands and S Registers Table 4 1 9 of 14 3825Plus AT Commands amp Mn or amp Qn Async Sync Mode and DTE Dialer Type Sets the modem for either asynchronous or synchronous operation and selects the type of dialing method the modem uses amp M amp M0 amp Q amp Q0 Modem operates in Asynchronous mode and uses AT Command protocol amp M1 amp M3 amp Q1 amp Q3 Modem operates in Synchronous mode and uses AT Command protocol amp M2 amp Q2 Modem operates in Synchronous mode and dials the telephone number stored in directory location 1 when the DTR signal turns Off and then ON amp M231 amp Q231 Modem operates in Asynchronous mode and disabl
69. dyne Corporation reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of Paradyne Corporation to notify any person of such revision or changes A November 1996 3825 A2 GB30 20 Safety Instructions Important Safety Instructions Read and follow all warning notices and instructions marked on the product or included in the manual Slots and openings in the cabinet are provided for ventilation To ensure reliable operation of the product and to protect it from overheating these slots and openings must not be blocked or covered Do not allow anything to rest on the power cord and do not locate the product where persons will walk on the power cord Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous high voltage points or other risks Refer all servicing to qualified service personnel General purpose cables are provided with this product Special cables which may be required by the regulatory inspection authority for the installation site are the responsibility of the customer When installed in the final configuration the product must comply with the applicable Safety Standards and regulatory requirements of the country in which it is installed If necessary consult with the appropriate regulatory agencies and inspection authorities to ensure compliance Input power to this product must be provided by one of
70. e 4 1 7 of 14 3825Plus AT Commands Option _ Maximum Frame Size Error Control Mode Auto Answer Rings No Answer Timeout No Carrier Disconnect V 32bis Train V 32bis Autorate V 42 ARQ Window Size Cellular Enhancements Option _ Transmit Level Error Control Mode No Answer Timeout No Carrier Disconnect V 32bis Train V 42 ARQ Window Size Cellular Enhancements amp Fn Select Factory Default Configuration Options Loads factory configuration options into the Active Operating area The amp F5 and amp F6 options invoke the Enhanced Throughput Cellular ETC feature amp FO Async Dial amp F3 UNIX Dial amp F5 Cellular Mobile amp F6 Cellular PSTN If your modem is attached to a cellular telephone use the amp F5 command to configure the modem for cellular communications amp F5 sets the following configuration options AT Command Value A4 N4 S0 3 7 120 910 100 S43 1 976 3 S89 9 S91 1 If your modem is attached to a normal dial telephone line but sometimes communicates with a modem that is attached to a cellular phone use the amp F6 command amp F6 Cellular PSTN sets the following configuration options AT Command Value 8199 N4 9 120 910 100 S43 1 S89 9 S91 1 amp G0 and Turkey amp G1 550 Hz amp G2 amp Gn V 22bis Guard Tone Determines whether the V 22bis guard tone is disabled set to 550 Hz or set to 1800 Hz Disable Default for Denmark Finland Germa
71. ects low volume L1 Selects low volume L2 Selects medium volume L3 Selects high volume Mn Speaker On Off Turns speaker on and off 3825 A2 GB30 20 November 1996 4 5 COMSPHERE 3825Plus Modem Table 4 1 4 of 14 3825Plus AT Commands Qn Result Codes Result codes are informational messages such as Connect and Ring sent from the modem and displayed on the asynchronous DTE terminal Refer to Table A 1 for a list of result codes Q Q0 Enables modem to send result codes to the DTE Q1 Disables modem from sending result codes to the DTE Q2 Enables in Originate mode only for modem to send result codes to the DTE Required for most UNIX applications Sn r Change S Register Changes the contents of an S register where n is the S register and r is the new value Sn Display S Register Displays the value of an S register where n is the S register number T Tone Dial Sets the modem for Tone DTMF dial mode See D command Vn Result Codes Format Controls whether or not result codes appear as words or as numeric codes Some DTEs do not recognize result codes as words therefore numbers are required The Numbers 2 format is required for some modem pooling applications Refer to Table A 1 for a list of result codes V VO Displays result codes in Number 1 format digits V1 Displays result codes as text V2 Displays result codes in Number 2 format digits Xn Extend
72. ed Result Code Dial Tone Detect and Busy Tone Detect The Xn command sets three configuration options simultaneously Extended Dial Tone Busy Tone Result Code Detect Detect X0 Disable Disable Disable X1 Enable Disable Disable X2 Enable Enable Disable x3 Enable Disable Enable X4 Enable Enable Enable X5 Add EC Enable Enable X6 Add V42 MNP Enable Enable X7 Use DTE Rate Enable Enable EXTENDED RESULT CODE Informational messages such as VF line connect rate and Error Control are displayed with the result codes Disable Displays basic result codes OK CONNECT RING NO CARRIER and ERROR Enable Displays basic result codes in addition to the CONNECT rate message for example CONNECT 14400 4 6 November 1996 3825 A2 GB30 20 AT Commands and S Registers Table 4 1 5 of 14 3825Plus AT Commands Xn continued Add EC If error control is negotiated attaches the EC suffix to the CONNECT rate message Add V42 MNP Attaches the V42b V42 MNP5 MNP4 MNP3 MNP2 or NoEC suffix to the CONNECT rate message Use DTE Rate Displays DTE data rate instead of line CONNECT rate message DIAL TONE DETECT Sets the modem for dial tone detection enable or blind dialing disable Disable Sets the modem for blind dialing This is invalid for Belgium Denmark France Netherlands Norway Sweden and Switzerland See Appendix F Enable Sets the modem for dial tone detect BUSY TONE DETECT Sets the modem
73. em to go off hook and attempts to establish a connection without waiting for a ring B CCITT Bell Mode Determines the protocol used if the dial line rate is set to 300 or 1200 bps It has no effect if the rate is set to another value See B B BO V 21 or V 22 300 or 1200 bps B1 Bell 103 or Bell 212A 300 or 1200 bps 3825 A2 GB30 20 November 1996 4 3 COMSPHERE 3825Plus Modem Table 4 1 2 of 14 3825Plus AT Commands Dn Dial Begins the dialing sequence The dial string n modifiers and telephone number is entered after the D command Any digit 0 9 4 A B C D may be dialed as a DTMF tone Only the digits 0 9 can be dialed in Pulse Dial mode The following example shows how to dial through a PBX The dial string consists of the command string and the telephone number ATDT9 5551234 Command Telephone String Number Dial String Modifiers include the following parameters T Tone DTMF dial Any digit 0 9 4 A B C or D can be dialed as tone P Pulse dial Only the digits 0 9 can be dialed in Pulse Dial mode This is invalid in Denmark Norway and Sweden See Appendix F NOTE Once a dialing method tone or pulse has been specified it will remain active only until the end of that dial string The factory setting is Tone dial Pause Causes the modem to pause before processing the next character in the dial string The length of this pause is determined by t
74. eration over dial or two wire leased line networks The 3825Plus modem s software defineability allows you to add enhancements and new features as they become available with no further investment in hardware no on site personnel and minimal downtime High speed data transfer and reliable throughput at data rates as high as 33 600 bps over dial lines is made possible by employing the latest techniques in modem modulations and using CCITT V 42bis MNP Class 5 data compression and CCITT V 42 MNP error correction In addition to fast line speeds the modem can send data to the DTE at speeds as high as 115 200 bps The modem s compatibility with a number of dialing methods and protocols such as asynchronous AT commands and CCITT V 25bis dialing permits the 3825Plus to be used in a variety of applications and environments while also allowing control over modem configuration dialing and diagnostics The modem offers two preset factory configurations containing the most often used modem settings These factory presets provide quick configuration for any asynchronous or UNIX hardware based dial environment Introduction 1 1 Features The 3825Plus modem has a wide variety of features including Dial Line Modulations Proprietary extensions of V 34 33 600 and 31 200 bps ITU T V 34 up to 28 800 bps V 32terbo 19 200 and 16 800 bps CCITT V 32bis up to 14 400 bps V 32 up to 9600 bps V 22bis 2400 bps
