Manuel d'utilisation / d'entretien du produit Serial Device Server du fabricant Quatech
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CONNECT WITH RELIABILITY Serial Device Server User’s Manual QUATECH, INC. 5675 Hudson Industrial Parkway Hudson, Ohio 44236-5012 Toll free: 1-800-553-11 70 http://www.quatech.com Quatech Device Server User’s Manual P/N: 940-0183-153 Manual Revision 1.
Copyright Copyright © 2005 Quatec h, Inc. All rights are reserved. The inf ormation contained in this document cannot be reproduced in any form without th e written consent of Quatech, Inc.
Quatech SDS User’s Manual Introduction T able of cont ents Table of contents ------------------------------------------------------------------------------------------------------------------ i Figu.
Introduction Quatech SDS User’s Manual Contacting Quatech ------------------------------------------------------------------------------------------------------ 79 Troubleshoot ing and Maintain ing .
Quatech SDS User’s Manual Introduction Figure 33 - Locate the Ser ial Device Server screen ................................................................................. 36 Figure 34 - Lo cate the Serial Device Server using direct discovery screen .
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Quatech SDS User’s Manual Introduction Introduction Quatech’s line of Serial D evice Servers (SDS) is d esigned to network - enable any device currently usin g RS-232 or RS-422/485 seria l communications protoc ols.
Introduction Quatech SDS User’s Manual Understanding how virtual communication ports work Single port Device Servers allow you to netw ork individual s erial devices such as printe rs, simple te rminals, or medical moni toring equipment that were previously acce ssibl e only via a direct lin k.
Quatech SDS User’s Manual Introduction Using Port numbers In order for devices to communicate via a TCP connection or a UDP datagram, they must know each other’ s IP address and port number. The SDS driver automatically sets the unit’s port number for you.
Introduction Quatech SDS User’s Manual IP address and TCP port number of the net work host to which it should connect. If the SDS is idle, it wil l listen for normal Raw TCP mode connectio ns from the network ho st. Raw UDP mode Raw UDP is used primarily for broadcasting messages over a network.
Quatech SDS User’s Manual Introduction Features Quatech Device Servers can connect vi rtually any serial device t o any standard Ethernet network (Intranet or Internet) using TCP/IP protocols.
Introduction Quatech SDS User’s Manual information that a management netw ork host can retrieve using the Get command. In addition to providin g information upon r equest, the SDS supports a cold start Trap, which is a spon taneous message the SDS initiates whenever it boots up.
Quatech SDS User’s Manual Introduction Getting started Unpacking your SDS Follow these steps to unp ack your SDS. Step Procedure Description Step 1 Remove the SDS from th e box. Step 2 Remove all packin g material from th e SDS. Save the pac kaging in case you ever need to store the unit or return it to Quatec h for service.
Introduction Quatech SDS User’s Manual Identifying parts Figure 1 shows the conne ctors and indicator lights (LEDs) of the SDS. See be low for a d esc ri pti on of each item shown. Figure 1 – Connectors and Indicators The actual number and location of serial ports will vary according to the m odel.
Quatech SDS User’s Manual Introduction Understanding LED codes The SDS LEDs inform you of the communications status and a ctivity of the SDS. The follo wing table lists the p ossible states of the LEDs and their meaning.
Introduction Quatech SDS User’s Manual Locating serial and network ports Serial port(s) SDS serial ports connect via cables to your s erial device(s). The number of these ports wi ll vary depending on the S DS model. All SDS models come with DB-9 serial po rt connectors.
Quatech SDS User’s Manual Introduction Figure 3 - RJ-45 pinouts (DB-9 to RJ-45 adapter) Figure 4 and Tables 5 and 6 s h o w t h e RS-232/422/485 -RJ-45 pinouts and signal descriptions.
Introduction Quatech SDS User’s Manual Network port All SDS devices have one eight-pin RJ- 45 Ethernet port on the b ack panel. Figure 4 - RJ-45 Ethernet port pinout 1 2 3 4 5 6 7 8 Figure 5 and Table 7 s how the Ethernet RJ-45 pinouts and signal descriptions.
Quatech SDS User’s Manual Making connections Making connections You can ea sily connect each seria l port on your SDS to any seria l device that you want to make accessible to an Eth ernet network. Figure 6 shows a four-port SDS connected to a printer.
Enabling Wi-Fi Device Servers Quatech SDS User’s Manual Enabling Wi-Fi Device Server s Quatech’s Wi-Fi Device Servers ne ed to have a wir eless network connection es tablished before they can be con figured for use. To enable the wireless conn ection, you need to obtain the SDS’ IP address as outlined below.
