Moxa TechnologiesメーカーMoxa EtherDevice Switchの使用説明書/サービス説明書
ページ先へ移動 of 98
Moxa EtherDevice™ Switch EDS-510A Series User ’ s Manual www .moxa.com/product First Edition, October 2006 Moxa Networki ng C o., Ltd. Tel: +886-2-2910-1230 Fax: +886-2-2910-1231 Web: www.moxa.com Moxa Technical Support World wide: support@moxanet.
Moxa EtherDevice™ Switch EDS-510A Series User’s Manual The software d escribed in t his manual is furnished u nder a license a greement and m ay be used only in accordance with the term s of that agreement. Copyright Notice Copyright © 2006 Moxa Networking Co.
Table of Contents Chapter 1 Introduction ............................................................................................... 1-1 Overview .....................................................................................................
Sample Applications of VL ANs using M oxa EDS-510A ....................................... 3-39 Configuring Vi rtual LAN ........................................................................................ 3- 40 Using Multicas t Filtering ........
1 1 Chapter 1 Introduction Welcome to M oxa EtherDe vice Switch E DS-510A Seri es, the Giga bit Manage d Redunda nt Ethernet Swit ch designed spe cially for c onnecting Et hernet-enabled de vices in i ndustrial fiel d applications.
EDS-510A Series User’s Manual Introduction 1-2 Overview As the world ’s network a nd inform ation technol ogy becom es more mature, the trend is t o use Ethernet as the major c ommunications inte rface in many industri al communications and automati on applications.
EDS-510A Series User’s Manual Introduction 1-3 y Bandwidt h management to prevent u npredictabl e network s tatus y Lock port for allowing access to authorized MAC addresses only y Port mirroring fo.
2 2 Chapter 2 Getting Started This chapter explains how t o access the EDS-510A for the first time. There are three ways to access the switch: serial console, Tel net console, and web browser.
EDS-510A Series User’s Manual Getting Started 2-2 RS-232 Console Configuration (115200, None, 8, 1, VT100) NOTE Conne ction Caut ion! 1. You cannot connect to the EDS -510A sim ultaneously by seri al console and Telnet. 2. You can connect t o the EDS-510A si multaneousl y by web br owser and serial console, or by web browser an d Telnet.
EDS-510A Series User’s Manual Getting Started 2-3 3. The Communication P arameter page of the Property window ope ns. Select the appropriate COM port for Cons ole Connection , 115200 for Ba u d R a te , 8 fo r Data Bits , None for Parity , and 1 for Stop Bits .
EDS-510A Series User’s Manual Getting Started 2-4 6. The Console login screen will appear. Press Enter to open the Accoun t pop-up selector and then select either admin or user .
EDS-510A Series User’s Manual Getting Started 2-5 Configuration using a Telnet Console You may use Telnet to access the EDS-510A’s c onsole utility over a network.
EDS-510A Series User’s Manual Getting Started 2-6 4. When the Main Menu of the EDS-510A’s cons ole utility op ens, click Terminal Æ p references… from the menu at t he top of th e window. 5. When the Ter minal Preferences window opens, make sure that the VT100 Arrows option is selected.
EDS-510A Series User’s Manual Getting Started 2-7 Perform the following steps to access th e E DS-510A’s web browser interfa ce. 1. Open Int ernet Explore r and type E DS-510A’s IP a ddress in t he Address field. Press Enter to establish the conn ection.
EDS-510A Series User’s Manual Getting Started 2-8 Disabling Telnet and Browser Access If you are connecting the EDS-510A to a public networ k, but do not inte nd to use i ts managem ent functions ov.
3 3 Chapter 3 Featured Functions In this chapter, we explai n how to access the EDS-510A’s configuration options, perform monitoring, and use administrati on functions. There are t hree ways to access these functi ons: RS-232 consol e, Telnet consol e, and web brow ser.
EDS-510A Series User’s Manual Featured Functions 3-2 Configuring Basic Settings The Basic Settings group includes the most commonly used settings required by administrators to maintain and con trol EDS-5 10A. System Identification The system identification items are displayed at the top of the web page, and will be included in alarm emails.
EDS-510A Series User’s Manual Featured Functions 3-3 Password The EDS-510A provides two levels of access privilege: admin privilege gives read/write access to all EDS-510A configuration parameters, and user privilege prov ides read access on ly. You will be able to view the configuration, but will not be able to make modifications.
