Instruction/ maintenance manual of the product 3830 Paradyne
Go to page of 138
COMSPHERE 3800 SERIES MODEMS MODEL 3830 USER’S GUIDE Document No. 3830-A2-GB91-30 August 1998.
COMSPHERE 3800 Series Modems – Model 3830 A August 1998 3830-A2-GB91-30 COMSPHERE 3800 Series Modems Model 3830 User ’ s Guide 3830-A2-GB91-30 4th Edition (August 1998) 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.
T rademarks B 3830-A2-GB91-30 August 1998 W arranty , Sales, and Service Information Contact your sales or service representative directly for any help needed.
COMSPHERE 3800 Series Modems – Model 3830 C August 1998 3830-A2-GB91-30 Important Safety Instructions 1. Read and follow all warning notices and instructions marked on the product or included in the manual. 2. This product is intended to be used with a three-wire grounding type plug – a plug which has a grounding pin.
Safety Instructions D 3830-A2-GB91-30 August 1998 8. A rare phenomenon can create a voltage potential between the earth grounds of two or more buildings. If products installed in separate buildings are interconnected , the voltage potential may cause a hazardous condition.
COMSPHERE 3800 Series Modems – Model 3830 E August 1998 3830-A2-GB91-30 Notices .
Safety Instructions F 3830-A2-GB91-30 August 1998 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.
COMSPHERE 3800 Series Modems – Model 3830 G August 1998 3830-A2-GB91-30 6. If you experience trouble with this equipment, please contact your sales or service representative (as appropriate) for repair or warranty information.
Safety Instructions H 3830-A2-GB91-30 August 1998 Canada Notice T o The Users Of The Canadian Public Switched T elephone 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.
COMSPHERE 3800 Series Modems – Model 3830 I August 1998 3830-A2-GB91-30 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.
i 3830-A2-GB91-30 August 1998 T able of Contents Preface Objectives and Reader Assumptions v . . . . . . . . . . . . . . . . . . How to Use This Manual v . . . . . . . . . . . . . . . . . . . . . . . . . . . Related Documents vi . . . . . . . . . . . .
COMSPHERE 3800 Series Modems – Model 3830 ii August 1998 3830-A2-GB91-30 4. A T Command Set and S-Registers Overview 4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Modes 4-1 . . . . . . . . . . . . . . .
T able of Contents iii 3830-A2-GB91-30 August 1998 List of Figures Figures Page 1-1 Model 3830 Front Panel 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Model 3830 Rear Panel 2-3 . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3800 Series Modems – Model 3830 iv August 1998 3830-A2-GB91-30 List of T ables T ables Page 1-1 Model 3830 LEDs 1-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Result Codes 4-4 . . . . . . . . . . . . . . . . .
v 3830-A2-GB91-30 August 1998 Preface Objectives and Reader Assumptions This manual describes how to install and operate the Model 3830 standalone modem.
COMSPHERE 3800 Series Modems – Model 3830 vi August 1998 3830-A2-GB91-30 Related Documents 3810-A2-GB30 COMSPHERE 3800 Series Modems, Models 3810, 381 1, and 3820, User ’ s Guide 6700-A2-GY31 COMS.
1-1 3830-A2-GB91-30 August 1998 Introduction Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Features 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3800 Series Modems – Model 3830 1-2 August 1998 3830-A2-GB91-30 Features The 3830 modem has a wide variety of features, including: • Dial-Line Modulations: V .32 terbo (19,200 and 16,800 bps), ITU-T V .32bis (14,400, 12,000, 9600, 7200, and 4800 bps), V .
1. Introduction 1-3 3830-A2-GB91-30 August 1998 • Compatibility with COMSPHERE 3800 Series modems’ Remote Access Mode, which allows users of 3810, 381 1, and 3820 modems to view the configuration options of a 3830 modem from their front panel LCD displays.
COMSPHERE 3800 Series Modems – Model 3830 1-4 August 1998 3830-A2-GB91-30 T able 1-1 (1 of 2) Model 3830 LEDs Label Color Indicates PWR green Power ON. Power is on and the modem is capable of operating. ALRM red Alarm Flashing The modem has detected an internal malfunction.
