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COMSPHERE 3800 Series Modems – Model 3830

Index-4

November 1996

3830-A2-GB91-20

dial tone wait, 4-8
dial-line connection, 2-4
dialing problems, A-5
Directory Location 1 Callback (S67), 4-38
Disconnect Delay

Receive Buffer, 4-33
Transmit Buffer, 4-35

display

configuration options, 4-22
S-Register, 4-11

DSR Control (AT&S), 4-20
DTE connection, 2-4
DTE Rate

CT111 Rate Control, 4-36
problems, A-3
set to VF rate, 4-43

DTE rate, in result codes, 4-12
DTR

Alarm Reporting (S77), 4-39
make busy via (S69), 4-38

DTR Action (AT&D), 4-15

echo command, 4-9
EIA-232-D cable, 2-2
EIA-232-D pin assignments, C-1
Enhanced Throughput Cellular, 4-17
Enhanced Throughput Cellular (ETC), 4-15
equipment provided by customer, 2-2
equipment supplied, 2-1
Error Control Fallback Character (AT%A), 4-27
Error Control Mode (AT\N), 4-26
Error Control Negotiate Buffer (AT\C), 4-24
Escape Guard Time, 4-2, 4-31
escape sequence (+++), 4-1, 4-2, 4-29
ETC (Enhanced Throughput Cellular) 4-17, 4-43
extended result codes (ATX), 4-12

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Содержание Comsphere

Страница 1: ...COMSPHERE 3800 SERIES MODEMS MODEL 3830 USER S GUIDE Document No 3830 A2 GB91 20 ...

Страница 2: ...6 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 permi...

Страница 3: ...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 727 530 2340 Trademarks All products and services mentioned herein are the trademarks service marks register...

Страница 4: ...mine another method of grounding the equipment 3 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 4 Do not allow anything to rest on the power cord and do not locate the product where persons will walk on the power cord 5 Do not attempt to service thi...

Страница 5: ...tion 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 ...

Страница 6: ...COMSPHERE 3800 Series Modems Model 3830 E November 1996 3830 A2 GB91 20 Notices ...

Страница 7: ...ay be connected to the telephone line Excessive RENs 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 RENs 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 a...

Страница 8: ...on of this manual for more information 8 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 9 The Telephone Consumer Protection Act of 1991 makes it unlawful for any person to use a computer ...

Страница 9: ...ompliance 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 User...

Страница 10: ...tion 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 procedure in the Government Requirements and Equipment Return section ...

Страница 11: ...g factory configuration options recovering the ability to use ATt 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 Appendix A provides instructions for performing diagnostic tests whe...

Страница 12: ...830 A2 GB91 20 Related Documents Call your sales representative to order additional product documentation 3810 A2 GB91 COMSPHERE 3800 Series Modems Models 3810 3811 and 3820 User s Guide 6700 A2 GY31 COMSPHERE 6700 Series Network Management System User s Guide ...

Страница 13: ...1 Model 3830 Modem Package 2 1 Model 3830 Installation 2 2 DTE Connection 2 4 Dial Line Connection 2 4 2 Wire Leased Line Connection 2 5 Telephone Connection 2 5 AC Power Transformer Connection 2 5 Communications Software Installation 2 6 Modem Power Up 2 6 Selecting Factory Configuration Options 2 7 Recovering AT Commands 2 9 Initialization Strings 2 11 3 Fax Operation Overview 3 1 Fax Operation ...

Страница 14: ...T Command Set and S Registers Overview 4 1 Operating Modes 4 1 Command Guidelines 4 3 AT Command List 4 6 S Register List 4 28 Appendices A Troubleshooting A 1 B Technical Specifications B 1 C Pin Assignments C 1 D CCITT V 25 bis Dialing Commands and Response D 1 Glossary Index ...

Страница 15: ...able of Contents v 3830 A2 GB91 20 November 1996 List of Figures Figures Page 1 1 Model 3830 Front Panel 1 3 2 1 Model 3830 Rear Panel 2 3 C 1 Wiring Diagram 8 Position to 6 Position Conversion Cable C 4 ...

