SMC Networks SMC7901BRA5 User Manual Download

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HAPTER

| Device Information

Port Mapping

– 40 –

ORT

APPING

The Port Mapping status shows the mapping of WAN and LAN interfaces to

specific groups.

Figure 13: Status - Port Mapping

The following items are displayed on this page:

◆

Status

— Indicates if port mapping is enabled or disabled.

◆

Select

— Indicates the group identification.

◆

Interfaces

— Specifies the WAN and LAN interfaces in the group.

◆

Status

— Indicates if the group mapping is enabled.

Summary of Contents for SMC7901BRA5

Page 1: ...USER GUIDE ADSL2 BARRICADE 1 Port ADSL ADSL2 Router SMC7901BRA5...

Page 2: ...No 1 Creation Road III Hsinchu Science Park 30077 Taiwan R O C TEL 886 3 5770270 Fax 886 3 5780764 1 Port ADSL ADSL2 Router User Guide September 2011 Pub 149xxxxxxxxx SMC UG 0911 01...

Page 3: ...otherwise under any patent or patent rights of SMC SMC reserves the right to change specifications at any time without notice Copyright 2011 by SMC Networks Inc No 1 Creation Road III Hsinchu Science...

Page 4: ...4 WARRANTY AND PRODUCT REGISTRATION To register SMC products and to review the detailed warranty statement please refer to the Support Section of the SMC Website at http www smc com...

Page 5: ...etween the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for...

Page 6: ...NUMBERS STATEMENT Notice The Ringer Equivalence Number REN assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface T...

Page 7: ...the Amendment Directive 93 68 EEC For the evaluation of the compliance with these Directives the following standards were applied RFI Emission Limit according to EN 55022 2007 Class A B Limit for har...

Page 8: ...f all reusable waste content Design of products to maximize recyclables at the end of the product s life span Continual monitoring of safety standards END OF PRODUCT LIFE SPAN This product is manufact...

Page 9: ...amiliar with Windows operating system concepts CONVENTIONS The following conventions are used throughout this guide to show information NOTE Emphasizes important information or calls your attention to...

Page 10: ...9 Features and Benefits 19 Description of Hardware 20 Power Connector 22 Power Button 22 Reset Button 22 2 INSTALLING THE ROUTER 23 Package Contents 23 System Requirements 23 Cable Connections 24 Powe...

Page 11: ...DSL Statistics 42 ARP Table 43 5 LAN SETTINGS 45 LAN Interface 46 DHCP Settings 47 DHCP Disabled 47 DHCP Relay 48 DHCP Server 49 DHCP Static IP 51 6 WAN SETTINGS 52 Channel Configuration 53 ATM Settin...

Page 12: ...ARP Binding Configuration 85 8 ADVANCED 86 Bridge Setting 87 Log Setting 88 Routing Configuration 89 UPnP 91 SNMP Protocol Configuration 92 System Time Configuration 93 Other Advanced Configuration 94...

Page 13: ...roblems Accessing the Management Interface 113 B HARDWARE SPECIFICATIONS 114 Physical Characteristics 114 Software Features 115 Standards 116 Compliances 117 C CABLES AND PINOUTS 118 Twisted Pair Cabl...

Page 14: ...Status Port Mapping 40 Figure 14 Status Traffic Statistics 41 Figure 15 Status DSL Statistics 42 Figure 16 Status ARP Table 43 Figure 17 LAN Configuration 46 Figure 18 DHCP Disabled 47 Figure 19 DHCP...

Page 15: ...Figure 46 ARP Binding Configuration 85 Figure 47 Bridge Setting 87 Figure 48 Log Setting 88 Figure 49 Routing Configuration 89 Figure 50 UPnP 91 Figure 51 SNMP Configuration 92 Figure 52 System Time C...

Page 16: ...FIGURES 12 Figure 68 Straight through Wiring 119 Figure 69 Crossover Wiring 120 Figure 70 RJ 11 Wiring 121...

Page 17: ...D Display Indicators 21 Table 2 Configuration Menu 30 Table 3 LED Troubleshooting Chart 112 Table 4 Web Access Troubleshooting Chart 113 Table 5 10 100BASE TX MDI and MDI X Port Pinouts 119 Table 6 RJ...

Page 18: ...TTING STARTED This section provides an overview of the ADSL Gateway Router and describes how to install and mount the unit This section includes these chapters Introduction on page 19 Installing the R...

