Black Box MD403A manual

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Table of contents for the manual

  • Page 1

    CUSTOMER SUPPORT INFORMATION Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500 ) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mailing address: Black Box Corporation , 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com MARCH 200[...]

  • Page 2

    1 FCC AND IC RFI ST A TEMENTS FEDERAL COMMUNICA TIONS COMMISSION AND INDUSTR Y CANADA RADIO FREQUENCY INTERFERENCE ST A TEMENTS Class B Digital Device. This equipment has been tested and found to comply with the limits for a Class B computing device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection aga[...]

  • Page 3

    2 POR T ABLE USB MODEM EMC, Safety and R&TTE 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 o[...]

  • Page 4

    3 FCC REQUIREMENTS FOR TELEPHONE-LINE EQUIPMENT FCC Requirements for T elephone-Line Equipment 1. The Federal Communications Commission (FCC) has established rules which permit this device to be directly connected to the telephone network with standardized jacks. This equipment should not be used on party lines or coin lines. 2. If this device is m[...]

  • Page 5

    4 POR T ABLE USB MODEM Certification Notice for Equipment Used in Canada The Industry Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications-network protective, operation, and safety requirements. Industry Canada does not guarantee the equipment will operate to the user’s satisfac[...]

  • Page 6

    5 NOM ST A TEMENT NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY ST A TEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura. 3. Todas las advertencias [...]

  • Page 7

    6 POR T ABLE USB MODEM 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos do[...]

  • Page 8

    7 TRADEMARKS USED IN THIS MANUAL TRADEMARKS USED IN THIS MANUAL America Online is a registered trademark of Quantum Computer Services, Inc. AT&T is a registered trademark of AT&T. MNP is a registered trademark of Microcom Systems Incorporated. UL is a registered trademark of Underwriters’ Laboratories Incorporated. Microsoft, Windows, and[...]

  • Page 9

    8 POR T ABLE USB MODEM Contents Chapter Page 1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 10

    9 CONTENTS Chapter Page 5. Remote Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 5.2 Basic Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 11

    10 POR T ABLE USB MODEM 1. Specifications Client-to-Server Data Rates: V.90 or K56flex speeds when accessing an ISP type V.90 or K56flex server (actual speed depends on server capabilities/line conditions) Client-to-Client Data Rates: 33,600, 31,200, 28,800, 26,400, 24,000, 21,600, 19,200, 16,800, 14,400, 12,000, 9600, 7200, 4800, 2400, 300 bps Fax[...]

  • Page 12

    11 CHAPTER 1: Specifications Carrier Frequencies ITU-T V.34: 1600, 1646, 1680, 1800, 1829, 1867, 1920, 1959, 2000 Hz Carrier Frequencies ITU-T V.32bis/V.32: 1800 Hz Carrier Frequencies V.22bis/V.22 or Bell 212A Standard (2400 and 1200 bps): Transmit originate: 1200 Hz; Transmit answer: 2400 Hz; Receive originate: 2400 Hz; Receive answer: 1200 Hz Ca[...]

  • Page 13

    12 POR T ABLE USB MODEM Indicators: LEDs for Data, Carrier Detect, Off-Hook, Terminal Ready Temperature Tolerance: 32 to 120°F (0 to 50°C) Humidity: 20 to 90%, noncondensing Size: 1"H x 1.25"W x 3.1"D (2.5 x 3.2 x 7.9 cm) Weight: 2.2 oz. (62 g)[...]

  • Page 14

    13 CHAPTER 2: Introduction 2. Introduction 2.1 Overview The Portable USB Modem incorporates V.90 technology, which enables Internet connections at data rates up to 56 kbps* over standard telephone lines. V.90 technology sends data downstream from the Internet to your computer at these speeds because data on the telephone network typically is conver[...]

  • Page 15

    14 POR T ABLE USB MODEM 2.2 What the Package Includes Your package should include the following items: • Portable USB Modem • (1) CD-ROM • (1) RJ-11 telephone cable • (1) Quick Start Guide If anything is missing or damaged, please call Black Box at 724-746-5500. You must supply: • A computer with an unused USB port. • A nearby telephone[...]