Страница 16: ...AT Commands 4 7 4 3 Model 3830 S Registers 4 29 A 1 Modem Health A 2 A 2 Modem DTE Connection A 3 A 3 Modem VF Connection A 4 A 4 Online Operation A 7 A 5 Leased Line Operation A 8 B 1 Technical Specifications B 1 C 1 EIA 232 D Pin Assignments C 1 C 2 VF Connector Pin Assignments for Leased Lines C 5 D 1 V 25 bis Commands D 8 D 2 V 25 bis Response Messages D 9 ...

Страница 17: ...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 Model 3830 modem is extremely versatile when used in modem pooling environments it allows multiple users to temporarily customize settings in the Model 3830 thereby permitting communication with the calling modem Upon disconnection the Model...

Страница 18: ...ps Convenient migration to new or optional features through software downloading CCITT V 42 bis and MNP Class 5 data compression Virtual error free data integrity with CCITT V 42 and MNP Level 4 error control Asynchronous dial DTE data rates from 300 bps 115 200 bps A unique Paradyne modem pooling feature that preserves the answering modem s permanent configuration but allows multiple users to tem...

Страница 19: ...defined configuration areas COMSPHERE Model 3830 Modem Front Panel and Status Indicators The front panel of the Model 3830 modem is equipped with a speaker and 13 LEDs status indicators that monitor modem activity Figure 1 1 PWR ALRM CTS TXD LSD RXD EC RATE 105 106 103 109 108 COMSPHERE 3830 496 14007 01 SQ RTS DTR 104 OH AT Figure 1 1 Model 3830 Front Panel Status Indicators LEDs The Model 3830 s...

Страница 20: ...turned ON DTR or the modem has forced DTR ON RTS 105 green Request to Send The DTE has data to send to the modem CTS 106 green Clear to Send The modem is ready to receive data from the DTE TXD 103 green Transmit Data The modem is receiving data from the DTE to transmit LSD 109 green Line Signal Detect The modem has detected a valid carrier signal and is capable of transferring data to the DTE RXD ...

Страница 21: ...ed for OFF The modem is connected at its configured data rate AT yellow AT Command Set ON The AT command set is disabled OFF The AT command set is enabled Slow Flash The modem will not respond to all AT commands due to the setting of the AT Command Mode configuration option see S84 in Chapter 4 Or the modem has been configured to reload settings from Active Saved to Active Operating upon a disconn...

Страница 22: ...g AT Commands 2 9 Initialization Strings 2 11 V 25 bis Applications 2 11 Synchronous Leased Line Applications 2 12 AT T Exclusive Dialing for DATAKIT Applications 2 12 Overview 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 strings for un...

Страница 23: ...nector and appropriate wall plug if using the 220 240V power transformer One of the following modular dial or leased network interfaces RJ45S for dial programmable applications RJ11C for dial permissive applications JM8 for leased line applications only Model 3830 Installation Before installing your standalone modem make sure your installation site is clean and well ventilated Allow space around t...

Страница 24: ...0 A2 GB91 20 November 1996 An 8 pin modular keyed jack for external telephone set use only An 8 pin modular keyed jack for dial PSTN lines or 2 wire leased lines A 25 pin DB 25 S receptacle for DTE interface Figure 2 1 Model 3830 Rear Panel ...

Страница 25: ...ver to tighten the cable to the DTE To ensure compliance with FCC Part 15 Regulations a ferrite choke must be installed on the EIA 232 D interface cable 1 Open the ferrite choke place it around the DTE cable as close as possible to the connector attached to the modem and snap the ferrite choke shut 2 Install a cable tie behind the ferrite choke to prevent it from sliding along the cable Dial Line ...

Страница 26: ...m to a telephone 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 procedures to connect the modem to an ac power outlet 1 Make sure the modem s power switch is in the Off position 2 Insert the power transformer s 5 pin DIN male connector into the modem s rear ...

Страница 27: ...an directly send AT commands The Model 3830 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 and a list of AT commands supported by the Model 3830 refer to Chapter 4 AT Command Set and S Registers Modem Power Up Once your modem is properly connected to the DTE dial or leased lines and ac o...

Страница 28: ...uration then you must change the factory setting as described as follows The purpose of having preset configurations is so that you can have a head start in getting your modem operating and reducing the amount of time required to configure your modem NOTE If you have already changed certain configuration options you may have lost AT command control For example operating in Synchronous mode or disa...

Страница 29: ...e following storage areas 0 for Active Saved 1 for Customer 1 2 for Customer 2 NOTE 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 areas 2 PRESS Enter Return The selec...