EDS-510A Series User’s Manual Featured Functions 3-4 Accessible IP The EDS-510A uses an IP address -based filte ring method to control access to the EDS-510A units. Accessible IP Settings allows you t o add or r emove “Legal” rem ote host IP addresses to prevent unauthorized access.
EDS-510A Series User’s Manual Featured Functions 3-5 Port Port settings a re included t o give the user control over Port Access, Port Transm ission Speed, Flow Control, and Port Type (M DI or MDIX). An explanation of each confi guration item follows: Enable Setting Description Factory Defaul t checked Allows data transmissi on through t he port.
EDS-510A Series User’s Manual Featured Functions 3-6 Speed Setting Description Factory Defaul t Auto Allows the port to use th e IEEE 802.3u protoc o l to negotiate with connect ed devices. The port and connected devices will determine the best speed for that co nnection.
EDS-510A Series User’s Manual Featured Functions 3-7 Auto IP Configuration Setting Description Factory Default Disable Set up the EDS-510A’ s IP address manually. By DHCP The EDS-510A’s IP address will be assigned automatically by th e network’s DHCP server.
EDS-510A Series User’s Manual Featured Functions 3-8 Time The EDS-510 A has a tim e calibration f unction base d on inform ation from an NTP serve r or user specified Tim e and Date info rmation. Funct ions such as Auto wa rning “Email” can add real-time information to the message.
EDS-510A Series User’s Manual Featured Functions 3-9 NOTE Changing the time zone will automatically c o rrect the current time. You should configure the time zone before setting the time . Time Server IP/Name Setting Description Factory Default 1st Time Serve r IP/Name IP or Dom ain address (e.
EDS-510A Series User’s Manual Featured Functions 3-10 EDS-510A Series DIP Switches 12 ------ MASTER COUPLER TURBO RING 34 The default setti ng fo r eac h D IP Sw itch is OFF. The following table explains the effect of setting th e DIP Switch to the ON position.
EDS-510A Series User’s Manual Featured Functions 3-11 NOTE The Turbo Ring Ports and Coupling Ports will be added to all VLANs if you enab le the “Tu rbo Ring DIP S witch” and set Turbo Rin g DIP Swit ch from OFF to ON .
EDS-510A Series User’s Manual Featured Functions 3-12 After setting up the desired path and file name, click Activate to save the sett ing, and then cl ick Downloa d to download the prepared file from the remote TFTP server, or click Upload t o upload the desired file to the remote TFTP server.
EDS-510A Series User’s Manual Featured Functions 3-13 Auto load system configura tions when system boots up Setting Description Factory Defaul t Enable Enables Auto load system configuratio ns when .
EDS-510A Series User’s Manual Featured Functions 3-14 the other seven ports will provide back up and share the traffic automatically. Port trunking can be used to co mbin e up to 8 ports between two ED S- 51 0 A swi t ches.
EDS-510A Series User’s Manual Featured Functions 3-15 Configuring Port Trunking The Port Trunking Settings page is use d to assign po rts to a Trunk Group. Step 1: Select Trk1, Trk2, Trk3, or Trk 4 from the Trunk Group drop- down box. Step 2: Select Static, or LACP from the Trunk Type drop-down box.
EDS-510A Series User’s Manual Featured Functions 3-16 Available Ports/Member Port Setting Description Factory Defaul t Member/Available Ports Use Up / Down buttons t o add/rem ove specific ports from avail able ports to/ from trun k group. N/A Check box Check to designate which ports to ad d or remove.
EDS-510A Series User’s Manual Featured Functions 3-17 Protocol Version UI Setting Au thentication Type Data Encryption Method V1, V2c Read Community Community string No Use a com munity string match.
EDS-510A Series User’s Manual Featured Functions 3-18 only allows reading the MIB file, but do es not have authorization to write. Admin Auth. Type (for SNMP V1, V 2c, V3, and V3 only) Setting Description Factory Defaul t No-Auth Use admin. account to access objects.
EDS-510A Series User’s Manual Featured Functions 3-19 1 st Trap Community Setting Description Factory Defaul t character string Use a comm unity string m atch for authenticati on (maxim um of 30 characters).
EDS-510A Series User’s Manual Featured Functions 3-20 Ring, if any segment of the network gets disco nn ected, your automation system will be back to normal in less than 300 ms. NOTE Port trunking and Turb o Ring can be enabled simultaneo usly to form a backbon e.