  • Page 16

    15 CHAPTER 2: Introduction Other uses include direct links to colleagues with modems, to banks, and to service bureaus. You can also telecommute with your fax modem—work at home while communicating with the office by modem or fax. And of course, you can use your modem to exchange faxes with any fax machine in the world, enabling you to communicat[...]

  • Page 17

    16 POR T ABLE USB MODEM 2.5.2 F AX • Supports V.17, Group 3 fax communication standards, allowing it to communicate with other fax modems as well as with fax machines. • Responds to EIA/TIA Class 1 and 2 fax commands. • Sends and receives faxes from your computer at 14,400 bps, 9600 bps, 7200 bps, 4800 bps, 2400 bps, or 300 bps. 2.5.3 R EQUIR[...]

  • Page 18

    17 CHAPTER 2: Introduction 2.6 Connections To use your modem, you must connect its USB cable connector to your computer (“USB”) and to a telephone line (“LINE”). Figure 2-1. USB and communications connectors. 2.6.1 C ONNECTING TO THE C OMPUTER (“USB”) Connect the USB connector on the Modem to a USB connector on the back of your computer[...]

  • Page 19

    18 POR T ABLE USB MODEM 2.7 Front Panel The Portable USB Modem has four LEDs on the front panel indicating status, configuration, and activity. Figure 2-2. Front panel. • Data. The Data LED flashes when the modem is transmitting/receiving data to/from another modem. • Carrier Detect. The CD LED lights when the modem detects a valid carrier sign[...]

  • Page 20

    19 CHAPTER 3: Installation 3. Installation W ARNING 1. Never install telephone wiring during a lightning storm. 2. Never install a telephone jack in wet locations unless the jack is specifically designed for wet locations. 3. This product is to be used with UL ® and cUL listed computers. 4. Never touch uninsulated telephone wires or terminals unle[...]

  • Page 21

    20 POR T ABLE USB MODEM 3.1.1 USB C ONNECTION Plug the USB cable connector on the Portable USB Modem into a USB port connector on your computer. 3.1.2 L INE C ONNECTION Plug one end of the phone cable into the Portable USB Modem’s LINE jack and the other end into a phone line wall jack. NOTE The Federal Communications Commission (FCC) and Industr[...]

  • Page 22

    21 CHAPTER 3: Installation 3. Windows will detect that the new modem is present and indicate that it’s in the process of installing. The Welcome screen of the Found New Hardware Wizard appears. Figure 3-2. W elcome screen. Click Next > .[...]

  • Page 23

    22 POR T ABLE USB MODEM 4. The Install Hardware Device Drivers screen appears, indicating that it will install the hardware device drivers. Figure 3-3. Install Hardwar e Device Drivers screen. Verify that “Search for a suitable driver for my device (recommended)” is selected, and click Next > . Portable USB Modem[...]

  • Page 24

    23 CHAPTER 3: Installation 5. The Locate Driver Files screen appears and asks where you want Windows to search for the driver files. Figure 3-4. Locate Driver Files screen. Verify that the “Specify a location” option is the only box selected, place the Modem Installation CD into your CD drive, and click Next > . 6. The next screen will say ?[...]

  • Page 25

    24 POR T ABLE USB MODEM 7. The Driver Files Search Results screen appears, indicating that Windows has found the proper driver from the Modem Installation CD. Figure 3-5. Driver Files Search Results scr een. Click Next > to install the selected driver. Portable USB Modem[...]

  • Page 26

    25 CHAPTER 3: Installation 8. The Digital Signature Not Found screen appears. Figure 3-6. Digital Signature Not Found scr een. Click Yes to continue with the installation. NOTE This Microsoft ® operating system searches for a digital signature when you install any new hardware. If a “Digital Signature Not Found” screen appears, simply click th[...]

