Model MT5600BA Model MT5600BL Data/Fax Modem User Guide
MultiModemII User Guide Models MT5600BA and MT5600BL P/N 88302601 Revision B (7/9/99) ©1999 by Multi-Tech Systems, Inc. All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-Tech Systems, Inc. Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.
FCC Part 15 NOTE: 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 instructions, may cause harmful interference to radio communications.
MultiModemII User Guide Chapter 1: Introduction Introduction ............................................................................................................................. 2 Product Description ................................................................................................................ 2 Features .................................................................................................................................... 2 What Is in Your Modem Package? ............
Contents Status ........................................................................................................................ 26 Basic Options .......................................................................................................... 27 Advanced Options ................................................................................................. 28 Remote Configuration Options ............................................................................ 29 Diagnostic Options ..
MultiModemII User Guide Appendix A: Regulatory Compliance FCC Part 68 Telecom ............................................................................................................ 84 Fax Branding Statement ....................................................................................................... 85 Canadian Limitations Notice .............................................................................................. 86 International Modem Restrictions ................................
Contents Appendix G: ASCII Character Map ......................................................................................... 106 Index .....................................................................................................................................................................
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1 Introduction
MultiModemII User Guide Introduction Congratulations on your purchase of the MultiModemII modem. You have acquired one of the finest intelligent data/fax modems available today from one of the world’s oldest modem manufacturers: Multitech Systems, Inc. This user guide will help you install, configure, test and use your modem. Product Description The MultiModemII MT5600BA and MT5600BL modems incorporate new modem technologies called K56flex™ and V.
1 Introduction Data • Supports K56flexTM and ITU-T V.90 speeds plus 33.6K, 31.2K, 28.8K, 26.4K, 24K, 21.6K, 19.2K, 16.8K, 14.4K, 12K, 9.6K, 7.2K, 4.8K, 2.4K, 1.2K, and 0–300 bps. Note: Under the 56K bps standards, you can asymmetrically download data from an ISP at speeds up to 53K bps, but upload only at speeds up to 33.6K bps. Clientto-client operation, including leased line operation, is also limited to 33.6K bps.
MultiModemII User Guide What Is in Your Modem Package? Your modem package has several components. Make sure you have them all before trying to operate your modem.
2 Quick Start
MultiModemII User Guide Introduction We know you are eager to get your MultiModemII up and running, so we’ll show you step-by-step how to set it up, check it out, and make your first calls.
2 Quick Start Step 1: Connect the Modem to Your System Turn off your computer. Placing the modem in a convenient location, connect it to your computer’s serial port, to the telephone line, to your leased line, to AC power, and, optionally, to your telephone. PHONE LINE LEASED EIA RS232C VOLUME POWER Figure 2-1. MT5600BL connections.
MultiModemII User Guide Two-Wire Leased Line Connection MT5600BA: Plug one end of a two-wire phone cable into the modem’s LINE jack, and connect the other end to a leased line wall jack or terminals. MT5600BL: Plug one end of a two-wire phone cable into the modem’s LEASED jack, and connect the other end to a leased line wall jack or terminals.
2 Quick Start Step 2: Install the Modem in Windows If you are using Windows 95, Windows 98, Windows NT 4.0, or Windows 2000, you must install the modem in the operating system. (If you are using another operating system, such as DOS or Windows 3.x, skip this step and go to step 3.) Adding the Modem to Windows 1. Click the Start button, point to Settings, and click Control Panel. 2. Double-click the Modems icon. If no modem is currently installed, the Install New Modem wizard appears.
MultiModemII User Guide 5. The next time you dial a HyperTerminal connection, it will select your new modem and ask you to confirm the selection. Step 3: Install and Configure Your Software Your Multi-Tech modem is controlled by communication software installed on your computer. If you wish to use software that is already installed, you should reconfigure it for your new modem; otherwise, install the Trio data and fax communications software provided with the modem. 1.
2 Quick Start To see what UART your serial port uses if you have Windows 3.1x, in Program Manager select File | Run, type MSD, and press ENTER. Select COM Ports to see the UART type. If you have Windows 95 or 98, select Start | Settings | Control Panel, and double-click on the Modems icon. In the Modems Properties dialog box, click the Diagnostics tab, click the port the modem is connected to, and click More Info to see the UART type. Note that both programs will identify a 14550 UART as an 8250A UART.
MultiModemII User Guide 12. Press ENTER until the main menu appears. From the main menu you have access to two areas: the File Menu and News. For help with menu commands, type ?. 13. In the Main Menu, type F and press ENTER to access the File Menu, then type D and press ENTER to download. 14. At the file name prompt, if you have Microsoft Word 6.0 or later, type register.doc and press ENTER. If you do not have Microsoft Word, type register.txt, and thenpress ENTER. 15. Press ENTER twice more. 16.
2 Quick Start 13. Press ENTER twice more. 14. Type Z and press ENTER to select the Zmodem transfer protocol. 15. The download begins automatically. As the file is copied to the HyperTerminal folder, a dialog box reports on the progress of the download. If the download fails, your baud rate may be set too high. Log off, set the COM port baud rate lower, and call again. 16. To log off the BBS, press ENTER, type G for “good-bye,” and press ENTER twice more. 17.
