LinksysメーカーSRW248G4の使用説明書/サービス説明書
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USER GUIDE BUSINESS SERIES W ebView S witches Model: SRW2048, SRW2024, SRW2016, SRW248G4, SRW224G4.
ii About This Guide W ebView S witches About T his Guide Icon Descriptions While reading through the User Guide you may see various icons that call attention to specific items.
i T able of Contents W ebView S witches Chapter 1: Introduction 1 Chapter 2: Product O verview 2 SRW2048 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 F ront Panel . . . . . . . . . . . . . . .
ii T able of Contents W ebView S witches Chapter 5: Advanced C onguration 20 Over view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Accessing the Web-based Utility . . . . . . . . . . . . .
iii T able of Contents W ebView S witches Security > RADIUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Security > T A CACS+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv T able of Contents W ebView S witches Admin > Static A ddress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 Quer y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
v T able of Contents W ebView S witches User Information for C onsumer Products Cov ered by EU Directive 2002/96/EC on Waste Electric and Elec tronic Equipment ( WEEE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Appendix H: Software License Agreement 82 Soft ware in Linksys P roducts: .
1 Introduc tion W ebView S witches Chapter 1 Chapter 1: Intr oduc tion Thank you for choosing Linksys W ebView Switches. This User Guide cov ers five product models: SRW2048 • 48-port 10/100/1000 Gigabit Switch with W ebView . Includes 48 10/100/1000 RJ-45 ports and 4 shared SFP (MiniGBIC) slots.
2 Produc t Over view W ebView S witches Chapter 2 Chapter 2: Pr oduc t O v er view SRW2048 Front P anel The Switch ’ s LEDs and por ts are locat ed on the front panel. Fr ont Panel of the SRW2048 LEDs POWER (Gr een) Lights up green to indicate that power is being supplied t o the Switch.
3 Produc t Over view W ebView S witches Chapter 2 C ONSOLE The Switch is equipped with a serial por t labeled Console (located on the back of the switch) that allows you to connect to a computer’ s serial por t (for configuration purposes) using the provided serial cable.
4 Produc t Over view W ebView S witches Chapter 2 C ONSOLE The Switch is equipped with a serial por t labeled Console (located on the back of the switch) that allows you to connect to a computer’ s serial por t (for configuration purposes) using the provided serial cable.
5 Produc t Over view W ebView S witches Chapter 2 NO TE: If you need to reset the Switch, unplug the power cord from the back of the Swit ch. W ait a few seconds and then reconnect it. SRW248G4 Front P anel The Switch ’ s LEDs and por ts are located on the front panel.
6 Produc t Over view W ebView S witches Chapter 2 C ONSOLE The Switch is equipped with a serial por t labeled Console (located on the back of the switch) that allows you to connect to a computer’ s serial por t (for configuration purposes) using the provided serial cable.
7 Produc t Over view W ebView S witches Chapter 2 POWER The Power por t is where you will connect the AC power . C ONSOLE The Switch is equipped with a serial por t labeled Console (located on the back of the switch) that allows you to connect to a computer’ s serial por t (for configuration purposes) using the provided serial cable.
8 Connec ting the Switch W ebView S witches Chapter 3 Chapter 3: C onnec ting the Swit ch Over view This chapter will explain how to connect network devices to the Switch. For an example of a t ypical net work configuration, see the application diag ram shown below .
9 Connec ting the Switch W ebView S witches Chapter 3 T o rack-mount the Switch in an y standard 482.6-mm wide , 1U high rack, follow the instructions described below . Place the Switch on a hard flat sur face with the front 1. panel facing you. Attach a r ack–mount bracket to one side of the Swit ch 2.
10 Configuration U sing the Console Inter face W ebView S witches Chapter 4 Chapter 4: C onfigura tion Using the C onsole Inter face Over view The S witch featur es a menu-driven console inter face for basic configuration of the Switch and management of your network.
11 Configuration U sing the Console Inter face W ebView S witches Chapter 4 T elnet Login Screen Pr ess the Esc button to return to the login screen. Use the right arrow button t o na vigate to the Execute option and press the Enter butt on to open CLI inter face.
