GatewayメーカーDPC3925の使用説明書/サービス説明書
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Cisco Model DPC3925 and EPC3925 8x4 DOCSIS 3.0 Wireless Residential Gateway with Embedded Digital Voice Adapter User Guide In This Document IMPORTANT S AFETY INSTR UCTIONS ............................................................... 2 Introducti on .
2 4021192 Rev A IM PORTANT SAFETY IN STRUCTIONS IMPORTANT S AFETY INSTRUCTIONS N o t i c e t o I ns t a l l er s The servicing instructions in this notice are for use by qualified service personnel only.
4021192 Rev A 3 IMPORTANT SAFETY IN STRUCTIONS M i t t e i l un g f ü r C A T V - T e c h n i k e r Die in dieser Mitteilung aufgeführten Wartungsanweisungen sind ausschließlich für qualifi ziertes Fachpersonal bestimmt.
4 4021192 Rev A IMPORTANT SAFET Y INSTRUCTIONS I M P O R T A N T S A F E T Y I N S T R U C T I O N S 1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near wate r. 6) Clean only with dry cloth.
4021192 Rev A 5 IMPORTANT SAFETY IN STRUCTIONS P r o t e ct t h e P r o d u c t f r o m L i g ht n i n g In addition to disconnecting the AC power from the wall outlet, disconnect the signal inputs.
6 4021192 Rev A IMPORTANT SAFET Y INSTRUCTIONS C h e c k P r od u c t S a f e t y Upon completion of any service or repairs to this product, the service technician must perf orm safety checks to determine that this product is in proper operating condition.
IMPORTANT SAFETY IN STRUCTIONS 4021192 Rev A 7 United States FCC Compliance This device has bee n tested and found to c omply with t he limits for a Class B digi tal device, pursuant to part 1 5 of the FCC Rules. These li mits are d esigned to provide re asonable protection against suc h interference in a residential installation.
IMPORTANT SAFETY IN STRUCTIONS 8 4021192 Rev A R a d i at i o n E xp o s u r e S t at em en t s Note: This transmit ter must not be co- located or opera ted in conjuncti on with any other antenna or transmitter. This equipment sh ould be installed and operated with a minimu m distance of 7.
IMPORTANT SAFETY IN STRUCTIONS 4021192 Rev A 9 CE Compliance D e c l ar a t i o n o f C o n f o r m i t y w i t h R e g a r d t o t h e E U D i r e ct i ve 1 9 9 9 / 5 / EC ( R & T TE Di r ec t i .
IMPORTANT SAFETY IN STRUCTIONS 10 4021192 Rev A Note: The full decla ration of conform ity for this produ ct can be found in the Decla rations of Conformity and Reg ulatory Information sec tion of the appr opriate product hardwa re installation guide, whic h is available on Cisco.
IMPORTANT SAFETY IN STRUCTIONS 4021192 Rev A 11 A n t e nn a s Use only the antenna supp lied with t he product. 20090312 CE_Ga teway.
12 4021192 Rev A Introduction Introduction Welcome to the exc iting world of high-speed Inte rnet and high-quality digital telephone service. Y our new Cisco ® Mode l DPC3925 DO CSIS ® 3.
4021192 Rev A 13 Introduction Color-coded interf ace ports and corr esponding ca bles simplify i nstallation and setup DOCSIS-5 compliant LE D labeling and behavior provides a user and technic.
14 4021192 Rev A What's In the Carto n? What's In the Carton? When you receive your wireless r esidential gate way, you should ch eck the equipment and acce ssories to verify that eac h item is in the carto n and that each item is undamaged.
4021192 Rev A 15 Front Panel Description Front Panel Descriptio n The front panel of you r resident ial gateway prov ides LED status i n dicator s that indicate how wel l and at what state yo ur reside ntial gateway is operat ing.
16 4021192 Rev A Back Panel Descript ion Back Panel Descri ption The following illustrations s how the descriptio n and functio n of the back p anel components on the C isco DPC3925 reside ntial gateway.
