Gebruiksaanwijzing /service van het product SCS van de fabrikant Logical Solutions
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Logical Solutions Inc. 100 Washington Street Milford, Connecticut 06460 U.S.A. Telephone (203) 647-8700 Fax (203) 783-9949 www.thinklogical.com Secure Console Servers SCS and SCS-R Models Product Manu.
SCS160 / SCS320 / SCS480 Page 2 www.thinklogical.com SCS160R / SCS320R Copyright Notice Copyright © 2003 All Rights Reserved. Printed in the U.S.A. Logical Solutions Incorporated 100 Washington Street Milford, Connecticut 06460 U.S.A. Telephone (203) 647-8700 All trademarks and services marks are property of their respective owners.
tel (203) 647-8700 Page 3 Product Manual - MAN-000001C S E C U R E C O N S O L E S E R V E R S SCS160 / SCS320 / SCS480 / SCS160R / SCS320R Product Manual 1 Introduction - - - - - - - - - - - - - - - - - - - - - - 9 1.1 SCS Models Covered in this Manual - - - - - - - - - - - - - - 9 1.
SCS160 / SCS320 / SCS480 Page 4 www.thinklogical.com SCS160R / SCS320R 3.2 Connections - - - - - - - - - - - - - - - - - - - - - - - - - - 22 3.2.1 Power - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 22 3.2.2 AC Input - - - - - - - - - - - - - - - - - - - - - - - - - - - - 22 3.
tel (203) 647-8700 Page 5 Product Manual - MAN-000001C S E C U R E C O N S O L E S E R V E R S 5.3 Default Services - - - - - - - - - - - - - - - - - - - - - - - - 44 5.
SCS160 / SCS320 / SCS480 Page 6 www.thinklogical.com SCS160R / SCS320R 7.9 NIS and User Port Permissions - - - - - - - - - - - - - - - - - 61 7.9.1 User Port Control - - - - - - - - - - - - - - - - - - - - - - - 61 7.9.2 Changing Serial Port settings - - - - - - - - - - - - - - - - - - 61 7.
tel (203) 647-8700 Page 7 Product Manual - MAN-000001C S E C U R E C O N S O L E S E R V E R S 9.3 What Can A User Do - - - - - - - - - - - - - - - - - - - - - - 72 9.3.1 Access via Network - - - - - - - - - - - - - - - - - - - - - - 72 9.3.2 ssh to a Port - - - - - - - - - - - - - - - - - - - - - - - - - - 72 9.
SCS160 / SCS320 / SCS480 Page 8 www.thinklogical.com SCS160R / SCS320R A File System - - - - - - - - - - - - - - - - - - - - - - 85 Read-Only vs. Read-Write - - - - - - - - - - - - - - - - - - - 85 Re.
tel (203) 647-8700 Page 9 Product Manual - MAN-000001C SCS Models Covered in this Manual S E C U R E C O N S O L E S E R V E R S 1 Introduction Introducing the Logical Solutions Inc.
Introduction SCS160 / SCS320 / SCS480 Page 10 www.thinklogical.com SCS160R / SCS320R Figure 1.2 SCS160R Secure Console Server, front and rear views The following SCS models are available for International customers, and are shipped with regionally-appropriate AC power cordsets (otherwise similar to the SCS160 / SCS320 / SCS480, respectively).
Software Features S E C U R E C O N S O L E S E R V E R S tel (203) 647-8700 Page 11 Product Manual - MAN-000001C Figure 1.3 SCS320 Secure Console Server (32 Ports), front and rear views 1.3 Software Features The SCS is designed with network administrators in mind.
Introduction SCS160 / SCS320 / SCS480 Page 12 www.thinklogical.com SCS160R / SCS320R Figure 1.4 SCS480, 48-Port Secure Console Server, front and rear views The SCS can help you troubleshoot your networking environment. The SCS is a "listening" system that monitors the messages (ASCII data, server error information, etc.
Technical Specifications S E C U R E C O N S O L E S E R V E R S tel (203) 647-8700 Page 13 Product Manual - MAN-000001C 1.5 Technical Specifications Each Logical Solutions SCS system is designed to t.