EDS-510A Series User’s Manual Featured Functions 3-21 When the number of EDS-510A units in the Turbo Ring is even. Master If there are 2N EDS-510 A units (an even number) in t he Turbo Ri ng, then the backup segment is one of the two segments connected to the (N+1)s t ED S-510A (i.
EDS-510A Series User’s Manual Featured Functions 3-22 Ring Coupling Switch A: " Coupler " Switch B Switch C Switch D Main Path Coupling Port Backup Path Coupling Control Port To support the Ring Coupling fu nction, select two EDS-510A (e.g.
EDS-510A Series User’s Manual Featured Functions 3-23 Configuring Turbo Ring Use the Communication Redund ancy page t o configure Turbo Ri ng. Now Active This field s hows which c ommunicati on protocol is i n use: Turb o Ring, RSTP, or neither. Master/Slave This field a ppears only when Turbo R ing mode is selected fo r Redundanc y Protocol .
EDS-510A Series User’s Manual Featured Functions 3-24 Redundancy P rotocol Setting Description Factory Defau l t Turbo Ring Select this item to change to the Turbo Ring configur ation page. None RSTP (IEEE 802.1W/ 1D) Select this item to change to the RSTP config uration page .
EDS-510A Series User’s Manual Featured Functions 3-25 NOTE The STP proto col is part of the IEEE Std 802.1D, 1998 Edit ion bridge specification. T he following explanation uses bridge instead of switch. What is STP? STP (802.1D) is a bridge -based system that is us ed to implement parallel paths for network traffic.
EDS-510A Series User’s Manual Featured Functions 3-26 What happe ns if a lin k failure is det ected? As s hown in next figure, the STP process reconfigures the network s o that traffic f rom LAN segm ent 2 flows t hrough Bri dge B.
EDS-510A Series User’s Manual Featured Functions 3-27 y Which bri dge shoul d be the Root Bridge. Th e Root Brid ge is the cent ral reference point from which the network i s confi gured. y The Root Path Costs for eac h bridge. T his is the cost of the paths from each bridge to t he Root Bridge.
EDS-510A Series User’s Manual Featured Functions 3-28 Bridge A LAN Segment 3 LAN Segment 2 LAN Segment 1 Port 2 (Root Bridge) Port 1 (Designated Bridge Port) Bridge B Port 2 (Designated Bridge Port).
EDS-510A Series User’s Manual Featured Functions 3-29 Block Switch A Switch B Switch C VLAN1 VLAN2 802.1Q tagged, 10BaseTx half-duplex Link carries VLAN1, 2 (path cost = 100) 100BaseTX full-duplex L.
EDS-510A Series User’s Manual Featured Functions 3-30 At the bottom of this page, the user can co nfigur e the “Settings” of this function. For RSTP, you can configure: Protocol of Redun d ancy Setting Description Factory Default Turbo Ring Select this item to change to the Tu rbo Ring configuratio n p age.
EDS-510A Series User’s Manual Featured Functions 3-31 NOTE We suggest not enabling the Spanning Tree Protocol once the port i s connected to a device (PLC , RTU, etc.) as opposed to network equipment. The reason is that it will cause unn ecessary negotiation.
EDS-510A Series User’s Manual Featured Functions 3-32 Using Traffic Prioritization EDS-510A’s traffic prioritization capability provides Qu ality of Service (QoS ) to your network by making data delivery more reliable. You can prioritize traffic on your netwo rk to ensure that high priority data is transmitted with minimum delay.
EDS-510A Series User’s Manual Featured Functions 3-33 IEEE 802.1p Priority Level IEEE 802.1D Traffic Type 0 Best Effort (default) 1 Background 2 Standard (spare ) 3 Excellent Effort (business critic.
EDS-510A Series User’s Manual Featured Functions 3-34 2. As the 802.1p pri ority levels are fixed to the traffic queues, the packet will be placed in the appropriate priority queue, read y for transmission through the appropriate egress port.
EDS-510A Series User’s Manual Featured Functions 3-35 Moxa EDS- 510A sup ports inspecti on of lay er 3 TOS a nd/or lay er 2 CoS t ag inform ation to determine how to classify traffic pac kets. Queuing Mec hanism Setting Description Factory Defaul t Weighted Fair EDS-510A ha s 4 pri or ity queues.