75. es any type of AT command dialing protocol amp M232 amp Q232 Modem operates in Asynchronous mode and uses V 25bis asynchronous dialing amp M233 amp Q233 Modem operates in Synchronous mode and uses V 25bis bisynchronous dialing amp M234 amp Q234 Modem operates in Synchronous mode and uses V 25bis HDLC dialing amp M235 amp Q235 Modem operates in Asynchronous mode and enables a subset of the AT amp T command set This is required for AT amp T DATAKIT dial out applications The amp M2 amp M231 through amp M235 amp Q2 and Q231 through Q235 commands disable the use of AT commands and force the modem into Dumb mode The only way to regain control of the modem is to recover AT Commands as described in the Recovering AT Commands section in Chapter 2 amp Rn RTS Action Request to Send RTS is a signal from the DTE to the modem indicating the DTE has data to send to the modem 8 amp RO Standard RS232 DTE controls RTS to the modem in normal EIA 232 D operation RTS must be ON for the DTE to transmit to the modem amp R1 Ignores RTS Modem assumes RTS is always ON Use this selection when the DTE does not provide RTS to the modem amp R2 Simulated Control Carrier RTS input controls the remote modem s LSD signal This is used for DTEs that require Line Signal Detect LSD to toggle ON and Off to simulate half duplex operation 3825 A2 GB30 20 November 1996 4 11 COMSPHERE 3825Plus Modem Table 4 1
76. esponse V 25bis E 2 Call Waiting 4 4 Callback Security S67 4 30 CCITT Bell Mode B command 4 3 cellular enhancements amp F5 and amp F6 commands 4 9 S91 Register 4 26 cellular transmit level 4 10 change S register 4 6 character format 4 2 problems B 2 B 4 Clear Error Buffer F 4 7 clock source AT amp X 4 13 Clone Remote amp amp P1 4 8 command echo 4 4 B 4 Command mode 4 1 Command Response V 25bis E 4 compression 5 4 14 V 42bis 4 7 COMSPHERE 6700 or 6800 Series NMS 1 2 configuration options factory default 2 4 factory defaults AT amp F 4 9 loading ATZ 4 7 loading when disconnected S88 4 25 saving AT amp W 4 12 selecting 2 4 viewing AT amp V 4 12 connect messages A 1 connect problems B 2 B 3 copy firmware to remote 4 8 CTS Control D 4 14 Data mode 4 1 Data Rate B 4 13 data rates supported C 1 DATAKIT applications 2 6 4 11 Dial ATD 4 4 dial command modifiers 4 4 Dial Line Rate S41 4 20 Dial Stored Number ATDS 4 4 dial tone detect ATX 4 6 dial tone wait 4 4 dial line connection 2 3 dialing problems B 3 Disconnect Delay Receive Buffer 4 19 Transmit Buffer 4 22 display configuration options 4 12 S register 4 6 download failure B 5 download latest firmware B 5 download only mode 1 3 4 8 DSR Control AT amp S 4 12 DTE connection 2 3 DTE password SD command 4 29 described 4 27 DTE Password Attempt Limit S96 4 30 D
77. figuration area are loaded to Active Operating when the modem disconnects Register has the following values 0 or 231 No Change 1 or 232 Reload The value of S88 is No Change when the modem is shipped The value of S88 is not affected by factory default templates 3825 A2 GB30 20 November 1996 4 25 COMSPHERE 3825Plus Modem Table 4 2 10 of 10 3825 Plus S Registers S89 V 42 ARQ Window Size Increase Register allows the V 42 Automatic Request for Transmission ARQ window size to be set to a value from 6 to 15 frames to accommodate satellite delays Register has the following values 0 Automatic Adjust 6 15 frames 1 7 frames 2 8 frames 3 9 frames 9 15 frames This command applies only to connections made using V 42bis data compression or V 42 error control The factory setting is Automatic Adjust S90 DTE Rate VF Rate Register forces the DTE computer data rate to be equal to the VF telephone line data rate Register has the following values 0 Disable 1 Enable The factory setting is Disable 91 Cellular Enhancements Register determines whether parameters are set to improve performance over a cellular link Should be enabled when the remote modem is using a cellular connection Register has the following values 0 Disable 1 Enable The factory setting is Disable amp F5 and amp F6 set S91 to Enable 93 RJ11 Cellular Adapt Regis
78. he following exceptions Change Directory is the only function available under the Call Setup branch Self Test and Local Analog Loop do not appear under the Test branch when using the secondary channel When using the primary channel the Test branch does not appear In the Control branch Make Busy is not available The Security Branch is not available Exit Remote replaces Remote on the local modem s LCD To return to local modem operation select ExitRem Any changes made to configuration options while using the Remote branch are not saved until you exit the Remote branch The following conditions can cause Remote Access to fail The local modem is not able to communicate with the remote modem because of a poor dial network or leased line connection or the remote modem is not a 3825Plus modem If this is the case the status message No Response appears on the LCD If a connection is established but the remote modem s Access from Remote configuration option is disabled then the status message Access Disabled appears on the LCD If a connection is established but the wrong password is stored the status message Password Invalid appears on the LCD Call_Setup 495 13082a 01 5 2 November 1996 3825 A2 GB30 20 Result Codes Aus ee pa u Dau Tees a Tk SS A hea Overview Table A 1 lists all the result codes 3825Plus modems may send to the DTE Result codes can be n
79. he value held in S register S8 the Pause Time configuration option W Wait for dial tone Modem waits for a second dial tone before processing the dial string This can be the initial dial tone or a second tone received when dialing through a tandem PBX for example 9W555 6789 or when invoking special features for example 70 W555 6789 where 70 is the local telephone company command that disables Call Waiting R Reverse Dial mode Causes the originating modem to send out an answertone once it no longer detects ringback Ringback is the ring you hear at the originating site when making a call The R parameter must be the last character in the dial string For correct operation at least one ringback must be detected therefore the remote modem should be configured to answer on the second ring or subsequent rings 9 Quiet answer Wait for five seconds of silence after dialing the number If the silence is not detected the modem sends a NO ANSWER result to the DTE Hook flash This causes the modem to go on hook for 0 5 seconds then return to off hook Return to Command mode Modem returns to Command mode after dialing a number without disconnecting the call This is useful when the number exceeds 40 characters or when the wait time between parts of a dial string is unknown Space and These characters are ignored by the dial string and can be included in the dial string to enhance readability DSzn
80. ice To Users Of The Public Switched Telephone Network 10 This equipment complies with Part 68 of the FCC rules On the equipment is a label that contains among other information the FCC registration number and ringer equivalence number REN for this equipment The label is located on the bottom of your modem Page of this manual contains the Universal Service Order Codes USOC associated with the services on which the equipment is to be connected The Ringer Equivalence REN is used to determine the quantity of devices which may be connected to the telephone line Excessive RENSs on the telephone line may result in the devices not ringing in response to an incoming call In most but not all areas the sum of the RENSs should not exceed five 5 0 To be certain of the number of devices that may be connected to the line as determined by the total RENs contact the telephone company to determine the maximum RENs for the calling area If the modem causes harm to the telephone network the telephone company will notify you in advance that temporary discontinuance of service may be required But if advance notice is not practical the telephone company will notify the customer as soon as possible Also you will be advised of your right to file a complaint with the FCC if you believe it is necessary The telephone company may make changes in its facilities equipment operations or procedures that could affect the operation of the equipment
81. ing to execute a command A modem capable of emulating some features of a fax machine Working under the control of fax software a fax modem can communicate with a fax machine or with another fax modem A program or system of programs installed on a computer that allow a fax modem to send and receive facsimile images Federal Communications Commission Board of Commissioners that regulates all interstate and foreign electrical communication systems that originate from the United States Simultaneous two way communications A fax standard that specifies a rate of transmission of about one page per minute Two way data communications allowed in only one direction at a time The exchange of predetermined codes and signals tones to establish a connection between two modems High level Data Link Control A communications protocol defined by ISO A computer attached to a network that shares its information and devices with the rest of the network A unit of frequency hertz that equals one cycle per second International Organization for Standardization The Telecommunications Standardization Sector of the International Telecommunications Union an advisory committee established by the United Nations to recommend communications standards and policies Before March 1993 it was called CCITT A jack used for leased line networks Pins 1 and 2 are the transmit pair and Pins 7 and 8 are the receive pair Liquid Crystal Display The device