1. Introduction 1-5 3830-A2-GB91-30 August 1998 T able 1-1 (2 of 2) Model 3830 LEDs Label Indicates Color RA TE yellow Rate ON. The modem is connected at a data rate lower than the data rate it is configured for . OFF . The modem is connected at its configured data rate.
COMSPHERE 3800 Series Modems – Model 3830 1-6 August 1998 3830-A2-GB91-30.
2-1 3830-A2-GB91-30 August 1998 Model 3830 Modem Installation Overview 2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model 3830 Modem Package 2-1 . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3800 Series Modems – Model 3830 2-2 August 1998 3830-A2-GB91-30 • T wo ferrite chokes and cable ties • Fax software and documentation (if fax option installed) If any hardware components are damaged, notify your service representative.
2. Model 3830 Modem Installation 2-3 3830-A2-GB91-30 August 1998 • 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.
COMSPHERE 3800 Series Modems – Model 3830 2-4 August 1998 3830-A2-GB91-30 DTE Connection Use the following procedures to connect the EIA-232-D cable and ferrite choke from the modem to the DTE: 1. Make sure the modem’ s rear panel power switch is Of f.
2. Model 3830 Modem Installation 2-5 3830-A2-GB91-30 August 1998 2-Wire Leased-Line Connection Use the following procedures to connect a Model 3830 modem to the 6-pin, center pair , leased-line network interface. (For 2-wire leased line connection to a JM8 network interface, refer to Appendix C, Pin Assignments .
COMSPHERE 3800 Series Modems – Model 3830 2-6 August 1998 3830-A2-GB91-30 T o ensure compliance with FCC Part 15 Regulations, a ferrite choke must be installed on the power transformer cable.
2. Model 3830 Modem Installation 2-7 3830-A2-GB91-30 August 1998 Selecting Factory Configuration Options After the modem passes the power-up self-test, it can be configured for operation using one of two factory preset configurations.
COMSPHERE 3800 Series Modems – Model 3830 2-8 August 1998 3830-A2-GB91-30 1. Use the A T&F&W command to load the appropriate factory configuration to the appropriate storage area.
2. Model 3830 Modem Installation 2-9 3830-A2-GB91-30 August 1998 T o establish a connection with a remote modem, use the D (Dial) command. Refer to Chapter 4, A T Commands and S-Registers , for more information. Recovering A T Commands A T commands are issued from asynchronous terminals and personal computers.
COMSPHERE 3800 Series Modems – Model 3830 2-10 August 1998 3830-A2-GB91-30 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.
2. Model 3830 Modem Installation 2-1 1 3830-A2-GB91-30 August 1998 Initialization Strings An initialization string contains several A T commands that are entered at once to program the modem for a specific application.
COMSPHERE 3800 Series Modems – Model 3830 2-12 August 1998 3830-A2-GB91-30 Synchronous Leased-Line Applications For synchronous leased-line operation, create the following initialization string with the following commands: TYPE: A T&F &D1 &S1 S44=n S45=n S82=n &M1 &Ln &W Where: n is the value for the A T command.
3-1 3830-A2-GB91-30 August 1998 Fax Operation Overview 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fax Operation 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3800 Series Modems – Model 3830 3-2 August 1998 3830-A2-GB91-30 • Y ou 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.
4-1 3830-A2-GB91-30 August 1998 A T Command Set and S-Registers Overview 4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Modes 4-1 . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3800 Series Modems – Model 3830 4-2 August 1998 3830-A2-GB91-30 Switching Between Data Mode and Online Command Mode Sometimes it is necessary to change operating parameters while the modems are online.
4. A T Command Set and S-Registers 4-3 3830-A2-GB91-30 August 1998 Command Guidelines Review the following guidelines before using any A T Commands. • The escape sequence (+ + +) is used to enter online Command mode from Data mode.
COMSPHERE 3800 Series Modems – Model 3830 4-4 August 1998 3830-A2-GB91-30 Result Codes T able 4-1 lists all valid result codes for the Model 3830 modem.
4. A T Command Set and S-Registers 4-5 3830-A2-GB91-30 August 1998 T able 4-1 (2 of 3) Result Codes Numbers (1) Description Word Numbers (2) 16 15 CONNECT 7200* Connection at 7200 bps 17 17 CONNECT 16.