Quatech SDS User’s Manual Enabling Wi-Fi Device Servers Step Procedure Description Step 1 Turn on the power to your comp uter system. Step 2 Insert the Quatech SDS i nstallation CD- ROM into your CD- ROM drive.
Installing the device drivers Quatech SDS User’s Manual Installing the device driv ers This section explains how to insta ll the SDS software under the Windows 2000, Windows NT4, and Wi ndows XP operat ing systems. Note: You must install the drivers on the installat ion CD- ROM on every computer that accesses the d evice(s) attached to the SDS.
Quatech SDS User’s Manual Installing the device drivers Figure 7 - Welcome screen Step Procedure Description Step 5 Click the Next button to continu e.
Installing the device drivers Quatech SDS User’s Manual Step Procedure Description Step 7 Connect power to the SDS. Connect the cable attached to the power source to the SDS. Pl ug the connector of the unattached power cable into the power source’s socket.
Quatech SDS User’s Manual Installing the device drivers Step Procedure Description Step 11 One of two possible screens displays: ¾ Where is the Serial Device Server attached? ¾ Reconfigure the.
Installing the device drivers Quatech SDS User’s Manual Figure 11 - Network Connectivity Test screen Figure 12 shows the Netwo rk Connectivity Test prompt. T his prompt informs you that the Wizard is ready to ch eck the IP connectivity of the SDS. Step Procedure Description Step 14 Press the Next button to run the IP connectivity test.
Quatech SDS User’s Manual Installing the device drivers Figure 13 - TCP/IP Network Conf iguration Parameters screen Figure 14 shows the following T C P / I P network configuration parameters: ¾ Add.
Installing the device drivers Quatech SDS User’s Manual Figure 14 - Internet Protocol (T CP/IP) Properties dialog box Step Procedure Description Step 17 The Internet Protocol Propert ies (TCP/IP) dialog box lets you change the SDS configuration so that it c an operate in its permanent location.
Quatech SDS User’s Manual Installing the device drivers Figure 15 - Restart confirmation pop-up box Figure 16 shows the Restart confirmation pop-up box. Step Procedure Description Step 20 Press OK to restart the SDS and mak e your changes active.
Installing the device drivers Quatech SDS User’s Manual Figure 17 - TCP/IP Network Conf iguration Parameters screen Step Procedure Description Step 22 Press the Next button to cont inue. The Rerun ne twork connectivity test pop- up box displays.
Quatech SDS User’s Manual Installing the device drivers Figure 19 - Network Connectivity Test screen Figure 20 shows the Netwo rk Connectivity Test prompt. T his prompt informs you that the Wizard is ready to ch eck the IP connectivity of the SDS. Step Procedure Description Step 24 Press the Next button to run the IP connectivity test.
Installing the device drivers Quatech SDS User’s Manual Figure 21 - TCP/IP Network Conf iguration Parameters screen Figure 22 shows the TCP/IP network configuration parameters including the followin.
Quatech SDS User’s Manual Installing the device drivers Figure 23 - Installation Complete screen Figure 24 illustrates the Installation Complete screen. Note: This screen provi des a link to Windows Device Manager where yo u can view or change the S DS configurat ion parameters or uninstall t he SDS.
Installing the device drivers Quatech SDS User’s Manual Win NT Device Manager Windows NT does no t provide a Device Ma nager; howev er, you can use Quatech’s Device Ma nager to manage all the Quatech devices installed on your machine. Dou b le click the Device Man ager (DM) icon on your desktop t o launch.
Quatech SDS User’s Manual Installing the device drivers Uninstalling your SDS Uninstalling from Windows XP/2000 Follow these steps in th e event that you nee d to uninstall or rein stall the SDS software on a Windows XP or 2000 system. 1. From the Control Panel, select System.
Installing the device drivers Quatech SDS User’s Manual Alternative installation steps This section supplemen ts the basic installati on procedure by t aking you through alternative installation s cenarios. It then directs you to the appropriate step in th e basic procedure.
Quatech SDS User’s Manual Installing the device drivers Figure 25 - Serial Device Server is Configured for a Remote Subnet Step Procedure Description Step 31 Select one of the f ollowing options: ¾ I’ve already moved the SDS to the remote subnet.
Installing the device drivers Quatech SDS User’s Manual Figure 26 - Internet Protocol (T CP/IP) Properties dialog box Figure 27 shows t he current configuration parameters for the SDS. You can change these parameters by keying in t he desired values.
Quatech SDS User’s Manual Installing the device drivers Figure 27 - Restart confirmation pop-up box Step Procedure Description Step 35 Press OK to restart the SDS and mak e your changes active. The SDS reboots and takes on the new configuration.