Страница 30: ...ng configuration options The DTE Dialer Type configuration option M and Q is set to AT The Async Sync Mode configuration option M and Q is set to Async The DSR Control configuration option S is set to Forced On The LSD Control configuration option 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...

Страница 31: ...rs 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 C command is changed to Forced On C0 the M and Q commands are changed to Async mode with AT commands enabled M0 and Q0 and the S command is chan...

Страница 32: ...d somewhere in the middle of the initialization string Whenever an L command is used it must appear at the end of an initialization string V 25 bis Applications For V 25 bis HDLC dial line operation create an initialization string with the following commands Note that the character 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 a...

Страница 33: ...s TYPE AT F D1 S1 S44 n S45 n S82 n M1 Ln W Where n is the value for the AT command Refer to either Table 4 2 or Table 4 3 in Chapter 4 to determine the best possible values for these commands PRESS Enter AT T Exclusive Dialing for DATAKIT Applications For AT T exclusive dialing for DATAKITt applications create an initialization string with the following commands TYPE AT F C5 D1 S3 R0 D3 Q1 G1 S85...

Страница 34: ... 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 cap...

Страница 35: ...rol should be set for standard RS232 D operation Use the AT C1 command Data should be buffered during Error Control EC negotiation Use the AT 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...

Страница 36: ...e 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 4 1 for a listing of result codes Once the modems are online eit...

Страница 37: ...ne and in Data mode The Model 3830 modem uses three consecutive plus characters as the escape sequence To change this value refer to S Register S2 discussed later in Table 4 3 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...

Страница 38: ... aT 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 carriage return character Enter ...

Страница 39: ...tect 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 ...

Страница 40: ...nnection 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 Appears when the Extended Result Codes configuration...

Страница 41: ... data rate instead of the line rate AT Command List AT commands are issued from an asynchronous DTE such as a PC and control the modem s operation and software configuration AT commands are only applicable when the DTE Dialer Type configuration option is set for AT See Mn and Qn commands AT commands are entered while the modem is in Command mode and use the following format TYPE ATXn Where X is th...

Страница 42: ...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 th...

Страница 43: ... 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 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 the value held i...

Страница 44: ...ult 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 inclu...

Страница 45: ...same as I1 I10 Allows you to change the value displayed by I0 I10 0 causes I0 to display 144 default I10 1 causes I0 to display 240 I10 2 causes I0 to display 480 I10 3 causes I0 to display 960 I10 4 causes I0 to display 120 I11 Displays the program memory checksum I19 Displays the entire firmware revision number Ln Speaker Volume L0 Selects low volume L1 Selects low volume L2 Selects medium volum...

Страница 46: ...r 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 recogn...

Страница 47: ... 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 Add EC If error control is negotiated attaches the EC suffix to the CONNECT rate message Add V42 MNP Attaches the ...

Страница 48: ...remote modem when it goes on hook Issuing a long space is one method of disconnecting a call Y0 Disable Ignores long space Y1 Enable Disconnects if long space is detected Enables transmission of a long space Zn Reset and Load Active Z0 Loads configuration options from Active Saved to Active Operating Z1 Loads configuration options from Customer 1 to Active Operating Z2 Loads configuration from Cus...

Страница 49: ...disconnecting C3 Follows DTR State of LSD follows state of DTR C4 Simulated Control Carrier State of LSD follows state of remote modem s RTS via V 13 simulated control carrier signaling Note that the remote modem s RTS Action configuration option must be set to Simulated Control Carrier C5 DTR Disconnect Off State of LSD follows state of DTR except upon a disconnect where LSD always turns Off DTR ...

Страница 50: ...witches off D2 Standard RS232 DTR Signal is controlled by the DTE 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 D4 Controls On Hook Follows Standard RS232 operation except that modem does not disconnect until DTR is lowered by the DTE Fn Select Factory Default Configuration Options Loads f...

Страница 51: ...sconnect S10 100 V 32 bis Train S43 1 V 32 bis Autorate S76 3 V 42 ARQ Window Size S89 9 Cellular Enhancements 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 F6 command F6 Cellular PSTN sets the following configuration options AT Command Option Value Transmit Level I100 Error Control Mode N4 No An...

