Manuel d'utilisation / d'entretien du produit BA-Series du fabricant Multitech
Aller à la page of 109
BA-Series Intelligent Data/Fax Modem User Guide.
User Guide 88312001 Revision B MultiModem II Models: MT2834BA/MT2834BAI This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-Tech Systems, Inc. All rights reserved. Copyright 1999-2002 ©, by Multi-Tech Systems, Inc.
Contents Chapter 1 - Introduction and Description ......................................................................... 5 1.1 Introduction ............................................................................................................
Chapter 5 - S-Registers .................................................................................................... 49 5.1 Introduction ..........................................................................................................
Chapter 1 - Introduction and Description.
6 MultiModemBA User Guide 1.1 Introduction Welcome to the world of data communications. You have acquired one of the finest intelligent desktop data/fax modems available today, the MultiModem II BA series modem, from Multi-Tech Systems.
7 Chapter 1 - Introduction and Description Chapter 6 - Callback and Remote Configuration Chapter 6 documents instructions on how to operate the modem's Callback and Remote Configuration features; and the usage of LOGIN Passwords, Set-Up Passwords and Remote Escape Characters as network management tools.
8 MultiModemBA User Guide 1.3.1 2834 Series Features Your MT2834BA modem meets the proposed Enhanced V.34 ITU standard for data signalling rates as high as 33.
9 Chapter 1 - Introduction and Description 1.5 T echnical Specifications Your data/fax modem meets the specifications listed below: Tradename MultiModem IITM Model Numbers MT2834BA, MT2834BAI Data Rat.
10 MultiModemBA User Guide Fax Modulations V.21CH2 FSK at 300 bps, V.27ter DPSK at 4800 and 2400 bps, V.29 QAM at 9600 and 7200 bps, V.17 TCM at 14400, 12000, 9600, and 7200 bps Transmit Level -11dBm (dial-up), -9 or -15 dBm (leased-line); dBm level selectable with DIP-Switch #3 in leased line setting Frequency Stability ±0.
11 Chapter 1 - Introduction and Description 1.7 Modem LED Indicators The MultiModem diagnostic LED indicators are shown in Figures 1-1 FX EC TR OH 24 96 14.4 19.2 24.0 28.8 CD RD SD Fax V .42 Rdy Off Hk 2400 9600 14.4K 19.2K 24.0K 28.8K Carr Rcv Send MT2834BA Series Intelligent Modem Voice/ Data Answ Orig Figure 1-1.
12 MultiModemBA User Guide 1.8 Controls on PC Board The MultiModem is designed on a single printed circuit (PC) board. This board contains one 16- position DIP-Switch (numbered 1-16). The DIP-Switches are accessible through a cut-out on the side of the modem.
Chapter 2 - Installation and Connection.
14 MultiModemBA User Guide 2.1 What is in Y our Modem P acka ge? Your MultiModem is made up of many components. Make sure you have them all before trying to operate your modem. MADE IN U.S.A M ADE IN U.S.A FX EC TR OH 24 96 14.4 19.2 24.0 28.8 CD RD SD Fax V.
15 Chapter 2 - Installation and Connection 2.2.1 Safety W arnings 1. Use this product only with UL and cUL listed computers. 2. To reduce the risk of fire, use only 26 AWG (.41mm) or larger telephone wiring. 3. Never install telephone wiring during a lightning storm.
16 MultiModemBA User Guide 3 Connect the modem to a dial-up line by attaching the RJ-11 telephone cord (provided with your unit) to the LINE connector on the modem and to a dial-up wall jack. Refer to Figure 2-2. PHONE LINE ON OFF POWER EIA RS232C VOLUME Figure 2-2.
Chapter 3 - Software Configuration and Modem Basics.
18 MultiModemBA User Guide 3.1 Introduction Chapter 2 described the installation of PhoneTools, a communications software. If you are using a different software package, there are some points you should take into consideration.
19 Chapter 3 - Software Configuration 3.4.1 Changing Default Parameters By default, the modem will answer after the first ring and try to communicate with a modem on the other end of the line. If you have one telephone line for voice, fax, and modem communications, the modem may attempt to answer all incoming calls, voice as well as data.