Installing the device drivers Quatech SDS User’s Manual Figure 29 - TCP/IP Network Conf iguration Parameters screen Figure 30 shows the TCP/IP network configuration parameters including the followin.
Quatech SDS User’s Manual Installing the device drivers Figure 31 - DHCP confirmation pop-up box Figure 32 shows DHCP se rver confirmation pop-up box. Only answer Yes if you are sure t hat the DHCP server will alwa ys assign the sam e IP address to the SDS.
Installing the device drivers Quatech SDS User’s Manual Figure 33 - Locate the Serial Device Server screen Figure 34 offers you th ree options to locate your new SDS: ¾ Find an SDS that is plugged directly in to your computer’s NIC. ¾ Find an SDS that is attached to a remote subnet.
Quatech SDS User’s Manual Installing the device drivers Figure 34 - Locate the Serial Device Server using direct discovery screen Figure 35 explains how to connect the SDS to your computer for location and configuration purposes.
Installing the device drivers Quatech SDS User’s Manual Figure 35 - Locate the Serial Device Server on a remote subnet screen Figure 36 explains the options you have to search for an SDS on a remote subnet. Step Procedure Description Step 45 Select one of the three follow ing options: ¾ The SDS is preconfigured for the remote subnet.
Quatech SDS User’s Manual Installing the device drivers Figure 36 - Describe the Remote Subnet screen Figure 37 explains how to gather the information you need to search for your SDS on a remote subnet. Step Procedure Description Step 46 Locate the target sub net’s default gateway address.
Installing the device drivers Quatech SDS User’s Manual Figure 37 - Locate the Serial Device Server options screen Figure 38 illustrates the Locate the Serial Device Server screen. You can eithe r connect the SDS to a local hub or switch or you can connect it directly to your comput er.
Quatech SDS User’s Manual Installing the device drivers Fig ure 3 8 - Loca te the Serial Device Serv er local discovery s cre en Step Procedure Description Step 49 Connect the SDS to a local hub or swit ch. Use a standard Ethernet cable to connect the Ethernet port on the S DS to the hub or switch.
Installing the device drivers Quatech SDS User’s Manual Figure 39 - Select Desired Serial Device Server from list screen Figure 40 shows a complete list of all the Quatech serial device servers. This list will change as the SDS family grows. Step Procedure Description Step 53 Locate and highlight your SDS device.
Quatech SDS User’s Manual Installing the device drivers Figure 40 - Specify IP Addr ess screen Figure 41 prompts you for the IP address of your SDS . Step Procedure Description Step 54 Enter the IP address for y our SDS in the box provided. Press the Next button to cont inue.
Installing the device drivers Quatech SDS User’s Manual Figure 41 - Network Connectivity Test Failed screen Figure 42 displays when the IP connection test fails.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Configuring the SDS using the W eb interface This section explains how to con figure an SDS using a standard Web browser so that it can communicat e over a network with a serial device.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Follow these steps to man age your SDS using a Web int erface. Step Procedure Description Step 1 Open your Web browser. We recommend Internet Explorer 5.0 or higher. Step 2 Type the IP address for t he SDS in the Web browser’s URL (address) field.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Setting network parameters Once you have mad e the initial netwo rk connection, you can mainta in and configure this connection using Quatech’s Web inter face. Of course, you can always go back and use the Install ation Wizard to program the settings for t he SDS.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Figure 43 - Network Setup screen Step Procedure Description Step 1 Select between a Static IP address an d one set by the DHCP server. For Static only, set the IP address. This must be a unique address in your network.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Step Procedure Description Step 3 For Static only, set the Address mask. The Address mask is a string of 0's and 1's that screens out the network part of an IP address so that only the host computer part remains.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Step Procedure Description Step 5 Configure the SSID (n etwork name). The Service Set Identifier (SSID) is the name assigned to your wireless network. All devices on a wireless network must be configured with the same SSID.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Step 11 Enter the WEP Keys in hex. These are two digit hex values that will be used for the WEP keys. Valid characters are 0-9, a, b, c, d, e, and f. Step 12 Press Submit to conf igure the SDS with your settings.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Setting SNMP parameters SDS devices with firmware revisi on 5.0 and higher have been enhanced with additional Flash RAM to support S NMP. Older hardware does not have sufficient memory t o store the SNMP agent.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Step Procedure Description Destination inform ation. ¾ IP Address: ¾ Community Name: The host IP address you set here is where the SDS will send its traps. A community name, which is si milar to a password, must always be provided.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Figure 48 - SNMP Address Update Successful screen Step Procedure Description Step 6 Click on the link t o reset the SDS. The Remote Reset screen displays. Figure 49 - Remote Reset screen Step Procedure Description Step 7 Press Reset to activate your settings.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Viewing the serial port parameters Step Procedure Description Preliminary Step Select Serial Ports from the selecti on bar and then select Ser ial Port Status from the left panel.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Step Procedure Description Note: Setup screen s vary slightly betwee n RS-232 and RS-232/422/48 5 (MEI) units. If you have an RS-232/422/485 (MEI) SDS, the Configure Serial Port Interface step wi ll display so that you can s elect between RS- 232 and RS-422/485 operation.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Step Procedure Description ¾ Force X4 mode ¾ Force X8 mode Note: Forcing a change in th e data rate may cause communication probl ems with some serial devices. If this is the case, chan ge the setting back to Auto (Recommended).