12 Configuration U sing the Console Inter face W ebView S witches Chapter 4 V ersions The V ersions screen display s the Switch ’ s boot, software, and hardware firm ware versions. V ersions General System Inf ormation The General System Information screen displays general information about the Swit ch.
13 Configuration U sing the Console Inter face W ebView S witches Chapter 4 T elnet Configuration The T elnet Configuration screen displays the timeout value. The value is entered in seconds. If you do not want the T elnet session to timeout, you may en ter a value of 0 sec.
14 Configuration U sing the Console Inter face W ebView S witches Chapter 4 SSH Cr ypto Key Gener ation On the SSH Crypto Key Generation screen, you can toggle between RSA and DSA using the SP ACE bar . The SSH Public Key L ength cannot be modified. SSH Crypto Key Generation Select Edit and pr ess the Enter key to make changes .
15 Configuration U sing the Console Inter face W ebView S witches Chapter 4 SSL Certificate Generation Use the C er tificate Generation screen to specify a device- generated certificate. SSL Certificate Generation Public Key Length Specifies the SSL RSA key length.
16 Configuration U sing the Console Inter face W ebView S witches Chapter 4 IP Address C onfiguration The IP Address Configuration screen lets you configure the Switch ’ s IP address information. IP Address C onfiguration IP Address The IP Address of the Switch is display ed.
17 Configuration U sing the Console Inter face W ebView S witches Chapter 4 Network C onfiguration The Network Configur ation screen offers a choice of two tests: Ping and T raceRoute. Network Configuration Ping The Ping screen displays the IP address of the location you want to contact.
18 Configuration U sing the Console Inter face W ebView S witches Chapter 4 File Management The File Management screen allows you to upload or download files , such as the star tup configuration, boot, or image file, using a TFTP ser ver . File Management Select Edit to change the settings .
19 Configuration U sing the Console Inter face W ebView S witches Chapter 4 P or t Configuration On the Switch Main Menu screen, selec t P or t Configuration and press the Enter key if you want to configure the Switch ’ s por ts.
Chapter 5 Advanced Configura tion 20 W ebView S witches Chapter 5: A dvanced C onfiguration Over view This chapter describes the f eatures included in the W eb- based Utility . All of the features shown in this chapter , unless specifically identified, are included in all of the W ebView Switches.
Chapter 5 Advanced Configura tion 21 W ebView S witches IP Address The IP address assigned to the Switch. This setting can be configured from the Setup tab ’ s Network Settings screen. Subnet Mask The Subnet Mask assigned to the Switch. This setting can be configured from the Setup tab ’ s Network Settings screen.
Chapter 5 Advanced Configura tion 22 W ebView S witches Click Sav e Settings to sav e your changes. Click Cancel Changes to cancel your changes . Setup > Time The Time screen allows you to configure the time settings for the Swit ch. Setup > Time Set Time Use System Time Selec t this option to use the local hardware clock.
Chapter 5 Advanced Configura tion 23 W ebView S witches Setup > Green Ethernet The Green Ethernet Configuration screen allows you to enable energy - efficient Ethernet (EEE). EEE optimizes power consumption by monitoring both por t and system power requirements, while minimizing energy consumption.
Chapter 5 Advanced Configura tion 24 W ebView S witches PVE When a port is a Private VLAN Edge (PVE) por t, it bypasses the Forwarding Database and forwards all unicast, multicast, and broadcast traffic to an uplink . Uplinks can be ports or LAGs. Detail The Detail butt on opens the Port Configuration Detail screen.
Chapter 5 Advanced Configura tion 25 W ebView S witches PVE When a port is a Private VLAN Edge (PVE) por t, it bypasses the Forwarding Database and forwards all unicast, multicast, and broadcast traffic to an uplink. NO TE: All por ts in the same PVE g roup should join the same VLAN group .
Chapter 5 Advanced Configura tion 26 W ebView S witches Selec t P or ts Ports Displays the por ts that are members of the selected LAG. P or t Management > L A CP Y ou can use the Link Aggr egation Control P rotocol (LA CP) to link aggregate por ts into link aggregation por t groups.
Chapter 5 Advanced Configura tion 27 W ebView S witches VLAN Management > Port S etting The VL AN Port Setting screen provides parameters for managing por ts that are par t of a VLAN. The port default VLAN ID (PVID) is configured on the VLAN Port Setting screen.
