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T able of Contents Express XR/XRT 128 kbps ISDN Modem Quick Star t Guide 1200153L1 Express XR, Data Only 1200153L2 Express XRT, Two Phone Ports 3360.9VU01 Express XR Power Supply, 9.0 V DC Output 336048VUR-2 Express XRT Power Supply, 48 V DC Output 61200.
T able of Contents The Express XR and Expr ess XR T incorporate Synchr onous Data Compres- sion based on either IBM or Stac Electronics pr oprietary intellectual property depending on the time of manufacture. The following trademarks and copyrights are applicable: Stacker LZS Compression Copyright (c) 1989 Carnegie Mellon University .
T able of Contents FCC regulations require that the following information be provided to the customer in this manual. 1. If your telephone equipment (Express XR/XRT) causes harm to the telephone network, the Telephone Company may discontinue your service temporarily.
CANADIAN EMISSIONS REQUIREMENTS This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interfer ence-causing equipment standard entitled "Digital Apparatus," ICES-003 of the Depart- ment of Communications.
W ARRANTY : ADTRAN warrants that items manufactur ed by ADTRAN and supplied under Buyer ’s order shall be free fr om defects in materials and workmanship and will conform to applicable specifications and drawings.
T able of Contents repair will be invoiced and the r eturn of the item will be made using the most economical shipment means available. ADTRAN will use other means of express shipment at the r equest of the Buyer . In this case, the cost of shipping shall be paid by the Buyer .
T able of Contents Telephone Company Contacts for ISDN Service Ameritech ISDN Repair 1-800-TEAMDA T A Bell Atlantic 1-800-204-7332 Bell South 1-800-247-2020 Cincinnati Bell 1-513-566-161 1 NYNEX 1-800.
T able of Contents.
T able of Contents 61200.153L1-13 Express XR/XRT Quick Start Guide i T able of Contents Chapter 1. Introduction Express XR/XR T Overview ................................................................................... 1 Getting Started ............
T able of Contents ii Express XR/XRT Quick Start Guide 61200.153L1-13 Chapter 3. Installing an Analog Modem External Analog Modem Application ................................................................. 27 Connecting an External Analog Modem ....
T able of Contents Appendix D. Loop Status Messages 75 Appendix E. Connector Pinouts 77 List of T ables T able B-A Express XR/XR T LEDs .................................................................... 63 T able E-A RS-232 Interface ...............
T able of Contents.
61200.0153L1-13 Express XR/XRT Quick Start Guide 1 Chapter 1. Introduction Chapter 1 Introduction EXPRESS XR/XRT OVER VIEW The Express XR/XR T pr ovides high speed network access for Internet and remote of fice connectivity using ISDN.
Chapter 1. Introduction 2 Express XR/XRT Quick Start Guide 61200.0153L1-13 Before getting started, r eview the section Minimum Requir ements in this chapter to ensure your computer is compatible.
61200.0153L1-13 Express XR/XRT Quick Start Guide 3 Chapter 1. Introduction What ADTRAN Provides The ADTRAN Express XR/XR T is packaged with the following contents (see Figure 1-1): • Express XR or E.
Chapter 1. Introduction 4 Express XR/XRT Quick Start Guide 61200.0153L1-13.
61200.153L1-13 Express XR/XRT Quick Start Guide 5 Chapter 2. Installation Chapter 2 Installation INST ALLING THE ADTRAN EXPRESS XR/XRT This section describes how to connect the Express XR/XR T to a PC and how to install the Express Configuration W izard soft- war e.
Chapter 2. Installation 6 Express XR/XRT Quick Start Guide 61200.153L1-13 SW 2: Off (Up) = Factory Default On (Down) = Normal (previous settings saved) If Switch 2 is set to the Off position, the unit continues to use the factory default settings until Switch 2 is set to the On position.
61200.153L1-13 Express XR/XRT Quick Start Guide 7 Chapter 2. Installation 7. Plug the RJ-1 1 connector (small end) of the RJ-45 to RJ-1 1 telephone cable into the ISDN telephone wall jack. At this time the Expr ess XR/XRT is power ed on and the PWR LED should either be flashing or on solid.