20 MultiModemBA User Guide 3.5.2 T erminal Em ulation If you are accessing the remote computer as if from an on-site terminal, the keyboard codes used by your computer may not match the ones used by the remote computer.
Chapter 4 - Command Mode.
22 MultiModemBA User Guide 4.1 Introduction AT commands are the means by which you, and your communications software, are able to communicate with and configure your modem. They enable you to establish, read, and modify parameters in addition to dialing.
23 Chapter 4 - Command Mode Dial ( D or A ) command, or incoming phone call Carrier detected HANG UP ON-LINE MODE W AIT FOR CARRIER COMMAND MODE AT 0 Command +++A T No carrier detected Carrier lost Figure 41.
24 MultiModemBA User Guide STORE MODEM &F Load Factory Defaults CONFIGURATIONS &W Store Configuration & S-Register AND DEFAULTS Parameters Z Reset Modem V Result Code Terse/Verbose $SP UNI.
25 Chapter 4 - Command Mode CONFIGURE DATA &E14 Data Compression Disabled COMPRESSION &E15 Data Compression Enabled CONFIGURE SPEED $BA0 Speed Conversion On CONVERSION $BA1 Speed Conversion Off $MB Set modem speed (e.g.,$MB14400) $SB Set serial port speed (e.
26 MultiModemBA User Guide 4.3 Result Codes The Command mode provides you with several responses, or “ Result Codes ” , that can aid you in Command mode operation.
27 Chapter 4 - Command Mode 4.4 Dialing Commands 4.4.1 Dialing Action Commands Dial Command D The letter D in a command causes the modem to dial the telephone number immediately following it. For example, if you enter ATD5551212 and hit RETURN, the modem dials the number 555-1212.
28 MultiModemBA User Guide DTR Dialing $D An alternate method of causing the modem to automatically dial is DTR Dialing. Data Terminal Ready (DTR) is a signal that comes into the modem from the terminal or computer to which it is connected, on pin 20 of the RS-232C interface.
29 Chapter 4 - Command Mode Set Pulse Dial Ratios &P This command sets the time ratios between the open and closed portions of the dialing pulse frequencies. To set the dialing pulse ratio of 60 mSec to 40 mSec, enter AT&P0. To set a ratio of 67 mSec to 33 mSec, enter AT&P1 .
30 MultiModemBA User Guide Flash On Hook ! Some switchboard systems react to a momentary On Hook. An exclamation mark inserted in the command causes the modem to “ flash ” on hook for a half of a second, as if you had held the switch hook button on a telephone down for a half second.
31 Chapter 4 - Command Mode Number Linking NN You may command the modem to dial another number automatically if the first number dialed is busy. This would be useful in a situation where a computer can be accessed through more than one phone number. This is called “ linking ” .
32 MultiModemBA User Guide Loading Factory Defaults &F The &F command provides a choice between customized configuration settings in RAM and the factory default configuration settings in ROM. The &F8 and &F9 commands define the function of the &F command.
33 Chapter 4 - Command Mode &X0 is the default setting, which allows DIP-Switch #11 to control Internal/External Clocking (default Internal). Internal clocking is when the modem provides transmit clock to the DTE on pin 15 of the RS-232C/V.24 interface.
34 MultiModemBA User Guide Result Codes (Basic and Extended) and Call Progress Selection X The X Command is used to select one of two possible dialing methods ( “ dumb ” or “ smart ” ), and to select various response combinations related to these methods.
35 Chapter 4 - Command Mode Bell/V.21 Tone B The B command selects the frequency that the modem uses for its answer tone. (The answer tone is the tone transmitted by a modem receiving a call to the modem that called it, which initiates the handshaking between the two modems.
36 MultiModemBA User Guide Enable/Disable Lowspeed Fast Connect $FC Entering AT$FC0&W0<CR> sets up the data pump so that it will not transmit a 5 second 2100 Hz signal. Entering AT$FC0&W0<CR> allows the modem to transmit a 5 second 2100 Hz signal and is the factory default.
37 Chapter 4 - Command Mode Data Terminal Ready Control &D Data Terminal Ready (DTR) on pin 20 of the RS-232C interface is required in order for the modem to operate. A high DTR signal tells the modem that the device to which it is connected is active, or "ready" to communicate through the modem.