Страница 52: ... specification Use only with remote modems set to I99 and limit the data rate to 4800 bps S41 5 I100 Automatically adjusted according to the ETC1 1 specification Set by F6 Jn Dial Transmit Type Sets the power output level of the transmit signal over dial lines J0 Permissive 9 dBm J1 Programmable Ln Leased Mode Sets the modem for 2 wire leased line operation in Answer mode receiving a call or in Or...

Страница 53: ... commands and Hayes AutoSync enabled NOTE There is no M4 command M231 Q231 Modem operates in Asynchronous data mode and disables any type of AT command dialing protocol M232 Q232 Modem operates in Asynchronous data mode and uses V 25 bis asynchronous dialing M233 Q233 Modem operates in Synchronous data mode and uses V 25 bis bisynchronous dialing M234 Q234 Modem operates in Synchronous data mode a...

Страница 54: ...ols RTS to the modem in normal EIA 232 D operation RTS must be ON for the DTE to transmit to the modem R1 Ignores RTS Modem assumes RTS is always ON Use this selection when the DTE does not provide RTS to the modem 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 oper...

Страница 55: ...tive S2 Wink When Disconnect DSR is normally forced ON but is turned Off for 1 to 2 seconds upon a disconnect S3 Follows DTR When the modem receives DTR from the DTE it sends DSR to the DTE 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 S5 Delay to DTE Operation is s...

Страница 56: ...nse configuration option T5 Disables Receive Remote Loopback Response configuration option T6 Remote Digital Loopback test T7 Remote Digital Loopback with Pattern T8 Local Loopback with Pattern 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 T command Test results display as the number of errors sent or received over...

Страница 57: ... options V3 Customer 2 configuration options V4 Directory locations 1 10 Wn Write Save to Memory Saves the current configuration options in Active Operating to one of three configuration areas W0 Saved to Active Save W1 Saved to Customer 1 W2 Saved to Customer 2 Xn Transmit Clock Source Determines the source of timing for synchronous data transmitted from the DTE X0 Internal Modem provides transmi...

Страница 58: ...this way For example the command AT Z1 5551234 stores the telephone number 555 1234 into directory location 1 To clear a telephone number from a memory location issue the Zn command without entering a telephone number 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 i...

Страница 59: ...otiation 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 D0 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 ...

Страница 60: ...st 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 Applic 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...

Страница 61: ...ct until a disconnect occurs N0 Buffer Mode N1 Direct Mode N2 MNP or Disconnect N3 MNP or Buffer N4 V 42 MNP or Disconnect N5 V 42 MNP or Buffer F5 and F6 Cellular set this to N4 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 Di...

Страница 62: ...modem flow control see G Modem to Modem Flow Control this configuration option determines if flow control characters received from the line will be passed on to the DTE X0 Disable X1 Enable 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...

Страница 63: ...dem These registers are applicable only when the DTE Dialer Type configuration option is set for AT See Mn and Qn commands S Registers can be displayed and or modified when the modem is in Command mode To display the value of an S Register issue the following command TYPE ATSn Where n is the register number PRESS Enter To modify the value of an S Register issue the following command TYPE ATSn r Wh...

Страница 64: ...e 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 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 f...

Страница 65: ...from 2 255 seconds Factory setting is 2 seconds 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 Factory setting is 45 seconds S8 Pause Time for the Dial Modifier Determines how long in seconds the modem pauses when it encounters a comma in the Dial command string Enter a value f...

Страница 66: ...ng of 50 equals 1000 milliseconds or one second Factory setting is 50 1 second S18 Test Timeout Sets the duration in seconds for the modem tests This automatically 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 T0 command Enter a value from 0 255 seconds A value of 0 disables this register Factor...

Страница 67: ...back to 14 400 6 On fallback to 16 800 NOTE Rate Auto Originate is valid only when V 32 bis Autorate is enabled S76 0 S37 Auto Redial Works in conjunction with the Bad Lines Auto Originate and Rate Auto Originate options It allows repeated automatic dial backup attempts by specifying the range of Directory Locations that can be tried The modem must be in Originate mode Register has the following v...

Страница 68: ...ne disconnect Register has the following values 0 Disable Immediate disconnect 1 1 second 2 2 seconds D D D D 255 255 seconds S41 Dial Line Rate Determines the modem s highest data rate and modulation scheme for operation on dial lines Register has the following values 1 14 400 V 32 bis 2 12 000 V 32 bis 3 9600 V 32 bis V 32 4 7200 V 32 bis 5 4800 V 32 bis V 32 6 2400 V 22 bis 7 1200 V 22 8 1200 2...