Introduction SCS160 / SCS320 / SCS480 Page 14 www.thinklogical.com SCS160R / SCS320R Figure 1.5 SCS320R, showing front and rear views.
tel (203) 647-8700 Page 15 Product Manual - MAN-000001C Intended Application S E C U R E C O N S O L E S E R V E R S 2 Product Overview Optimize your System Administration and Network Resources 2.
Product Overview SCS160 / SCS320 / SCS480 Page 16 www.thinklogical.com SCS160R / SCS320R 2.2 System Chassis Each SCS is housed in the rack-mountable metal chassis. Vents are found on both sides of the chassis, and 3-position rack mount brackets are provided and removable.
tel (203) 647-8700 Page 17 Product Manual - MAN-000001C Connecting to the SCS S E C U R E C O N S O L E S E R V E R S 2.3 Connecting to the SCS All physical connections to the product are made to the rear panel using industry- standard cabling and connectors (purchased separately).
Product Overview SCS160 / SCS320 / SCS480 Page 18 www.thinklogical.com SCS160R / SCS320R 2.3.2 IP Network The SCS network interface is an auto-sensing 10 BaseT/100 BaseTX network con- nector (equipped with an RJ45 jack with dual LEDs) for use with a conventional TCP/ IP network using standard RJ45 Category 5 cables.
tel (203) 647-8700 Page 19 Product Manual - MAN-000001C User Access Control S E C U R E C O N S O L E S E R V E R S 2.4 User Access Control Access to a Port is controlled on a per-user basis via a user profile, which is stored as a file on the local SCS.
Product Overview SCS160 / SCS320 / SCS480 Page 20 www.thinklogical.com SCS160R / SCS320R For Your Notes.
tel (203) 647-8700 Page 21 Product Manual - MAN-000001C Mounting the SCS S E C U R E C O N S O L E S E R V E R S 3 Installation Place it in your Rack. Connect the Cat5 cables to the Ports. Plug it in. 3.1 Mounting the SCS You may choose to rack mount your SCS unit(s) or place them on a shelf.
Installation SCS160 / SCS320 / SCS480 Page 22 www.thinklogical.com SCS160R / SCS320R 3.1.2 Front Panel Display and Buttons The front-panel LCD display should be visible and accessible during system setup. It normally shows the current network settings and the date/time.
tel (203) 647-8700 Page 23 Product Manual - MAN-000001C Connections S E C U R E C O N S O L E S E R V E R S 3.2.3 Connecting to the Network Port Use a conventional fully-pinned Category 5 cable to connect your network connec- tion to the NETWORK jack (RJ45) on the rear of the chassis.
Installation SCS160 / SCS320 / SCS480 Page 24 www.thinklogical.com SCS160R / SCS320R 3.2.4.1 SCS160R / SCS320R Dual Console Interface The SCS160R / SCS320R has dual Console Ports, with the Console Port 1 pinned as DCE and the Console Port 2 pinned as DTE.
tel (203) 647-8700 Page 25 Product Manual - MAN-000001C Connections S E C U R E C O N S O L E S E R V E R S 3.2.5.2 Serial Port Pinout Figure 3.2 Serial Port Pinout - DCE (default) and DTE Use a conve.
Installation SCS160 / SCS320 / SCS480 Page 26 www.thinklogical.com SCS160R / SCS320R 3.3 SCS160R / SCS320R Power Modules The SCS160R and 320R provide dual AC power inputs which are field-replaceable, which connect to the rear panel of the SCS chassis.
tel (203) 647-8700 Page 27 Product Manual - MAN-000001C SCS160R / SCS320R Power Modules S E C U R E C O N S O L E S E R V E R S 3.3.1 AC Power Module Replacement The AC Power Modules of the SCS160R and SCS320R may be hot-swapped if necessary by a competent technician.
Installation SCS160 / SCS320 / SCS480 Page 28 www.thinklogical.com SCS160R / SCS320R Figure 3.5 Replacing an AC Module (Left Module shown partially removed) Note To remove the AC Module, you only need to loosen the one captive screw on the Module.
tel (203) 647-8700 Page 29 Product Manual - MAN-000001C Default Configuration S E C U R E C O N S O L E S E R V E R S 4 Initial Configuration It’s Pre-Configured.