38 MultiModemBA User Guide DSR/CD Interaction Control &SF In typical applications, Data Set Ready (DSR) follows Carrier Detect (CD). &SF0 enables DSR to follow CD, and is the factory default. &SF1 enables DSR to operate independent of CD. If this is your application, refer to the &S command for control of the Data Set Ready signal.
39 Chapter 4 - Command Mode #L0 Command The #L0 Command allows a pair of modems to negotiate which V.42 mode (MNP or LAP-M) will be used in their transmissions. Originate Mode a. If both modems have LAP-M capability, the modems use LAP-M mode. b. If one or both modems do not have LAP-M capability and both have MNP, the modems use the MNP mode.
40 MultiModemBA User Guide Retransmit Count $R If errors are received during a Reliable connection, the modem re-sends the block of data which contained an error. With the $R0 command, if another error occurs, the block will be re-sent again. The modem counts the number of times that a data block is re-sent.
41 Chapter 4 - Command Mode Hardware Flow Control &E4 With Hardware Flow Control, the modem uses its RS-232C interface to control the flow of data from the computer or terminal to which it is attached. The CTS (Clear to Send) signal on Pin 5 of the RS- 232C interface is brought low to stop the flow of data, and is brought high to restart it.
42 MultiModemBA User Guide Send Xon/Xoff Characters #X The #X phone interface command allows the modem to send either a single or multiple Xoff characters at the modem's buffer full level.
43 Chapter 4 - Command Mode Parity Selection #P The #P command enables the setting of parity. AT#P0 selects no parity. AT#P1 selects odd parity. AT#P2 selects even parity and is the default value. Note when setting up your data comm software, it is critical that both your remote and local system's parity selection be set identically.
44 MultiModemBA User Guide 4.4.11 Speed Conversion Commands Speed conversion is a necessary part of data compression since data must be presented to the modem faster than it can handle data, if data compression is to be effective.
45 Chapter 4 - Command Mode Serial Port Baud Rate $SB The $SB command presets the speed of the modem ’ s serial (RS-232C) port, in both Originate and Answer modes.
46 MultiModemBA User Guide 4.4.12 Immediate Action Commands Help Screens $H The Help command is designed to give you short explanations on how to use each modem command. The Help command can be quite useful if your manual is not handy and you are in the middle of a communications session.
47 Chapter 4 - Command Mode Off Hook H You can make the modem hang up (go On Hook). Entering ATH1 <RETURN> brings the line Off Hook, just as if you picked up the telephone set. You can hang up by entering ATH0 or ATH (the default is 0 when no number is entered).
48 MultiModemBA User Guide Exiting Command Mode, Going Back On-Line O You can bring the modem out of Command mode and back into On-Line mode by entering ATO (where O is the letter O, not the number 0). In this case, the O command reverses what was done by entering the Escape Code.
Chapter 5 - S-Registers.
50 MultiModemBA User Guide 5.1 Introduction Certain Command Mode configurations are stored in memory registers called, S-Registers. The S command is used to assign a value to, and to read the current value of an S-Register.
51 Chapter 5 - S-Registers S4 Line Feed Character Unit: ASCII Character Range: 0-127 Default: 10 (^J) Description: S4 defines the character recognized as Line Feed. S3 may be set for any ASCII character. S5 Backspace Character Unit: ASCII Character Range: 0-127 Default: 8 (^H) Description: S5 defines the character recognized as BACKSPACE.
52 MultiModemBA User Guide S9 Carrier Detect Response Time Unit: 100 mSec. Range: 1-255 Default: 6 Description: S9 sets the time delay between when the modem first detects a valid incoming carrier signal and when the modem turns on its Carrier Detect circuit.
53 Chapter 5 - S-Registers S15 Callback Time Delay Unit: Seconds Range: 10-255 Default: 20 Description: S15 defines the time delay between Callback attempts after initial passwords have been exchanged between modems.
54 MultiModemBA User Guide S26 Failed Password Attempts Unit: 1 failed attempt Range: 0-255 Default: 0 Description: S26 counts the number of times there has been a failed password attempt.