  • Page 27

    26 POR T ABLE USB MODEM 9. A Copying Files screen appears briefly, indicating that driver files are being copied to your computer’s hard drive. Then a completion screen appears and tells you that Windows has finished installing the driver. Figure 3-7. Completion screen. Click Finish to complete the installation and exit the wizard.[...]

  • Page 28

    27 CHAPTER 3: Installation 3.2.2 I NSTALLATION IN W INDOWS M E The Portable USB Modem driver files for Windows Me are installed in two groups, as described below. The installation wizard begins by installing certain driver files. At that point, Windows Me detects the modem as a new device. Then the installation wizard runs again to install the rema[...]

  • Page 29

    28 POR T ABLE USB MODEM 9. At the next screen (the Add New Hardware Wizard “Windows will search for new drivers…” screen), uncheck the “Removable Media” button (if necessary), and check “Specify a location.” Click Next> . 10. Transient screens will appear while files are being copied. The Add New Hardware Wizard “Windows driver f[...]

  • Page 30

    29 CHAPTER 3: Installation 3.2.3 I NSTALLATION IN W INDOWS 98 1. Power up your Windows 98 system. 2. If you have not already done so, connect a) the modem to your computer’s USB port and b) the telephone line to your modem and a telephone wall jack. 3. Windows will detect that the new modem is present and launch the Add New Hardware Wizard dialog[...]

  • Page 31

    30 POR T ABLE USB MODEM 5. The Add New Hardware Wizard dialog box appears with the message “What do you want Windows to do?” Figure 3-9. What do you want Windows to do? screen. Verify that the “Search for the best driver for your device (Recommended)” option is selected, and click Next > . 6. The Add New Hardware Wizard dialog box is dis[...]

  • Page 32

    31 CHAPTER 3: Installation Figure 3-10. Windows will search for a new driver screen. Verify that the “CD-ROM drive” option is selected, and click Next > . 7. The Add New Hardware Wizard dialog box indicates that Windows has found an updated driver for this device, and also some other drivers that should work with this device.[...]

  • Page 33

    32 POR T ABLE USB MODEM Figure 3-11. Updated driver found screen. Verify that the “Updated driver (Recommended)” option is selected, and click Next > . Portable USB Modem[...]

  • Page 34

    33 CHAPTER 3: Installation 8. The Add New Hardware Wizard dialog box indicates that Windows will select the proper driver from the Modem Installation CD and will display the information for verification. Figure 3-12. V erification screen. Click Next > to install the selected driver. Portable USB Modem[...]

  • Page 35

    34 POR T ABLE USB MODEM 9. Once the files have been copied to your PC, the Add New Hardware Wizard dialog box appears. It indicates that Windows has finished installing the driver. Figure 3-13. Finish screen. Click Finish to complete the installation and exit the wizard. The TR LED on your modem will light when the installation is complete. Remove [...]

  • Page 36

    35 CHAPTER 3: Installation 3.2.4 R EMOVING Y OUR O LD M ODEM FROM W INDOWS When your new modem replaces another modem, the old modem installation remains in Windows even after you install the new modem. The old modem will be selected in HyperTerminal and other Windows applications. Although you can change the application connection descriptions one[...]

  • Page 37

    36 POR T ABLE USB MODEM 3.3 Step 3: Configuring the Modem for Y our Countr y Different countries have different requirements for how modems must function. Therefore, before you use the modem, you must configure it to match the defaults of the country in which you are using it. You can configure the modem either manually using AT commands or with th[...]

  • Page 38

    37 CHAPTER 3: Installation 4. The modem will respond “OK.” 5. Type ATI9 (this verifies that country code has been chosen). Press Enter . 6. The modem will display the country code in decimal format followed by an “OK.” 7. Check to be sure the code for your country is displayed. If not, repeat procedure to correct. Here are two examples of c[...]

  • Page 39

    38 POR T ABLE USB MODEM 4. A T Commands, S-Registers, and Result Codes 4.1 A T Commands 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.[...]