EDS-510A Series User’s Manual Featured Functions 3-36 CoS Mapping Setting Description Factory Low/Normal/ Medium /High Set the mappin g table of di fferent CoS values to 4 different egres s queues.
EDS-510A Series User’s Manual Featured Functions 3-37 Using Virtual LAN Setting up Virtual LAN s (VLANs) on your EDS-510 A increases the efficiency of you r network by dividing t he LAN into l ogical segment s, as opposed t o physical segm ents. In gene ral, VLANs are easier to manage.
EDS-510A Series User’s Manual Featured Functions 3-38 y VLANs provide extra secur ity: Devices within each VLAN can only c ommunicate with other devices on the sam e VLAN. If a device o n VLAN Marketing needs to communicate with devices on VLAN Financ e, the traffi c must pass thr ough a rout ing device or Laye r 3 switch.
EDS-510A Series User’s Manual Featured Functions 3-39 y Access Port: The port connects to a si ngle device that is not tagged. The user must define the default port PVID that determines to whic h VLAN the device belongs.
EDS-510A Series User’s Manual Featured Functions 3-40 y Port 6 connect a single untag ged device an d assigns it t o VLAN 5; i t should be con figured as “Access Port” with PVID 5. y Port 7 connect s a single unta gged devi ce and assigns it t o VLAN 4; it should be configured as “Access Port” with PVID 4.
EDS-510A Series User’s Manual Featured Functions 3-41 VLAN Mode Setting Description Factory Defaul t 802.1Q VL AN Set VLAN m ode to 802.1Q VL AN Port-based VLAN Set VLAN mode to Port-based VLAN 802.1Q VL AN Management VLAN ID Setting Description Factory Defaul t VLAN ID ranges from 1 to 4094 Set the management VLAN of this EDS-510A .
EDS-510A Series User’s Manual Featured Functions 3-42 To configure the ED S-510A’s Port-based VLAN , use the VLAN Setting p age to configure the ports. VLAN Mode Setting Description Factory Defaul t 802.1Q VL AN Set VLAN m ode to 802.1Q VL AN Port-based VLAN Set VLAN mode to Port-based VLAN 802.
EDS-510A Series User’s Manual Featured Functions 3-43 NOTE The physical network can have a maximum of 64 VLAN settings. Using Multicast Filtering Multicast filtering improves the performance of networks that carry multicast traffic.
EDS-510A Series User’s Manual Featured Functions 3-44 Network with out multicast filtering 12345678 Serial ports Console LAN 9 1 01 11 21 31 41 51 6 IGMP Group2 Group 1 Multicast Stream Group 2 Multicast Stream IGMP Group1 IGMP Group2 IGMP Group1 All hosts receive the multicast traffi c, eve n if they don’t need it.
EDS-510A Series User’s Manual Featured Functions 3-45 Query Mode Query mode allows the EDS-510A to work as the Querier if it has the lowest IP address on the subnetwork to wh ich it belongs.
EDS-510A Series User’s Manual Featured Functions 3-46 Configuring IGMP Snooping IGMP Snooping provides the ability to p rune multicast traffic so that it travels only to those end destinations that req uire that traffic, the reby reducing t he amount of t raffic on the Et hernet LAN.
EDS-510A Series User’s Manual Featured Functions 3-47 NOTE At least one swi tch must be de signated the Querier or e nable IGMP s nooping and GMRP when enabling Turbo Ring and IGMP snooping simultaneously. IGMP Table The EDS-510A displays the current activ e IGMP groups that were detected.
EDS-510A Series User’s Manual Featured Functions 3-48 Configuring GMRP GMRP is a M AC-based m ulticast manageme nt protocol , whereas IGMP i s IP-based. GMRP provides a m echanism that allows bri dges and end stations to register or un -register Gr oup membership i nformati on dynam ically.
EDS-510A Series User’s Manual Featured Functions 3-49 Traffic Rate Limiting Settings Ingress Setting Description Factory Defaul t Ingress rate Select the ingress rate for all packets from the follow.
EDS-510A Series User’s Manual Featured Functions 3-50 The EDS-510A acts as an auth enticator in the 802. 1X envi ronment. A s upplicant a nd an authenticator e xchange EAP OL (Extensibl e Authenti cation Protoc ol over L AN) frames wi th each other.
EDS-510A Series User’s Manual Featured Functions 3-51 5. The suppli cant responds t o the “EAP R equest/M D5-Challenge” by sending a n “EAP Response/MD5-Challenge ” frame th at encapsulates the user ’ s password using the MD5 hash algorithm.