55 Chapter 5 - S-Registers S36 Time Between DTR Inactive and Modem Off-Hook Unit: 1 Second Range: 0-255 seconds Default: 0 Description: The DTR Busy-out feature uses S-Register S36 to set the time between DTR inactive (low) and the modem going off-hook .
56 MultiModemBA User Guide 5.2.1 Examples of Assigning V alues 1. Let ’ s say you wish to have longer pauses caused by the comma in a dial command; five seconds instead of two. Entering ATS8=5 assigns 5 as the value for S-Register S8 (meaning the modem pauses five seconds for a comma in a dial command).
Chapter 6 - Callback Security and Remote Configuration.
58 MultiModemBA User Guide 6.1 Introduction This chapter describes how the MultiModem ’ s Callback and Remote Configuration features operate. These features use a multilevel security system, which involves the use of LOGIN Passwords, Setup Passwords and Remote Escape Characters.
59 Chapter 6 - Callback Security and Remote Configuration Table 6-1. Modem LOGIN, Setup and Remote Escape Code Procedures To change your modem’s LOGIN Password and Setup Password: Step Procedure Note: Passwords are upper/lower case sensitive. The case you enter here is the case that must be used at Log-In.
60 MultiModemBA User Guide Table 6-2. Callback Password and Dial Back Phone Number Entry Procedures Step Procedure 1. Enter your modem's LOGIN Password (as selected in Table 6-1) by entering the .
61 Chapter 6 - Callback Security and Remote Configuration 7. Enter your modem's LOGIN Password (as selected in Table 6-1) by entering: AT#Ixxxxxxxxxx<CR> (xxxxxxxxxx from Table 6-1) 8. Enter your modem's Setup Password (as selected in Table 6-1) by entering: AT#Syyyyyyyyyy<CR> (yyyyyyyyyy from Table 6-1) Table 6-3.
62 MultiModemBA User Guide 2. You then select 1 or 2. With 1, the modem goes back into data mode and with 2, the modem responds with the following: Password> 3.
63 Chapter 6 - Callback Security and Remote Configuration Change SETUP Password #S The default SETUP password for your modem is "SMODEMSETUP" .
64 MultiModemBA User Guide Local Inactivity Timer (S29) S29 defines the amount of idle time that can elapse between AT commands after the SETUP password has been entered. If this timer expires, the LOGIN and SETUP passwords will have to be re-entered.
Chapter 7 - DIP-Switch Settings.
66 MultiModemBA User Guide 7.1 Introduction There are several DIP-Switch options on the modem ’ s printed circuit (PC) board. The DIP-Switches are accessible through a cut-out on the side of the modem. This chapter explains the modem ’ s printed-circuit board options.
67 Chapter 7 - DIP-Switch Settings Switch #2 SDLC/BSC Option (Synchronous Mode/Leased Line/Dial-Up) Synchronous Data Link Control ( SDLC ) and Binary Synchronous Control ( BSC ) are two error correction protocols used in the IBM Mainframe environment.
68 MultiModemBA User Guide Switch #4 Unix UUCP Spoofing (Asynchronous Mode/Leased Line/Dial-Up) The modem can be configured for use with Unix equipment which employs ACK flow control to monitor data integrity. The modem can do "UUCP spoofing" , where the modem is able to generate ACKs at the DTE interface.
69 Chapter 7 - DIP-Switch Settings Switch #6 Slave Clocking (Synchronous Mode/Leased Line/Dial-Up) In Synchronous mode, DIP-Switch #6 controls the option of having timing controlled by the receive clock. The originate modem, in effect, adjusts to the answer (remote) modem.
70 MultiModemBA User Guide Switch #10 Leased Line/Dial-Up Operation -- "DDD" (Asynchronous/Synchronous Mode/Leased Line/Dial-Up) The modem operates in either leased-line or dial-up modes. This switch controls leased-line/dial-up operation. Place DIP-Switch #10 in the UP position for Dial-Up operation.
71 Chapter 7 - DIP-Switch Settings Switches #13 and #14 Speed Switches (Synchronous Mode/Leased Line) DIP-Switches #13 and #14 are used to set the modem ’ s data transmission rate. Switches #13 and #14 are used in combination, typically in leased-line and call origination applications.