Chapter 5 Advanced Configura tion 28 W ebView S witches VLAN Management > VLAN to P or ts The VL AN to Por ts screen contains fields for configuring VLANs to a ports. VLAN Management > VLAN to Ports Port Displays the int er face number . Mode Indicates the port-to -VLAN mode.
Chapter 5 Advanced Configura tion 29 W ebView S witches Statistics > RMON Statistics The RMON Statistics screen contains fields for viewing information about device utilization and errors that occurred on the device . Statistics > RMON Statistics Interface Indicates the device for which statistics are displayed .
Chapter 5 Advanced Configura tion 30 W ebView S witches Statistics > RMON History The RMON Histor y screen contains information about samples of data taken from por ts. F or example, the samples may include interface definitions or polling periods.
Chapter 5 Advanced Configura tion 31 W ebView S witches Undersize P ackets Displays the number of undersized packets (less than 64 octets) receiv ed on the interface since the device was last r efreshed. Oversize P ackets Displays the number of oversized packets (over 1518 oc tets) received on the inter face since the device was last refr eshed.
Chapter 5 Advanced Configura tion 32 W ebView S witches Coun ter V alue Displays the current counter value for the particular alar m. Statistics > RMON Ev ents The RMON E vents screen contains fields for defining RMON events. Statistics > RMON Events Add Ev ent Ev ent Entry Displays the event.
Chapter 5 Advanced Configura tion 33 W ebView S witches Statistics > 802.1x Statistics The 802.1X Statistic screen contains information about EAP packets receiv ed on a specific por t. Statistics > 802.1x Statistics Port Indicates the port, which is polled for statistics.
Chapter 5 Advanced Configura tion 34 W ebView S witches The GVRP Error Statistics T able contains the following fields: Inv alid Prot ocol ID Displays the device GVRP I nvalid Pr otocol ID statistics. Inv alid A ttribute T ype Displays the device GVRP Invalid Attribute ID statistics .
Chapter 5 Advanced Configura tion 35 W ebView S witches Source Port Defines the T CP/UDP source por t to which the ACE is matched. This field is active only if 800/6- TCP or 800/17-UDP ar e selected in the Selec t fr om List drop- down menu. The possible field range is 0–65,535 .
Chapter 5 Advanced Configura tion 36 W ebView S witches Ether T ype Specifies the packet ’ s Ethernet type. Use the Add to List button to add the configured MA C Based ACLs to the MAC Based ACL T able at the bottom of the screen.
Chapter 5 Advanced Configura tion 37 W ebView S witches 802.1X • Indicates that the R ADIUS ser ver is used for 802.1X authentication. All • Indicates that the RADIUS ser ver is used for authenticating user name and passwor ds, and 802.1X port authentication.
Chapter 5 Advanced Configura tion 38 W ebView S witches Use the Setting Timer button to open the S etting Timer screen to configur e por ts for 802.1x functionality. 802.1x Settings > S etting Timer 802.1x Settings > Setting T imer Port Indicates the port name.
Chapter 5 Advanced Configura tion 39 W ebView S witches Learning Mode D efines the locked por t t ype. The L earning Mode field is enabled only if Locked is selected in the Interface Status field. The possible field values are: Classic Lock • Locks the por t using the classic lock mechanism.
Chapter 5 Advanced Configura tion 40 W ebView S witches Sec urity > Storm Control Security > Storm Control Port Displays the port number for which storm control is enabled. Broadcast Control Indicates whether broadcast packet types are forwarded on the specific interface.
Chapter 5 Advanced Configura tion 41 W ebView S witches Class of Ser vice Specifies the CoS priorit y tag values, where 0 is the low est and 7 is the highest. Queue Defines the tr affic forwarding queue t o which the CoS priorit y is mapped. F our tr affic priority queues are supported.
Chapter 5 Advanced Configura tion 42 W ebView S witches Queue shaping can be based per queue and/or per interface. Shaping is determined by the lower specified value. The queue shaping t ype is selected in the Bandwidth screen. Interface Indicates the interface for which the queue shaping inf ormation is displayed.