MultiModemII User Guide 12. To log off the BBS, press ENTER, type G for “good-bye,” and then press ENTER twice again. Step 5: Send a Fax To test your modem’s fax capabilities, send the completed registration file that you downloaded in “Step 4: Call the Multi-Tech BBS” to Multi-Tech or to a fax machine in your office. Trio Fax 1. Depending on which version of the registration file you downloaded, use either Microsoft Word or NotePad to open the registration file. 2.
2 Quick Start 4. Select Start | Programs | Accessories | Fax | Compose new fax. 5. The Compose New Fax wizard appears. Click Next. 6. If you are sending the registration form to your own fax machine or to another fax modem in your office, type the destination name and phone number in the To and Fax # boxes. If you are sending the registration form to our offices, type Multi-Tech Systems in the To box, and 612 785-9874 in the Fax # boxes. 7. Click Add to list, then click Next. 8.
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3 Using the Front Panel
MultiModemII User Guide Introduction Like any modem, your Multi-Tech modem operates only under the control of a communication program, such as the Trio DataFax program included with the modem. It also operates under other general-purpose data communication programs, such as Windows Terminal and HyperTerminal. For information on how to use the modem with the communication program of your choice, please refer to the program’s documentation.
3 Using the Front Panel Terminal Ready. The TR indicator lights when a communication program is using the modem. It means the modem is ready for an outgoing or incoming call. It goes off when the communication program disconnects the serial port. When it goes off, a connected modem will disconnect. Test Mode. The TM indicator lights when the modem is in test mode.
MultiModemII User Guide Menu Overview Trunks 20 Limbs Branches Twigs
3 Using the Front Panel Status Trunk The Status Trunk shows the current operating status of the modem. Limb changes are automatic, but certain options can be accessed by pressing the à button. Note that when the modem is online, pressing the à button shows the connect status, including the data speed, connection type, and compression type.
MultiModemII User Guide Basic Options Trunk Use the Basic Options Trunk to configure the modem’s basic operating conditions. When entering a number, use the áß and â buttons to scroll through a list of digits and characters. To go to the next position, press the à button. To back up or to exit without dialing, press the à button several times.
3 Using the Front Panel Advanced Options Trunk Use the Advanced Options Trunk to configure RS-232, dial backup, and callback security options. When entering a number or password, use the áß and â buttons to select a character or digit. To go to the next position, press the à button. To backspace or to exit, press the à button several times.
MultiModemII User Guide Remote Configuration Options Trunk Use the Remote Configuration Options Trunk to enable or disable remote configuration on the modem, and to change the password. When entering the password, use the áß and â buttons to scroll through the alphabet. To go to the next character position, press the à button. To backspace or to exit, press the à button several times. Limb Branches Twigs Diagnostic Options Trunk Use the Diagnostic Options Trunk to run loopback tests on the modem.
3 Using the Front Panel Phone Number Memory Options Trunk The MultiModemII can store up to four telephone numbers for speed dialing. Use the Phone Number Memory Options Trunk to store, list, and dial these numbers. When entering a number, use the áß and â buttons to scroll through the available digits and dialing commands. To go to the next position, press the à button. To backspace or to exit, press the à button several times.
MultiModemII User Guide Menu Options This section describes important LCD screens and options. Many, but by no means all, of the options have AT command equivalents. Status Status screens display the current status of the modem. Though limb changes are automatic, certain options can be selected by pressing the à button. STATUS = IDLE. The modem is ready but inactive. This screen appears when the modem is first turned on, and is the starting point for accessing all other screens.
3 Using the Front Panel Basic Options The following screens are used to configure the modem’s basic operating conditions. ONLINE OPTIONS. The following screens are used to configure the online operation of the modem: LINE TYPE OPTIONS. Use the à and Enter buttons to select from the following line types: dial-up (PSTN), two-wire leased line originate or answer, and four-wire leased line originate or answer. ERROR CORRECTION OPTIONS.
MultiModemII User Guide COMMAND MODE OPTIONS. The following screens are used to configure result code responses. ENABLE/DISABLE RESPONSE. Use the à and Enter buttons to enable or disable the sending of result codes to the computer. Same as the Q0 and Q1 commands. VERBOSE/TERSE RESPONSE. Use the à and Enter buttons to select verbose or terse result codes. Same as the V0 and V1 commands. SYNC/ASYNC OPTIONS. Use the à and Enter buttons to select the method of data transmission.
3 Using the Front Panel DIALBACKUP/LL OPTIONS. The following screens are used to configure dial backup for four-wire leased line operation. For more information, see Chapter 7, “Leased Line Operation.” DIAL BACKUP NUMBER. Use to enter a dial backup number. To scroll through a list of digits and characters, press the áß and â buttons. To go to the next position, press the à button. To back up or to exit without saving, press the à button several times. To save the number, press the Enter button.