Страница 69: ...Long 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 0 14 400 V 32 bis 1 14 400 V 32 bis 2 12 000 V 32 bis 3 9600 V 32 bis 4 7200 V 32 bis 5 4800 V 32 bis 6 2400 V 22bis 18 19 200 V 32terbo 19 16 800 V 32terbo Factory setting is 19 200 V 32terbo S45 Leased L...

Страница 70: ...ffer 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 1 1 second 2 2 seconds D D D D 255 255 seconds Factory default is 10 seconds S51 DTE Remote Loopback CT140 Determines if the modem performs a remote ...

Страница 71: ... remote 3800 Series modem via a dial line or leased line connection 0 Enable 1 Disable Factory default is Enable S61 CT111 Rate Control Determines if CT111 Rate is disabled set for Fallback 1 or Fallback 2 CT111 Rate allows the DTE to control modem rate via Pin 23 of the EIA 232 D interface This configuration option determines the effect of the DTE Rate Control signal It is only valid in Async Dir...

Страница 72: ...tting is ASCII S63 V 25 bis Idle Character Identifies to the modem the type of idle fill used by the DTE while in V 25 bis mode Register has the following values 0 Mark 1 Flag Factory setting is Mark S64 V 25 bis New Line Character Identifies to the modem the type of line terminator used by the DTE while in V 25 bis mode Register has the following values 0 Carriage Return and Line Feed 1 Carriage ...

Страница 73: ...onds occurs Register has the following values 0 Enable 8 msec 1 Enable 90 msec 2 Disable Factory setting is Enable 8msec S67 Directory Location 1 Callback Determines if the modem uses the single number callback function Register has the following values 0 Disable 1 Enable Factory setting is Disable S69 Make Busy Via DTR Determines if the modem goes off hook busy when DTR is Off Register has the fo...

Страница 74: ... bis mode Autorate allows the modem to adjust line speed due to noise Register has the following values 0 Enable 1 Disable 2 Start at 4800 bps 3 Start at 9600 bps 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 v...

Страница 75: ... 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 Factory setting is Enable 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 d...

Страница 76: ...orce the modem into the originate handshake after first dialing a call Register has the following values 0 Disable 1 Enable Factory setting is Disable 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 ...

Страница 77: ...ns in the Active Saved configuration area are loaded to Active Operating when the modem disconnects Register has the following values 0 or 231 No Change 1 or 232 Reload Factory setting is No Change 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 fo...

Страница 78: ...Disable S91 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 Factory setting is Disable F5 and F6 set S91 to Enable S93 RJ11 Cellular Adapt Register controls support for an RJ11 connection including generation of...

Страница 79: ...h A 5 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 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 A ...

Страница 80: ...sformer is connected to the ac power receptacle If the Power LED does not operate contact your customer service representative A problem is suspected after the power up self test Perform a self test using the AT T9 command Perform a local analog loopback with a Pattern test If the modem consistently registers errors contact your customer service errors contact your customer service representative ...

Страница 81: ...ync Dial factory configuration area to guarantee that all configuration options are returned to their proper setting Refer to the Recovering AT Commands section in Chapter 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...

Страница 82: ...nt 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 D command DTR Action configuration option is set for Ignore D0 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 Perfor...

Страница 83: ...ption is set to the correct setting either AT DTR Dialing V 25 bis Async V 25 bis Bisync or V 25 bis HDLC Modem does not go off hook and begin dialing If using AT Dialing refer to the Table A 2 Modem DTE Connection g dialing 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 initiate a dial If using V 25 bis Asyn...

Страница 84: ... 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 32 bis or V 32 modulation set the modem s V 32 bis Train configuration option to Long Intermittent disconnects high error rates or excessive retransmissions Use the T7 command to perform a remote digital...

Страница 85: ...ration 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 A 4 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 tra...

Страница 86: ...ased 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 ...

Страница 87: ...cal specifications for the Model 3830 modem Table B 1 1 of 4 Model 3830 Technical Specifications Specifications Description APPROVALS 115 Vac 60 Hz only FCC Part 15 FCC Part 68 UL CSA DOC CS 02 and CS 03 Class A Registration Number See label on modem Listed to UL 1950 Certified to CSA C22 2 No 950 Certification Number See label on modem B ...