82. ing using DTEs in either Asynchronous bisynchronous or HDLC operating mode The 3825Plus modem supports V 25bis request and answer commands that initiate and cancel dialing program commands that allow you to create and enter telephone numbers to memory and list commands that display all telephone numbers stored in directory locations As commands are entered from the DTE the 3825Plus modem issues a response to the DTE which indicates if the call failed or connected or if the command is valid or invalid The following section discusses those V 25bis commands supported by the 3825Plus modem and the responses to those commands Tables E 1 and E 2 in the Command Response section list the V 25bis command and response and the analogous AT command NOTE The 3825 Plus modem must be configured for V 25bis dialing Refer to the amp Mn or amp Qn commands listed in Chapter 4 The character format for Asynchronous Dialing mode is 7 data bits even parity and 1 stop bit The character format for bisynchronous Dialing mode is 7 data bits odd parity and 1 stop bit The character format for HDLC Dialing mode can be 8 data bits no parity and 1 stop bit 7 data bits odd parity and 1 stop bit or 7 data bits even parity and stop bit Character format is determined by the DTE The modem detects this format when an AT prefix is entered from the DTE 3825 A2 GB30 20 November 1996 E 1 COMSPHERE 3825Plus Modem
83. ion of the JM8 to RJ11C crossover cable required can be found in Appendix D p Procedure 1 Insert the 6 position 4 conductor modular plug into the jack labeled LINE Figure 2 1 2 Insert the other end of the modular cord into the leased line network interface Telephone Connection Use the following procedure to connect the modem to a single line or two line telephone gt Procedure 1 Insert the 6 position 4 conductor modular plug into the jack labeled PHONE 2 Insert the other end of the modular cord into the telephone AC Power Transformer Connection Use the following procedure to connect the modem to an ac power outlet gt Procedure 1 Make sure the modem s power switch is in the Off position 2 Insert the power transformer s cylindrical connector into the modem s rear panel ac power receptacle labeled POWER Figure 2 1 3 Insert the power transformer into an ac power outlet Communications Software Installation A personal computer commands and controls a dial modem through communications software This software which is installed on the PC uses the AT command set to send instructions to the modem A dumb asynchronous terminal however does not require this software since it can directly send AT commands The 3825Plus can be used with any major communications software Refer to your software s user s guide for installation procedures For an overview of how to use AT commands an
84. isable 2 Call Connect Only 3 Call Progress Only The value of S66 is not affected by factory default templates S67 see Security at the end of this chapter S68 see Security at the end of this chapter S69 Make Busy Via DTR Determines if the modem goes off hook busy when DTR is Off In the UK the default value cannot be modified WARNING The Make Busy function must be used only when the modem is connected to a PBX Register has the following values 0 Disable 1 Enable The factory setting is Disable S70 see Security at the end of this chapter 3825 A2 GB30 20 November 1996 4 23 COMSPHERE 3825Plus Modem Table 4 2 8 of 10 3825 Plus S Registers S74 Network Position Identification Register identifies each modem as either a control or tributary modem Register has the following values 0 Tributary 1 Control The factory setting is Tributary 75 Network Management Address Register determines the modem s network address This address is used when accessing the modem from the NMS Enter a value from 0 network address 001 to 255 network address 256 The value of S75 is 255 when the modem is shipped The value of S75 is not affected by factory default templates 76 Autorate Dial Line Determines if the Autorate function is used on dial lines when connected in V 32bis V 34terbo or V 34 mode Autorate allows the modem to adjust li
85. king process with the calling modem This code American Standard Code for Information Interchange is a 7 bit code which establishes compatibility between data services ASCII is the standard for data transmission over telephone lines The ASCII code consists of 32 control characters nondisplayed and 96 displayed characters In V 34 the ability of a device to transmit at a different rate than it receives A factory preset configuration area containing the configuration options most often used in asynchronous dial networks A data transmission that is synchronized by a transmission start bit at the beginning of a character five to eight bits and one or more stop bits at the end A group of commands issued from an asynchronous DTE that allow control of the modem while in Command mode All commands must begin with the characters AT and end with a carriage return A prefix issued before every AT command except A and which identifies the DTE s data rate parity and character length To automatically determine the asynchronous DTE data rate A capability to respond to a call received over a dial line 3825 A2 GB30 20 November 1996 Glossary 1 COMSPHERE 3825Plus Modem automode autorate baud Bisync bit bps buffer byte CCITT character character echo Class 1 fax Class 2 fax command line Command mode configuration option connector CSA CTS To change modulations or r
86. l if there is no activity for a certain period See the T command Register has the following values 0 Transmit or Receive 1 Transmit only 2 Receive only 3 Transmit and Receive The factory setting is 3 S82 Autorate Leased Line Determines if the Autorate function is used on leased lines when connected in V 32bis V 32terbo or V 34 mode Autorate allows the modem to adjust line speed due to varying VF line quality Register has the following values 0 Enable 1 Disable The factory setting is Enable S84 AT Command Mode Determines how the modem responds to valid and invalid AT commands The selections No ERROR and No Strap or ERROR permit installation into applications that are customized for a different modem Register has the following values 0 Normal 1 No ERROR The modem executes all valid commands ignores invalid commands and never issues an ERROR message 2 No Strap or ERROR The modem ignores all configuration commands but always issues an OK response message The value of S84 is Normal when the modem is shipped The value of S84 is not affected by factory default templates S85 Fast Disconnect Allows the modem to disconnect immediately after receiving a disconnect command Register has the following values 0 Disable 1 Enable The factory setting is Disable S88 Straps When Disconnected Determines if configuration options in the Active Saved con
87. mp Q commands are changed to Async mode with AT commands enabled amp M0 and amp QO0 and the amp S command is changed to Forced On amp SO If these settings are not appropriate then reset them to a desired choice before exiting AT Recovery mode 3825 A2 GB30 20 November 1996 2 5 COMSPHERE 3825Plus Modem 3 To save changes use the amp W command TYPE AT amp Wn Where nis one of the following storage areas 0 for Active Saved 1 for Customer 1 2 for Customer 2 PRESS Enter The modem exits AT Recovery mode and returns to its previous application environment Only the Active Saved area affects modem operation To move a Customer area to Active Saved use the Z command See Chapter 4 for more information Initialization Strings An initialization string contains several AT commands that are entered at once to program the modem for a specific application The following initialization strings identify essential AT commands that directly impact modem operation for a particular application If you need to modify these strings for your application make sure additional commands are inserted somewhere in the middle of the initialization string Whenever an amp L command is used it must appear at the end of an initialization string V 25bis Applications For V 25bis HDLC High level Data Link Control dial line operation create an initialization string with the following commands Note that the chara
88. munications the secondary channel operates at a slower data rate and does not interrupt data flow To access the Remote branch of the COMSPHERE modem menu structure make the following selections Press the key until Remote appears Select Remote Online 28 8 A Control CA lt an m Remote To operate over the secondary channel press any function key to select the secondary channel ERA Channel gt a Secondary A 5 5 To operate over the primary channel press the key until Prim appears and press any function key Select Channel a Prim data blckd CA 89 5 5 3825 A2 GB30 20 November 1996 5 1 COMSPHERE 3825Plus Modem NOTE If a connection is not established between a local COMSPHERE modem and a remote 3825Plus modem the LCD displays Remote Mode Fail No Circuit Press any key to return to the Top Level menu and dial again If the remote modem accepts the password and the entry is successful the Top Level menu of the remote modem appears on the local modem s LCD An f appears in the upper right hand corner indicating that what is displayed on your LCD is actually the Top Level menu of the remote 3825Plus modem Online 28 8 n ZS eue m x lt par re The Top Level menu of the remote 3825Plus modem is similar to the local COMSPHERE modem with t