EDS-510A Series User’s Manual Featured Functions 3-52 Database Option Setting Description Factory Defaul t Local (Max. 32 us er s) Select this option when setting th e Lo cal User Database as the authenticatio n database. Local Radius Select this option to set an external RADIUS server as the authentication d atabase.
EDS-510A Series User’s Manual Featured Functions 3-53 802.1X Re-Authentication The EDS-510 A can force co nnected device s to be re-aut horized ma nually. 802.1X Re -Authenticati on Setting Description Factory Defaul t Enable/Disable Select the optio n to enable 802.
EDS-510A Series User’s Manual Featured Functions 3-54 Description (Max. 30 characte r s) Description for Local User Database None NOTE The user name for the Local User Database is case-insensitive. Port Access Control Table The port status will indicate whether the access is authorized or unau thorized.
EDS-510A Series User’s Manual Featured Functions 3-55 Event Type Event Types c an be divi ded into t wo basic gro ups: System Events an d Port Events . System Events are related to the overall functio n of the switch, whereas Port Even ts are related to the activity of a specific port.
EDS-510A Series User’s Manual Featured Functions 3-56 that port (provided this item is Enab led). Traffic-Threshold (% ) Enter a non-zero number if the port’s Traffic-Overload item is Enabled.
EDS-510A Series User’s Manual Featured Functions 3-57 change Password click the Change passwor d check-box, ty pe the Old Password, type the New Pa ssword, retype the Ne w password, and then click Activate; Max.
EDS-510A Series User’s Manual Featured Functions 3-58 Event Types c an be divi ded into t wo basic gro ups: System Events an d Port Events . System Events are related to the overall functio n of the switch, whereas Port Even ts are related to the activity of a specific port.
EDS-510A Series User’s Manual Featured Functions 3-59 NOTE The Traffic-Overload , Traffic-Threshold (%) , and Traffic-Duration (se c) Port Event items are related. If you Enable the Traffic-Overload event, then be sure to enter a non -zero Traffic-Thresh old pe rcentage, as well as a Traffic- D urat i on bet wee n 1 and 300 seconds.
EDS-510A Series User’s Manual Featured Functions 3-60 effect, the EDS-510A acts as a DHCP server by assigning a connected de vice with a specific IP address stored in its internal me mory. Each time the conne cted device i s switched on or rebooted, the EDS-510A sends the device the desired IP address.
EDS-510A Series User’s Manual Featured Functions 3-61 Desired IP Address Setting Description Factory Defaul t IP Address Set the desired IP of connected devices. None Using Diagnosis The EDS-51 0A provides t wo im portant to ols for adm inistrators to diagnose network sy stems.
EDS-510A Series User’s Manual Featured Functions 3-62 Ping The Ping function uses the pi ng comm and to give use rs a sim ple but po werful to ol for troubleshooting network problems.
EDS-510A Series User’s Manual Featured Functions 3-63 Monitor by Port Access the Moni tor by Port f unction by sel ecting ALL 10/1 00 M or 1G P o rts or Port i , in which i = 1, 2, …, G 2 , from the left pull-down list.
EDS-510A Series User’s Manual Featured Functions 3-64 The table will display the follo wing information: MAC This field shows the MAC a ddress Type This field s hows the type of this MAC a ddress Po.
EDS-510A Series User’s Manual Featured Functions 3-65 Using Syslog This function provid es the even t logs for the syslog server. The function supports 3 configurable syslog servers and syslog server UDP port numbers. When an event occu rs, the event will be sen t as a syslog UDP packet to the specified sysl og servers.
EDS-510A Series User’s Manual Featured Functions 3-66 3. Select Yes to enter the EDS-510A’s web browse r interface and access the web browser interface secured via HTTPS/SSL.
4 4 Chapter 4 EDS Configurator GUI EDS Confi gurator is a com prehens ive Windows-based GUI that is used to configure and maintain multiple EDS-510A switches.
EDS-510A Series User’s Manual EDS Configurator GUI 4-2 Starting EDS Configurator To start EDS Configurator, locate an d then run the executable file edscfgui.exe . NOTE You may do wnload the EDS Config urator soft ware from Moxa’s we bsite at www .