  • Page 40

    39 CHAPTER 4: A T Commands, S-Registers, and Result Codes You can issue several commands in one line, in what is called a command string. The command string begins with AT and ends when you press ENTER. Spaces to separate the commands are optional; they are ignored by the command interpreter. The most familiar command string is the initialization s[...]

  • Page 41

    40 POR T ABLE USB MODEM Command: C n Carrier Control Values: n =1 Default: 1 Description: C0 Transmit carrier always off. (Not supported.) C1 Normal transmit carrier switching (included for backward compatibility with some software). Command: D s Dial Values: s =dial string (phone number and dial modifiers) Default: none Description: Dial telephone[...]

  • Page 42

    41 CHAPTER 4: A T Commands, S-Registers, and Result Codes Command: DS= y Dial Stored Telephone Number Values: n =0–1 Default: none Description: Dial a number previously stored in directory number y by the &Zy=x command. Example: ATDS=1 Command: E n Echo Command Mode Characters Values: n =0 or 1 Default: 1 Description: E0 Do not echo keyboard [...]

  • Page 43

    42 POR T ABLE USB MODEM I9 Display the country code (for example, NA Ver. 1 ). I11 Display diagnostic information for the last modem connection, such as DSP and firmware version, link type, line speed, serial speed, type of error correction/data compression, number of past retrains, etc. Command: M n Monitor Speaker Mode Values: n =0, 1, 2, or 3 De[...]

  • Page 44

    43 CHAPTER 4: A T Commands, S-Registers, and Result Codes Command: Q n Result Codes Enable/Disable Values: n =0 or 1 Default: 0 Description: Q0 Enable result codes. Q1 Disable result codes. Q2 Returns an OK for backward compatibility with some software. Command: S r = n Set Register Value Values: r =S-register number; n varies Default: None Descrip[...]

  • Page 45

    44 POR T ABLE USB MODEM Command: X n Result Code Selection Values: n =0–7 Default: 4 Description: X0 Basic result codes (for example, CONNECT ); does not look for dial tone or busy signal. X1 Extended result codes (for example, CONNECT 46000 V42bis ); does not look for dial tone or busy signal. X2 Extended result codes with NO DIALTONE ; does not[...]

  • Page 46

    45 CHAPTER 4: A T Commands, S-Registers, and Result Codes Command: &C n Data Carrier Detect (DCD) Control Values: n =0 or 1 Default: 1 Description: &C0 Forces the DCD circuit to be always high. &C1 DCD goes high when the remote modem’s carrier signal is detected, and goes low when the carrier signal is not detected. &C2 DCD drops [...]

  • Page 47

    46 POR T ABLE USB MODEM Command: &K n Flow Control Selection Values: n =0, 3, or 4 Defaults: 3 Description: &K0 Disable flow control. &K3 Enable CTS/RTS hardware flow control. &K4 Enable X-ON/X-OFF software flow control. Command: &Q n Asynchronous Communications Mode Values: n =0, 5, 6, 8, or 9 Default: 5 Description: &Q0 As[...]

  • Page 48

    47 CHAPTER 4: A T Commands, S-Registers, and Result Codes Command: &V Display Current Settings Values: n/a Description: Displays the active modem settings, including the callback security settings if callback security is enabled. If the setup password has been entered, it also displays the callback security passwords. Command: &W n Store Cu[...]

  • Page 49

    48 POR T ABLE USB MODEM Command: B n Transmit Break Values: n =0–9 in 100-ms units Default: 3 Description: In non-error-correction mode only, sends a break signal of the specified length to a remote modem. Works in conjunction with the K command. Command: G n Modem Port Flow Control Values: n =0 Default: 0 Description: G0 Returns an OK for ba[...]

  • Page 50

    49 CHAPTER 4: A T Commands, S-Registers, and Result Codes Data mode. The modem receives the break from the remote modem: K0 Clear data buffers and send break to the computer. K1 Same as K0 . K2 Send break immediately to the computer. K3 Same as K2 . K4 Send break to the computer in sequence with the received data. K5 Same as K4 . Online co[...]