Initial Configuration SCS160 / SCS320 / SCS480 Page 30 www.thinklogical.com SCS160R / SCS320R 4.2 Initial System Security Concerns The first login will require several steps to fully secure the SCS. When you first connect the SCS and turn it on, the SCS will build the ssh host keys during the first two minutes of system startup.
tel (203) 647-8700 Page 31 Product Manual - MAN-000001C Initial Connection via Network S E C U R E C O N S O L E S E R V E R S 4.3.3 Route via Windows workstation If using a Linux workstation, ignore this section. If using Windows 9x/2000/XP, you can connect to the SCS using your networked Windows PC and an ssh-capable terminal emulation package.
Initial Configuration SCS160 / SCS320 / SCS480 Page 32 www.thinklogical.com SCS160R / SCS320R Figure 4.2 PuTTY Configuration Screen The first time you connect using ssh, you will get a warning about the ssh authen- tication keys. Accept the newly-generated keys by choosing ‘yes’ .
tel (203) 647-8700 Page 33 Product Manual - MAN-000001C Front Panel Network Setup S E C U R E C O N S O L E S E R V E R S When successfully logged in, you will see the command prompt ending with # fol- lowed by your cursor. You should change your SCS’s network address as one of the first changes you make.
Initial Configuration SCS160 / SCS320 / SCS480 Page 34 www.thinklogical.com SCS160R / SCS320R Note Use the ENTER button to ‘continue’ or to ‘accept current setting’, whichever is appropriate at that time.
tel (203) 647-8700 Page 35 Product Manual - MAN-000001C Front Panel Network Setup S E C U R E C O N S O L E S E R V E R S 4.4.1.2 Program Network When you select the Program Network Settings mode, you step through the parameter entry for Network IP Address, Net Mask and Gateway, and Exit to the pre- vious menu.
Initial Configuration SCS160 / SCS320 / SCS480 Page 36 www.thinklogical.com SCS160R / SCS320R As soon as you change a digit, an asterisk (*) will appear to the right on the top line, indicating that a parameter has changed.
tel (203) 647-8700 Page 37 Product Manual - MAN-000001C Front Panel Network Setup S E C U R E C O N S O L E S E R V E R S Figure 4.8 SCS Front Panel Display, editing the Net Mask setting As soon as you change a digit, an asterisk (*) will appear to the right on the top line, indicating that a parameter has changed.
Initial Configuration SCS160 / SCS320 / SCS480 Page 38 www.thinklogical.com SCS160R / SCS320R Figure 4.11 SCS Front Panel Display, Edit the Gateway setting Press the Left or Right arrow button to move the cursor to the first digit to be changed. To change a digit, use the Up or Down arrows to change the number.
tel (203) 647-8700 Page 39 Product Manual - MAN-000001C Front Panel Network Setup S E C U R E C O N S O L E S E R V E R S Figure 4.14 SCS Front Panel Display, exiting the LCD Mode You are given the choice to Save your changes or to Cancel them. Figure 4.
Initial Configuration SCS160 / SCS320 / SCS480 Page 40 www.thinklogical.com SCS160R / SCS320R For Your Notes.
tel (203) 647-8700 Page 41 Product Manual - MAN-000001C SCS Systems are Linux-based S E C U R E C O N S O L E S E R V E R S 5 System Administration 5.1 SCS Systems are Linux-based The Logical Solutions Secure Console Server products use the GNU/Linux oper- ating system.
System Administration SCS160 / SCS320 / SCS480 Page 42 www.thinklogical.com SCS160R / SCS320R 5.1.3 SCS System Architecture The SCS software design uses both RAM (volatile) and Compact Flash (non-vola- tile) memory. Any system changes are maintained in RAM until they are written to the Compact Flash memory.
tel (203) 647-8700 Page 43 Product Manual - MAN-000001C Initial Sysadmin Access S E C U R E C O N S O L E S E R V E R S 5.2.2 Log In as root At the command prompt, type root to access the SCS as the root user.