89. n option G GO Disable G1 Enable 4 14 November 1996 3825 A2 GB30 20 AT Commands and S Registers Table 4 1 13 of 14 3825Plus AT Commands Kn Buffer Control Send Break Control Break Forces Escape The Kn command sets three configuration options simultaneously Break Send Break Buffer Break Forces Control Control Escape KO Discard Data Break First Enable K1 Discard Data Break First Disable K2 Keep Data Break First Enable K3 Keep Data Break First Disable K4 Keep Data Data First Enable K5 Keep Data Data First Disable K6 Discard Break Not Applicable Disable BREAK BUFFER CONTROL Determines if data stored in the modem s buffer is saved or discarded when the DTE issues a break sequence SEND BREAK CONTROL Determines what is sent from the modem first data or break if a break sequence is sent from the DTE BREAK FORCES ESCAPE Determines whether or not the modem should enter Command mode when it receives a break character from the DTE n Error Control Mode Determines the type of error control used by the modem In most cases V42 MNPorBfr is the best choice If V 42bis and MNP are enabled then the modem uses the following priority for error control negotiation V 42bis V 42 MNP 5 and below Online changes do not take effect until a disconnect occurs NO Buffer Mode N1 Direct Mode N2 MNP or Disconnect N3 MNP or Buffer N4 V 42 MNP or Di
90. n option is set for Add EC If this configuration option is set for Add V42 MNP then V42b V42 MNP5 MNP4 MNP3 MNP2 or NoEC appears For either suffix type if the modulation is V 34 RX xxxxx TX xxxxx is appended showing the VF rates in both directions 3825 A2 GB30 20 November 1996 COMSPHERE 3825Plus Modem Table A 1 3 of 3 Result Codes Numbers 1 Numbers 2 Word Description 43 43 CONNECT 21600 EC Connection at 21 600 bps with error control 44 44 CONNECT 24000 EC Connection at 24 000 bps with error control 45 45 CONNECT 26400 EC Connection at 26 400 bps with error control 46 46 CONNECT 28800 EC Connection at 28 800 bps with error control 47 47 CONNECT 31200 EC Connection at 31 200 bps with error control 48 48 CONNECT 33600 EC Connection at 33 600 bps with error control 77 77 FORBIDDEN Forbidden number 78 78 DELAYED Delayed number Appears when the Extended Result Codes configuration option is set for Add EC If this configuration option is set for Add V42 MNP then V42b V42 MNP5 MNP4 MNP3 MNP2 or NoEC appears For either suffix type if the modulation is V 34 RX xxxxx TX xxxxx is appended showing the VF rates in both directions A 4 November 1996 3825 A2 GB30 20 Troubleshooting Automatic Firmware Download Download Failure ua eem Overview This appendix points o
91. ne speed due to varying VF line quality Register has the following values 0 Enable 1 Disable 2 Start at 4800 bps V 32bis only 3 Start at 9600 bps V 32bis only The factory setting is enable S77 DTR Alarm Reporting Register determines whether an alarm is sent to the 6800 Series Network Management System controller when the DTR signal has been Off for more than 10 seconds Register has the following values 0 Disable 1 Enable The value of S77 is Disable when the modem is shipped The value of S77 is not affected by factory default templates S78 Automode Dial Line If enabled automode permits the modem to automatically connect to a remote modem using any supported modulation scheme If disabled the modem only supports the modulation scheme selected by the S41 register Dial Line Rate If the modem is in a modem pool attached to a System 85 Private Branch Exchange PBX S78 should be set to 2 This modifies parameters used during connection to the PBX Register has the following values 0 Enable 1 Disable 2 System 85 The factory setting is Enable 4 24 November 1996 3825 A2 GB30 20 AT Commands and S Registers Table 4 2 9 of 10 3825Plus S Registers S80 No Data Disconnect Trigger Signal Register determines whether Pin 2 transmit data or Pin 3 receive data of the modem s RS 232 serial interface is monitored so that the modem can disconnect the cal
92. nline Command mode Online Command mode is established with the escape sequence The initial response to the command is the message Cloning Remote or one of several error messages such as NO CIRCUIT INCOMPATIBLE MODULATION REMOTE ACCESS DISABLED INVALID REMOTE PASSWORD If the cloning is successful the messages Clone Completed and OK are sent to the DTE If the cloning fails the ERROR result code is preceded by an explanatory message Clone Aborted Clone Failed COMM Clone Failed SEQ Clone Failed Incompat Config In the event of an error the remote modem is placed in download only mode signaled by the slow flash of its MR Pwr LED Contact Technical Support if you are unable to complete the cloning amp Cn LSD Control Line Signal Detect LSD is a signal indicating that the carrier signal is being received from the remote modem It is normally turned Off to the DTE when the power level of the received carrier signal drops below the carrier detect threshold amp CO Forced On LSD ON at all times amp C1 Standard RS232 LSD is ON when the remote modem s carrier signal is detected LSD is Off when carrier signal is not detected amp C2 Wink When Disconnect LSD normally forced ON turns Off for approximately one second upon disconnecting amp C3 Follows DTR State of LSD follows state of DTR amp C4 Simulated Control Carrier State of LSD follows state of remote modem s RTS via V 13 simulated control carrie
93. ny Netherlands North America Norway Singapore Sweden 1800 Hz Default for Belgium France Japan Switzerland and UK See Appendix F 3825 A2 GB30 20 November 1996 4 9 COMSPHERE 3825Plus Modem Table 4 1 8 of 14 3825Plus AT Commands amp In Dial Transmit Level for Cellular Auto When Dial Transmit Level Type is set to Permissive amp In sets Dial Transmit Level to a value between 10 and 32 dBm amp I99 and amp 1100 causes the level to be varied automatically according to conditions for Enhanced Throughput Cellular ETC operation amp JO overrides this command and is the default for North America and Singapore See Appendix F amp IO 0 dBm 0 dBm to 9 dBm invalid for North America and Singapore amp I7 7 dBm Default for Belgium amp I8 8 dBm amp I9 9 dBm Default for Switzerland and Turkey 8110 10 dBm Default for France Netherlands Norway Singapore and UK 8111 11 dBm Default for Denmark and Finland 8112 12 dBm 8118 13 dBm 8114 14 dBm Default for Sweden 8115 15 dBm Default for Germany and Japan 8116 16 dBm Set by amp F5 amp I32 32 dBm 16 dBm to 32 dBm invalid for all country codes except North America See Appendix F amp I99 Automatically adjusted according to the ETC1 0 specification Set by amp F6 Use only with remote modems set to amp I99 and limit the data rate to 4800 bps S41 5 amp I100 Automatically a
94. o load the appropriate factory configuration to the appropriate Selecting Factory Configuration Options TYPE Where After the modem passes the power up self test it can be configured for operation using one of the factory preset configurations The purpose of preset configurations is to simplify the customization your modem These factory preset templates contain the most commonly used configuration options straps for Asynchronous Dial UNIX Dial and Cellular configurations Your modem is shipped from the factory with the Async Dial default configuration options stored in memory If UNIX Dial Cellular Mobile or Cellular PSTN is more appropriate for your configuration then you must change the factory setting as described as follows Where 2 PRESS storage area Enter the following AT amp Fy amp Wn y is one of the following Factory configurations 0 for Async Dial 3 for UNIX Dial 5 for Cellular Mobile 6 for Cellular PSTN and n is one of the following storage areas 0 for Active Saved 1 for Customer 1 2 for Customer 2 These three configuration areas are nonvolatile memory locations Active Saved contains the most recently saved changes to any configuration options In the event of power loss the modem retrieves these configuration options Customer 1 and Customer 2 are user defined configuration storage areas Enter Return The selected factory configuration is saved 2