MultiModemII User Guide Diagnostic Options Use the following screens to turn loopback tests on and off. For information about how to apply these tests, see Appendix C, “Loopback Tests.” ANALOG LOOPBACK. Press the à and Enter buttons to start the analog loopback test. The TEST IN PROGRESS screen appears. To stop the test, press the à and Enter buttons again. DIGITAL LOOPBACK. Press the à and Enter buttons to start the local digital loopback test. The TEST IN PROGRESS screen appears.
4 AT Commands, S-Registers & Result Codes
MultiModemII User Guide Introduction AT commands are used to control the operation of your modem. They are so called because each command must be preceded by the characters AT to get the ATtention of the modem. AT commands can be issued only when the modem is in command mode or online command mode. The modem is in command mode whenever it is not connected to another modem. The modem is in data mode whenever it is connected to another modem and ready to exchange data.
4 AT Commands, S-Registers, and Result Codes AT Commands Command: Values: Description: AT Command: Values: Description: ENTER Key n/a Press the ENTER or RETURN key to execute most commands. Command: Values: Description: A Answer n/a Answers an incoming call before the final ring. Command: Values: Description: A/ Repeat Last Command n/a Repeats the last command string. Do not precede this command with AT. Do not press ENTER to execute.
MultiModemII User Guide silence before processing the next part of the command. If silence is not detected within the time set in register S7, the modem returns a NO ANSWER or BUSY code. ^ Toggle data calling tone on or off. Applies only to current dialing attempt. $ Detect credit card “bong” tone. If the tone is not detected within the time specified by S7 (US models), the modem aborts the rest of the sequence and hangs up.
4 AT Commands, S-Registers, and Result Codes Command: Values: Default: Description: Ln Command: Values: Default: Description: Mn Command: Values: Default: Description: Nn L0 L1 L2 L3 M0 M1 M2 M3 N0 N1 Monitor Speaker Volume n = 0, 1, 2, or 3 1 Select low volume. Select low volume. Select medium volume. Select high volume. Monitor Speaker Mode n = 0, 1, 2, or 3 1 Speaker is always off. Speaker is on until the carrier signal is detected. Speaker is always on when the modem is off-hook.
MultiModemII User Guide Command: Values: Default: Description: Sr Command: Values: Default: Description: Sr=n Set Register Value r = S-register number; n varies None Sets value of register Sr to n, where n is entered in decimal format. E.g., S0=1. If the short form AT=n is used, the value is written to the last accessed S-register. Command: Values: Default: Description: Sr ? Read Register Value r = S-register number None Reads value of register Sr and display it in 3-digit decimal format. E.g.
4 AT Commands, S-Registers, and Result Codes Command: Values: Default: Description: Xn X0 X1 X2 X3 X4 Result Code Selection n = 0–4 4 This command selects which subset of the result messages will be used by the modem to inform the computer of the results of commands. Sends OK, CONNECT, RING, NO CARRIER, ERROR and NO ANSWER; does not look for dial tone or busy signal. Sends X0 messages and connect speed; does not look for dial tone or busy signal.
MultiModemII User Guide Command: Values: Default: Description: &Dn Data Terminal Ready (DTR) Control n = 0, 1, 2, or 3 2 This command interprets the high to low transition of the DTR signal sent by the computer according to the supplied parameter. The action taken depends on the current &Q setting. &D0 &Q0, &Q5, &Q6: DTR is ignored (assumed high). Allows operation with computers that do not provide DTR. &Q1, &Q4: DTR drop causes the modem to hang up. Autoanswer is not affected.
4 AT Commands, S-Registers, and Result Codes Command: Values: Default: Description: &Gn V.22bis Guard Tone Control n = 0, 1, or 2 0 (North America), 2 (elsewhere) &G0 Disables guard tone. &G1 Sets guard tone to 550 Hz. &G2 Sets guard tone to 1800 Hz. Note: The &G command is not used in North America, and may not be permitted in some countries.
MultiModemII User Guide Command: Values: Default: Description: &Qn Sync/Async Mode n = 0–3, 5, 6 5 This command is an extension of the &M command, and is used to control which connection modes are permitted. It is used in conjunction with S36 and S48. (See also the \N command.) &Q0 Selects direct asynchronous operation. See &M0. &Q1 Selects synchronous connect mode with asynchronous offline command mode. See &M1. (Serial interface operation only.
4 AT Commands, S-Registers, and Result Codes &T4 &T5 &T6 &T7 &T8 Enables acknowledgment for remote digital loopback request. Ignores acknowledgment for remote digital loopback request. Requests a remote digital loopback, V.54 Loop 2, without selftest. If no connection exists, ERROR is returned. The CONNECT XXXX message is displayed at the start of the test. Requests a remote digital loopback, V.54 Loop 2, with self-test. (In self-test, a test pattern is looped back and checked by the modem.
MultiModemII User Guide &X2 Command: Values: Default: Description: Selects slave receive timing. The modem derives the transmit clock signal from the incoming carrier and applies it to the TXCLK output at the serial interface &Yn Select Profile for Hard Reset n = 0 or 1 None &Y0 Select profile 0 to be loaded on power-up. &Y1 Select profile 1 to be loaded on power-up. Note: See also the &W and Z commands.