COMSPHERE 3800 Series Modems – Model 3830 4-6 August 1998 3830-A2-GB91-30 T able 4-1 (3 of 3) Result Codes Numbers (1) Description Word Numbers (2) 30 30 CONNECT 57600** Connection at 57,600 bps 32 .
4. A T Command Set and S-Registers 4-7 3830-A2-GB91-30 August 1998 T able 4-2 (1 of 23) Model 3830 A T Commands *** A T Command Recovery Mode Allows the modem to remain in Asynchronous data mode so that A T commands can be used to change the modem’s current configuration.
COMSPHERE 3800 Series Modems – Model 3830 4-8 August 1998 3830-A2-GB91-30 T able 4-2 (2 of 23) Model 3830 A T Commands D n Dial Begins the dialing sequence. The dial string n (modifiers and telephone number) is entered after the D command. Any digit 0–9, * , # , A, B, C, D, may be dialed as a DTMF tone.
4. A T Command Set and S-Registers 4-9 3830-A2-GB91-30 August 1998 T able 4-2 (3 of 23) Model 3830 A T Commands D n , continued 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.
COMSPHERE 3800 Series Modems – Model 3830 4-10 August 1998 3830-A2-GB91-30 T able 4-2 (4 of 23) Model 3830 A T Commands I n Identification Provides useful information when upgrading or servicing the product. I 0 Displays product code (default is 144).
4. A T Command Set and S-Registers 4-1 1 3830-A2-GB91-30 August 1998 T able 4-2 (5 of 23) Model 3830 A T Commands Q n Result Codes Result codes are informational messages (such as Connect and Ring) sent from the modem and displayed on the asynchronous DTE terminal.
COMSPHERE 3800 Series Modems – Model 3830 4-12 August 1998 3830-A2-GB91-30 T able 4-2 (6 of 23) Model 3830 A T Commands X n Extended Result Code, Dial T one Detect, and Busy T one Detect The X n.
4. A T Command Set and S-Registers 4-13 3830-A2-GB91-30 August 1998 T able 4-2 (7 of 23) Model 3830 A T Commands X n , continued BUSY TONE DETECT Sets the modem to monitor for Busy T one (Enable) or ignore Busy T one (Disable). Disable. Modem ignores busy tone.
COMSPHERE 3800 Series Modems – Model 3830 4-14 August 1998 3830-A2-GB91-30 T able 4-2 (8 of 23) Model 3830 A T Commands &C n LSD Control Line Signal Detect (LSD) is a signal indicating that the carrier signal is being received from the remote modem.
4. A T Command Set and S-Registers 4-15 3830-A2-GB91-30 August 1998 T able 4-2 (9 of 23) Model 3830 A T Commands &D n DTR Action Data T erminal Ready (DTR) is a signal from the DTE to the modem indicating that the DTE is connected and ready for operation.
COMSPHERE 3800 Series Modems – Model 3830 4-16 August 1998 3830-A2-GB91-30 T able 4-2 (10 of 23) Model 3830 A T Commands &F n Select Factory Default Configuration Options (cont’d) If ETC is installed and your modem is attached to a cellular telephone, use the &F5 command to configure the modem for cellular communications.
4. A T Command Set and S-Registers 4-17 3830-A2-GB91-30 August 1998 T able 4-2 (1 1 of 23) Model 3830 A T Commands & I n Dial T ransmit Level for Cellular Auto When Dial T ransmit Level T ype is set to Permissive, & I n sets Dial T ransmit Level to a value between –10 and –32 dBm.
COMSPHERE 3800 Series Modems – Model 3830 4-18 August 1998 3830-A2-GB91-30 T able 4-2 (12 of 23) Model 3830 A T Commands &Mn or &Qn Async/Sync Mode and DTE Dialer T ype Sets the modem for either asynchronous or synchronous operation and selects the type of dialing method the modem uses.
4. A T Command Set and S-Registers 4-19 3830-A2-GB91-30 August 1998 T able 4-2 (13 of 23) Model 3830 A T Commands &R n 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. &R0 Standard EIA-232.