Chapter 2. Installation 8 Express XR/XRT Quick Start Guide 61200.153L1-13 Microsoft Windows 95 and Windows NT 4.0 Windows 95 Plug and Play 1. During the W indows 95 boot pr ocess, if the New Hardware Found screen appears indicating Unknown Device , select Driver from disk provided by hardware manufacturer .
61200.153L1-13 Express XR/XRT Quick Start Guide 9 Chapter 2. Installation 4. Click NEXT . 5. Click the Have Disk button. 6. Insert the disk labeled W indows 95 and W indows NT into the 3.5" floppy disk drive. 7. Click OK . 8. Select ADTRAN Express XR or XR T from the Drivers list.
Chapter 2. Installation 10 Express XR/XRT Quick Start Guide 61200.153L1-13 Figure 2-3 Installation Options By default, the Express Configuration W izard and INF files are installed. Click on the box labeled HyperAccess Communica- tions Software if you wish to use HyperACCESS as your communications software.
61200.153L1-13 Express XR/XRT Quick Start Guide 11 Chapter 2. Installation If running Windows NT 3.51, install r emote access service befor e following the INF file installation procedur e. Windows NT 3.51 INF File Installation T o install an ADTRAN Expr ess XR/XR T use the following procedur e: 1.
Chapter 2. Installation 12 Express XR/XRT Quick Start Guide 61200.153L1-13 3. In the command line, type a:setup (where a is the disk drive where the ADTRAN Express Configuration W izard disk was inserted). 4. Follow the screen pr ompts and insert disk(s) as requested.
61200.153L1-13 Express XR/XRT Quick Start Guide 13 Chapter 2. Installation Conference Calling Conference Calling (also known as thr ee-way calling) permits a conversation between three parties, each at dif ferent locations. During a voice call, the call waiting tone signals a second incom- ing call.
Chapter 2. Installation 14 Express XR/XRT Quick Start Guide 61200.153L1-13 Using the Express Configuration Wizard 1. From the Star t button, choose Programs, then ADTRAN , then double click Express Configuration . After auto- detection, the screen shown in Figur e 2-4 is displayed; skip to Step 5.
61200.153L1-13 Express XR/XRT Quick Start Guide 15 Chapter 2. Installation Figure 2-5 Unable to Auto-Detect 2. If the error message shown in Figur e 2-5 is displayed, click Cancel . The screen shown in Figur e 2-4 is displayed. 3. Select the Connection tab.
Chapter 2. Installation 16 Express XR/XRT Quick Start Guide 61200.153L1-13 Figure 2-6 Express Configuration W izard Connection T ab 4. Check the power and the cable connections then select the Auto-Detect button. If the error message shown in Figure 2-5 is displayed again, see the chapter T roubleshooting .
61200.153L1-13 Express XR/XRT Quick Start Guide 17 Chapter 2. Installation 10. Click NEXT to use Automatic SPID and Switch Detection or enter the Switch T ype and service profile IDs (SPIDs) provided by the telephone company . 1 1. Check the Auto-detect SPIDs/Switch T ypes option.
Chapter 2. Installation 18 Express XR/XRT Quick Start Guide 61200.153L1-13 Express Configuration Wizard T ray T ool The T ray T ool is used for quick access to the Express Configura- tion W izard and to enable or disable the external analog modem when used with an Express XR T .
61200.153L1-13 Express XR/XRT Quick Start Guide 19 Chapter 2. Installation T o prevent the Express Configuration W izard T ray T ool from launching once the Express Configuration W izard softwar e is closed, uncheck the box labeled Add tray icon under the Prefer - ences tab in the Express Configuration W izard software (shown in Figure 2-8).
Chapter 2. Installation 20 Express XR/XRT Quick Start Guide 61200.153L1-13 Figure 2-9 Express XR T Disabled, External Analog Modem Enabled This icon is not available when using an Express XR. Double clicking on this icon, when using an Express XR T , enables the external analog modem.
61200.153L1-13 Express XR/XRT Quick Start Guide 21 Chapter 2. Installation Express Configuration T ray T ool Menu When using the Express Configuration W izard T ray T ool with the Express XR T , use the right mouse button and click on the icon. The menu in Figure 2-12 appears.