72 MultiModemBA User Guide 7.4 Recording Option Configurations This section lets you record any changes you may have made to the DIP-Switch settings. Circle the appropriate setting and record the effect for future reference.
73 Chapter 7 - DIP-Switch Settings DIP Switches #13-14 Note: The modem baud rate command ( $MBn ) overrides the setting of these speed selection switches (DIP switches #13 and #14). SWITCH CONDITION EFFECT #13/#14 UP/UP* 28.8 K bps Operation #13/#14 DOWN/UP 19.
Chapter 8 - W arranty , Ser vice and T ech Suppor t.
75 Chapter 8 - Warranty, Service, and Technical Support 8.1 Introduction This chapter starts out with statements about your modem's 5-year warranty. The next section, Tech Support, should be read carefully if you have questions or problems with your modem.
76 MultiModemBA User Guide Please direct your questions regarding technical matters, product configuration, verification that the product is defective, etc., to our Technical Support department at (800) 972-2439 or email tsupport@multitech.com. Please direct your questions regarding repair expediting, receiving, ship- ping, billing, etc.
77 Chapter 8 - Warranty, Service, and Technical Support 8.4 Replacement Parts SupplyNet, Inc., can supply you with replacement power supplies, cables and connectors for selected Multi-Tech products. You can place an order with SupplyNet via mail, phone, fax or the Internet at the following addresses: Mail : SupplyNet, Inc.
Appendixes.
79 Appendix A - Upgrading Your Modem’s Firmware Appendix A -- Upgrading Y our Modem’s Firmware 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.
80 MultiModemBA User Guide 5. If the firmware version number is greater than the firmware version number found in “ Step 1: Identify the Modem Firmware, ” your modem has an older firmware version. Continue with “ Step 3: Download the Upgrade File.
81 Appendix A - Upgrading Your Modem’s Firmware 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 new firmware (example: ARQG125A.
82 MultiModemBA User Guide Appendix B - T r oubleshooting 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.
83 Appendix B - Troubleshooting • If you don ’ t get an OK , the problem may still be in the communications software. Make sure you have done whatever is necessary in your software to make a port connection. Not all communications programs connect to the COM port automatically.
84 MultiModemBA User Guide The Modem Dials But Cannot Make a Connection There can be several reasons the modem fails to make a connection. Possibilities include • lack of a physical connection to the telephone line. • a wrong dial tone. • a busy signal.
85 Appendix B - Troubleshooting The Modem Disconnects While On-line • If you have call waiting on the same phone line as your modem, it may interrupt your connection when someone tries to call you. If you have call waiting, disable it before each call.
86 MultiModemBA User Guide I Am Getting Garbage Characters on the Monitor • Your computer and the remote computer may be set to different word lengths, stop bits, or parities. If you have connected at 8-N-1, try changing to 7-E-1, or vice-versa, using your communications software.
87 Appendix C - AT Command Summary Apendix C - A T Command Summar y Command Values Description AT Attention Code that precedes most command strings except A/, A: and Escape Codes.
88 MultiModemBA User Guide Command Values Description D s N d s = phone # Store telephone number. To store, phone d = 0 thru 9 number ” s “ is entered and followed by N and then Directory Number “ d. ” &D n n = 0 thru 3 &D0 DTR is ignored &D1 means modem returns to command mode.
89 Appendix C - AT Command Summary &F n n = 0, 8 or 9 &F loads factory default values from ROM. * &F8 reads factory default values and switch settings when &F is issued. &F9 reads parameters stored in non-volatile memory when &F is issued.
90 MultiModemBA User Guide $MB n n = speed $MB75 selects CCITT V.23 mode. $MB300 selects 300 bps on-line. $MB1200 selects 1200 bps on-line. $MB2400 selects 2400 bps on-line.
91 Appendix C - AT Command Summary $SB n n = speed $SB300 selects 300 bps at serial port. $SB1200 selects 1200 bps at serial port. $SB2400 selects 2400 bps at serial port. $SB4800 selects 4800 bps at serial port. $SB9600 selects 9600 bps at serial port.