COMSPHERE 3800 Series Modems – Model 3830 4-20 August 1998 3830-A2-GB91-30 T able 4-2 (14 of 23) Model 3830 A T Commands &S n DSR Control Data Set Ready (DSR) is a signal from the modem to the DTE indicating the modem is connected and ready for operation.
4. A T Command Set and S-Registers 4-21 3830-A2-GB91-30 August 1998 T able 4-2 (15 of 23) Model 3830 A T Commands &T n T ests &T0 Abort. Stops any test in progress. &T1 Local Analog Loop. &T2 Pattern. T ransmits and receives a 51 1 Bit Error Rate T est (BERT).
COMSPHERE 3800 Series Modems – Model 3830 4-22 August 1998 3830-A2-GB91-30 T able 4-2 (16 of 23) Model 3830 A T Commands &V n V iew Configuration Options Displays each configuration group wi.
4. A T Command Set and S-Registers 4-23 3830-A2-GB91-30 August 1998 T able 4-2 (17 of 23) Model 3830 A T Commands &Z n= x Store T elephone 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).
COMSPHERE 3800 Series Modems – Model 3830 4-24 August 1998 3830-A2-GB91-30 T able 4-2 (18 of 23) Model 3830 A T Commands C 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.
4. A T Command Set and S-Registers 4-25 3830-A2-GB91-30 August 1998 T able 4-2 (19 of 23) Model 3830 A T Commands K n Buffer Control, Send Break Control, Break Forces Escape The K n command sets t.
COMSPHERE 3800 Series Modems – Model 3830 4-26 August 1998 3830-A2-GB91-30 T able 4-2 (20 of 23) Model 3830 A T Commands N n Error Control Mode Determines the type of error control used by the modem. In most cases, V42/MNPorBfr is the best choice.
4. A T Command Set and S-Registers 4-27 3830-A2-GB91-30 August 1998 T able 4-2 (21 of 23) Model 3830 A T Commands Tn No Data Disconnect Timer Forces the modem to disconnect if no data is transmitted or received within a specified amount of time. T0 Disable.
COMSPHERE 3800 Series Modems – Model 3830 4-28 August 1998 3830-A2-GB91-30 T able 4-2 (22 of 23) Model 3830 A T Commands %Bn Modulation and Data Rate Sets the modulation and maximum VF rate. The %B300 and %B1200 commands work in conjunction with the B (ITU-T/ Bell Mode) command to determine modulation.
4. A T Command Set and S-Registers 4-29 3830-A2-GB91-30 August 1998 T able 4-2 (23 of 23) Model 3830 A T 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.
COMSPHERE 3800 Series Modems – Model 3830 4-30 August 1998 3830-A2-GB91-30 S-Register List S-Registers af fect the operating parameters of the Model 3830 modem. These registers are applicable only when the DTE Dialer T ype configuration option is set for A T .
4. A T Command Set and S-Registers 4-31 3830-A2-GB91-30 August 1998 T able 4-3 (2 of 20) Model 3830 S-Registers S2 A T 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 .
COMSPHERE 3800 Series Modems – Model 3830 4-32 August 1998 3830-A2-GB91-30 T able 4-3 (3 of 20) Model 3830 S-Registers 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 X0, X1, or X3.
4. A T Command Set and S-Registers 4-33 3830-A2-GB91-30 August 1998 T able 4-3 (4 of 20) Model 3830 S-Registers S18 T est Timeout Sets the duration (in seconds) for the modem tests. This automatically cancels any test in progress after the time of this register expires.
COMSPHERE 3800 Series Modems – Model 3830 4-34 August 1998 3830-A2-GB91-30 T able 4-3 (5 of 20) Model 3830 S-Registers S35 Auto Redial (Leased Line) Auto Redial allows repeated automatic dial backup attempts by specifying the range of Directory Locations that can be tried.
4. A T Command Set and S-Registers 4-35 3830-A2-GB91-30 August 1998 T able 4-3 (6 of 20) Model 3830 S-Registers 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.
COMSPHERE 3800 Series Modems – Model 3830 4-36 August 1998 3830-A2-GB91-30 T able 4-3 (7 of 20) Model 3830 S-Registers S39 Receive Buffer Disconnect Delay Determines the maximum amount of time t.