Chapter 2. Installation 22 Express XR/XRT Quick Start Guide 61200.153L1-13 About Displays version information. Exit Exits the T ray T ool. Installing Windows 95 Dial-Up Networking Dial-Up Networking for W indows 95 is most commonly used for connections to Internet Service Providers or other networks.
61200.153L1-13 Express XR/XRT Quick Start Guide 23 Chapter 2. Installation 14. In the Make a New Connection menu, enter the number to dial. 15. Click NEXT . 16. Click Finish to complete the new connection setup. 17. T o use this connection, select it from My Computer , Dial-Up Networking .
Chapter 2. Installation 24 Express XR/XRT Quick Start Guide 61200.153L1-13 VT 100 Configuration 1. After connecting a VT 100 terminal enter the command A T!V followed by Enter . The Configuration screen is the first screen displayed. An illustration of this screen is shown in Figure 2-13.
61200.153L1-13 Express XR/XRT Quick Start Guide 25 Chapter 2. Installation VT 100 T erminal Status Buffer The status buf fer can be displayed at any time after entering the menu structur e.
Chapter 2. Installation 26 Express XR/XRT Quick Start Guide 61200.153L1-13.
61200.153L1-13 Express XR/XRT Quick Start Guide 27 Chapter 3. Installing an Analog Modem Chapter 3 Installing an Analog Modem An external or internal analog modem can be connected to the Express XR T to access an Internet provider , BBS, or host server that does not support ISDN.
Chapter 3. Installing an Analog Modem 28 Express XR/XRT Quick Start Guide 61200.153L1-13 RS-232 Cable COM Ports ISDN Telephone Wall Jack ISDNU OFF ON 21 MODEM RS232 POWER 1234 Express XRT Analog Telep.
61200.153L1-13 Express XR/XRT Quick Start Guide 29 Chapter 3. Installing an Analog Modem above the jack is an illustration of a telephone above a modem. 6. Connect the other end of the RJ-1 1 to RJ-1 1 telephone cable to the Dial Line or Line jack on the external analog modem.
Chapter 3. Installing an Analog Modem 30 Express XR/XRT Quick Start Guide 61200.153L1-13 13. Click Close . 14. The external analog modem may now be used, or you may restart the Express Configuration W izard and deselect the Connect External Modem option to enable the Express XR T .
61200.153L1-13 Express XR/XRT Quick Start Guide 31 Chapter 3. Installing an Analog Modem Controlling an External Analog Modem There ar e three options for enabling and disabling an external modem: the Expr ess Configuration W izard, the WIN 95/NT 4.0 T ool T ray Icon, or a terminal emulation package.
Chapter 3. Installing an Analog Modem 32 Express XR/XRT Quick Start Guide 61200.153L1-13 Figure 3-2 Express Configuration W izard: Connecting an External Modem If the Express Configuration W izard softwar e cannot detect the external analog modem, the error message shown in Figur e 3-3 is displayed.
61200.153L1-13 Express XR/XRT Quick Start Guide 33 Chapter 3. Installing an Analog Modem Figure 3-3 No Modem Attached Error Message Express Configuration Wizard Modem Disable The external analog modem is disabled using the Express Configuration W izard by deselecting the Connect External Modem option.
Chapter 3. Installing an Analog Modem 34 Express XR/XRT Quick Start Guide 61200.153L1-13 T erminal Emulation Modem Enable An alternative method is to use a terminal emulation package such as HyperACCESS. In order to determine if an external analog modem is properly connected to the Expr ess XRT , issue the A T command A T!Z (followed by Enter ).
61200.153L1-13 Express XR/XRT Quick Start Guide 35 Chapter 3. Installing an Analog Modem T o enable an external analog modem, issue the A T command A T_L1 (followed by Enter ). Figure 3-5 illustrates a HyperACCESS session enabling an external analog modem.
Chapter 3. Installing an Analog Modem 36 Express XR/XRT Quick Start Guide 61200.153L1-13 Terminal Emulation Modem Disable When using HyperACCESS or other terminal emulation package issue the A T command A T_L0 (followed by Enter ) . Figure 3-6 illustrates a HyperACCESS session disabling an external analog modem.