95. odem to dial 9 wait for dial tone and call back to 1 800 555 1234 If an invalid directory or telephone number is entered but the password is correct the modem will stay online but will not conduct a callback sequence The modem also will not initiate a callback if no directory or telephone number is specified Security Configuration Examples The following examples show how a user might set up Security for several different environments The examples show an Administration Password of zero but this can be changed with a Security reset 005 R or a Change Administration Password command 96S Az DTE Only Use commands like the following to configure the modem for DTE Only Security AT SA00000000 Provide Administration Password AT SD1 xyz789 Store DTE password in index location 1 ATS67 0 Set No Callback Security ATS68 1 Set DTE Only Security ATS70 0 Set No Originate Security ATS94 to ATS98 Set to preferred choices AT amp W Save settings ATZ9 Reset modem The user who dials this modem is prompted for a DTE password The user responds by typing xyz789 VF Only Use commands like the following to configure the modem for VF Only Security AT SA00000000 Provide Administration Password AT SV 1 12345678 Store VF password in index location 1 ATS67 0 Set No Callback Security ATS68 2 Set VF and DTE Security ATS70 0 Set No Originate Security ATS94 to ATS98 Set to preferred choices AT amp W Save settings ATZ9 Reset mo
96. ommands and Responses cee bee A AE I RUE A E 1 Call Request Commands l ukupa pa os tad E 2 Call Responses l Yus Qua wes es Noter a ede ees E 2 Call Answer Commands 203 060 asa lyase serere bas E 3 Program Normal PRN Lec Yo eI ERR hacen PEE ES E 3 Request List of Stored Numbers RLN E 3 List Stored Number Response LSN E 3 Command Responses sco preceRr Rau PARERE ERI hed E 4 F Country Specific Configuration Options Glossary Index Configuration Options by Country F 1 3825 A2 GB30 20 November 1996 iii Preface Objectives and Reader Assumptions This manual describes how to install and operate the 3825Plus modem It is intended for all users of the 3825Plus modem How to Use This Manual Chapter 1 provides information about the 3825Plus modem s hardware and software features including the front panel and status indicators Chapter 2 provides instructions for installing the modem selecting factory configuration options recovering the ability to use AT commands and using AT command initialization strings Chapter 3 provides general information about fax modem operation Chapter 4 provides instructions for displaying and changing AT commands and S Registers These commands control all aspects of the modem s operation including Security which is described in a separate section of this chapter
97. online and in Direct mode amp T4 Enables Receive Remote Loopback Response configuration option amp T5 Disables Receive Remote Loopback Response configuration option amp T6 Remote Digital Loopback test The modem must be online and in Direct mode amp T7 Remote Digital Loopback with Pattern The modem must be online and in Direct mode amp T8 Local Loopback with Pattern The modem must be in Direct mode amp T9 Self Test To start a test set the S18 register to a desired test duration in seconds for example 30 seconds and then issue the amp Tn command Test results display as the number of errors sent or received over the number of blocks sent or received amp Vn View Configuration Options Displays each configuration group within the Active Operating Active Saved Customer 1 and Customer 2 configuration areas as well as the telephone numbers stores in directory locations 1 10 amp V amp VO Active Operating configuration options amp V1 Active Saved configuration options amp V2 Customer 1 configuration options amp V3 Customer 2 configuration options amp V4 Directory locations 1 10 amp V5 Status of VF line characteristics amp Wn Write Save to Memory Saves the current configuration options in Active Operating to one of three configuration areas amp W amp WO Saved to Active Saved amp W1 Saved to Customer 1 amp W2 Saved to Customer 2 4 12 November 1996 38
98. operating modes 4 1 S registers 4 17 A Repeat Last Command 4 3 ac power 2 3 Administration Password SA command Enter 4 29 SA command Change 4 29 described 4 27 Answer mode ATA 4 3 Answer Security S68 4 30 Asymmetric Rate Mode 4 18 Async Sync Mode AT amp M 4 11 AT Command Mode S84 4 25 AT commands 4 2 F Clear Error Buffer 4 7 H V 42bis Compression 4 7 amp amp P1 Clone Remote 4 8 amp C LSD Control 4 8 amp D DTR Action 4 8 amp F Factory Defaults 4 9 amp G V 22bis Guard Tone 4 9 amp I Dial Transmit Level 4 10 amp J Dial Transmit Type 4 10 amp L Leased Mode 4 10 amp M Async Sync Mode and DTE Dialer Type 4 11 amp Q Async Sync Mode and DTE Dialer Type 4 11 amp R RTS Action 4 11 amp S DSR Control 4 12 amp T Tests 4 12 amp V View Configuration Options 4 12 amp W Write to Memory 4 12 amp X Transmit Clock Source 4 13 amp Z Store Telephone Number 4 13 A Error Control Fallback Character 4 13 B Modulation Data Rate 4 13 4 15 5 Data Compression 4 14 96S A Enter Administration Password 4 29 96S A Change Administration Password 4 29 SB Set VF DTE Password 4 29 SD Set DTE Password 4 29 SP Display Password 4 29 SP Clear Password 4 29 PSR Reset Security 4 29 SV Set VF Password 4 29 FCLASS Service Class Selection 4 14 Command Recovery 4 3 NA Maximum Fr
99. p D command DTR Action configuration option is set for Ignore amp DO Verify that all cables are attached to the correct connectors on the rear of the modem Modem goes off hook answers but does not connect Perform a Local Analog Loopback test and verify that data entered at the DTE is echoed back to the DTE Verify that the originating modem is compatible Verify that originating modem recognizes your modem s answer tone B 2 November 1996 3825 A2 GB30 20 Troubleshooting Table B 4 2 of 3 Modem VF Connection Symptom Action Modem goes off hook answers but does not connect continued Verify that originating modem supports your modem s modulation schemes The 3825Plus modem recognizes V 34 V 32terbo V 32bis V 32 V 22bis V 22 V 21 Bell 212A and Bell 103J It does not support other vendors proprietary modulation schemes Use the S41 register to force your modem to operate at the same modulation scheme as the originating modem Originate Mode Verify that the modem s DTE Dialer configuration option is set to the correct setting either AT DTR Dialing V 25bis Async V 25bis bisync or V 25bis HDLC Modem does not go off hook and begin dialing If using AT Dialing refer to the Table B 5 Modem DTE Connection If using DTR Dialing verify the telephone number stored in directory location 1 and verify that the DTE is raising DTR from Off to ON to
100. r 2 Make sure that all AT commands are terminated with a carriage return Verify that the DTE has a valid character format Valid format consists of 8 data bits with no parity or 7 data bits with even odd mark or space parity Verify that the DTE s data rate is set to a level supported by the modem 115 200 bps 300 bps If using a PC verify that the modem is attached to the correct communications port B 4 November 1996 3825 A2 GB30 20 Troubleshooting Table B 6 Fax Operation Symptom Action Modem cannot send or receive a fax be enabled Make sure that your fax software is correctly installed Check your fax software to see if there is an Answer mode or Receive Fax setting that must Sections of your fax are missing This often indicates a noisy telephone line or a flow control problem To resolve the flow control problem try using hardware flow control RTS CTS This must be enabled in your software refer to the software s documentation and set within your modem using the AT amp K3 command RTS CTS flow control Your fax did not complete and your modem displays For some reason your modem and software are no longer communicating and as a result your modem is stuck in fax mode Type ATE1V1 and press Enter The software should result codes in the numeric respond with an OK Try sending or receiving the fax again format Automatic Firmware Download
101. r enable the modem s AutoAnswer function These commands are issued from the DTE Call Answer commands include Incoming Call INC Disregard Incoming Call DIC and Connect Incoming Call CIC Incoming Call INC The INC response informs the DTE that the modem has detected a ring tone At this point the DTE can issue the DIC command to disable the modem from answering the call INC is similar to the AT result code RING Disregard Incoming Call DIC The DIC command prevents the modem from answering an incoming call This command is only valid once the DTE receives an incoming call INC response from the modem A DIC must be issued within 5 seconds after receiving an INC The DIC command format is DIC If DIC is issued within 5 seconds the modem sends the VAL response to the DTE If DIC is issued after 5 seconds INV is returned Connect Incoming Call CIC The CIC command forces the modem to cancel any DIC commands and answer an incoming call This command is only valid when the DTE issues a DIC command CIC must be issued within 10 seconds after sending a DIC CIC is similar to the ATA command Program Normal PRN The Program Normal PRN command allows the DTE to enter and store a telephone number to a specific directory location PRN is similar to the AT amp Z command The PRN command format is PRN x n Where x is the directory location 1 10 n is the telephone number Request List of Stored Numbers