Chapter 5 Advanced Configura tion 43 W ebView S witches Use the Policy Settings button to open the Policy Name screen. Advanced Mode > P olic y Name Advanced Mode > P olic y Name Policy Name D efines a new P olic y name. Add to List The Add to List button lets you add the policy to the P olic y Name table.
Chapter 5 Advanced Configura tion 44 W ebView S witches Spanning T ree > STP Status The STP Status screen describes the STP status on the device. Spanning T ree > STP Status Spanning T ree State I ndicates if STP is enabled on the device. Spanning T ree Mode Indicates the STP mode by which STP is enabled on the device.
Chapter 5 Advanced Configura tion 45 W ebView S witches Pa th Cost Default V alues Specifies the method used to assign default path costs to STP ports. The possible field values are: Short • Specifies a 1–65,535 range for por t path costs. This is the default value.
Chapter 5 Advanced Configura tion 46 W ebView S witches Pa th Cost Indicates the por t contribution to the root path cost. The path c ost is adjusted t o a higher or lower value, and is used to for ward traffic when a path being rerout ed. Default Path Cost When selec ted the default path cost is implemented.
Chapter 5 Advanced Configura tion 47 W ebView S witches Multiple STP • Indicates that Multiple STP is enabled on the device. F ast Link I ndicates if F ast Link is enabled or disabled for the por t or LAG.
Chapter 5 Advanced Configura tion 48 W ebView S witches Spanning T ree > MSTP Instance S ettings MSTP operation maps VLANs int o STP instances. Packets assigned to various VLANs are transmitted along diff erent paths within Multiple Spanning T rees R egions (MST Regions).
Chapter 5 Advanced Configura tion 49 W ebView S witches Alternate • Pr ovides an alternat e path t o the root device from the r oot inter face. Backup • Pr ovides a backup path to the designated port path toward the Spanning T ree leaves. Backup ports occur only when two por ts are connected in a loop by a point-to-point link .
Chapter 5 Advanced Configura tion 50 W ebView S witches Leav e Timeout Indicates the amoun t of time the host waits, af ter r equesting to leave the IGMP group and not receiving a Join message from another station, before timing out.
Chapter 5 Advanced Configura tion 51 W ebView S witches SNMP > Global Paramet ers The Global Par ameters screen contains parameters for defining SNMP notification parameters . SNMP > Global Paramet ers Local Engine ID I ndicates the local devic e engine ID .
Chapter 5 Advanced Configura tion 52 W ebView S witches SNMP > Group Profile The Group P rofile screen provides inf ormation for creating SNMP gr oups and assigning SNMP access control privileges to SNMP groups . Groups allow network managers to assign access rights to specific device featur es, or featur es aspects.
Chapter 5 Advanced Configura tion 53 W ebView S witches Authentica tion Key Defines the HMAC-MD5-96 or HMAC-SHA-96 authentication level. The authentication and privac y keys are entered to define the authentication key . I f only authentication is required, 16 bytes are defined.
Chapter 5 Advanced Configura tion 54 W ebView S witches Base T able Management Station Displays the management station IP address for which the basic SNMP community is defined. Community String Displays the password used to authenticate the management station t o the device.
Chapter 5 Advanced Configura tion 55 W ebView S witches SNMP > Notification Recipient The Notification Recipient screen contains information for defining filt ers that determine whether traps are sen t to specific users, and the trap type sent.
Chapter 5 Advanced Configura tion 56 W ebView S witches User Name Displays the user name. Passw ord Specifies the new passwor d. The passwor d is not display ed. As it entered an “*” corresponding to each character is displayed in the field. The range is 1–159 characters.
Chapter 5 Advanced Configura tion 57 W ebView S witches MAC A ddress Specifies the M AC address for which the table is queried. VLAN ID Specifies the VLAN ID f or which the table is queried. Address T able Sor t Key Specifies the means by which the Dynamic M AC Address T able is sor ted.
Chapter 5 Advanced Configura tion 58 W ebView S witches Error • A system error has occurr ed. W arning • A system warning has occurred . Notice • The system is functioning properly , but system notice has occurred . Informational • Pr ovides device information.