61200.153L1-13 Express XR/XRT Quick Start Guide 37 Chapter 3. Installing an Analog Modem INTERNAL ANALOG MODEM APPLICA TION In order to connect an internal analog modem to the Expr ess XR T the follow.
Chapter 3. Installing an Analog Modem 38 Express XR/XRT Quick Start Guide 61200.153L1-13 Connecting an Internal Analog Modem T o connect an internal analog modem to the Express XR T use the following procedur e: 1. Ensure the Expr ess XRT is connected to the PC.
61200.153L1-13 Express XR/XRT Quick Start Guide 39 Chapter 4. Application Configuration Chapter 4 Application Configuration There ar e three methods available for configuring the Express XR/XR T : Express Configuration W izard, VT 100 terminal, or A T Commands.
Chapter 4. Application Configuration 40 Express XR/XRT Quick Start Guide 61200.153L1-13 The Express XR/XR T can be reset to the factory default settings by setting switch 2 to the Off (Up) position. See the section Switch Settings in the chapter Installation for more information.
61200.153L1-13 Express XR/XRT Quick Start Guide 41 Chapter 4. Application Configuration Factory: Remote Access 128k Call T ype ..................................................... Data 64kbps Auto Answer ..............................................
Chapter 4. Application Configuration 42 Express XR/XRT Quick Start Guide 61200.153L1-13 Creating a Custom Profile 1. In the ADTRAN Express Configuration window , create a New profile by choosing the N.
61200.153L1-13 Express XR/XRT Quick Start Guide 43 Chapter 4. Application Configuration Defining a User Pr ogram Button A button can be added to the ADTRAN Expr ess Configuration W izard window to automatically launch an application like Chameleon, ShivaRemote, or other data communications pack- ages.
Chapter 4. Application Configuration 44 Express XR/XRT Quick Start Guide 61200.153L1-13 and follow the application documentation for complete setup information. BBS Applications T o access a bulletin board service a new profile will need to be created and the pr otocol of the bulletin board service must be known.
61200.153L1-13 Express XR/XRT Quick Start Guide 45 Chapter 4. Application Configuration button fr om the left). Disconnected is displayed at the bottom of the Session window . 10. Save the file by selecting Save in the File menu. 1 1. Select Close in the File menu.
Chapter 4. Application Configuration 46 Express XR/XRT Quick Start Guide 61200.153L1-13.
61200.153L1-13 Express XR/XRT Quick Start Guide 47 Chapter 5. T roubleshooting Chapter 5 T roubleshooting TROUBLESHOOTING GUIDELINES This section provides tr oubleshooting techniques to possible problems that may be encounter ed while operating the Express XR/XR T .
Chapter 5. T roubleshooting 48 Express XR/XRT Quick Start Guide 61200.153L1-13 Power/Line LED, B1, and B2 LEDs Flash Green This indicates a configuration problem.
61200.153L1-13 Express XR/XRT Quick Start Guide 49 Chapter 5. T roubleshooting The Status buffer can also be accessed using the key sequence Ctrl+V in the VT 100 menu system. Issue the A T command A T!V from a terminal emulation package such as HyperACCESS to invoke the VT100 menu system.
Chapter 5. T roubleshooting 50 Express XR/XRT Quick Start Guide 61200.153L1-13 External Analog Modem Not Detected If the Express Configuration W izard cannot detect the external analog mode verify the following: 1. The external analog modem is powered on.
61200.153L1-13 Express XR/XRT Quick Start Guide 51 Appendix A. A T Commands and S-Registers Appendix A A T Commands and S-Registers A T Commands While a call is not established, the DTE port accepts A T com- mands. During this time, the CD signal is inactive.
Appendix A. A T Commands and S-Registers 52 Express XR/XRT Quick Start Guide 61200.153L1-13 commands may be separated with spaces for readability . The maximum length for a command line is 40 characters. Each command line is executed by the Express XR/XR T upon receipt of a terminating character .
61200.153L1-13 Express XR/XRT Quick Start Guide 53 Appendix A. A T Commands and S-Registers Changing an S-Register T ype AT S followed by the number of the S-r egister to be changed, an equal sign, the numeric value to be assigned to the register , then press Enter .