Страница 88: ...ell 103J 300 bps LEASED LINE MODULATIONS V 32terbo 19 200 16 800 bps CCITT V 32 bis 14 400 12 000 9600 7200 4800 bps CCITT V 32 9600 4800 bps FAX MODULATIONS Optional CCITT V 17 14 400 12 000 9600 7200 bps CCITT V 29 9600 7200 bps CCITT V 27 ter 4800 2400 bps ENVIRONMENT Operating Temperature Relative Humidity Shock and Vibration Storage Temperature 32 F 0 C to 122 F 50 C 5 to 90 noncondensing Wit...

Страница 89: ...power transformer 2 1 inches 5 4 cm 7 6 inches 19 4 cm 12 1 inches 30 8 cm TRANSMIT LEVEL Dial Line Leased Line Permissive 9 dBm Programmable transmit level defined by TELCO 0 through 15 dBm in 1 dBm decrements TELEPHONE INTERFACE Dial Line Connectivity Leased Line Connectivity RJ11C Permissive RJ45S Programmable 6 pin center pair leased jack For JM8 connection refer to Appendix C for JM8 conversi...

Страница 90: ...tions Specifications Description DATA RATES Dial Line Leased Line Fax DTE 19 200 16 800 14 400 12 000 9600 7200 4800 2400 1200 or 300 0 bps 19 200 16 800 14 400 12 000 9600 7200 or 4800 bps 14 400 12 000 9600 7200 4800 or 2400 bps 115 200 300 bps ERROR CONTROL CCITT V 42 MNP 4 2 DATA COMPRESSION CCITT V 42 bis MNP Class 5 ...

Страница 91: ...n assignments for the modem Table C 1 1 of 3 EIA 232 D Pin Assignments RS 232 Pin Name EIA Circuit CCITT Signal Source 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 C ...

Страница 92: ... to drive one RS 232 load 10 10V Reserved for test purposes may be used to drive one RS 232 load 11 Unassigned 12 CT112 CI 112 DCE Data Signal Rate Select 13 Reserved for future function 14 Reserved for future function 15 TXC DB 114 DCE Transmit Clock 16 Reserved for future function 17 RXC DD 115 DCE Receive Clock 18 18 CT141 LL 141 DTE Local Loopback 20 DTR CD 108 DTE Data Terminal Ready 21 CT140...

Страница 93: ...sed 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 Bellc...

Страница 94: ... used for Tip and Ring when in Dial mode To connect the modem to a standard JM8 leased line jack a conversion cable 125 0054 1531 must be used Note that for 2 wire leased line operation the yellow and black leads are not used The wiring of this cable is illustrated in Figure C 1 Figure C 1 Wiring Diagram 8 Position to 6 Position Conversion Cable ...

Страница 95: ... 6 pin 8 pin Model 3830 Phone Connector J6 Model 3830 Line Connector J7 JM8 6 pin Center Pair Leased 1 Ring 1 Not Used 1 2 Tip 1 Not Used 2 3 Mode Indication Loopback Indication Tip 1 3 4 Phone Ring 2 wire leased line Dial Ring Not Used Ring 4 5 Phone Tip 2 wire leased line Dial Tip Not Used Tip 5 6 Mode Indication Common Loopback Indication Ring 1 6 7 Program Resistor Tip Not Used 8 Program Resis...

Страница 96: ...esponse LSN D 6 Command Response D 7 Valid VAL D 7 Invalid INV D 7 Overview CCITT V 25 bis is an international dialing protocol that permits direct and stored number dialing using DTEs in either Asynchronous Bisynchronous or HDLC operating mode The Model 3830 modem supports V 25 bis request and answer commands that initiate and cancel dialing program commands that allow you to create and enter tel...

Страница 97: ...ialing 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 1 stop bit Character format is determined by the DTE The modem detects this format when an AT pre...

Страница 98: ...ial Wait for Dial Tone or User Defined Pause Flash Hook or 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 b...

Страница 99: ...sy 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 DT...

Страница 100: ... 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 co...

Страница 101: ... 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 ...