4021192 Rev A 17 Back Panel Descriptio n 8 WIRELESS SET UP — Pressing th is switch initiate s wireless setup, t his feature allows the user to add new Wi- Fi Protected Setu p (WPS) compl iant wireless clients to the home network 9 RESET — A momentary pressing (1-2 seconds) of this switch reboots t he EMTA.
18 4021192 Rev A What Are the System Req uiremen ts for Internet Service? What Are the S ystem Requirements for I nt ernet Service? To ensure that yo ur residential gate way operates efficie n tly for.
4021192 Rev A 19 How Do I Subscribe to Hig h-Speed Internet and Telephone Service? How Do I Subscri be to High-Speed Interne t and Telephone Service? Before you can use you r residential gate way, you need to have a hig h-speed Internet access account .
20 4021192 Rev A How Do I Subscribe to High-Speed Internet and Telephone Service? I A l r e a d y Ha v e an E x i s t i n g Hi g h - S pe e d I n t e r n e t A c c e s s A c c o u n t If you have an e.
4021192 Rev A 21 Where Is the Best Lo cation fo r My DOCSIS Residential Gatewa y? Where Is the B est Location for My DOCSIS Residential Gateway? The ideal location for your residential gateway is where it has access to o utlets and other devices.
22 4021192 Rev A How Do I Mount the Modem on a Wall? (Optio nal) How Do I Mount the Modem on a Wal l? (Optional) You can mount t he residentia l gateway on a wall using two wall a nchors, two screws, and the mou nting slots located o n the unit. T he modem can be mo unted vertically or horizo ntally.
4021192 Rev A 23 How Do I Mount the Modem o n a Wall? (Optional) L o c a t i o n a n d D i m e n s i on s o f t h e W a l l - M o u nt i ng S l o t s The following illustration s hows the locatio n and dimensions o f the wall-mounting slots on the bottom o f the modem .
24 4021192 Rev A How Do I Mount the Modem on a Wall? (Optio nal) M o un t i n g t h e R e s i d e n t i a l G a t e wa y o n a W a l l 1 Using a drill with a 3/16-inch bit, dri ll two holes at the s ame height and 4 inch es apart.
4021192 Rev A 25 What Are the Requiremen ts for Teleph one Service? What Are the R equ irements for Telephone Service? N u m b er of T e l e ph o n e De vi c e s The RJ-11 telephon e-style connectors o n the residential gateway ca n each provide telephone service to m ultiple telepho n es, fax mac hines, and analog mode ms.
26 4021192 Rev A How Do I Connect My Gateway for Int ernet and Telepho ne Service? How Do I Connec t My Gateway for Interne t and Telephone Service? You can use your residential gate way to provide bo.
4021192 Rev A 27 How Do I Connect M y Gateway for Int ernet and Telephon e Service? WARNING: To avoid personal in jury, follow the inst allation instructions in the exa ct order shown. To prevent possible damage to equ ipment, disconnect a ny other telephone service before conne cting your cable mode m to the same wires.
28 4021192 Rev A How Do I Connect My Gateway for Int ernet and Telepho ne Service? 5 Connect one end o f a telep hone jumper cable ( not included) to a telephone outlet in your home or to a telephone or fax machine. T hen connect the o ther end of the jumper cable to the appropriate RJ-11 TEL EPHONE por t on the back of t h e residential gateway.
4021192 Rev A 29 How Do I Configu re My DOCSIS Residential Gat eway? How Do I Configure My D OC SIS Res idential Gateway? To configure yo ur residential gate way, you must first access the WebWi zard configuration pages.
30 4021192 Rev A How Do I Configu re My DOCSIS Residential Gat eway? 2 In the address field, enter the fo llowing IP addres s: 192.168.0.1 . A Status DOCS IS WAN login page similar to the following page op en s. 3 On the Status DOCSIS WAN page, lea ve the User Name and Passwor d field blank and click Log In .
4021192 Rev A 31 How Do I Configu re My DOCSIS Residential Gat eway? 4 On the Administratio n Management page, creat e a U ser Name and Password and then click Save Se tti ngs . Once you save t h e settings for you r User Name and Password on the A dministration Management pa ge, the Setup Quick Setup page opens.