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Step Procedure Description Step 4 (non-MEI) / Step 5 (MEI) applies to al l units Step 4 (non-MEI) or Step 5 (MEI only) Repeat the steps abov e for each port you need to configure and then press Save to implement al l of your changes.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Figure 53 - Serial Port Setup screen for Tunneling mode Note: Click on a link to see a pop-up help screen for that item . Step Procedure Description Step 1 Select the serial port you want to configure.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Step Procedure Description Balanced mode offers excellent performance for most applications. Low Latency mode heavily favors responsiveness over throughput.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Step Procedure Description Step 4b (MEI only) Click on the desired duplex mode s elector. Select Full Duplex to always en able transmit and receive drivers. Select Half Rx to enable the transmit drivers only when the SDS is transmitting; receivers are always enabled.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual If you have an RS-232 SDS, the Configur e Serial Port Interface step will not di splay and you will not be presented with any R S- 422/485 configu ration options.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Step Procedure Description ¾ Force X2 mode ¾ Force X4 mode ¾ Force X8 mode Note: Forcing a change in th e data rate may cause communication probl ems with some serial devices. If this is the case, chan ge the setting back to Auto (Recommended).
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Step Procedure Description Step 4c (MEI only) Click on the desir ed connector setup. Select Loopback All to internally loopback RTS and CTS in t h e S D S. Au x I n a nd AuxOut are looped at the connector.
Quatech SDS User’s Manual Config uring the SDS using a Web interface without any new d ata, the SDS closes the connec tion. The Auto TCP Timeout is used only in Data m ode, not in the DSR mode. Step Procedure Description Preliminary Step Click on Serial Ports in the select ion bar.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Figure 55 - Serial Port Setup screen for Auto TCP mode Note: Click on a link to see a pop-up help screen for that item . Step Procedure Description Step 1 Select the serial port you want to configure.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Step Procedure Description performance for most applications. Low Latency mode heav ily favors responsiveness over thr oughput . Step 3c Set the Heart Beat Time to a value from 1 to 65534 seconds.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Step Procedure Description (MEI only) Click on the desir ed interface sel ector. units, such as the SSE-400. If you select RS232, the RS422/485 selections will be gr ayed out. C ontinue with □ Step 5 .
Quatech SDS User’s Manual Config uring the SDS using a Web interface UDP has three possible modes of communication that you select according to the IP/UDP address you enter: ¾ Point to point – key in a specific device’s address to communicate only with that device ¾ Broadcast – key in the br oadcast address of 255.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Figure 56 - Serial Port Setup screen for Raw UDP mode Note: Click on a link to see a pop-up help screen for that item . Step Procedure Description Step 1 Select the serial port you want to configure.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Step Procedure Description responsiveness over thr oughput. Step 3c Set the Heart Beat Time to a value from 1 to 65534 seconds. Default is 45 sec onds. Note: Use a value of 0 to disable the h eartbeat timer.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Step Procedure Description ¾ 127 Worldwide ¾ 255 Unrestricted Steps 4a through 4d apply onl y to RS-232/422/485 (MEI) units Step 4a (MEI only) Configure the seri al port interface.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Running diagnostic tests Using the Port Status screen Step Procedure Description Preliminary Step Click on Diagnostics fr om the selection bar. The Port Status screen displays.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Step Procedure Description Press Ping to run the test. Note : This utility is not int ended to ping the SDS from a PC, but for the SDS to ping a PC or other device. To ping the SDS from a PC on the network, use the ping command from a DOS command line.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Performing administrative functions The Admin functions let you updat e the software, assign a descriptive name to the SDS, and manage users (contr ol who can access the SDS from the Web interface).