Страница 102: ...es that the modem has accepted the V 25 bis command issued by the DTE VAL is similar to the AT result code OK Invalid INV The INV response indicates that the modem has received an incorrect V 25 bis command from the DTE INV is similar to the AT result code ERROR The INV response format is INVxx Where xx is CU command unknown MS message syntax error PS parameter syntax error PV parameter value erro...

Страница 103: ...nd 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 Z LIST REQUEST RLN Request to List Stored Number NONE ...

Страница 104: ...el 3830 modem Table D 2 V 25 bis Response Messages V 25 bis 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 ...

Страница 105: ...aries continuously Answer mode 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 handshaking process with the calling modem ASCII This code American Standard Code for Information Interchange is a 7 bit cod...

Страница 106: ... the asynchronous DTE data rate when using AT commands automatic answer A capability to respond to a call received over a dial line baud 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 Bisync Binary Synchronous Communications An IBMr communications protocol that has become...

Страница 107: ...ard for modems operation full duplex with asynchronous or synchronous data at 1200 bps over the dial network PSTN CCITT V 22 bis A standard for modems operating full duplex with asynchronous or synchronous data at 1200 or 2400 bps over the dial network PSTN CCITT V 25 bis A dialing protocol that permits direct and stored number dialing in asynchronous bisynchronous or HDLC modes CCITT V 27 ter A f...

Страница 108: ...tor Class 1 fax A fax modem standard Under Class 1 computer software handles most of the protocol compression and conversion tasks Class 2 fax 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 command line Contains the command s instructing the modem to perform a function Command...

Страница 109: ... capacity needs and the amount of data to be transmitted Anything that is eliminated is restored after the data is received Data mode One of two general modem operating modes When in Data mode the modem transmits and receives data instead of accepting commands DB 25 connector A 25 pin connector that is used to connect a cable which enables communications between two devices dBm A decibel reference...

Страница 110: ...racters entered DOC Canadian Department of Communication download A process that transfers modem firmware from a locally attached PC to a modem or allows the cloning of firmware from a local modem to a remote modem Also the process of moving data from a host computer to an attached computer DTE The equipment Data Terminal Equipment such as a computer or terminal that provides data in the form of d...

Страница 111: ...an communicate with a fax machine or with another fax modem fax software A program or system of programs installed on a computer that allow a fax modem to send and receive facsimile images FCC Federal Communications Commission Board of Commissioners that regulates all interstate and foreign electrical communication systems that originate from the United States full duplex Simultaneous two way comm...

Страница 112: ... its receiver long space disconnect 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 loopback test 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 th...

Страница 113: ...t Private Branch Exchange dedicated to one customer A PBX connects private telephones to each other and to the public dial network permissive interface 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 power up self test A test that checks most hardware componen...

Страница 114: ... them result code An asynchronous message in either numbers or words that the modem sends to the DTE after executing or trying to execute a command RJ11 A type of 6 position jack normally used with permissive dial networks and telephone sets rotary A TELCO service whereby multiple lines to a customer premise share a common telephone number S Registers Registers that contains information affecting ...

Страница 115: ... UNIX Dial A factory preset configuration area containing the configuration options most often used in a UNIXr dial network USOC Universal Service Ordering Codes VF 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 XOFF A character that tells the DTE or modem to stop transmitting data...

Страница 116: ...7 M Async Sync Mode and DTE Dialer Type 4 18 Q Async Sync Mode and DTE Dialer Type 4 18 R RTS Action 4 19 S DSR Control 4 20 T Tests 4 21 V View Configuration Options 4 22 W Write to Memory 4 22 X Transmit Clock Source 4 22 Z Store Telephone Number 4 23 A Error Control Fallback Character 4 27 C MNP5 Data Compression 4 27 Command Recovery 4 7 A Maximum Frame Size 4 23 C Error Control Negotiate Buff...

Страница 117: ...10 O Online Mode 4 10 Q Result Codes 4 11 recovering use of 2 9 Sn Display S Register 4 11 Sn r Change S Register 4 11 V Result Codes Format 4 11 X Extended Result Code Dial Tone Detect Busy Tone Detect 4 12 Y Long Space Disconnect 4 13 Z Reset and Load Active 4 13 AT Command Mode S84 4 41 AT commands 4 6 AT T exclusive dialing 2 12 Auto Redial S37 4 32 auto answer problems A 4 automode S78 4 40 a...