92 MultiModemBA User Guide X n n = 0,1,2,3 or 4 * X0 selects Basic Result Codes (w/o CONNECT 1200, CONNECT 2400). X1 selects Extended Result Codes (w/CONNECT 1200, CONNECT 2400). X2 selects Standard AT Command set with NO DIAL TONE. X3 selects Standard AT Command set with BUSY.
93 Appendix C - AT Command Summary Callback Security/Remote Configuration Command Summary Command Description #DBn #DB0 disables Callback Security and answering Yes to the prompt turns off Callback Security and erases stored phone numbers and passwords.
94 MultiModemBA User Guide Password Command Summary Command Description #Ixxxxxxxxxx Login Password is any keyboard characters (x) (upper/lower case sensitive), minimum 6 and maximum 10 characters.
95 Appendix C - AT Command Summary V.25bis Commands Command Description $Vn $V0 returns modem to AT command mode when in V.25bis mode. $V1 enables V.25bis mode of operation. $V2 allows modem to receive one V.25bis command while in AT command mode without leaving AT command mode.
96 MultiModemBA User Guide Appendix D - V .25bis Operation Chapter 4 described a set of commands which let the modem dial, hang-up, and be configured for various applications. However, these commands, the AT command set, are only functional when the DTE transmits data asynchronously.
97 Appendix D - V.25bis Operation Another asynchronous mode concern is the problem of connecting at a different speed than the speed at which the serial port is set.
98 MultiModemBA User Guide V.25bis Responses (Result Codes) When in V.25 bis mode (the AT$V1 command executed), your modem provides you with several responses which can help you follow the progress of V.25 bis operations. These are similar to the Result Codes associated with AT Command mode operation.
99 Appendix D - V.25bis Operation Dial Phone Number Provided (CRN) Command The CRN command permits the dialing of the phone number immediately following it (from the command line). It is similar to the D command of the AT command set, except that the number is first checked against the Delayed Number and Forbidden Number list.
100 MultiModemBA User Guide DTR Dialing ($D) Command DTR Dialing is an alternate method of causing the modem to automatically dial a number. Data Terminal Ready (DTR) is a signal that comes into the modem from the terminal or computer to which it is connected via pin 20 of the RS-232 interface.
101 Appendix E - MultiModemBA Cables 3. Austria a) Command/Indication modification (none) b) Delayed and Forbidden list behavior 1. No delay between retries 2. After 2 retries to numbers that answer, but give no answer tone ( CFINT ), the number is put on the forbidden list 3.
102 MultiModemBA User Guide Appendix E - MultiModemBA Cables These cables connect your modem to your terminal or computer ’ s serial port. 25-PIN DTE Connector 25-PIN DCE Device 2T D 3R D 4R T S 5 CTS 6 DSR 7G N D 8C D 20 DTR 22 RI TD 2 RD 3 RTS 4 CTS 5 DSR 6 GND 7 CD 8 DTR 20 RI 22 Figure E-1.
103 Appendix F - Regulatory Information Appendix F - Regulatory Information FCC Part 15 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.
104 MultiModemBA User Guide 6. The telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the operation of the equipment. If this happens, the telephone company will provide advance notice in order for you to make necessary modifications in order to maintain uninterrupted service.
105 Appendix F - Regulatory Information International Modem Restrictions Some dialing and answering defaults and restrictions may vary for international modems. Changing settings may cause a modem to become non-compliant with national telecom requirements in specific countries.
106 MultiModemBA User Guide Index A Abor t Timer ......................................................... 51 Answer Mode ..................................................... 39 AS/400 Mode ..................................................... 67 ASCII code .
107 Index Escape Code Character ..................................... 50 Escape Sequence Options (%E) ........................ 47 Escape Sequences (+++A T<CR>) ..................... 47 Examples of Assigning V alues ........................... 56 Examples of Reading V alues .
108 MultiModemBA User Guide P ause Time for Comma ...................................... 51 PBX/CBX Disconnect Drop Time for DSR/CTS/CD53 PBX/CBX systems ............................................. 53 Power ..........................................
109 Index Y Ymodem/G ......................................................... 85 Z Zmodem ............................................................
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Multitech BA-Series c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Multitech BA-Series - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Multitech BA-Series, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Multitech BA-Series va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Multitech BA-Series, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Multitech BA-Series.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Multitech BA-Series. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Multitech BA-Series ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