4. A T Command Set and S-Registers 4-37 3830-A2-GB91-30 August 1998 T able 4-3 (8 of 20) Model 3830 S-Registers S43 V .32bis T rain Register controls the modem’s train time for V .32bis/V .32 mode. Register has the following values: 0 = Long (A long train is required for satellite links which have long roundtrip delays.
COMSPHERE 3800 Series Modems – Model 3830 4-38 August 1998 3830-A2-GB91-30 T able 4-3 (9 of 20) Model 3830 S-Registers S46 Bad Lines Auto Originate Register determines if the modem performs an automatic dial backup if the leased lines fail.
4. A T Command Set and S-Registers 4-39 3830-A2-GB91-30 August 1998 T able 4-3 (10 of 20) Model 3830 S-Registers 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.
COMSPHERE 3800 Series Modems – Model 3830 4-40 August 1998 3830-A2-GB91-30 T able 4-3 (1 1 of 20) Model 3830 S-Registers S52 DTE Local Loopback (CT141) Determines if the modem performs a local analog loopback if it receives a CT141 signal from the DTE.
4. A T Command Set and S-Registers 4-41 3830-A2-GB91-30 August 1998 T able 4-3 (12 of 20) Model 3830 S-Registers S57 Remote Access Password Register allows entry of the second of digits of a remote access password. Any value from 00 to 99 is valid.
COMSPHERE 3800 Series Modems – Model 3830 4-42 August 1998 3830-A2-GB91-30 T able 4-3 (13 of 20) Model 3830 S-Registers 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 Factory setting is ASCII.
4. A T Command Set and S-Registers 4-43 3830-A2-GB91-30 August 1998 T able 4-3 (14 of 20) Model 3830 S-Registers S65 Line Current Disconnect Determines if the modem disconnects if an interruption in loop current greater than 8 milliseconds or 90 milliseconds occurs.
COMSPHERE 3800 Series Modems – Model 3830 4-44 August 1998 3830-A2-GB91-30 T able 4-3 (15 of 20) Model 3830 S-Registers S69 Make Busy Via DTR Determines if the modem goes off-hook (busy) when DTR is Of f. Register has the following values: 0 = Disable 1 = Enable Factory setting is Disable.
4. A T Command Set and S-Registers 4-45 3830-A2-GB91-30 August 1998 T able 4-3 (16 of 20) Model 3830 S-Registers 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.
COMSPHERE 3800 Series Modems – Model 3830 4-46 August 1998 3830-A2-GB91-30 T able 4-3 (17 of 20) Model 3830 S-Registers S80 No Data Disconnect T rigger Signal Register determines whether Pin 2 (.
4. A T Command Set and S-Registers 4-47 3830-A2-GB91-30 August 1998 T able 4-3 (18 of 20) Model 3830 S-Registers S84 A T Command Mode Determines how the modem responds to valid and invalid A T commands. The selections No ERROR and No Strap or ERROR permit installation into applications that are customized for a different modem.
COMSPHERE 3800 Series Modems – Model 3830 4-48 August 1998 3830-A2-GB91-30 T able 4-3 (19 of 20) Model 3830 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.
4. A T Command Set and S-Registers 4-49 3830-A2-GB91-30 August 1998 T able 4-3 (20 of 20) Model 3830 S-Registers S91 Cellular Enhancements V alid only if Enhanced Throughput Cellular (ETC) is installed. Register determines whether parameters are set to improve performance over a cellular link.
COMSPHERE 3800 Series Modems – Model 3830 4-50 August 1998 3830-A2-GB91-30.
A-1 3830-A2-GB91-30 August 1998 T roubleshooting Overview A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview This appendix points out basic problems that can occur when operating a 3830 modem.
COMSPHERE 3800 Series Modems – Model 3830 A-2 August 1998 3830-A2-GB91-30 T able A-1 Modem Health Symptom Action Modem did not pass power-up self-test Contact your customer service representative. Power LED does not light Make sure the modem’s ON/Of f switch is in the ON position.
A. T r oubleshooting A-3 3830-A2-GB91-30 August 1998 T able A-2 Modem – DTE Connection Symptom Action Modem does not accept or echo back A T commands V erify that the cable between the Async port of the DTE and the modem is a standard EIA-232 cable.