32 4021192 Rev A How Do I Configu re My DOCSIS Residential Gat eway? Configuring Quick Setti ngs Use the description s and instru ctions in the following table to co n figure the network settings for the devi ce. After you make your selec tion s, click Save Sett ings to apply your changes or cli ck Cancel Changes to cancel.
4021192 Rev A 33 How Do I Configu re My DOCSIS Residential Gat eway? Section Field Descript ion WLAN Wireless Net work Allows you to enable or disable the wireles s network . S elect the desired option: Enable Disable Wireless Net work Name (SSID) Allows you to enter a name for your wireless ne twork or to use t he default value.
34 4021192 Rev A How Do I Configu re My DOCSIS Residential Gat eway? S e t u p > L a n S e t u p The Setup Lan Setup p age allows you to configur e the settings for t he Local Area Network (LAN) i n your home.
4021192 Rev A 35 How Do I Configu re My DOCSIS Residential Gat eway? Section Field Descript ion Network Address Server Settings (DHCP) DHCP Server Allows you to enable or disable the DHCP server in th e residential gateway. The DHCP server is u sed to automatically allocate IP addresses to dev ices as they are attached to your h ome network.
36 4021192 Rev A How Do I Configu re My DOCSIS Residential Gat eway? Section Field Descript ion Maximum Num ber of DHCP Use rs Enter the maximum nu mber of users to w hich the DH CP server can assign IP address es for use in the LAN. This number cannot be greater than 25 4 minus the startin g IP address descr ibed above.
4021192 Rev A 37 How Do I Configu re My DOCSIS Residential Gat eway? Section Field Descript ion DDNS Service Disabling DDNS (Factory Defa ult Settings) To disable DDNS, select Disa bled from the drop- down list and cl ick Save Settings .
38 4021192 Rev A Configure Wireless Settin gs Configure Wirel ess Settings This section descri bes the options available from the Wireless page s that you can use to configure the para meters of the WAP to meet y our specific requireme nts and needs.
4021192 Rev A 39 Co nfigure Wireless Settin gs Wireless Configuration Wi-F i Protected Setup Example Wireless Configuration Wi-F i Protected Setup Page Desc ription Use the description s and instru ctions in the following table to co n figure the basic settings for Wi-Fi Prote cted Setup for the resid ential gateway.
40 4021192 Rev A Configure Wireless Settin gs Section Field Descript ion WPS Setup U sing Your Wi -Fi Adapter PIN (Option 2 ) This is the most secure option to register a wirele ss client with the gateway. You need the W i-Fi Protected Setup PIN nu mber, which is found in the client Wi -Fi Pr otected Setup utility.
4021192 Rev A 41 Configure Wireless Setting s Section Field Descript ion Basic Setti ngs Wireless Network Enable or Disable the wireless net work Wireless Configurat ion The default is WPS . See Wi-Fi Pr otected Setup (W PS) (on page 3 8 ) for more information about u sing WPS.
42 4021192 Rev A Configure Wireless Settin gs Section Field Descript ion Wireless Network Name ( SSID) The SSID is the name of your wireless network. The S SID is used by wireles s technology to identif y your network from other wirele ss net works in the are a.
4021192 Rev A 43 Configure Wireless Setting s Wireless Security Pag e Description Use the description s and instruct ion s in the followi ng table to configure t h e wireless security for the reside ntial gateway. After you m ake your selections, c lick Save Settings to apply yo ur changes or Cance l Changes to ca ncel.
44 4021192 Rev A Configure Wireless Settin gs Section Field Descript ion WPA Security for Personal Ne tworks – WPA or WPA 2 Personal Modes Wi-Fi Protected Acc ess (W PA) is a more secure wireless technol ogy than WE P . WPA ca n be used for both Enterprise (corp orate applications) and Perso nal (home network) w ireless networks.