System Administration SCS160 / SCS320 / SCS480 Page 44 www.thinklogical.com SCS160R / SCS320R 5.3 Default Services The following Services are enabled by default: • network • ssh • syslog • cron You may add other features and services, depending on your application.
tel (203) 647-8700 Page 45 Product Manual - MAN-000001C Default Services S E C U R E C O N S O L E S E R V E R S 5.3.1.1 Configure the Services When you first install the SCS system, you should configure the default services for your needs. This addresses the network, the date/time, authorizations, and the system hostname.
System Administration SCS160 / SCS320 / SCS480 Page 46 www.thinklogical.com SCS160R / SCS320R For Your Notes.
tel (203) 647-8700 Page 47 Product Manual - MAN-000001C System Commands S E C U R E C O N S O L E S E R V E R S 6 Commands A summary of special SCS Commands 6.1 System Commands The SCS products use Linux command formats, and man pages are available and online for all system commands.
Commands SCS160 / SCS320 / SCS480 Page 48 www.thinklogical.com SCS160R / SCS320R 6.2 save Command The SCS systems will maintain your settings in RAM memory as long as system power is applied and the system remains in a normal operating condition. To perma- nently store your parameters, the system has a save command.
tel (203) 647-8700 Page 49 Product Manual - MAN-000001C poweroff S E C U R E C O N S O L E S E R V E R S 6.4 poweroff If you want to turn the system power off (e.g., to move the chassis, etc.) you must first run the poweroff command before turning the power switch off.
Commands SCS160 / SCS320 / SCS480 Page 50 www.thinklogical.com SCS160R / SCS320R Refer to the man pages for scp for a description and any command options. sftp Use sftp for a secure file transfer transaction using ssh, between two servers. This process is similar to ftp except that it is encrypted for security.
tel (203) 647-8700 Page 51 Product Manual - MAN-000001C Change Logging Level S E C U R E C O N S O L E S E R V E R S Note For example, to administer Port 7 you would edit the file rc.serial and would use stty -F /dev/ttyB7 . Refer to the man pages for stty for a description and any command options.
Commands SCS160 / SCS320 / SCS480 Page 52 www.thinklogical.com SCS160R / SCS320R For Your Notes.
tel (203) 647-8700 Page 53 Product Manual - MAN-000001C Security S E C U R E C O N S O L E S E R V E R S 7 System Administration This section outlines the administration functions and commands, accessed using your Network or the Console port.
System Administration SCS160 / SCS320 / SCS480 Page 54 www.thinklogical.com SCS160R / SCS320R 7.2.1 Run netconfig After you establish a connection to the SCS using your network, you may want to change the IP address setting of the SCS to the desired address on your network, using netconfig .
tel (203) 647-8700 Page 55 Product Manual - MAN-000001C Change Network Address S E C U R E C O N S O L E S E R V E R S Figure 7.1 Example of netconfig fill-in fields When you have filled in the fields, arrow down to the OK button and press Enter to accept your entries.
System Administration SCS160 / SCS320 / SCS480 Page 56 www.thinklogical.com SCS160R / SCS320R 7.3 Change Hostname The SCS includes a command changehostname which allows the root user to change the long hostname of the SCS unit. 1. Log in as root. 2. Type changehostname .
tel (203) 647-8700 Page 57 Product Manual - MAN-000001C Configure Authentications S E C U R E C O N S O L E S E R V E R S This file already has the various commands in place, but they are commented out. Edit your /etc/module.conf as appropriate. Remove the ' # ' from one of the four options lines above, and then reload the NIC driver.
System Administration SCS160 / SCS320 / SCS480 Page 58 www.thinklogical.com SCS160R / SCS320R Figure 7.2 Default ‘Normal’ Front Panel Display, The front panel will display system messages (e.g., during reboot or save events) but will return to the ‘normal’ display after these events are done.
tel (203) 647-8700 Page 59 Product Manual - MAN-000001C Network Time Service S E C U R E C O N S O L E S E R V E R S 7.7.1.3 LINE_1 LINE_1= info allows the Customer to show any data they choose on the upper line of the display. The root user enters a left-justified text line, up to 24 characters, which will be displayed.