COMSPHERE 3800 Series Modems – Model 3830 A-4 August 1998 3830-A2-GB91-30 T able A-3 (1 of 4) 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.
A. T r oubleshooting A-5 3830-A2-GB91-30 August 1998 T able A-3 (2 of 4) Modem – VF Connection Symptom Action Modem goes off-hook, answers, but does not connect (continued) V erify that originating modem supports your modem’s modulation schemes. The 3830 modem recognizes V .
COMSPHERE 3800 Series Modems – Model 3830 A-6 August 1998 3830-A2-GB91-30 T able A-3 (3 of 4) Modem – VF Connection Symptom Action Modem does not go off-hook and begin dialing (continued) If using V .
A. T r oubleshooting A-7 3830-A2-GB91-30 August 1998 T able A-3 (4 of 4) Modem – VF Connection Symptom Action Modem establishes and disconnects a call (continued) The remote modem may be in a forced Error Control mode (disconnect if there is no error control).
COMSPHERE 3800 Series Modems – Model 3830 A-8 August 1998 3830-A2-GB91-30 T able A-5 Leased-Line Operation Symptom Action Modems do not train-up on leased lines V erify that the correct cabling is used for your application. Refer to Chapter 2 for modem installation instructions.
B-1 3830-A2-GB91-30 August 1998 T echnical Specifications T echnical Specifications B-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T echnical Specifications T able B-1 shows the technical specifications for the Model 3830 modem.
COMSPHERE 3800 Series Modems – Model 3830 B-2 August 1998 3830-A2-GB91-30 T able B-1 (2 of 4) Model 3830 T echnical Specifications Specifications Description COMP A TIBILITY DIAL-LINE MODULA TIONS V .32 terbo (19,200, 16,800 bps) ITU-T V .32bis (14,400, 12,000, 9600, 7200, 4800 bps) ITU-T V .
B. T echnical Specifications B-3 3830-A2-GB91-30 August 1998 T able B-1 (3 of 4) Model 3830 T echnical Specifications Specifications Description POWER CONSUMPTION 5.25 watts (typical, including power transformer , speaker of f) DIMENSIONS Weight Height Width Depth 2.
COMSPHERE 3800 Series Modems – Model 3830 B-4 August 1998 3830-A2-GB91-30 T able B-1 (4 of 4) Model 3830 T echnical Specifications Specifications Description DA T A RA TES Dial Line Leased Line Fax DTE 19,200, 16,800, 14,400, 12,000, 9600, 7200, 4800, 2400, 1200, or 300–0 bps.
C-1 3830-A2-GB91-30 August 1998 Pin Assignments EIA-232-D Pin Assignments C-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VF Connector Pin Assignments C-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMSPHERE 3800 Series Modems – Model 3830 C-2 August 1998 3830-A2-GB91-30 T able C-1 (2 of 3) EIA-232-D Pin Assignments RS-232 Pin Circuit Function Signal Source CCITT EIA Circuit Name 9 +10V – .
C. Pin Assignments C-3 3830-A2-GB91-30 August 1998 T able C-1 (3 of 3) EIA-232-D Pin Assignments RS-232 Pin Circuit Function Signal Source CCITT EIA Circuit Name 22 R1 CE 125 DCE Ring Indicator 23 CT1.
COMSPHERE 3800 Series Modems – Model 3830 C-4 August 1998 3830-A2-GB91-30 The Model 3830 provides the 2-wire leased-line signals on the same leads used for T ip and Ring when in Dial mode. T o connect the modem to a standard JM8 leased-line jack, a conversion cable (125-0054-1531) must be used.
C. Pin Assignments C-5 3830-A2-GB91-30 August 1998 T able C-2 illustrates the connector pin assignments for Model 3830 modular jacks as well as the pin assignments for the leased-line jacks. T able C-2 VF Connector Pin Assignments for Leased Lines Connector Model 3830 Model 3830 T ype Of Leased-Line Jack Connector Pin No.
COMSPHERE 3800 Series Modems – Model 3830 C-6 August 1998 3830-A2-GB91-30.