4021192 Rev A 45 Configure Wireless Settin gs Section Field Descript ion Security for Enterprise Networks - WPA- Enterprise Modes This option features WPA used in coordinat ion with a RADIUS server for client a uthentication. (This should only be used when a RADIUS server is c on nected to the device.
46 4021192 Rev A Configure Wireless Settin gs W i r e l es s > M A C F i l t e r The MAC Filter feature is used to eit h er allow or block access to your w ireless LAN based on the MAC A ddress of t he wireless client devices.
4021192 Rev A 47 Configure Wireless Setting s Section Field Descript ion Access Restriction Access Rest riction Allows you to permit or block computers fro m accessing the wireless network. The choice t hat you make here affects the addre sses listed on this page.
48 4021192 Rev A Configure Wireless Settin gs Wireless Advanced S ettings Page Description Use the description s and instru ctions in the followi ng table to configure t h e advanced wireless se ttings for your residential ga teway. After you make your selections, click Save Se ttings to apply your chan ges or Cancel Change s to cancel.
4021192 Rev A 49 Configure Wireless Setting s Section Field Descript ion Advanced Wireless N Transmission Rate The rate of data transmission should be set depend ing on the spee d of your Wireless-N netw orking.
50 4021192 Rev A Configure Wireless Settin gs Section Field Descript ion DTIM Interval The Delivery Traf fic Indication Message ( DTIM) indicates the interval between Broadcasts/Multicast tra nsmissions. DTIM field i s a countdown field i nforming clients of the next wi ndow for listening to broa dcast and mul ticast messages.
4021192 Rev A 51 Configure Wireless Settin gs W i r e l es s > W D S S e t t i n gs The Wireless Distr ibution System (WDS) Settings page allows you to expand th e coverage of your w ireless network by d eploying signa l repeaters. Make s ure the channel settings are the same for all WDS enabl ed devices.
52 4021192 Rev A Configure Wireless Settin gs W i r e l es s > Q o S Quality of Service (QoS ) ensures better service to h igh-priority types of network traffic, which m ay involve demandi ng, real-time applicatio ns, such as vide o conferencing. QoS s ettings allow you to specify p riorities for differ ent types of traffic.
4021192 Rev A 53 Configure Wireless Setting s Section Field Descript ion No ACK Allows you to enable or disable NO ACK. Thi s feature is recommended for data services where transmissi on is important and packet lo ss is tolerable to a certa in degree.
54 4021192 Rev A Configure Security Configure Security S e c u r i t y > Fi r ew al l Advanced firew all technology deters ha ckers and protects the home network fro m unauthorized acces s. Use this page to configure a firewall that can filter out var ious types of unwa nted traffic on the gate way’s local network.
4021192 Rev A 55 Configure Security Section Field Descript ion Filters Filter Proxy Enables/disables filter pro xy. If local users have a ccess to WAN prox y servers, they may be able to circu mvent the content filters a nd access Internet sites blocked by the device.
56 4021192 Rev A Configure Security S e c u r i t y > VP N P a s st h r ou gh Use this page to co n figure Virtu al Private Networ k (VPN) support. Enabli ng the settings on this page al lows VPN tunnels usi ng IPsec or P PTP protocols to pass through the gate way's firewall.
4021192 Rev A 57 Configure Security S e c u r i t y > VP N A Virtual Private Net work (VPN) is a connectio n between two endpo in ts in di fferent networks that allo ws private data to be sent secur ely over public networks or other private networks.
58 4021192 Rev A Configure Security Security VPN Tunn el Page Description Use the description s and instru ctions in the following table to co n figure the VPN tunnel for your gateway. After you make your selections, click Save Set tings to apply your cha nges or Cancel Change s to cancel.
4021192 Rev A 59 Configure Security Section Field Descript ion Remote Secure Gateway Select the desired opti on, IP A ddr. , Any , or FQDN . If the remote gateway has a dynamic IP addre ss, select An y or FQDN . If Any is selected , then the Gateway wi ll accept requests fro m any IP addre ss.