102. r otherwise use the frequency range 0 200 Hz No d c interaction is intended between the modem and the telephone network This apparatus may be directly connected to a speechband circuit or connected to a relevant branch system for speechband circuits Connection to Supply Mains IMPORTANT The wires in the mains lead supplied with this equipment are coloured in accordance with the following code Blue Neutral Brown Live As the colours of the cores in the mains lead of this equipment may not correspond with the coloured markings identifying the terminals in your plug proceed as follows e The core which is coloured blue must be connected to the terminal which is marked with the colour N or coloured black e The core which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red All European Countries Safety Notice For pluggable equipment the mains socket outlet shall be installed near the equipment and be easily accessible Interconnection circuits between this modem and any other equipment should be such that the equipment continues to comply with the requirements of EN41003 for TNV Telephone Network Voltage circuits and EN60950 for SELV Safety Extra Low Voltage circuits after making connection between circuits The power supply must be properly connected and switched on before the modem will work correctly 3825 A2 GB30 20 November 1996 F COMSPHERE 3825Plus Modem
103. r signaling Note that the remote modem s RTS Action configuration option must be set to Simulated Control Carrier amp C5 DTR Disconnect Off State of LSD follows state of DTR except upon a disconnect where LSD always turns Off DTR must then toggle Off and ON to turn LSD ON Use this setting for AT amp T DATAKIT applications Note that to use this configuration option the DTR Action configuration option must be set to Stndrd_RS232 amp D1 or amp D2 amp C6 Bridge Retrain LSD behaves as if it were set for Standard RS232 except that it is turned Off when a retrain condition lasts longer than 10 seconds and turned ON when no retrain condition is detected for 10 seconds amp Dn DTR Action Data Terminal Ready DTR is a signal from the DTE to the modem indicating that the DTE is connected and ready for operation amp DO Ignore Modem ignores the true status of DTR and treats it as always ON amp D1 Off Command Mode Modem enters online Command Mode if connected when DTR switches off amp D2 Standard RS232 DTR Signal is controlled by the DTE amp D3 Off Reload Strap Follows Standard RS232 operation except that when DTR switches Off the modem loads the Active Saved area into the Active Operating area amp D4 Controls On Hook Follows Standard RS232 operation except that modem does not disconnect until DTR is lowered by the DTE 4 8 November 1996 3825 A2 GB30 20 AT Commands and S Registers Tabl
104. ring Enter a value from 0 255 seconds The factory setting is 2 seconds for all countries except Sweden for which the factory setting is 0 Disabled See Appendix F S10 No Carrier Disconnect Determines how long in tenths of seconds the modem allows the carrier signal to be Off before disconnecting the call Enter a value from 0 254 in 0 1 second increments A value of 255 disables this register Values above 100 10 seconds are invalid for some countries See Appendix F The factory setting is 20 2 seconds S12 Escape Guard Time Sets the value in 20 millisecond increments for the required pause before and after the escape sequence is issued The guard time prevents the modem from interpreting data as the escape sequence characters Enter a value from 0 255 in 20 millisecond increments For example the factory setting of 50 equals 1000 milliseconds or one second The factory setting is 50 1 second S14 Asymmetric Rate Mode Register determines whether VF rates for transmitting and receiving are identical when using V 34 modulation Enabling the function permits the two rates to be different Register has the following values 0 Enable 1 Disable The factory setting is Enable 4 18 November 1996 3825 A2 GB30 20 AT Commands and S Registers Table 4 2 3 10 3825Plus S Registers S18 Test Timeout Sets the duration in seconds for the modem tests This au
105. rs 0 9 and a z Index may be 1 through 20 SPi Display Password Displays the VF or DTE password in index i Index may be 1 through 20 9eSPiz Delete Password Deletes the VF or DTE password in index i Index may be 1 through 20 SR Reset Security Resets the Administration Password and clears the password table The security type S67 S68 S70 is unchanged SVi pppppppp Set Index for VF Password Changes the VF type password in index ito password pppppppp The new VF password must be eight characters long and can consist of the characters 0 9 Index may be 1 through 20 3825 A2 GB30 20 November 1996 4 29 COMSPHERE 3825Plus Modem Table 4 3 2 of 3 3825Plus Security Commands S67 Callback Security Determines whether Callback Security is used 0 Disable 1 Enable not valid if S68 0 The factory setting is Disable S68 Answer Security Determines whether and which type of Answer Security is used 0 No Answer Security 1 DTE Only 2 VF and DTE 3 VF with DTE The factory setting is No Answer Security 70 Originate Security Determines whether Originate Security is used If enabled a DTE password must always be used when originating a call 0 Disable 1 Enable The factory setting is Disable 94 Entry Wait Time Determines how long the modem will wait for a VF password a DTE password or a callback Directory or telephone number
106. sconnect N5 V 42 MNP or Buffer N6 LAPM or Disconnect N7 LAPM or Buffer amp F5 and amp F6 Cellular set this to N4 Qn Flow Control of DTE Flow Control of Modem The Qn command controls two configuration options simultaneously Flow Control Flow Control of DTE of Modem Q0 Disable Disable Q1 XON XOFF XON XOFF Q2 CTS to DTE Disable Q3 CTS to DTE RTS to Modem Q4 XON XOFF Disable Q5 Disable XON XOFF Q6 Disable RTS to Modem FLOW CONTROL OF DTE Determines how the modem controls the flow of data from the DTE FLOW CONTROL OF MODEM Determines how the DTE controls the flow of data from the modem 3825 A2 GB30 20 November 1996 4 15 COMSPHERE 3825Plus Modem Table 4 1 14 of 14 3825Plus AT Commands Tn No Data Disconnect Timer Forces the modem to disconnect if no data is transmitted or received within a specified amount of time T TO Disable T2 is the default for Denmark and T3 is the default for France and Germany See Appendix F Tn Where nis a value from 1 to 255 in 1 minute increments Xn XON XOFF Passthrough Flow Control The way this configuration option functions depends on how the modem is configured for flow control When the modem is configured for XON XOFF flow control see Qn Flow Control of DTE this configuration option determines if flow control characters received from the local DTE will be passed on to the remote modem If config
107. space e All commands except A repeat last command and must begin with the characters AT and end by pressing the Enter key The AT or at prefix clears the command buffer and matches the modem speed and parity to that of the DTE Commands can be upper or lowercase but the modem will not recognize mixed case prefixes At or aT e Commands can be entered one at a time or in strings Strings can have up to 40 characters after the AT prefix You can use spaces hyphens and parentheses as fillers to make the commands easier to read the modem ignores these fillers and they are not counted among the characters which make up the command string Commands must be entered on one line and end with the return character Enter key Commands with the suffix n have several options associated with them For example in the Ln command L1 sets the speaker volume to Low and L3 sets the speaker volume to High Omitting the suffix has the same effect as using a zero suffix for example ATX is equivalent to ATXO The A command without pressing the Enter key causes the modem to repeat the last command entered e Valid commands are acknowledged with numeric or word result codes unless the result codes have been disabled using the Q1 command Appendix A lists all available result codes with numeric and word equivalents AT Command List AT commands are issued from an asynchronous DTE such as a PC and control the
108. ter controls support for an RJ11 connection including generation of the ETC 1 1 Calling Tone during call origination 0 Disable 1 Enable The factory setting is Disable 94 S95 S96 S97 S98 see Security at the end of this chapter 4 26 November 1996 3825 A2 GB30 20 AT Commands and S Registers Security Security configuration on the 3825Plus modem is performed using the AT commands and S registers in Table 4 3 Password Types Security in 3825Plus modems is implemented with three basic types of passwords There is one Administration Password which permits access to the password list and other security configuration options When the modem is shipped the Administration Password is 00000000 The Reset Security SR command changes the Administration Password to the value shown on the last page of this manual It also can be changed with the Change Administration Password SA command VF passwords consist of DTMF tones and are entered by the originating caller using the AT Dial D command or the keypad of an attached telephone They must consist of eight decimal digits 0 through 9 and are terminated with the symbol For example if 11223344 is a valid VF password on the 3825Plus modem at the telephone number 555 4321 it can be accessed with this command ATDT555 4321 11223344 If pulse dialing must be used the VF password must still be sent in DTMF tones This can be done using a