  • Page 51

    50 POR T ABLE USB MODEM Command: Q n Flow Control Selection Values: n =0, 1, or 3 Default: 3 Description: Q0 Disable flow control (same as &K0 ). Q1 X-ON/X-OFF software flow control (same as &K4 ). Q2 CTS-only flow control. Not supported. Q3 RTS/CTS hardware flow control (same as &K3 ). Command: T n Inactivity Timer Values: n =0, [...]

  • Page 52

    51 CHAPTER 4: A T Commands, S-Registers, and Result Codes Command: %A Adaptive Answer Result Code Enable Values: n =0 or 1 Defaults: 0 Description: The %A command controls whether the DATA and FAX result codes will be sent by the modem. The modem must be in fax mode for this command to work. Also, the modem must be set to +FAA=1 which enables the m[...]

  • Page 53

    52 POR T ABLE USB MODEM Command: #S= x Store Setup Password Values: x =password (1–8 characters, case-sensitive) Default: blackbox Description: Stores a new remote configuration setup password. Command: +++AT<CR> Escape Sequence Values: n/a Description: Puts the modem in command mode (and optionally issues a command) while remaining online.[...]

  • Page 54

    53 CHAPTER 4: A T Commands, S-Registers, and Result Codes 4.2 S-Registers Certain modem values, or parameters, are stored in memory locations called S-registers. Use the S command to read or to 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 until the [...]

  • Page 55

    54 POR T ABLE USB MODEM Register Unit Range Default Description S7 seconds 1–255* 50* Sets the time the modem waits for a carrier signal before aborting a call. Also sets the wait for silence time for the @ dial modifier. S8 seconds 0–65 2 Sets the length of a pause caused by a comma character in a dialing command. S9 decimal 0, 1–127 37(%) S[...]

  • Page 56

    55 CHAPTER 4: A T Commands, S-Registers, and Result Codes Register Unit Range Default Description S35 decimal 0–1 0 0 disables, 1 enables the V.25 data calling tone, which allows remote data/fax/voice discrimination. S36 decimal 0–7 7 Specifies the action to take if negotiation fails when error control is selected. (See S48 .) S37 decimal 0–1[...]

  • Page 57

    56 POR T ABLE USB MODEM Register Unit Range Default Description S38 decimal 0–23 1 Sets downstream data rate where K56flex provides rates of 32,000 to 56,000 bps in 2000 bps increments. V.90 provides rates of 28,000 to 56,000 bps in increments of 1333 bps. 0 = V.90 disabled 1 = V.90 autorate K56flex rates 2 = 28,000 bps 2 = 32,000 bps 3= 29,333 b[...]

  • Page 58

    57 CHAPTER 4: A T Commands, S-Registers, and Result Codes Register Unit Range Default Description S42 decimal 0–1 1 Enables/disables the 56 kbps auto rate. When 56 kbps is disabled, fallback to V.34 is also disabled. 0=disable; 1=enable. S43 decimal 0–1 1 For testing and debugging only. Enables/disables V.32bis start-up auto mode operation. 0=d[...]

  • Page 59

    58 POR T ABLE USB MODEM Register Unit Range Default Description S109 decimal 0–2 1 Sets one of three 56-kbps operating modes: K56flex mode, V.90 mode, or Auto- mode. S109=2 forces V.90 connections for testing purposes, etc. S109 sets the 56-kbps operating mode as shown below: 0=V.90 disabled 1=K56flex or V.90 (Dual mode enabled) 2=V.90 only (K56f[...]

  • Page 60

    59 CHAPTER 4: A T Commands, S-Registers, and Result Codes Terse Verbose Description 10* CONNECT 2400 Connected at 2400 bps 11* CONNECT 4800 Connected at 4800 bps 12* CONNECT 9600 Connected at 9600 bps 13* CONNECT 14400 Connected at 14,400 bps 14* CONNECT 19200 Connected at 19,200 bps 24* CONNECT 7200 Connected at 7200 bps 25* CONNECT 12000 Connecte[...]