60 4021192 Rev A Configure Security Section Field Descript ion Key Management (continued) Select one of the followi ng options for the key e xchange method: Auto (IKE) – Encryption: The E ncryption method determi nes the le ngth of the key used to encrypt/decrypt ES P packets.
4021192 Rev A 61 Configure Security Section Field Descript ion Status This field shows the con nection status for t he selected t unnel. The state is eit her Connected or Disconnect ed . Buttons Connect Click this button to establ ish a connectio n for the current VPN t unnel.
62 4021192 Rev A Configure Se curity View Log The Security VPN Vie w Log page shows events cap tured by the firew all. The log displays the follo wing items: Description of the ev en t Number .
4021192 Rev A 63 Control Access to the Gateway Control Access to the Gateway A c c e s s Re s t r i c t i o ns > I P A d dr e s s F i l t er i ng Use the Access R estrictions I P Filtering page to configure IP add ress filters. These filters block a range o f IP addresses from access ing the Internet.
64 4021192 Rev A Control Access to the Gateway Select the MAC Add res s Filtering tab to ope n the Acce ss Restrictions M AC Address Filtering page. The Block/Pass dr op down me nu allows you to block or pass Inter n et access to the MAC addresses of t h e devices you l ist in the MA C Address Filters table.
4021192 Rev A 65 Control Access to the Gateway A c c e s s Re s t r i c t i o ns > B as i c R u l e s Access restrictions allow you to block or allow spe cific kinds of Inter net usage and traffic, such as I nternet access, des ignated applications, websites, a n d inbou nd traffic during specific day s and times.
66 4021192 Rev A Control Access to the Gateway Use the description s and instru ctions in the foll owing tabl e to configure t he access restrictions basic r ules for your residential gatew ay. After you make your selectio ns, click Save Setting s to apply your changes or Cancel Chan ges to cancel.
4021192 Rev A 67 Control Access to the Gateway Section Field Descript ion Override the Pa ssword Password Allows you to create a password to tempora ril y override user access restrictions to a blocke.
68 4021192 Rev A Control Access to the Gateway Use the Keyword Li st to enter the keywords y ou wis h to block. If any of t h ese keywords appears i n the URL of a web site, access to the site will be blo cked. Note that only the URL is check, not the conte n t of each webpage.
4021192 Rev A 69 Control Access to the Gateway Section Field Descript ion Tod Filter Add Allows you to add a new Time of Day access filter or r ule. Enter the name of the filter and click the Add key to add the filter to the list. Time of Day rules are used to restrict Internet access based on the day a nd time.
70 4021192 Rev A Control Access to the Gateway Access Restrictions Us er Setup Page D escription Use the description s and instru ctions in the following table to co n figure the use r setup for your residential gateway . After you ma ke your selections, click Save Settings to apply your changes or Cancel Changes to cancel.
4021192 Rev A 71 Control Access to the Gateway Section Field Descript ion Inactivity Time 60 minutes [F actory d efault when a user is created. Otherwise, it is 0 ( zero)] . Enter the amount of time d uring a user session w here there is no Inter net access activity, indicating that the user is no longer o nline.
72 4021192 Rev A Configure App lications and Gaming Configure Applications a nd Gaming O v er vi e w Most well-known I nternet applicat ions are supported by Application Laye r Gateways (ALGs). ALGs automatical ly adjust the gateway firewall to allow data to pass without maki ng any custom settings.
4021192 Rev A 73 Configure Applicat ions and Gaming Section Field Descript ion Port Filtering Start Port: This is the beginnin g of the port ra nge. Enter the beginn ing of the range of port numbers (ex ternal ports) used by t he ser ver or Internet application.
74 4021192 Rev A Configure App lications and Gaming Applications and Gamin g Port Range Forward Page Des cription Use the description s and instru ctions in the following table to co n figure the port range forwarding for the r esidential gateway. Se lect enable for each.
4021192 Rev A 75 Configure Applicat ions and Gaming A p p l i ca t i o n s & G a m i n g > Po r t R an g e T r i g g e r i n g Port range trigger ing is a way to dy namically for ward ports to a L AN PC that needs them at a particular t ime.