Страница 118: ...4 9 A 3 Command mode 4 1 Command Response V 25 bis D 7 compression MNP5 4 27 V 42 bis 4 28 COMSPHERE 6700 Series NMS 1 2 configuration options factory default 2 7 factory defaults AT F 4 15 loading ATZ 4 13 loading when disconnected S88 4 42 saving AT W 4 22 selecting 2 7 viewing AT V 4 22 connect problems A 4 A 6 CT111 Rate Control S61 4 36 CTS Control D 4 24 Data mode 4 1 DATAKIT applications 2 ...

Страница 119: ...lems A 3 set to VF rate 4 43 DTE rate in result codes 4 12 DTR Alarm Reporting S77 4 39 make busy via S69 4 38 DTR Action AT D 4 15 echo command 4 9 EIA 232 D cable 2 2 EIA 232 D pin assignments C 1 Enhanced Throughput Cellular 4 17 Enhanced Throughput Cellular ETC 4 15 equipment provided by customer 2 2 equipment supplied 2 1 Error Control Fallback Character AT A 4 27 Error Control Mode AT N 4 26...

Страница 120: ...rmware revision number 4 10 flow control AT Q command 4 26 DTE to modem 4 26 modem to DTE 4 26 modem to modem 4 24 problems A 7 frame size A 4 23 front panel 1 3 hang up ATH 4 9 Hayes AutoSync 4 18 hook flash 4 9 Hook Switch Control ATH 4 9 Identification ATI 4 10 initialization strings 2 11 DATAKIT 2 12 synchronous leased line applications 2 11 V 25 bis applications 2 11 installation Model 3830 m...

Страница 121: ...anel 1 3 Line Current Disconnect S65 4 38 load Active Operating area 4 13 LSD Control AT C 4 14 MI MIC Dialing 4 41 MNP5 Data Compression AT C 4 27 Model 3830 modem commands 4 6 description 1 1 features 1 2 operating modes 4 1 result codes 4 4 S Registers 4 28 modulation problems A 5 modulations supported B 2 NMS COMSPHERE 6700 Series NMS 1 2 No Carrier Disconnect S10 4 30 No Data Disconnect Trigg...

Страница 122: ...4 9 Rate Auto Originate S36 4 32 Rate Control CT111 4 36 recovering use of AT commands 2 9 remote access S55 4 36 Repeat Last Command A 4 7 reset ATZ 4 13 Result Code Control ATQ 4 11 result codes 4 4 extended 4 12 Result Codes Format ATV 4 11 return to command mode 4 9 return to Online mode ATO 4 10 ring number S0 4 29 RJ11 Cellular Adapt S93 4 43 RTS Action R 4 19 RTS to CTS Delay S26 4 31 ...

Страница 123: ...nnect Delay 4 33 S41 Dial Line Rate 4 33 S43 V32 bis Train 4 34 S44 Leased Line Rate 4 34 S45 Leased Line Transmit Level 4 34 S48 Leased Line Carrier On Level 4 35 S49 Transmit Buffer Disconnect Delay 4 35 S51 DTE Remote Loopback 4 35 S52 DTE Local Loopback 4 36 S55 Access from Remote 4 36 S61 CT111 Rate Control 4 36 S62 V 25 bis Coding 4 37 S63 V 25 bis Idle Character 4 37 S64 V 25 bis New Line C...

Страница 124: ...5 serial number 4 10 speaker on off 4 10 speaker volume 4 10 status indicators 1 3 stop test AT T0 4 21 Straps When Disconnected S88 4 42 synchronous leased line applications 2 11 T Tone dial 4 8 technical specifications B 1 technical support A 1 telephone connection 2 5 telephone directory AT Z 4 23 Test Timeout S18 4 31 tests AT T 4 21 timeout for no answer S7 4 30 transmit level AT I 4 17 trans...

Страница 125: ...e Character S63 4 37 V 25 bis New Line Character 4 37 V 29 Train On Data S92 4 43 V 32 bis Automode S78 4 40 V 32 bis Autorate Dial Line 4 39 V 32 bis Autorate Leased Line 4 41 V 32 bis Train S43 4 34 V 32terbo 1 1 V 42 ARQ Window Size S89 4 42 V 42 bis Compression AT H 4 28 VF connector pin assignments C 3 VF Rate 4 33 4 34 W Wait for dial tone 4 8 XON XOFF 4 26 XON XOFF Passthrough AT X 4 27 ...

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