Chapter 5 Advanced Configura tion 59 W ebView S witches Admin > Save C onfiguration Admin > Save C onfiguration Via TFTP Upgrade S elect this option to upgrade the switch from a file located on a TFTP ser ver . TFTP Server • The TFTP Ser ver IP Address that contains the source file to upg rade from.
Chapter 5 Advanced Configura tion 60 W ebView S witches Admin > Reboot The Reboot screen r esets the device . The device configuration is automatically saved before the device is rebooted .
Chapter 5 Advanced Configura tion 61 W ebView S witches Admin > Memor y Logs The Memor y L og screen contains all system logs in a chronological or der that are saved in RAM ( Cache). Admin > Memory Logs Log Index Displays the log number . Log Time Displays the time at which the log was generated .
62 About Gigabit Ethernet and Fiber Optic Cabling W ebView S witches Appendix A Appendix A: About Gigabit Ethernet and F iber Optic Cabling Gigabit Ethernet Gigabit Ethernet runs at speeds of 1Gbps ( Gigabit per second), ten times faster than 100Mbps F ast Ethernet, but it still integ rates seamlessly with 100Mbps Fast Ethernet hardware .
63 Appendix B Window s Help W ebView S witches Appendix B: W indow s Help Almost all net working products require Microsoft Window s. Windows is the most used operating system in the world and comes with many features that help make networking easier .
64 Downloading using Xmodem W ebView S witches Appendix C Appendix C: Downloading using Xmodem Star tup Menu Procedures The Star tup menu can be enter ed when booting the device. There is a two sec ond window of time to enter the Startup Menu immediately after the POST test.
65 Downloading using Xmodem W ebView S witches Appendix C Pr ess 9. Send and the soft ware is downloaded . Download After the software has been downloaded, the device will reboot automatically .
66 Glossar y W ebView S witches Appendix D Appendix D: Glossar y This glossar y contains some basic net working terms y ou may come across when using this pr oduct. WEB: F or additional terms, please visit the glossary at w w w .linksys.com/glossary Ac cess Mode Specifies the method by which user access is granted t o the system.
67 Glossar y W ebView S witches Appendix D CoS (Class of Ser vice) The 802.1p priority scheme. CoS provides a method for tagging packets with priorit y information. A CoS v alue between 0-7 is added t o the Layer II header of packets , wher e z ero is the lowest priorit y and seven is the highest.
68 Glossar y W ebView S witches Appendix D MAC (Media Access Control) Address The unique address that a manufacturer assigns to each networking device. Mask A filter that includes or excludes cer tain values, for example parts of an IP address. Mbps (MegaBits Per Second) One million bits per second; a unit of measurement f or data transmission.
69 Glossar y W ebView S witches Appendix D T CP (T ransmission C ontrol Protocol) A network prot ocol for transmitting data that requires acknowledgement from the recipient of da ta sent. T CP/IP ( T ransmission Control Protocol/Internet Protoc ol) A set of instructions PCs use to communica te over a network.
70 Specific ations W ebView S witches Appendix E Appendix E: Specifications SRW2048 Ports 48 RJ-45 connectors for 10BASE-T, 100BASE-TX and 1000BASE-T with 4 shared SFP (miniGBIC) slots Cabling Type UT.
71 Specific ations W ebView S witches Appendix E QoS Priority levels 4 Hardware queues Scheduling Priority Queueing and Weighted Round Robin (WRR) Class of Service Port-based 802.
72 Specific ations W ebView S witches Other Management RFC854 Telnet (Menu-driven configuration) Secure Shell (SSH) and Telnet Management RADIUS TACACS+ Telnet Client SSL security for Web UI Switch Audit Log DHCP Client BootP SNTP Xmodem upgrade Cable Diagnostics PING Traceroute Syslog Security Features IEEE 802.
73 Specific ations W ebView S witches SRW224G4/SRW248G4 Ports 24 or 48 RJ-45 connectors for 10BASE-T and 100BASE-TX, 4 RJ-45 connectors for 10BASE- T/100BASE-TX/1000BASE-T with 2 shared SFP (miniGBIC).
74 Specific ations W ebView S witches QoS Priority levels 4 Hardware queues Scheduling Priority Queueing and Weighted Round Robin (WRR) Class of Service Port-based 802.