4 AT Commands, S-Registers, and Result Codes Command: Values: Default: Description: %Q Command: Values: Default: Description: %U %Q Line Signal Quality None None Reports line signal quality (DAA-dependent) as a three-digit number. Returns the higher order byte of the EQM value. Based on the EQM value, retrain or fallback/fall forward may be initiated if enabled by %E1 or %E2. PCM Code Selection n = 0 or 1 0 Specifies the PCM code type for 56K modulation.
MultiModemII User Guide \K0 \K1 \K2 \K3 \K4 \K5 \K0 \K1 \K2 \K3 \K4 \K5 Command: Values: Default: Description: \Nn \N0 \N1 \N2 \N3 \N4 \N5 Command: Values: Default: Description: \Vn \V0 \V1 44 Data mode. The modem receives the break from the remote modem during a non-error-corrected connection: Clear data buffers and send break to the computer. Same as \K0. Send break immediately to the computer. Same as \K2. Send break to the computer in sequence with the received data. Same as \K4.
4 AT Commands, S-Registers, and Result Codes Command: +MS= Modulation Selection Values: See description. Default: See description. Description: This extended-format command selects modulation and, optionally, enables or disables automode, specifies the lowest and highest connection rates, selects µ-Law or A-Law codec type, and specifies the highest transmit rate using one to five subparameters.
MultiModemII User Guide Modulation Possible rates (bps) 1 0 V.21 300 1 V.22 2 3 V.22bis V.23 1200 2400 or 1200 9 V.32 9600 or 4800 10 V.32bis 11 V.34 14400, 12000, 9600, 7200, or 4800 33600, 31200, 28800, 26400, 24000, 21600,19200, 16800, 14400, 12000, 9600, 7200, 4800, or 2400 12 2 V.90 56000, 54667, 53333, 52000, 50667, 49333, 48000, 46667, 45333, 44000, 42667, 41333.
4 AT Commands, S-Registers, and Result Codes Command: -SDR=n Values: Default: Description: Distinctive Ring Control 0–7 0 This command enables or disables detection and reporting of distinctive ring. One, two, or three distinctive ring types can be simultaneously enabled depending upon the value of n. The detected ring type is reported in the verbose result code by appending the ring type number to the end of the RING message. -SDR=0 Disables distinctive ring. Any valid ring detected is reported as RING.
MultiModemII User Guide Command: #CID=n Values: Default: Description: Caller ID n = 0, 1, or 2 0 Enables or disables Caller ID recognition and reporting. #CID=0 Disables Caller ID. #CID=1 Enables formatted Caller ID reporting of ICLID SDM (Single Data Message) and MDM (Multiple Data Message) packets. #CID=2 Enables unformatted Caller ID reporting of any ICLID packet received after the first RING cycle, including SDM, MDM, or call waiting packets. #CID? Retrieves the current Caller ID mode from the modem.
4 AT Commands, S-Registers, and Result Codes S-Registers Certain modem values, or parameters, are stored in memory locations called Sregisters. Use the S command to read or alter the contents of S-registers (see previous section). Register Unit Range Default Description S0 1 ring 0, 1–255 1 Sets the number of rings before the modem answers. ATS0=0 disables autoanswer completely. S1 1 ring 0–255 0 Counts the rings that have occurred.
MultiModemII User Guide Register Unit 50 Range Default Description S13 decimal 0, 1–127 42 (*) Sets the ASCII code for the remote configuration escape character. ATS13=0&W disables remote configuration. S15 minutes 10–255 30 Sets the length of time the modem waits after making a dial-up connection before it checks the lease line for restoral. S17 minutes 0–255 1 Sets the length of time the modem waits after after a lease line fails before it attempts a dial-up connection.
4 AT Commands, S-Registers, and Result Codes Register Unit S36 Range decimal 0–7 Default 7 Description LAPM Failure Control. Specifies the fallback action to take in the event of an LAPM negotiation failure. These fallback options are initiated immediately upon connection if S48 is set to 128. If an invalid number is entered, S36 acts as if the default value has been entered. (See S48.) 0 Modem disconnects. 1 Modem stays online and a direct mode connection is established. 2 Reserved.
MultiModemII User Guide Register Unit Range Default Description attempt to deliver data in the buffer until the connection is lost or the data is delivered. S46 decimal 136, 138 138 Enables or disables data compression: 136 Error correction without compression. 138 Error correction with compression. S48 decimal 0, 7, 128 7 Enables or disables LAPM negotiation. An invalid value is treated as a 128 value. 0 Disables negotiation and proceeds with LAPM. 7 Enables negotiation.
4 AT Commands, S-Registers, and Result Codes Result Codes In command mode your modem can send the following responses, called result codes, to your computer. Result codes are used by communications programs and can also appear on your monitor.