76 4021192 Rev A Configure App lications and Gaming Section Field Descrip tion End Port For the End port, select a port from the re commended 49152 - 65535 range. Kee p in mind that ports used a re p rogram specific so check which ones t he program requires t o be forward ed.
4021192 Rev A 77 Configure Applicat ions and Gaming Applications and Gamin g DMZ Page Description Use the description s and instru ctions in the following table to co n figure the port range triggering for t h e residential ga teway. Select enable for each D MZ Host IP address.
78 4021192 Rev A Manage th e Gateway Manage the Gateway A d m i n i s t r a t i o n > Ma n a g e m e n t The Administratio n Management page all ows the network’s adm inis trator to manage specific gat eway functions for access and security. Select the Mana gement tab to open the Adm inistration M an agement pag e.
4021192 Rev A 79 Manage the G ateway Field Description Gateway Set up (WAN) Internet Conne ction Type Connection Mode This setting all ows you to determi ne how the WAN (or gateway i nterface to the Inter net) obtains its I P address.
80 4021192 Rev A Manage th e Gateway Field Description MTU Gateway Acce ss Local Access Internet IP Addre ss Enter the gateway’s IP a ddress (as seen from t he Internet) Subnet Mask Enter the gatewa.
4021192 Rev A 81 Manage the G ateway Field Description Remote Acce ss Remote Mana gement Allows you to enable t o disable remote manage ment. This fea ture allows you to access a nd manage your gateway settings f rom the Internet when you are away from home.
82 4021192 Rev A Manage th e Gateway A d m i n i s t r a t i o n > Re p o r t i n g Administration repor ting allows yo u to em ail variou s system activities to your email address. Select the Repor ting tab to open t he Administration Re porting page.
4021192 Rev A 83 Manage the G ateway V i e w L o g To view the logs, com plete the follo wing steps. 1 Click View Log . A new window ope ns with the log data page.
84 4021192 Rev A Manage th e Gateway A d m i n i s t r a t i o n > Di a g n os t i c s Administration d iagnostics allow you to check th e status of your Inter net connection by using a Ping te st. Select the Diagnos tics tab to open the Administration Di agnostics page.
4021192 Rev A 85 Manage the G ateway A d m i n i s t r a t i o n > Ba c k u p & R e s t o r e Administration B ackup & Restor e allows you to back up you configur ation of the Gateway and store it on your com puter. You can use this file to restore a p reviously saved configuratio n for your Gateway.
86 4021192 Rev A Manage th e Gateway A d m i n i s t r a t i o n > Fa c t or y D ef a u l t s The Administratio n Factor y Defaults page allo ws you to resto re the configu ration to its factory default settings. Select the Fa ctory Defa ults tab to open the Administration F actory Defaults page.
4021192 Rev A 87 Monitor Gatew ay Status Monitor Gatew ay Status This section descri bes the options available u nder the Status ta b that you can use to monitor the status o f the r esidential gateway and to perform diagn ostics o n the device and the n etwork.
88 4021192 Rev A Monitor Gatewa y Status Section Field Descript ion Internet Conne ction IP Address Displays the IP address of the WAN inter face. This ad dress is assigned to the gatewa y when it goes onli ne. Subnet Mask Displays the subnet mask for your WA N port.
4021192 Rev A 89 Monitor Gateway Stat us Section Field Desc ription A MAC ad dress is a hardware addre ss that uniquely identifies each node of a network.
90 4021192 Rev A Monitor Gatewa y Status ARP/RARP Tabl e Click ARP/RARP Tab le to see a complet e list of all d evices that a re connected to your net work. To retr ieve the most up- to -date information, click Re fresh . To e xit this page and re turn to the Local Network page, click Close .
4021192 Rev A 91 Monitor Gateway Stat us Status Wireless Pag e Description Use the following table to r eview the status of yo ur wireless network. Section Field Descript ion Wireless Network MAC Addr.