Appendix A. A T Commands and S-Registers 54 Express XR/XRT Quick Start Guide 61200.153L1-13 Command Function A Answer. Places the Express XR/XRT in answer mode. AT!S Displays Status Buffer. AT!S1 Displays Link Status AT!V Configuration Menu. AT!Z Detect a modem connected to the Express XRT.
61200.153L1-13 Express XR/XRT Quick Start Guide 55 Appendix A. A T Commands and S-Registers Command Function Generic Unit Configurations &F0 Factory Default (fallback auto-protocol detect) &F1 Internet 64K &F2 Internet 128K &F3 Remote access 64K &F4 Remote access 128K &F7 Configures unit for Dial 57.
Appendix A. A T Commands and S-Registers 56 Express XR/XRT Quick Start Guide 61200.153L1-13 Command Function Local Echo Options E0 Echo off. Does not allow command characters typed to be displayed on the screen. E1 Echo on. Allows the command characters typed to be displayed on the screen.
61200.153L1-13 Express XR/XRT Quick Start Guide 57 Appendix A. A T Commands and S-Registers S-REGISTER LIST S0 ..... AUTO ANSWER Determines how the Express XR/XR T answers an incoming call. 0 = Disable (Express XR/XR T does not answer call). 1 = Enable (Express XR/XR T answers all calls).
Appendix A. A T Commands and S-Registers 58 Express XR/XRT Quick Start Guide 61200.153L1-13 execute the command. Range = 0 to 127 S14 ... MISC BITS ......... Miscellaneous bits (bit 8 is most significant bit). Bit 2 = 1: Enables on screen echo of A T commands.
61200.153L1-13 Express XR/XRT Quick Start Guide 59 Appendix A. A T Commands and S-Registers 0 = 1 ms delay 17 = 18 ms delay S32 ... DTE DSR ............ Controls the operation of the Data Set Ready signal on the DTE connectors. 0 = Force DSR on always 1 = DSR off OOS + T est 2 = DSR off Link Down S33 .
Appendix A. A T Commands and S-Registers 60 Express XR/XRT Quick Start Guide 61200.153L1-13 S42 ... BOND .................. The number of seconds both endpoints wait for TXADD01 the additional call to be connected at the end of negotiation before deciding the async BOND- ING call has failed.
61200.153L1-13 Express XR/XRT Quick Start Guide 61 Appendix A. A T Commands and S-Registers S58 ... CALL ................... Allows the Express XR/XR T to screen incoming SCREENING calls. 0 = Answer any call 1 = Answer only calls from numbers matching those stored in SN0 thr ough SN9.
Appendix A. A T Commands and S-Registers 62 Express XR/XRT Quick Start Guide 61200.153L1-13 3 = Hardwar e 12 = Software SS77 REMOTE ............. Numeric password string for r emote NUMERIC configuration. P ASSWORD The following are the string locations for stor ed numbers 0 - 9: SS80 SN0 LOC .
61200.153L1-13 Express XR/XRT Quick Start Guide 63 Appendix B. LEDs Appendix B LEDs LEDs The Express XR/XR T front panel contains five LEDs associated with the DTE port and the ISDN interface as shown in Figure B-1 and described in T able B-A.
Appendix B. LEDs 64 Express XR/XRT Quick Start Guide 61200.153L1-13.
61200.153L1-1 Express XR/XRT Quick Start Guide 65 Appendix C. Status Buffer Messages Appendix C Status Buffer Messages 2047 BERT orig T est remote originated 2047 BER T (bit error rate test) pattern. 2047 loopbk ansr T est remote answer ed 2047 BER T pattern.
Appendix C. Status Buffer Messages 66 Express XR/XRT Quick Start Guide 61200.153L1-1 AutoSwitch YYY Switch type YYY detected during AutoSpid determination. (YYY can be DMS, NI-1, or A T&T) Back to online Express XR went back on line. Bad async BPS The Bonding protocol determined that the selected asynchr o- nous bit rate is not supported.
61200.153L1-1 Express XR/XRT Quick Start Guide 67 Appendix C. Status Buffer Messages BPS mismatch Bonding negotiation found a bit rate mismatch. Break to A T cmd User issued a break-in r equest. Break ignored User issued an extra break-in r equest. BUSY The called number is busy .