MultiModemII User Guide Terse Verbose 62 63 64 66 67 69 70 77 78 79 80 81 84 91 150 151 152 153 154 155 156 157 158 159 160 161 162 165 166 167 168 169 170 171 172 173 174 175 176 177 180 180 181 181 182 182 183 183 184 184 54 Description CONNECT 24000 Connected at 24000 bps CONNECT 26400 Connected at 26400 bps CONNECT 28800 Connected at 28800 bps COMPRESSION CLASS 5 Connected with MNP Class 5 data compression COMPRESSION V.42 bis Connected with V.
4 AT Commands, S-Registers, and Result Codes Terse Verbose Description 185 185 186 186 187 187 188 188 189 189 190 190 191 191 192 192 193 193 194 194 +F4 Connected at 37333 bps (V.90 mode) 37333 bps data carrier detected (V.90 mode) Connected at 38667 bps (V.90 mode) 38667 bps data carrier detected (V.90 mode) Connected at 41333 bps (V.90) 41333 bps data carrier detected (V.90) Connected at 42667 bps (V.90) 42667 bps data carrier detected (V.90) Connected at 45333 bps (V.
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5 Remote Configuration
MultiModemII User Guide Introduction Remote configuration is a network management tool that allows you to configure modems anywhere in your network from one location. With password-protected remote configuration, you can issue AT commands to a remote MultiModemII modem for maintenance or troubleshooting as if you were on-site. Basic Procedure The following steps are valid regardless of whether the connection is established by the local or the remote MultiModemII modem. 1.
5 Remote Configuration 3. To change the password, press áß or â to select the first character of the password, and then press à to go to the next character. Repeat until you have entered the entire password. 4. To cancel the new password, press à until the password is erased. To save the new password, press the Enter button. The next time you remotely configure the modem you must use the new password.
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6 Callback Security
MultiModemII User Guide Introduction This chapter describes how to use callback security with your modem. Callback security protects your network from unauthorized access and helps control long distance costs. When callback security is enabled, all callers are requested to enter a password. If the password is invalid, the caller can try twice more before the modem hangs up. If the password is valid, the modem hangs up and returns the call by dialing the phone number associated with the password.
6 Callback Security Front Panel Method 1. Turn on the modem. 2. Starting at the STATUS screen, press the following buttons on the front panel to turn callback security on and off: • To turn on callback security, press â, â, à, â, â, à, à to display the CALLBACK ON? option, and then press the Enter button to select the option. When remote callback security is turned on, each caller is asked to enter a password, then is disconnected and called back by the modem.
MultiModemII User Guide 7. Press the Enter button again to go to the PASSWORD SETUP screen. 8. Press à, à to go to the ENTER PASSWORD #2? screen. 9. Repeat steps 3–7 to enter the next password. 10. Repeat as many times as necessary, up to memory location 30, until all passwords have been entered. Warning: There is no way to review an entry to confirm that it has been entered correctly.
6 Callback Security 10. Repeat as many times as necessary, up to memory location 30, until all numbers have been entered. Warning: There is no way to review an entry to confirm that it has been entered correctly. If you attempt to look at a number entry by pressing the Enter button for an ENTER NUMBER #n? screen, it is possible for you to accidentally erase the entry. Calling Procedure Use the following procedure to call a modem that has callback security enabled.
MultiModemII User Guide Command: #CBPy=x Store Callback Password Values: y = 01–30 x = password (6–10 characters) Defaults: None Description: Stores callback security password x in memory location y. The password must have 6 to 10 characters.
6 Callback Security Callback Assignments Location 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Password Phone number 67
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7 Leased Line Operation
MultiModemII User Guide Introduction This chapter describes how to use the MultiModemII modem on a leased line. A leased line is a private, permanent, telephone connection between two points. Unlike normal dialup connections, a leased line is always active. The modems automatically connect when they are attached to the line and are turned on.
7 Leased Line Operation line. If the remote modem has not yet been configured for leased line operation, you may turn off the local modem until the remote one is ready. Four-Wire Setup 1. For four-wire leased line operation, connect one of the provided four-wire cables to the LEASED jack on the back of the MT5600BL modem. Connect the other end of the cable to a four-wire leased line jack or terminals supplied by the telephone company. 2. Turn on the modem. 3.
MultiModemII User Guide Dial Backup and Leased Line Restoral For four-wire leased line operation, the MT5600BL modem has dial backup, in which the modem is connected to a standard dial-up line as well as to the leased line. If the leased line fails, the originate modem automatically dials and connects to the answer modem through the standard telephone network. While it is in dial backup mode, the MT5600BL periodically checks the leased line to see if it is operational.
7 Leased Line Operation 9. Press the áß or â button several times to select the first digit in the number. 10. Press the à button to go to the next digit in the number. 11. Repeat steps 9 and 10 until you have entered a value between 10 and 255, and then press the Enter button to store it. The TIME STORED screen appears. 12. Press the Enter button to go to the TIME TO RESTORE (S15) screen. 13. To change the default dial backup time, press â, à, à. The ENTER TIME IN MINUTES screen appears. 14.