92 4021192 Rev A Monitor Gatewa y Status S t at u s > D OC S I S W AN DOCSIS WAN Statu s displays i n formation abou t the system of your cable modem. Select the DOCSIS WAN tab to open t he Status DOCS IS WAN page. DOCSIS WAN Page Description Use the description s in the follow ing table to revi ew the status of your DOCS IS WAN network.
4021192 Rev A 93 Monitor Gateway Stat us Section Field Descript ion MAC Addres s (CM MAC Addre ss) Displays the CM MAC Address. The CM MAC Address is a unique alphanumeric add ress for the cable mode m coaxial interfa ce, which is used to connect to the CMTS at the headend.
94 4021192 Rev A Frequently Asked Question s Frequently Ask ed Questions Q . Ho w D o I Co nf i gu r e T C P / I P P r o t o co l ? A. To configure TC P/IP protocol, you need to have an Ether net Network Interfa ce Card (NIC) wit h TCP/IP communic ations protoc ol installed on your syste m.
4021192 Rev A 95 Frequently Asked Questions 5 Select both Obtain an IP address autom atically and Obtain DNS server address automatically in t he Internet Protoco l ( TCP/IP) Properties window, an d then click OK . 6 Click Yes to restart you r computer whe n the Local Network w in dow opens.
96 4021192 Rev A Frequently Asked Question s Renewing the IP Addres s on Windows 95, 98, 98SE, and ME Systems 1 Click Start , and the n click Run to open t h e Run window. 2 Type winipcfg in t he Open field, a nd click OK to ex ecute the winipcfg command.
4021192 Rev A 97 Frequently As ked Question s Q. How does the resid ential gateway connect to my computer? A. The reside ntial gateway connects to the PC using a wireless connection or the 10/100/1000BASE-T Et hernet port on your PC.
98 4021192 Rev A Tips for Imp roved Performance Tips for Improved Per f ormance C h e c k a n d C o r r ec t If your residential ga teway does not perform as e xpected, the following tips may help. If you need further assista nce, contact your s ervice provider.
4021192 Rev A 99 Front Panel LED Status Indicato r Functions Front Panel LED Status In dicator Functions I n i t i a l P o w e r U p, Ca l i b r a t i o n , a nd R e g i s t r a t i o n ( AC P o we r .
100 4021192 Rev A Front Panel LED Status I ndicator Fun ctions Front Panel LED Status In dicators During Init ial Pow er Up , Calibration, and Regist ration Part 2, Telephone Regi stration Step 7 8 9 .
4021192 Rev A 101 Front Panel LED Status Indicato r Functions N o r m a l O pe r a t i o n s ( A C P o w e r ap p l i e d) The following chart illustrates the appearance of t he residential gate way front panel LED status indicators du ring normal operations when AC power i s applied to the gateway.
102 4021192 Rev A Front Panel LED Status I ndicator Fun ctions S p e c i a l C o n d i t i o n s The following chart describes th e appearance of the cable modem f ront panel LED status indicators du ring special conditions to s how when you have been d enied network access.
4021192 Rev A 103 Notices Notices T r a d e m a r k s Cisco, Cisco Systems, t h e Cisco logo, a nd the Cisc o Systems logo are register ed trademarks or tr ademarks of Cisco System s, Inc. a nd/or its affiliates in the U.S. and certain other cou ntries.
104 4021192 Rev A For Information For Informati on I f Y o u H a v e Q u e st i on s If you have tec hnical questions, call Cisco Services f or assistance. Follo w the menu options to speak wi th a service e n gineer. Use the f ollowing table to find the center in your area.
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Cisco Systems, Inc. 5030 Sugarloaf Parkway, Box 46 5447 Lawrenceville, GA 30042 678.277.1000 www.cisco.com This document includes various t rademar ks of Cisco Systems , Inc. Please see the Notices section of this document for a list of the Cisco System s, Inc.
デバイスGateway DPC3925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：
Gateway DPC3925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Gateway DPC3925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。Gateway DPC3925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。Gateway DPC3925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。
Gateway DPC3925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Gateway DPC3925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、Gateway DPC3925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Gateway DPC3925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。