EDS-510A Series User’s Manual EDS Configurator GUI 4-3 Once the search is complete, the Configurator window will display a list of all switches that were located. Search by IP address This utility is used to search for EDS-510A switches one at a time.
EDS-510A Series User’s Manual EDS Configurator GUI 4-4 Upgrade Firmware Keep your EDS-510A up to date with the latest firmware from Moxa. Perform the following steps to upgrade the firmware: 1. Downloa d the updat ed firmware ( *.rom ) file from the Moxa we bsite (ww w.
EDS-510A Series User’s Manual EDS Configurator GUI 4-5 Export Configuration The Export Co nf igurat ion utility is u sed to save the entire configuration of a particu lar EDS-510A to a text file. Take the follo wing steps to export a conf igu ration: 1.
EDS-510A Series User’s Manual EDS Configurator GUI 4-6 3. You ma y use a standard text editor, such as Notepad under Windows, to view and modify the newly created configuration file. Import Configuration The Import Conf iguratio n function is u sed to import an entire co nfiguration from a text file to the EDS-510A.
EDS-510A Series User’s Manual EDS Configurator GUI 4-7 3. The Setup Configuration wi ndow will be displayed, with a special note attached at th e bottom. Parameters that have been changed will be activated with a checkmark . You may make more cha nges if necessa ry, and then cli ck OK to accept the change s.
EDS-510A Series User’s Manual EDS Configurator GUI 4-8 y Fixed The EDS-510A is not p assword pr otected, and “Search by IP addres s” was used to locate it manually.
A A Appendix A MIB Groups The EDS-510A comes with built-in SNMP (S imple Network Management Protocol) agen t software that suppor ts co ld/warm start trap, line up/down trap, and RFC 1213 MIB-I I . The standard MIB group s that the ED S-510A series support ar e: MIB II.
EDS-510A Series User’s Manual MIB Groups A-2 MIB II.10 – T ransmission Group dot 3 dot 3StatsTable MIB II.11 – SNMP Gr ou p Snm pBasicGroup Snm pInputStats Snm pOutputStats MIB II.
EDS-510A Series User’s Manual MIB Groups A-3 The EDS-510 A also provi des a private M IB file, located in the file “M oxa-EDS510A -MIB.m y” on the EDS-510A Series utility CD-ROM. Public Traps: 1. Cold Start 2. Link Up 3. Link Down 4. Authentication Failure 5.
B B Appendix B Specifications Technology Standards IEEE802.3, 802. 3u, 802.3 x, 802.1D, 8 02.1w, 80 2.1Q, 802. 1p Protocols IGMP V1/V 2/V3 devi ce, GVRP, S NMP V1/ V2c/V3, DHC P Server/Client, BOOTP, .
EDS-510A Series User’s Manual Specifications B-2 Power Input Volt age 24 VDC(1 2 to 45 VDC ), redunda nt input s Input Current (@2 4V) 0.47A: (EDS-510A -3GT) 0.
C C Appendix C Service Information This appen dix shows y ou how to co ntact Moxa for info rmation abo ut this and other pro ducts, and how to repo rt problems.
EDS-510A Series User’s Manual Service Information C-2 Moxa Internet Services Customer satisfaction is our primary concern. To ensure that custo mers receive the full benefit of our products , Moxa I nternet Services ha s been set u p to provide t echnical support, driver updates , product inf ormation, a nd user’s m anual updat es.
EDS-510A Series User’s Manual Service Information C-3 Problem Report Form Moxa EDS-510A Series Customer name: Comp any: T el: Fax: Email: Date: Serial Number: ___________ ____ __ Problem Desc ription: Please describe the sym ptoms of the problem as clearly as possible, incl uding any error messages you see.
EDS-510A Series User’s Manual Service Information C-4 Product Return Procedure For product repair, exc hange, o r refund, the customer m ust: Provide e vidence of origi nal purchase. Obtain a Product Return Agreement (PRA) from the sales representative or dealer.
デバイスMoxa Technologies Moxa EtherDevice Switch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：
Moxa Technologies Moxa EtherDevice Switch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Moxa Technologies Moxa EtherDevice Switch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。Moxa Technologies Moxa EtherDevice Switch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。Moxa Technologies Moxa EtherDevice Switch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。
Moxa Technologies Moxa EtherDevice Switch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Moxa Technologies Moxa EtherDevice Switch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、Moxa Technologies Moxa EtherDevice Switch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Moxa Technologies Moxa EtherDevice Switch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。