System Administration SCS160 / SCS320 / SCS480 Page 60 www.thinklogical.com SCS160R / SCS320R 7.8.1 Configure NTP The file /etc/ntp.conf has many options. We want to define the time servers to use. You need the hostname (or IP address) of the time servers you wish to access.
tel (203) 647-8700 Page 61 Product Manual - MAN-000001C NIS and User Port Permissions S E C U R E C O N S O L E S E R V E R S 7.9 NIS and User Port Permissions The SCS can use NIS to control user access to the Ports in addition to controlling user access to the SCS itself.
System Administration SCS160 / SCS320 / SCS480 Page 62 www.thinklogical.com SCS160R / SCS320R 7.9.3 NIS Port Access The file lsi_port_access contains the port permissions for connect, monitor and clear. It is referenced by a group; you may define any number of groups you need.
tel (203) 647-8700 Page 63 Product Manual - MAN-000001C NIS and User Port Permissions S E C U R E C O N S O L E S E R V E R S 7.9.4 User Names and Groups The LSI Port User Definition file ( /nis/lsi_port_users ) is used to assign a user to a given Port Access group.
System Administration SCS160 / SCS320 / SCS480 Page 64 www.thinklogical.com SCS160R / SCS320R 7.9.6 NIS Make file The file Makefile.nis.portAccess is used to create the lsi port database. To build the database, the above files (listed in Section 7.9, NIS and User Port Permis- sions , on page 61) need to be loaded on the NIS server.
tel (203) 647-8700 Page 65 Product Manual - MAN-000001C SNMP S E C U R E C O N S O L E S E R V E R S mounted, then create the additional directories under the /mnt directory (e.
System Administration SCS160 / SCS320 / SCS480 Page 66 www.thinklogical.com SCS160R / SCS320R The default file entry is *.notice , with lower level settings (a lower level generates more messages) in *.info . 7.13 Timeouts The SCS system supports timeout on the network port.
tel (203) 647-8700 Page 67 Product Manual - MAN-000001C User Setup S E C U R E C O N S O L E S E R V E R S 8 Administering Users The following commands are used to change settings for Users. You can define as many Users as you wish, up to the memory capacity of the system.
Administering Users SCS160 / SCS320 / SCS480 Page 68 www.thinklogical.com SCS160R / SCS320R There are three permissions in the user config files: ALLOW_CONNECT User can enter interactive mode (file name is /dev/ttyB nnn ). In order to browse a buffer, a user must have connect permissions on that port.
tel (203) 647-8700 Page 69 Product Manual - MAN-000001C User Setup S E C U R E C O N S O L E S E R V E R S 8.1.4.1 editbrk <name> Use editbrk <name> to edit the break sequence for a user. The break sequence (user key strokes, default is 'ESC - B') is presented in its ASCII form.
Administering Users SCS160 / SCS320 / SCS480 Page 70 www.thinklogical.com SCS160R / SCS320R For Your Notes.
tel (203) 647-8700 Page 71 Product Manual - MAN-000001C User Accounts S E C U R E C O N S O L E S E R V E R S 9 User Operations Commands that an End User needs to connect to their Servers through the SCS 9.1 User Accounts The SCS has two types of user accounts: user, and root.
User Operations SCS160 / SCS320 / SCS480 Page 72 www.thinklogical.com SCS160R / SCS320R 9.2 Port Identities Each Port is numbered ( 1 through 48 ) and have default names ( port1 through port48 , respectively) and may also be given a familiar name by the sysadmin.
tel (203) 647-8700 Page 73 Product Manual - MAN-000001C What Can A User Do S E C U R E C O N S O L E S E R V E R S To escape from interactive mode, the interactive mode escape sequence must be used.
User Operations SCS160 / SCS320 / SCS480 Page 74 www.thinklogical.com SCS160R / SCS320R 9.3.6.1 Edit Escape Sequence The User can edit the Escape command sequence, if necessary. The user only change the escape sequence if it causes problems with the hardware or software used.
tel (203) 647-8700 Page 75 Product Manual - MAN-000001C Safety Requirements S E C U R E C O N S O L E S E R V E R S 10 Regulatory & Safety Regulatory Information and Contact Information 10.1 Safety Requirements 10.1.1 Symbols found on the Product Markings and labels on the product follow industry-standard conventions.