D-1 3830-A2-GB91-30 August 1998 ITU-T V .25bis Dialing Commands and Response Overview D-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Call Request Commands D-2 . . . . . . . . . . . . . . .
COMSPHERE 3800 Series Modems – Model 3830 D-2 August 1998 3830-A2-GB91-30 The following section discusses those V .25bis commands supported by the Model 3830 modem and the responses to those commands. T ables D-1 and D-2 in the Command Response section list the V .
D. CCITT V .25 bis Dialing Commands and Response D-3 3830-A2-GB91-30 August 1998 Call Request with Number Provided (CRN) The CRN command dials the telephone number entered from the DTE. CRN is similar to the A TD command. The CRN command format is: CRNn Where: n is the dial string.
COMSPHERE 3800 Series Modems – Model 3830 D-4 August 1998 3830-A2-GB91-30 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 A T result codes BUSY , NO ANSWER, NO CARRIER, NO DIAL TONE, and ERROR.
D. CCITT V .25 bis Dialing Commands and Response D-5 3830-A2-GB91-30 August 1998 Call Answer Commands Call Answer commands disable or 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).
COMSPHERE 3800 Series Modems – Model 3830 D-6 August 1998 3830-A2-GB91-30 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 A T&Z command.
D. CCITT V .25 bis Dialing Commands and Response D-7 3830-A2-GB91-30 August 1998 Command Response A Command Response indicates that the command entered was a valid or invalid entry . Command Response includes V alid (V AL) and Invalid (INV). V alid (V AL) The V AL response indicates that the modem has accepted the V .
COMSPHERE 3800 Series Modems – Model 3830 D-8 August 1998 3830-A2-GB91-30 T able D-1 V .25bis Commands V .25bis Command Description A T Command/ S-Register Equivalent CALL REQUEST COMMANDS CRN Call .
D. CCITT V .25 bis Dialing Commands and Response D-9 3830-A2-GB91-30 August 1998 T able D-2 lists V .25bis response messages supported by the Model 3830 modem.
COMSPHERE 3800 Series Modems – Model 3830 D-10 August 1998 3830-A2-GB91-30.
Glossary-1 3830-A2-GB91-30 August 1998 Glossary Active (Operating) 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).
COMSPHERE 3800 Series Modems – Model 3830 Glossary-2 August 1998 3830-A2-GB91-30 asynchr onous transmission 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.
Glossary Glossary-3 3830-A2-GB91-30 August 1998 buffer A storage device used to compensate for differences in the data flow rate when transmitting data from one device to another . byte A sequence of successive bits (usually eight) handled as a unit in data transmission.
COMSPHERE 3800 Series Modems – Model 3830 Glossary-4 August 1998 3830-A2-GB91-30 Customer 1 A user-defined configuration area containing customized configuration options for a specific application. Customer 2 A user-defined configuration area containing customized configuration options for a specific application.
Glossary Glossary-5 3830-A2-GB91-30 August 1998 dial line A communications circuit that is established by a switched circuit connection in the dial network. dial network See PSTN. dial string A series of characters that consists of numbers and modifiers used to dial a telephone number .
COMSPHERE 3800 Series Modems – Model 3830 Glossary-6 August 1998 3830-A2-GB91-30 error contr ol An algorithm used to correct data transmission errors. escape sequence Default setting is +++. This sequence lets you switch your modem from Data mode to Command mode.
Glossary Glossary-7 3830-A2-GB91-30 August 1998 Hz A unit of frequency (hertz) that equals one cycle per second. ITU-T The T elecommunications Standardization Sector of the International T elecommunications Union, an advisory committee established by the United Nations to recommend communications standards and policies.
COMSPHERE 3800 Series Modems – Model 3830 Glossary-8 August 1998 3830-A2-GB91-30 ITU-T V .42 ITU-T standard for error control protocol. ITU-T V .42 bis ITU-T standard for data compression. ITU-T V .54 ITU-T standard for local and remote diagnostic loopback tests.
Glossary Glossary-9 3830-A2-GB91-30 August 1998 modulation The process of varying some characteristics (usually amplitude, frequency , and/or phase) of a carrier wave to form data transmissions. off-hook A telephone or modem is being used. on-hook A telephone or modem is not being used.