  • Page 61

    60 POR T ABLE USB MODEM Terse Verbose Description 88 DELAYED Delay is in effect for the dialed number 89 BLACKLISTED Dialed number is blacklisted 90 BLACKLIST FULL Blacklist is full 100 CONNECT 28000 Connected at 28,000 bps, V.90 rate 101 CONNECT 29333 Connected at 29,333 bps, V.90 rate 102 CONNECT 30666 Connected at 30,666 bps, V.90 rate 103 CONNE[...]

  • Page 62

    61 CHAPTER 5: Remote Configuration 5. Remote Configuration 5.1 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 Portable USB Modem for maintenance or troubleshooting as if [...]

  • Page 63

    62 POR T ABLE USB MODEM 5.3.1 C HANGING THE S ETUP P ASSWORD 1. Open a data communications program such as HyperTerminal. 2. In the terminal window, type AT#Sblackbox (or AT#S yyyyyy if you have replaced the blackbox password with yyyyyy) and press ENTER. The modem responds with OK if the setup password is correct and ERROR if it is wrong. 3. To ch[...]

  • Page 64

    63 CHAPTER 6: T roubleshooting 6. T roubleshooting 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, the modem might be defective. However, it is more likely that the source of your problem lies elsewh[...]

  • Page 65

    64 POR T ABLE USB MODEM • Try resetting your modem by unplugging the USB cable from the modem, and then plugging it back in. • Try rebooting the computer. • The modem might be defective. If you have another Portable USB Modem, try swapping modems. If the problem goes away, the first modem is possibly defective. Call Tech Support for assistanc[...]

  • Page 66

    65 CHAPTER 6: T roubleshooting • If the modem reports BUSY, the other number might be busy, in which case you should try again later, or it might indicate that you have failed to add a 9, prefix to the phone number if you must dial 9 for an outside line. If you must dial 9 to get an outside line, the easiest way to dial it automatically is to inc[...]

  • Page 67

    66 POR T ABLE USB MODEM • If you have extension phones on the same line as your modem, you or someone else can interrupt the connection by picking up another phone. If this is a frequent problem, disconnect the extension phones before using the modem, or install another phone line especially for the modem. • Check for loose connections between [...]

  • Page 68

    67 CHAPTER 6: T roubleshooting 6.8 Calling Black Box If you determine that your Portable USB Modem is malfunctioning, do not attempt to alter or repair the unit. It contains no user-serviceable parts. Contact Black Box at 724-746-5500. Before you do, make a record of the history of the problem. We will be able to provide more efficient and accurate[...]

  • Page 69

    68 POR T ABLE USB MODEM Appendix A. V .90 Suppor t A.1 Introduction V.90 is the ITU designation for what had been formerly called V.pcm. The ITU recommendation V.90 was determined at a meeting in Geneva ending February 6, 1998. V.90 will replace K56flex and other proprietary solutions for PCM connections. Dual-mode client modem code will be importa[...]

  • Page 70

    69 APPENDIX B: Loopback T ests Appendix B. Loopback T ests B.1 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[...]

  • Page 71

    70 POR T ABLE USB MODEM B.2 Local Analog Loopback T est (V .54 Loop 3) In this test, data from your computer or terminal is sent to your modem’s transmitter, converted into analog form, looped back to the modem’s receiver, converted into digital form, and then sent to your monitor for verification. No connection to the phone line is required. F[...]

  • Page 72

    71 APPENDIX B: Loopback T ests 6. Your modem passes this test if the data received on your monitor are the same as the data entered from your keyboard. If different data appear on your monitor, your modem is probably causing the problem, though it could also be your computer. If your modem passes this test, but you are receiving errors while on lin[...]

  • Page 73

    72 POR T ABLE USB MODEM 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. For this test, typing multip[...]

  • Page 74

    73 APPENDIX B: Loopback T ests T EST P ROCEDURE 1. Open your communications software and go into terminal mode. Type AT and press ENTER; you should get an OK message. Type ATN and press ENTER to disable error correction. 2. Dial the remote modem and establish your online connection. 3. Type the escape sequence +++AT and press ENTER to bring your m[...]