75 Appendix F Warranty Inf ormation W ebView S witches free of vulnerability to intrusion or attack. The product may include or be bundled with third party sof tware or ser vice offerings . This limited warranty shall not apply to such third par t y sof tware or service offerings.
76 Appendix F Warranty Inf ormation W ebView S witches product to Linksys at your cost and risk . Y ou must include the RMA number and a copy of your dated proof of original purchase when returning your product. Products receiv ed without a RMA number and dated proof of original purchase will be rejected.
77 Regula tor y Information W ebView S witches Appendix G Appendix G: Regulat or y Information FCC Sta tement This equipment has been tested and complies with the specifications for a Class A digital device, pursuant to Part 15 of the FCC Rules.
78 Regula tor y Information W ebView S witches Appendix G User Inf ormation for Consumer Pr oduc ts Cov ered by EU Directive 2002/96/EC on W aste Elec tric and Elec tronic Equipment ( WEEE) This document contains impor tant inf ormation f or users with regards to the proper disposal and recycling of Linksys products.
79 Regula tor y Information W ebView S witches Appendix G Eesti (Estonian) - K eskkonnaalane informatsioon Euroopa Liidus asuv atele klientidele Euroopa Liidu direktiivi 2002/96/EÜ nõuete kohaselt on seadmeid, millel on tootel või pakendil k äesolev sümbol , keelatud kõr valdada koos sor teerimata olmejäätmetega.
80 Regula tor y Information W ebView S witches Appendix G Lietuvškai (Lithuanian) - Aplink osaugos informacija, skir ta Europos Sąjungos vartotojams Europos dir ekty va 2002/96/EC numat o, kad įran.
81 Regula tor y Information W ebView S witches Appendix G Português (P or tuguese) - Informação ambiental para clientes da União Eur opeia A Directiva Europeia 2002/96/CE exige que o equipamento que exibe est e símbolo no produto e/ou na sua embalagem não seja eliminado junto com os resíduos municipais não separados.
82 Sof tware License Agreement W ebView S witches Appendix H Appendix H: Sof tware Lic ense A greement Soft ware in Linksy s Produc ts: This product from Cisco-Linksys LL C or from one of its affiliates Cisc o Systems-Linksys (Asia) Pte Lt d. or Cisco- Linksys K.
83 Sof tware License Agreement W ebView S witches Appendix H your Linksys product and/or the Soft ware is being used in accordanc e with the terms of this Agreement; (iii) to pro vide improv ements to.
84 Sof tware License Agreement W ebView S witches Appendix H Preamble The licenses for most soft ware are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended t o guarantee your freedom to shar e and change free software--to make sure the software is free for all its users.
85 Sof tware License Agreement W ebView S witches Appendix H c) If the modified program nor mally reads commands interactively when run, you must cause it, when star ted running for such interactive u.
86 Sof tware License Agreement W ebView S witches Appendix H License and any other pertinent obligations , then as a consequence y ou may not distribute the P rogram at all.
87 Sof tware License Agreement W ebView S witches Appendix H Copyright (c) 1998-2007 The OpenSSL P roject. All rights reserved. Redistribution and use in source and binar y forms, with or without modification, are permitted provided that the following c onditions are met: 1.
88 Sof tware License Agreement W ebView S witches Appendix H THE AUTHOR OR CONTRIBUT ORS BE LIABLE FOR ANY DIREC T , INDIREC T , INCIDENT AL, SPECIAL, EXEMPLARY , OR CONSEQUENTIAL DAM AGES (INCL UDING.
89 Contac t Informa tion W ebView S witches Appendix I Appendix I: C ontac t Informa tion Linksys C ontact Information W ebsite http://ww w .linksys.com Support Site http://www.linksys .com/suppor t FTP Site ftp.linksys .com Advice Line 800-546-5797 (LINKSYS) Support 800-326-7114 RMA (Return Merchandise Authorization) http://www .
デバイスLinksys SRW248G4の購入後に(又は購入する前であっても)重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります:
Linksys SRW248G4をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはLinksys SRW248G4の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Linksys SRW248G4の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Linksys SRW248G4で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Linksys SRW248G4を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はLinksys SRW248G4の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Linksys SRW248G4に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちLinksys SRW248G4デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。