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8 Solving Problems
MultiModemII User Guide Introduction Your modem was thoroughly tested at the factory before it was shipped. If you are unable to make a successful connection, or if you experience data loss or garbled characters during your connection, it is possible that the modem is defective. However, it is more likely that the source of your problem lies elsewhere. The following symptoms are typical of problems you might encounter: • None of the LEDs light when the modem is on. • The modem does not respond to commands.
8 Solving Problems The Modem Does Not Respond to Commands 4 Make sure the modem is plugged in and turned on. (See “None of the Indicators 4 4 4 4 4 4 4 4 Light.”) Make sure you are issuing the modem commands from data communication software, either manually in terminal mode or automatically by configuring the software. (You cannot send commands to the modem from the DOS prompt.) Make sure you are in terminal mode in your data communication program, then type AT and press ENTER.
MultiModemII User Guide click Advanced, and select the new port address and/or interrupt. If you wish to use COM3 or COM4, note that COM3 shares an IRQ with COM1, as does COM4 with COM2, so you should change their IRQs to unused ones, if possible. Windows 9x: Right-click on My Computer, select Properties from the menu, click on the Device Manager tab, double-click on Ports, then double-click on the communication port your modem is connected to.
8 Solving Problems 4 behind a corporate phone system (PBX) with an internal dial tone that sounds different from the normal dial tone. In that case, the modem might not recognize the dial tone and might treat it as an error. Check your PBX manual to see if you can change the internal dial tone; if you can’t, change your modem’s initialization string to replace X4 with X3, which will cause the modem to ignore dial tones (note, however, that X3 is not allowed in some countries, such as France and Spain).
MultiModemII User Guide 4 4 4 Check for loose connections between the modem and the computer, the telephone jack, and AC power. You might have had a poor connection because of line conditions or the problem might have originated on the other end of the line. Try again. If you were online with a BBS or an online service like CompuServe, it might have hung up on you because of lack of activity on your part or because you exceeded your time limit for the day. Try again.
8 Solving Problems Data Is Being Lost 4 If you are using data compression and a high speed serial port, set the serial port 4 4 4 4 baud rate to four times the data rate. Your UART might not be reliable at serial port speeds over 9600 bps or 19,200 bps. Turn off data compression, reset your serial port speed to a lower rate, or replace your serial port with a faster one. Make sure the flow control method you selected in software matches the method selected in the modem.
MultiModemII User Guide Fax and Data Software Can’t Run at the Same Time 4 Communication devices can be accessed by only one application at a time. Under DOS or Windows 3.1x, you can run either your fax software or your datacomm software, but not both at the same time, unless you have a special communication device management application. In Windows 95, 98, and NT 4.0, you can have data and fax communication applications open at the same time, but they cannot use the same modem at the same time.
Appendixes
MultiModemII User Guide Appendix A: Regulatory Compliance FCC Part 68 Telecom 1. This equipment complies with part 68 of the Federal Communications Commission Rules. On the outside surface of this equipment is a label that contains, among other information, the FCC registration number. This information must be provided to the telephone company. 2. The suitable USOC jack (Universal Service Order Code connecting arrangement) for this equipment is shown below.
A Regulatory Compliance Manufacturer: Trade Name Model Number: FCC Registration No: Ringer Equivalence No: Modular Jack (USOC): Multi-Tech Systems, Inc. MultiModemII MT5600BA or MT5600BL AU7USA-33378-M5-E 0.1A RJ11C or RJ11W (single line) Service Center in USA: Multi-Tech Systems, Inc.
MultiModemII User Guide Canadian Limitations Notice Notice: The ringer equivalence number (REN) assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface. The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the ringer equivalence numbers of all the devices does not exceed 5. Notice: The Industry Canada label identifies certificated equipment.
A Regulatory Compliance EMC, Safety, and Terminal Directive Compliance The CE mark is affixed to this product to confirm compliance with the following European Community Directives: • Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws of Member States relating to electromagnetic compatibility; and • Council Directive 73/23/EEC of 19 February 1973 on the harmonization of the laws of Member States relating to electrical equipment designed for use within certain voltage limits; and •
MultiModemII User Guide Appendix B: Technical Specifications Your MultiModemII modem meets the following specifications: Trade Name MultiModemII™ Model Number MT5600BA and MT5600BL Server-to-Client Data Rates K56flex or V.90 speeds when accessing a K56flex or V.
B Technical Specifications Data Modulation FSK at 300 bps, PSK at 1200 bps, QAM at 2400, 4800, and 9600 bps (non-trellis), QAM with trellis-coded modulation (TCM) at 9600, 12,000, 14,400, 16,800, 19,200, 21,600, 24,000, 26,400, 28,800, 31,200, 33,600, and 56,000 bps Fax Modulation V.21 CH2 FSK at 300 bps (half duplex) V.27ter DPSK at 4800 and 2400 bps V.29 QAM at 9600 and 7200 bps V.17TCM at 14400, 12000, 9600, and 7200 bps Carrier Frequencies ITU-T V.