109. tified connector assembly telephone extension cord The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions 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 line 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 for this equipment is listed on a label on the modem 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 devices does not exceed 100 If your equipment is in need of repair refer to the procedures in the Government Requirements and Equipment Return sec
110. tion E November 1996 3825 A2 GB30 20 Safety Instructions United Kingdom Ringer Equivalence Number The Ringer Equivalence Number REN is a customer guide indicating approximately the maximum number of items of apparatus that should be connected simultaneously to the telephone line The sum of the RENs should not exceed four This value includes any BT provided instrument which may be assumed to have a REN of 1 unless marked otherwise The REN of this modem is 1 Connection to Leased Lines If any other apparatus including cable or wiring is connected between the apparatus and the point of connection to any speechband circuit then all that other apparatus shall comply with the following 1 The overall transmission characteristics of all that other apparatus shall be such as to introduce no material effect upon the electrical conditions presented to one another by the apparatus and the speechband circuit and 2 All that other apparatus shall comprise only i apparatus approved for the purpose of connection between the apparatus and a speechband circuit and ii cable or wiring complying with a code of practice for the installation of equipment covered by this part of BS 6328 or such other requirements as may be applicable This modem is suitable for connection to BT circuits with signalling at a nominal frequency of 2280 Hz and may be connected to multipoint or point to point circuits The apparatus does not require signalling o
111. tion Contact your sales or service representative directly for any help needed For additional information concerning warranty sales service repair installation documentation or training use one of the following methods e Via the Internet Visit the Paradyne World Wide Web site at http www paradyne com e Via Telephone Call our automated call system to receive current information via fax or to speak with a company representative Within the U S A call 1 800 870 2221 International call 813 530 2340 Trademarks All products and services mentioned herein are the trademarks service marks registered trademarks or registered service marks of their respective owners do Printed on recycled paper COPYRIGHT 1996 Paradyne Corporation All rights reserved This publication is protected by federal copyright law No part of this publication may be copied or distributed transmitted transcribed stored in a retrieval system or translated into any human or computer language in any form or by any means electronic mechanical magnetic manual or otherwise or disclosed to third parties without the express written permission of Paradyne Corporation 8545 126th Avenue North P O Box 2826 Largo Florida 33779 2826 Paradyne Corporation makes no representation or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose Further Para
112. tion Options by Country Table F 1 shows configuration options whose validity or default values vary according to country code The abbreviations used in the table are V for Valid for Invalid F for Factory Default Options Reference to particular country codes in this guide is not an assurance that the modem has been approved for use in that country Consult your sales representative Each modem is shipped from the factory with a specific country code The ability to change the country code is not accessible to the user Configuration options for the North America country code are valid in Argentina Bahamas Bermuda Bolivia Brazil Brunei Canada Chile China Colombia Costa Rica Dominican Republic Ecuador Guatemala Hong Kong India Indonesia Korea Kuwait Mexico Paraguay Peru Philippines Saudi Arabia Taiwan Thailand United States Uruguay and Venezuela if the modem is approved for use in the country 3825 A2 GB30 20 November 1996 F 1 COMSPHERE 3825Plus Modem Table F 1 1 of 4 Configuration Options by Country Dinan Nh salka G s c x gt E lt 3 S S Strap DCP AT 2 sie SE Description Selection Command m QA ro Z Z Auto Answer Disable S0 0 V V V V V V V V Norway Singapore Sweden Switzerland Turkey United Kingdom F 2 November 1996 3825 A
113. tomatically cancels any test in progress after the time of this register expires Any test can be manually canceled by issuing the escape sequence followed by the amp T0 command Enter a value from 0 255 seconds A value of 0 disables this register The factory setting is Disable 0 S26 RTS to CTS Delay Sets the length of time in 10 millisecond increments the modem waits after receiving RTS before issuing CTS to the DTE Enter a value from 0 255 The factory setting is 0 milliseconds S39 Receive Buffer Disconnect Delay Determines the maximum amount of time the modem can continue to send data in its Receive Buffer to the DTE after the modem is commanded by the DTE to disconnect or after the modem detects a line disconnect Register has the following values 0 Disable Immediate disconnect 121 second 2 2 seconds 255 255 seconds 3825 A2 GB30 20 November 1996 4 19 COMSPHERE 3825Plus Modem Table 4 2 4 of 10 3825 Plus S Registers S41 Dial Line Rate Determines the modem s highest data rate and modulation scheme for operation on dial lines S41 can also be set using the B and BL commands Register has the following values shown in bps 1214 400 V 32bis 2 12 000 V 32bis 3 9600 V 32bis V32 4 7200 V 32bis 5 4800 V 32bis V 32 6 2400 V 22bis 7 21200 V 22 8 1200 212A invalid for UK 10 2 0 300 V21 11 0 300 103J invali
114. u 5 2 Repeat Last Command A 4 3 reset ATZ 4 7 Result Code Control ATQ 4 6 result codes A 1 extended 4 6 Result Codes Format ATV 4 6 return to command mode 4 4 return to Online mode ATO 4 5 ring number SO 4 17 RTS Action amp R 4 11 RTS to CTS Delay S26 4 19 S registers changing 4 6 displaying 4 6 list of 4 17 SO Auto Answer RIng Number 4 17 92 Escape Character 4 1 4 17 S3 Carriage Return Character 4 17 S4 Line Feed Character 4 18 S5 Backspace Character 4 18 S6 Blind Dial Pause 4 18 S7 No Answer Timeout 4 18 S8 Pause Time 4 18 S10 No Carrier Disconnect 4 18 S12 Escape Guard Time 4 1 4 18 S14 Asymmetric Rate Mode 4 18 S18 Test Timeout 4 19 26 RTS to CTS Delay 4 19 S39 Receive Buffer Disconnect Delay 4 19 S41 Dial Line Rate 4 20 S43 V32bis Train 4 20 S44 Leased Line Rate 4 21 S45 Leased Line Transmit Level 4 21 S48 Leased Line Carrier On Level 4 21 S49 Transmit Buffer Disconnect Delay 4 22 S55 Access from Remote 4 22 556 550 Remote Access Password 4 22 S62 V 25bis Coding 4 22 S63 V 25bis Idle Character 4 23 S64 V 25bis New Line Character 4 23 S65 Line Current Disconnect 4 23 S66 NMS Call Messages 4 23 S67 Callback Security 4 30 S68 Answer Security 4 30 S69 Make Busy Via DTR 4 23 S70 Originate Security 4 30 S74 Network Position Identifier 4 24 S75 Network Management Address 4 24 S76 V 3
115. u to use the documentation that came with your fax software Fax Operation Your modem in combination with your computer and fax software is capable of emulating the functions of a fax machine You can use it to send and receive fax files in communication with another fax modem or with a standard fax machine These fax files are images turned into the sort of data that can be stored in your computer Fax machines and fax modems use special protocols different from those used by standard modems The device you intend to communicate with must be compatible with your modem which means that it must be capable of using the same protocol Your 3825Plus modem supports Class 1 EIA 578 and Class 2 SP 2388 Group III fax using V 17 V 29 or V 27ter modulations Before you can send or receive a fax the following must be true e Your modem must be online with a compatible fax modem or fax machine You must have fax software installed on your computer Fax Operation e You must have configured your modem according to the specifications of your fax software manual For example Some fax software requires that the modem have Auto Answer disabled You can set this with the ATSO 0 command Some fax software requires that the modem use software flow control You can set this with the AT Qn command DTR Action should be set for standard RS232 D operation Use the AT amp D2 command LSD Line Sign