Regulatory & Safety SCS160 / SCS320 / SCS480 Page 76 www.thinklogical.com SCS160R / SCS320R 10.2 Regulatory Compliance The Logical Solutions Inc. SCS products are designed and made in the U.
tel (203) 647-8700 Page 77 Product Manual - MAN-000001C European Union S E C U R E C O N S O L E S E R V E R S 10.4.2 Standards With Which the Products Comply Safety • IEC60950:1992+A1, A2, A3, A4, .
Regulatory & Safety SCS160 / SCS320 / SCS480 Page 78 www.thinklogical.com SCS160R / SCS320R Note This Class A digital apparatus complies with Canadian ICES-003 and has been verified as being compl.
tel (203) 647-8700 Page 79 Product Manual - MAN-000001C SCS160R / SCS320R Power Modules S E C U R E C O N S O L E S E R V E R S 10.7 SCS160R / SCS320R Power Modules The SCS160R and SCS320R systems have hot-swappable AC Power Modules which can be replaced by a competent technician in the field without interrupting ser- vice.
Regulatory & Safety SCS160 / SCS320 / SCS480 Page 80 www.thinklogical.com SCS160R / SCS320R For Your Notes.
tel (203) 647-8700 Page 81 Product Manual - MAN-000001C Customer Support S E C U R E C O N S O L E S E R V E R S 11 How to Contact Logical 11.1 Customer Support Thank You to our Customers for choosing a Logical Solutions product for your application. We appreciate your business and are interested in helping you successfully use our products.
How to Contact Logical SCS160 / SCS320 / SCS480 Page 82 www.thinklogical.com SCS160R / SCS320R Note Most online documents are stored as Adobe Acrobat “PDF” files. If you do not have the Adobe Acrobat Reader needed to view PDF files, visit www.adobe.
tel (203) 647-8700 Page 83 Product Manual - MAN-000001C Product Support S E C U R E C O N S O L E S E R V E R S 11.2 Product Support Logical Solutions Inc.’s support personnel are available Monday through Friday from 8:30AM to 5:30PM, Eastern Time Zone.
How to Contact Logical SCS160 / SCS320 / SCS480 Page 84 www.thinklogical.com SCS160R / SCS320R For Your Notes.
tel (203) 647-8700 Page 85 Product Manual - MAN-000001C Product Support S E C U R E C O N S O L E S E R V E R S Appendix A File System A.1 Read-Only vs.
How to Contact Logical SCS160 / SCS320 / SCS480 Page 86 www.thinklogical.com SCS160R / SCS320R A.1.2 LSI Directories The following LSI directories are important for the SCS products: /etc /home /var /root /lsi The save command tar’s these directories and stores the tar file in /misc .
tel (203) 647-8700 Page 87 Product Manual - MAN-000001C Product Support S E C U R E C O N S O L E S E R V E R S Appendix B FAQ A few frequently-asked questions B.1 How do I do this? This section is a collection of tips and hints for various setup items.
How to Contact Logical SCS160 / SCS320 / SCS480 Page 88 www.thinklogical.com SCS160R / SCS320R B.1.3 View a Buffer You use less, cat, etc.to view a port’s buffer. There are at least two methods: /lsi/ports/buf_<portname> or /proc/port_buffers/<portnumber> B.
tel (203) 647-8700 Page 89 Product Manual - MAN-000001C Product Support S E C U R E C O N S O L E S E R V E R S.
SCS160 / SCS320 / SCS480 MAN-000001C - 90 pages www.thinklogical.com SCS160R / SCS320R For Your Notes.
Een belangrijk punt na aankoop van elk apparaat Logical Solutions SCS (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 Logical Solutions SCS 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 Logical Solutions SCS vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding Logical Solutions SCS leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over Logical Solutions SCS krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van Logical Solutions SCS 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 Logical Solutions SCS kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met Logical Solutions SCS . 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.