Appendix C. Status Buffer Messages 68 Express XR/XRT Quick Start Guide 61200.153L1-1 CHANNEL_UNACCEPT ABLE The channel requested has not been subscribed. CID>0 rcvd Received an incoming call from a thir d party during negotiations with a far-end BONDING unit on the use of the second Bear er channel.
61200.153L1-1 Express XR/XRT Quick Start Guide 69 Appendix C. Status Buffer Messages FACILITY_NOT_IMPLEMENT The network does not support the requested supplementary service. F ACILITY_NOT_SUBSCRIBED The channel type requested has not been subscribed. F ACILITY_REJECTED A facility requested by the user cannot be provided by the network.
Appendix C. Status Buffer Messages 70 Express XR/XRT Quick Start Guide 61200.153L1-1 INV ALID_CALL_REF Call control err or . INV ALID_ELEM_CONTENTS Call control err or . INV ALID_MSG_UNSPEC Invalid message: protocol err or . INV ALID_NUMBER_FORMA T The dialed number has an invalid format.
61200.153L1-1 Express XR/XRT Quick Start Guide 71 Appendix C. Status Buffer Messages Need 64K call The BONDING protocol r equires the Express XR/XR T to be configured for 64K data call types. NETWORK BUSY The ISDN switch is busy and unable to process a call.
Appendix C. Status Buffer Messages 72 Express XR/XRT Quick Start Guide 61200.153L1-1 NOT end2end ISDN The path that the call was routed over is not ISDN fr om end-to- end (warning only). NUMBER_CHANGED The number dialed has been changed. OUTGOING_CALL_BARRED The network will not allow the outgoing call to be placed.
61200.153L1-1 Express XR/XRT Quick Start Guide 73 Appendix C. Status Buffer Messages Restarting Rate Unit restarts DTE rate. Retrieve V oice call is retrieved from a holding state. Ring An incoming call on either the first or second channel (third channel if call waiting) entered the Ring state.
Appendix C. Status Buffer Messages 74 Express XR/XRT Quick Start Guide 61200.153L1-1 UNASSIGNED_NUMBER The phone number dialed does not exist. Unknown A T cmd User issued an unknown A T command. USER_ALERT_NO_ANS Ringing call is not answered. USER_BUSY The dialed number is busy .
61200.153L1-13 Express XR/XRT Quick Start Guide 75 Appendix D. Loop Status Messages Appendix D Loop Status Messages This appendix lists the status line messages and their definitions. Messages shown entir ely in capital letters are generated by the ISDN network.
Appendix D. Loop Status Messages 76 Express XR/XRT Quick Start Guide 61200.153L1-13 Ready The unit is ready to make or accept a call. Register SPID #1 The Express XR/XR T is registering its first SPID with the net- work. Register SPID #2 The Express XR/XR T is registering its second SPID with the network.
61200.153L1-1 Express XR/XRT Quick Start Guide 77 Appendix E. Connector Pinouts Appendix E Connector Pinouts PIN 13 PIN 1 PIN 25 PIN 14 FEMALE Figure E-1 RS-232 Interface T able E-A RS-232 Interface Pin Name I/O Description 1 ......... Shield ........
Appendix E. Connector Pinouts 78 Express XR/XRT Quick Start Guide 61200.153L1-1 PIN 1 PIN 13 PIN 14 PIN 25 MALE Figure E-2 Modem Interface T able E-B Modem Interface Pin Name I/O Description 1 ......... Shield .................... I/O ................
61200.153L1-1 Express XR/XRT Quick Start Guide 79 Appendix E. Connector Pinouts The RJ-1 1 POTS ports apply to the Express XR T only . T able E-C RJ-1 1 POTS Port Interfaces POTS 1 Interface Pin 1 Pin.
Appendix E. Connector Pinouts 80 Express XR/XRT Quick Start Guide 61200.153L1-1.
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Een belangrijk punt na aankoop van elk apparaat ADTRAN 1200153L1 (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen ADTRAN 1200153L1 heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens ADTRAN 1200153L1 vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding ADTRAN 1200153L1 leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over ADTRAN 1200153L1 krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van ADTRAN 1200153L1 bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de ADTRAN 1200153L1 kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met ADTRAN 1200153L1 . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.