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Figure 62 - Add/Del Users screen Step Procedure Description Step 1 Enter the user name and password in the boxes provid ed. Passwords appear as asterisks. Step 2 Select the Add option.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Figure 64 - Add/Del Users screen Step Procedure Description Step 1 Enter the user name and password in the boxes provid ed. Be sure to enter them exactly as they were originally keyed in when the user was added.
Configuring the SDS using a Web inter face Quatech SDS User’s Manual Upgrading firmware Step Procedure Description Preliminary Step Click on Admin in th e selection bar and then select Upgrade Firm ware from the left panel. The Upgrade Firmware screen displays.
Quatech SDS User’s Manual Config uring the SDS using a Web interface Contacting Quatech Step Procedure Description Step 1 From the Home screen, sele ct Contact Us.
Troubleshooting and Maintainin g an SDS Quatech SDS User’s Manual T roubleshooting and Maintaining an SDS Troubleshooting an SDS This section lists some com mon problems and their causes. If the information below does not prov ide a solution, contact Quatech technical support.
Quatech SDS User’s Manual Troubl eshooting and Maintaining an SDS Problem Cause Solution The search utility does not find the SDS, cont. ¾ Check LAN ¾ Check subnet Verify that the link status light un der the LAN connection is lit. If it is no t lit, 1.
Troubleshooting and Maintainin g an SDS Quatech SDS User’s Manual Problem Cause Solution Your applica tion cannot open the COM port ¾ Wrong COM port number or other COM port-r elated problem; problem with application 1. Is the application set up t o use the correct COM port number? a.
Quatech SDS User’s Manual Troubl eshooting and Maintaining an SDS Maintaining an SDS Operating conditions The SDS series is des igned to work in envir onments that are fr ee from dust, dirt, and moisture. You can operate an S DS at temperatures between 0 ° to 70°C.
Appendix A Quatech SDS User’s Manual Appendix A Specifications Size Product Size (L x W x H) SSE/DSE-100/400 4.6” x 3.8” x 1.2” (11.8 x 9.5 x 2.9 cm) Mounting flanges add 1.0” (2.5 cm) to widt h. QSE-100/400 10.0 ” x 5.3 ” x 1.3 ” (25.
Quatech SDS User’s Manual Appendix A Signals: RJ-45: DB-9: View looking into the connector View looking into the connector RS-232 signal Pin # RS-422/485 signal, 4-wire mode RS-422/485 signal, 2-wir.
Appendix A Quatech SDS User’s Manual Transmitter outputs RS-232: High Level Output: +5 V (min), +5.4 V (typical ) Low Level Output: –5 V (min), –5.
Quatech SDS User’s Manual Appendix A Hardware Processor: Freescale / Motorola Power PC SDRAM: 8 MB FLASH Memory: 2 M B FLASH is field upgrad eable over Ether net connection Switches All models: On back panel: ¾ Reset : Reset s the unit and does a har d reboot.
Appendix A Quatech SDS User’s Manual 1- and 2-port models: All LEDs have the same definiti ons a s above and are located as indicated below: ¾ Power – top cover ¾ Link – left side of Eth ernet.
Quatech SDS User’s Manual Appendix B Appendix B Declaration of Conformity Manufacturer's Name Quatech Inc. Manufacturer' s Address: 5675 Hudson Industrial Parkway Hudson, Ohio 44236-5012 (.
Appendix B Quatech SDS User’s Manual FCC Notice: This equipment has been tested and fo und to comply with the limits for a Class A digital device, pu rsuant to part 15 of the F CC Rules. These limits are designed to prov ide reasonable pr otection agains t harmful interference when th e equipment is operat ed in a commerc ial environment .
Quatech SDS User’s Manual Appendix C Appendix C Warranty information Quatech , Inc. warra nts the Se rial Devic e Serve r to be free of defects in mater ials and workmanship for a period of five (5) years from the d ate of purchase.
Appendix C Quatech SDS User’s Manual OF PRODUCTS OR SERVIC ES BUNDLED WITH THE PRODUCTS, QU ATECH IS NOT LIABLE OR RESPONSIBLE FOR ANY AMOUNT OF DAMAGES ABOVE THE A GGREGATE DOLLAR AMOUNT PAID BY CUSTOM ER FOR THE PURCHASE OF PRODU CTS UNDER THIS AGREEMENT.
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 Quatech Serial Device Server 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 Quatech Serial Device Server - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Quatech Serial Device Server, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Quatech Serial Device Server va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Quatech Serial Device Server, 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 Quatech Serial Device Server.
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 Quatech Serial Device Server. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Quatech Serial Device Server 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.