MultiModemII User Guide Receiver Sensitivity -43 dBm under worst-case conditions AGC Dynamic Range 43 dB Interface TIA/EIA RS-232C/ITU-T V.24/V.28 Connectors DB25F RS-232C connector; two RJ-11 phone jacks (BA model) or three RJ-11 phone jacks (BL model); power connector Cables One 14-foot RJ-11 phone cable (USA); country-specific cord for UK and International models; external power transformer and cord Note: Any cables connected to the computer should be shielded to reduce interference.
C Loopback Tests Appendix C: Loopback Tests Introduction Each time you turn on your modem, it performs an automatic self-test to ensure proper operation. Your modem also has three diagnostic tests: local analog loopback, remote digital loopback, and local digital loopback. These ITU-T V.54 loopback tests isolate telephone circuit and transmission problems. In a loopback test, data from your computer loops through the circuits of your modem and/or a remote modem before it appears on your monitor.
MultiModemII User Guide 3. Type AT&T1 and press ENTER. This places your modem in analog loopback mode in the originate mode. A CONNECT message should appear on your display. The modem is now out of command mode and in a pseudo-online mode. 4. Note that the CD and TM indicators are on. If they are not on, there is a defect in your modem. 5. Enter characters from your keyboard. For this test, typing multiple uppercase U characters is a good way to send an alternating test pattern of binary ones and zeros.
C Loopback Tests 3. Dial the remote modem and establish your online connection. 4. Type the escape sequence +++AT and press ENTERto bring your modem into online command mode. 5. Type AT&T6 and press ENTER. The local modem responds to this command by transmitting an unscrambled marking signal, which causes the remote modem to place itself in digital loopback mode. Then the local modem exits online command mode and enters data mode. 6. Enter data from your keyboard.
MultiModemII User Guide 2. Dial the remote modem and establish your online connection. 3. Type the escape sequence +++AT and press ENTER to bring your modem into online command mode. 4. Type AT&T3 and press ENTER. Once you receive an OK message from your modem (if responses are enabled), your modem is placed in digital loopback mode. 5. Have someone enter data from the remote keyboard.
C Loopback Tests 6. Enter data from your keyboard. Typing multiple uppercase U characters is a good way to send an alternating test pattern of binary ones and zeroes. Data received by the remote modem enters its analog receiver, is converted to digital data, is reconverted into analog, and then is transmitted back to your modem. Your modem passes this test if the data received on your monitor is the same as the data entered from your keyboard. 7. To exit the test, turn off the modems. Jumper pins 2 and 3.
MultiModemII User Guide Appendix D: Warranty, Service, and Technical Support Limited Warranty Multi-Tech Systems, Inc. (MTS) warrants that this product will be free from defects in material or workmanship for a period of ten years from the date of purchase or, if date of purchase is not provided, ten years from the date of shipment (limited to customers in the U.S., Canada, Mexico, and United Kingdom).
D Warranty, Service, and Technical Support Technical Support Multi-Tech Systems has an excellent staff of technical support personnel available to help you get the most out of your Multi-Tech product. If you have any questions about the operation of this unit, please call 800 972-2439 (USA and Canada) or 612 785-3500 (international and local). Please have modem information available. You can also contact Technical Support via the following URL: http://www.multitech.com/_forms/email_tech_support.
MultiModemII User Guide 5. Select a file transfer protocol by typing the indicated letter, such as Z for Zmodem (the recommended protocol). 6. If you select Zmodem, the transfer begins automatically. If you select another protocol, you might have to initiate the transfer yourself. (In most communication programs, the PAGE DOWN key initiates the download.) 7. When the download is complete, press ENTER to return to the File Menu. 8. To exit the BBS, type G and press ENTER. If you don’t know the file name 1.
D Warranty, Service, and Technical Support Ordering Modem Accessories SupplyNet, Inc., can supply you with replacement transformers, cables and connectors for select Multi-Tech products. You can place an order with SupplyNet via mail, phone, fax or the Internet at the following addresses: Mail: SupplyNet, Inc. 614 Corporate Way Valley Cottage, NY 10989 Phone: Fax: Email: Internet: (800) 826-0279 (914) 267-2420 info@thesupplynet.com http://www.thesupplynet.com SupplyNet Online Ordering Instructions 1.
MultiModemII User Guide Appendix E: Upgrading the Modem Introduction Your modem is controlled by semi-permanent software, called firmware, that is stored in flash memory. Firmware is nonvolatile; that is, it remains stored in memory when the modem is turned off. However, it can be changed by either the manufacturer or the user as bugs are fixed or new features are added.
E Upgrading the Modem Step 2: Identify the Current Firmware Version Identify the current version of the firmware at the Multi-Tech Web site or BBS. If your modem already has the current firmware, there is no need to update it. Multi-Tech Web Site 1. Using your favorite Web browser, go to http://www.multitech.com/support/firmware/. 2. Scroll down to the table with your modem model number (non-USA firmware must be obtained directly from the ftp site or BBS at this time). 3.