COMSPHERE 3800 Series Modems – Model 3830 Glossary-10 August 1998 3830-A2-GB91-30 PSTN Public Switched T elephone Network. A network shared among many users who can use telephones to establish connections between two points. Also known as dial network.
Glossary Glossary-1 1 3830-A2-GB91-30 August 1998 tone dialing One of two dialing methods, in which telephone numbers are sent as tones across the telephone lines. training A process where two modems try to establish a connection over the VF line. UL Underwriter ’ s Laboratories, Inc.
COMSPHERE 3800 Series Modems – Model 3830 Glossary-12 August 1998 3830-A2-GB91-30.
Index-1 3830-A2-GB91-30 August 1998 Index ! (hook flash), 4Ć9 ," dial modifier (P ause), 4Ć8 ," P ause Time (S8), 4Ć32 ;&qu.
COMSPHERE 3800 Series Modems – Model 3830 Index-2 August 1998 3830-A2-GB91-30 &Q (Async/Sync Mode and DTE Dialer T ype), 4Ć18 &R (R TS Action), 4Ć19 &S.
Index Index-3 3830-A2-GB91-30 August 1998 A uto Dial Standby (S47), 4Ć38 A uto Originate, 4Ć38 A uto R edial (L eased Line), 4Ć34 A uto R edial (S37), 4Ć35 a.
COMSPHERE 3800 Series Modems – Model 3830 Index-4 August 1998 3830-A2-GB91-30 character format, 4Ć3 problems, A Ć3, AĆ7 clock source (A T&X), 4Ć22 command echo, 4Ć9, A Ć3 Command mode, 4Ć1 Command R esponse (V .
Index Index-5 3830-A2-GB91-30 August 1998 dialing problems, A Ć5 Directory Location 1 Callback (S67), 4Ć43 Disconnect Delay R eceive Buffer, 4Ć36 T ransmit Buffer,.
COMSPHERE 3800 Series Modems – Model 3830 Index-6 August 1998 3830-A2-GB91-30 Escape Guard Time, 4Ć2, 4Ć32 escape sequence (+++), 4Ć1, 4Ć2, 4Ć31 ETC (Enhanced T.
Index Index-7 3830-A2-GB91-30 August 1998 Identification (A TI), 4Ć10 initialization strings, 2Ć11 D A T AKIT , 2Ć12 synchronous leasedĆline applications, 2Ć12 V .
COMSPHERE 3800 Series Modems – Model 3830 Index-8 August 1998 3830-A2-GB91-30 SĆR egisters, 4Ć30 Modulation and Data Rate (%B), 4Ć28 modulation problems, A Ć5 modulations.
Index Index-9 3830-A2-GB91-30 August 1998 R (R everse dial), 4Ć9 Rate A uto Originate (S36), 4Ć34 Rate Control (CT111), 4Ć41 recovering use of A T comm.
COMSPHERE 3800 Series Modems – Model 3830 Index-10 August 1998 3830-A2-GB91-30 S34 (1800 Hz T raining T one), 4Ć33 S35 (A uto Redial, Leased Line), 4Ć34 S36 (Rate.
Index Index-1 1 3830-A2-GB91-30 August 1998 S88 (Straps When Disconnected), 4Ć47 S89 (V .42 ARQ Window Size Increase), 4Ć48 S90 (DTE Rate = VF R ate), 4Ć48 S91 (Cellular Enhancements), 4Ć49 S92 (V .
COMSPHERE 3800 Series Modems – Model 3830 Index-12 August 1998 3830-A2-GB91-30 V .25bis applications, 2Ć11 V .25bis Coding (S62), 4Ć42 V .25bis dialing, 4Ć18 V .25bis dialing comands, D Ć1 V .25bis Idle Character (S63), 4Ć42 V .
An important point after buying a device Paradyne 3830 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Paradyne 3830 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Paradyne 3830 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Paradyne 3830 you will learn all the available features of the product, as well as information on its operation. The information that you get Paradyne 3830 will certainly help you make a decision on the purchase.
If you already are a holder of Paradyne 3830, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Paradyne 3830.
However, one of the most important roles played by the user manual is to help in solving problems with Paradyne 3830. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Paradyne 3830 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