116. umeric or verbal terse or extended See the Qn Vn and Xn commands in Chapter 4 for more information 3825 A2 GB30 20 November 1996 COMSPHERE 3825Plus Modem Table A 1 1 of 3 Result Codes Numbers 1 Numbers 2 Word Description 0 0 OK Command executed 1 1 CONNECT Modem connected to line 2 2 RING Modem receiving a ring voltage from the VF line 3 3 NO CARRIER Modem lost or does not detect carrier signal or does not detect answer tone 4 4 ERROR Invalid command 5 5 CONNECT 1200 Connection at 1200 bps 6 6 NO DIALTONE No dial tone detected 7 7 BUSY Busy or trunk busy signal detected 8 8 NO ANSWER No quiet answer 10 10 CONNECT 2400 Connection at 2400 bps 11 11 CONNECT 4800 Connection at 4800 bps 12 12 CONNECT 9600 Connection at 9600 bps 13 16 CONNECT 12000 Connection at 12 000 bps 14 13 CONNECT 14400 Connection at 14 400 bps 15 14 CONNECT 19200 Connection at 19 200 bps 16 15 CONNECT 7200 Connection at 7200 bps Appears when the Extended Result Codes configuration option is enabled Appears when the Extended Result Codes configuration option is set for Use DTE Rate This displays the DTE data rate instead of the line rate A 2 November 1996 3825 A2 GB30 20 Result Codes Table A 1 2 of 3 Result Codes Numbers 1 Numbers 2 Word Description 17
117. ured for modem to modem flow control see XG Modem to Modem Flow Control this configuration option determines if flow control characters received from the line will be passed on to the DTE X X0 Disable X1 Enable 4 16 November 1996 3825 A2 GB30 20 AT Commands and S Registers S Register List Table 4 2 lists S registers supported by the 3825Plus Not all S register values are valid in all countries See S registers affect the operating parameters of the Appendix F 3825Plus modem These registers are applicable only when the DTE Dialer Type configuration option is set for AT See amp Mn and amp Qn commands NOTE re In some countries the range of S registers can be displayed and or modified when the allowable values of some modem is in Command mode To display the value of an S registers is restricted If the DTE S register issue the following command attempts to enter a restricted T value the modem answers OK TEPE ATSH but it sets the register to the Where n is the register number nearest allowable value The DTE can check the actual value of the PRESS Enter register with the Sn command To modify the value of an S register issue the following command TYPE ATSn r Where n is the register number and r is the new value PRESS Enter Table 4 2 1 of 10 3825Plus S Registers S0 Auto Answer Ring Number Determines the number of rings the modem will count
118. ut basic problems that can occur when operating a 3825Plus modem Use Tables B 1 through B 6 to check out these problems If you are having data communication difficulties such as periodic character loss random errors or constant format errors use the loopback tests associated with the amp T command With these tests you can usually isolate the fault in your system by using the process of elimination If problems continue to occur contact your service representative If you would like to download the latest 3825Plus firmware from the Automatic Firmware Download Center see the instructions at the end of this chapter If you would like to copy the software in your modem to a remote 3825Plus modem see the amp amp P command in Chapter 4 Table B 1 Modem Health Symptom Action Modem did not pass power up self test Contact the Customer Assistance Center 1 800 237 0016 Power LED does not light Make sure the modem s ON Off switch is in the ON position Make sure the ac power transformer is connected to the ac power receptacle If the Power LED does not operate contact the Customer Assistance Center A problem is suspected after the power up self test not with your modem Perform a self test using the AT amp T9 command Perform a local analog loopback with a Pattern test If the modem consistently registers errors contact the Customer Assistance Center If the modem passes the above tests and
119. will default to 64 A AO 64 A1 128 A2 192 A3 256 A4 32 A5 16 amp F5 sets this to A4 XC n Error Control Negotiate Buffer Determines if the answering modem buffers the data that it received from the remote modem during an interval in which the modem attempts to establish a connection using error control Online changes to this configuration option do not take effect until a disconnect occurs C CO Disable C1 Enable C2 Disable and Switch Modem automatically switches to Buffer mode if it receives an error control fallback character an ASCII carriage return see A command during error control negotiation Dn CTS Control Clear to Send CTS is a signal from the modem to the DTE indicating that it can accept data from the DTE D DO Forced On Forces CTS to always ON D1 Standard RS232 D2 Wink When Disconnect CTS is turned Off for 1 to 2 seconds upon a disconnect D3 Follows DTR The state of CTS follows the state of DTR Gn Modem to Modem Flow Control If a modem s buffers begin to fill due to data it is receiving from the remote modem but is not passing the data on to the DTE it can issue flow control messages to the remote modem This only applies during Buffer mode connections where the remote modem also has modem to modem flow control enabled If Error Control mode is enabled flow control between the modems will happen automatically regardless of the setting of this configuratio
120. y Configuration Examples senede a cain cee ead penile Jos XA bees eae las obi ads 4 28 Overview This chapter discusses guidelines necessary to operate AT commands as well as listing all AT commands supported by the 3825Plus modem AT commands are issued from asynchronous DTEs Operating Modes The 3825Plus modem has two operating modes Command mode and Data mode Before a modem goes online establishes a successful connection with a remote modem it is considered to be in Command mode an idle state where you can modify its operating parameters or issue modem commands Any command issued is acknowledged with a response in either words or digits known as result codes Refer to Table A 1 in Appendix A for a listing of result codes Once the modems are online either by answering or originating a call they automatically switch to Data mode Data mode is a state where any entries made from the DTE are considered data and are transmitted and received between modems The modems remain in Data mode until the connection is broken or until they are forced into online Command mode using the escape sequence Switching Between Data Mode and Online Command Mode Sometimes it is necessary to change operating parameters while the modems are online The Escape Sequence allows you to toggle the modem between Data mode and online Command mode while maintaining a connection with the remote modem This is accomplished using the escape sequen
121. y committee Consultative Committee on International Telephone and Telegraph established by the United Nations to recommend communications standards and policies Now called ITU T A letter figure number punctuation or other symbols A way to check the accuracy of data transmission by sending displaying all the characters being transmitted to the monitor A fax modem standard Under Class 1 computer software handles most of the protocol compression and conversion tasks A fax modem standard Under Class 2 the modem handles most of the protocol compression and conversion tasks as well as modulation leaving the computer free for other work Contains the command s instructing the modem to perform a function Command lines begin with the AT prefix unless disabled and are executed when you press the Return key One of two general modem operating modes When in Command mode the modem accepts commands instead of transmitting or receiving data Modem software that sets specific operating parameters for the modem Sometimes referred to as straps An outlet on equipment and cables that provides a connection Canadian Standards Association Clear to Send A signal indicating that the modem is ready for the DTE to transmit data Glossary 2 November 1996 3825 A2 GB30 20 Glossary Customer 1 Customer 2 data bank data carrier data compression Data mode DB 25 connector dBm DCE DCP demodulation
122. y setting is ASCII 4 22 November 1996 3825 A2 GB30 20 AT Commands and S Registers Table 4 2 7 of 10 3825Plus S Registers S63 V 25bis Idle Character Identifies to the modem the type of idle fill used by the DTE while in V 25bis mode Register has the following values 0 Mark 1 Flag The factory setting is Mark S64 V 25bis New Line Character Identifies to the modem the type of line terminator used by the DTE while in V 25bis mode Register has the following values 0 Carriage Return and Line Feed 1 Carriage Return 2 Line Feed The factory setting is carriage return and line feed CR LF 65 Line Current Disconnect Determines if the modem disconnects if an interruption in loop current greater than 8 milliseconds or 90 milliseconds occurs Register has the following values 0 Enable 8 msec 1 Enable 90 msec 2 Disable The factory setting is Enable 8 msec for Japan North America Singapore and UK Enable 90 msec for Belgium Denmark Finland Netherlands Sweden Switzerland and Turkey and Disable for France Germany and Norway See Appendix F S66 NMS Call Messages Register determines if the modem sends information regarding status Call Progress and or sends summarized call statistics Call Connect to the dial network management system COMSPHERE 6700 Series NMS Register has the following values 0 Call Connect amp Progress 1 D

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