MultiModemII User Guide Step 3: Download the Upgrade File Multi-Tech Web Site 1. If you are not already at the Firmware page of the Multi-Tech Web site, follow the procedure in “Step 2: Identify the Current Firmware.” 2. Click on the upgrade file name for your modem, and save the file to a temporary location on your hard disk. Multi-Tech BBS 1. If you have not already found the upgrade file for your modem on the MultiTech BBS, follow the procedure in “Step 2: Identify the Current Firmware.” 2.
E Upgrading the Modem Step 6: Upgrade the Modem’s Firmware Before you begin the following procedure, read the README.TXT file extracted from the upgrade archive file. Note the file name for the boot code (e.g., 2MBPFL11.S37) and the file name for the new firmware (e.g., 5600BA.S37). 1. Run a terminal program, such as HyperTerminal. The program must be able to send a file as ASCII text. 2. Make sure hardware flow control is selected.
MultiModemII User Guide Appendix F: Cable Pinouts RS-232 Pinouts DTE DB-25 connector DCE DB-25 connector 2 3 4 5 6 7 8 20 22 TD 2 RD 3 RTS 4 CTS 5 DSR 6 GND 7 CD 8 DTR 20 RI 22 TD RD RTS CTS DSR GND CD DTR RI Figure F-1. 25-pin to 25-pin RS-232 cable. DTE DB-9 connector TD RD RTS CTS DSR GND CD DTR RI 3 2 7 8 6 5 1 4 9 Figure F-2. 9-pin to 25-pin RS-232 cable.
F Cable Pinouts DCE DB-25 connector DTE Mini-DIN 8-pin connector TxD- 2 3 4 5 6 7 8 20 22 SG, RxD+ RxD- 6 7 8 3 4 5 1 2 HSKi (CTS) HSKo (RTS) TD RD RTS CTS DSR GND CD DTR RI Figure F-3. Macintosh cable. Leased Line Pinouts 2345 2 3 4 5 Red (Tip) Green (Ring) RJ-11 Modular Plug To Terminal Block Screws Figure F-4. Two-wire leased line cable. 2345 3 4 2 5 Red Transmit Pair Green Yellow Receive Pair Black RJ-11 Modular Plug To Terminal Block Screws Figure F-5. Four-wire leased line cable.
MultiModemII User Guide Appendix G: ASCII Character Map 106 Ctrl @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ Code NUL SOH STX ETX EOT ENQ ACK BEL BS HT LF VT FF CR SO SI DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN EM SUB ESC FS GS RS US Hex Dec 00 0 01 1 02 2 03 3 04 4 05 5 06 6 07 7 08 8 09 9 0A 10 0B 11 0C 12 0D 13 0E 14 0F 15 10 16 11 17 12 18 13 19 14 20 15 21 16 22 17 23 18 24 19 25 1A 26 1B 27 1C 28 1D 29 1E 30 1F 31 NUL SOH STX ETX EOT ENQ ACK BEL BS HT LF Null, or all zeros Start
Index
MultiModemII User Guide A abort timer 49 adding the modem to Windows 9 advanced menu options 28–30 Advanced Options Trunk 23 analog loopback test 30, 91–92 Answer command 33 ASCII character map 106 AT commands 3, 32–48 #CBN= 29, 47, 65 #CBP= 29, 66 #CID= 30, 48 #DB 29, 48, 65 $SB 48 %C 42 %E 42 %L 42 %Q 43 %U 43, 46 &C 28, 37 &D 10, 28, 38 &E 38 &F 10, 38 &G 39 &K 39 &M 39, 44 &Q 40, 44 &R 28, 40 &S 40 &T 40 &V 41 &W 10, 41, 59 &X 41 &Y 42 &Z= 30, 42 ** 47 +++AT 48 +MS= 45 +MS=? 45 +MS? 45 -K 44, 46 -SDR 47
Index DTE rate 10 DTR (Data Terminal Ready) AT command 10, 38 menu options 23, 28 operating mode 39 timeout (S25) 50 DTR dialing 22, 42 E Echo Command Mode Characters command 34 ENTER key 33 error control, setting 52 error correction 3 disabling 92, 93 menu options 22 mode selection command 44 escape character 49 escape sequence 32, 48 escape sequence guard time (S12) 49 F fallback 35 fax 3 fax communications 14 FCC regulations 84–85, 85 firmware displaying version 34 upgrading 100–103 flash dial modifier
MultiModemII User Guide S S-registers 49–52 reading 36 S00 10, 30, 49 S01 49 S02 49 S03 49 S04 49 S05 49 S06 49 S07 49 S08 49 S09 49 S10 49 S11 49 S12 49 S13 50, 59 S14 39 S15 29, 50, 72, 73 S17 29, 50, 72, 73 S18 40, 50 S24 50 S25 39 S26 50 S29 50 S30 50 S32 50 S33 50 S35 50 S36 40, 44, 51 S37 51 S38 51 S46 52 S48 40, 44, 52 S86 52 S95 44, 52 setting 36 safety 6 Select Maximum MNP Block Size command 43 Select Profile command 42 serial cable 77 serial port 10, 48, 77, 78, 81 Serial Port Baud Rate command 48