  • Page 75

    74 POR T ABLE USB MODEM Appendix C. Dial-Up Networking Microsoft’s Dial-Up Networking (DUN) is a system component of Windows 98 and 2000 that enables you to connect your computer to a variety of computer systems and networks, including the Internet. Dial-Up Networking has been integrated into Windows 2000. If you are using Windows 98, you may nee[...]

  • Page 76

    75 APPENDIX C: Dial-Up Networking C.1 Windows 98/Me Dial-Up Networking NOTE Before beginning, make certain Dial-Up Networking and TCP/IP are installed on your computer. 1. To begin your set up: In Windows 98/Me, go to Start | Programs | Accessories | Communications | Dial-Up Networking . 2. If this is the first time you have set up a connection wit[...]

  • Page 77

    76 POR T ABLE USB MODEM with this connection (your ISP’s access phone number). Figure C-2. Make New Connection dialog box, entering phone number . Click Next> . 5. The Make New Connection dialog box is displayed indicating you have successfully created a new Dial-Up connection. Figure C-3. Dial-Up connection created. Click Finish . 6. From the[...]

  • Page 78

    77 APPENDIX C: Dial-Up Networking 7. The Modem Properties dialog box is displayed. For Windows 98, click the Server Types tab to display the server property screen. Select the appropriate Server Type, Log on options, and protocol selections for the device to which you are connecting (for example, your ISP). For Windows Me , go to the Networking tab[...]

  • Page 79

    78 POR T ABLE USB MODEM Figure C-5. TCP/IP Settings dialog box. If your ISP provided you with an IP address for your computer, select Specify an IP address and enter the static address in the box provided. If your ISP requires you to enter an IP address for their name server (DNS), select Specify name server addresses and enter the IP addresses giv[...]

  • Page 80

    79 APPENDIX C: Dial-Up Networking C.2 Windows 2000 Dial-Up Networking The following instructions describe all Dial-Up Networking connection options under Windows 2000 as well as guide you through setting up a Dial-Up Networking connection to an Internet Service Provider (ISP). NOTE If you are connecting to the Internet, make sure TCP/IP is installe[...]

  • Page 81

    80 POR T ABLE USB MODEM 3. The Network Connection Type dialog box is displayed offering several connection options. Select the option which best describes the type of connection you are creating with this definition. Figure C-7. Network Connection T ype dialog box. Click Next >. The process for completing your Dial-Up Networking connection will [...]

  • Page 82

    81 APPENDIX C: Dial-Up Networking If you select Dial-up to the Internet , the Welcome to the Internet Connection Wizard is displayed as shown below. Figure C-8. W elcome to the Inter net W orld Connection W izard. a. Select the appropriate option for the type of connection you are making to the Internet and click Next> . In this example, “I wa[...]

  • Page 83

    82 POR T ABLE USB MODEM In the IP Address section, select Always use the following: , and enter the IP addresses into the appropriate boxes. Click OK to return to Step 1 of 3: Internet account connection , and click Next> . NOTE If your machine has a network adapter installed, do not enter this address in the address box. Enter the IP address pr[...]

  • Page 84

    83 APPENDIX C: Dial-Up Networking a. The Devices for Incoming Connections dialog box is displayed. Select the Portable USB Modem and click Next> . b. At the Incoming Virtual Private Connection dialog box, select either Allow virtual private connection or Do not allow virtual private connection . c. The Allowed Users dialog box is displayed. Next[...]

  • Page 85

    84 POR T ABLE USB MODEM Appendix D. Upgrading the Modem D.1 Introduction Your modem is controlled by semi-permanent software, called firmware, which 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 fixe[...]

  • Page 86

    85 APPENDIX D: Upgrading the Modem I DENTIFY THE M ODEM F IRMWARE You must know the model number and firmware version of your modem to know whether or not you should upgrade it. 1. Run your favorite terminal program. You can use HyperTerminal for Windows 98, Me, 2000 or Windows NT. 2. In the program’s terminal window, type AT&F . Even if you [...]

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