Page 19: ...Bridge modes ITU G 992 3 ADSL2 and ITU G 992 5 ADSL2 ITU G 992 1 G dmt Annex A and ITU G 992 2 G lite ANSI T1 413 Issue 2 Provides 24 Mbps downstream and 1 Mbps upstream Maximum transmission range 5...

Page 20: ...ervice provider s incoming line One RJ 45 port for connection to a PC or to a 10 100BASE TX Ethernet Local Area Network switch This port operates at 10 100 Mbps half full duplex It supports automatic...

Page 21: ...is being supplied with power Off The router is not receiving power Link On Green The DSL Line port has a link with the service provider Blinking Green The DSL line is training Data Blinking Green Dat...

Page 22: ...upplies 12 volts DC power to the unit No voltage range settings are required POWER BUTTON The ADSL Gateway Router has a power button When the AC power adapter is attached and connected to a power sour...

Page 23: ...allation Guide Documentation CD SMC warranty information card Please inform your dealer if there are any incorrect missing or damaged parts If possible retain the carton including the original packing...

Page 24: ...ephone line from the service provider and to a computer or LAN switch Figure 3 Connecting the Router To install the router follow these steps 1 Using standard telephone cable connect the Line port on...

Page 25: ...wer adapter cord into the DC 12V power socket on the router and then plug the power adapter directly into a power outlet Check the LED marked Power on the top of the unit to be sure it is on If the Po...

Page 26: ...nel Network Connections 2 Right click the Local Area Connection icon for the adapter you want to configure 3 Highlight Internet Protocol TCP IP 4 Click on Properties 5 Select the option Obtain an IP a...

Page 27: ...DHCP Server is already selected in the Configure field your computer is already configured for DHCP Otherwise select Using DHCP Server in the Configure field and close the window 4 Another box will ap...

Page 28: ...the web management interface and provides details on configuring the Gateway This section includes these chapters System Configuration on page 29 Device Information on page 37 Advanced Setup on page...

Page 29: ...one of the router s LAN ports Set your PC with a static address within the same subnet as that used by the router that is 192 168 2 x with the subnet mask 255 255 255 0 To access the configuration men...

Page 30: ...ed in the table below For details on configuring each feature refer to the corresponding page number Table 2 Configuration Menu Menu Description Page Wizard Starts the setup wizard 33 Status System Sh...

Page 31: ...AT ALG and Pass Through Configures NAT passthrough for specific application protocols 71 NAT Port Trigger Restricts Internet access for specific ports 72 FTP ALG Configuration Configures FTP server an...

Page 32: ...ng echo requests to other devices 98 Traceroute Checks routes to other deives 99 ADSL Runs ADSL diagnostic tone tests 101 Admin Commit Reboot Reboots the unit and or restores factory defaults 104 Back...

Page 33: ...to get started STEP 1 GETTING STARTED After reading the wizard welcome message click Next to continue Figure 6 Wizard Step 1 Getting Started STEP 2 TIME ZONE Configure a Network Time Protocol NTP serv...

Page 34: ...or city or commonly known zone name covered by the time zone STEP 3 ADSL SETTINGS The third page of the wizard configures the ADSL country settings Internet service provider protocol connection type a...

Page 35: ...re allows you to send bridged RFC 1483 encapsulated packets over ATM switched virtual circuits SVCs 1483 Routed Allows you to send routed RFC 1483 encapsulated packets over ATM switched virtual circui...

Page 36: ...nfiguration Setup Wizard 36 STEP 4 CONFIGURATION SAVING The final step in the setup wizard saves the configuration changes Click Finish to complete the wizard then click Save Figure 9 Wizard Step 3 Co...

Page 37: ...connection status and speed Click Status System Figure 10 System Status The following items are displayed on this page SYSTEM Alias Name An alias for the ADSL Router enabling the device to be uniquely...

Page 38: ...Status LAN The following items are displayed on this page LAN STATUS Displays the basic information of the LAN port IP Address Displays an IP address for local area connection to the ADSL Router Subn...

Page 39: ...nterface identifier VPI VCI Displays the ATM channel identifiers Encapsulation Displays the encapsulation type chosen either LLC to VX Mux Default Route Dipslays if a default route has been enabled Pr...

Page 40: ...interfaces to specific groups Figure 13 Status Port Mapping The following items are displayed on this page Status Indicates if port mapping is enabled or disabled Select Indicates the group identifica...

Page 41: ...total number of packets received by the specified interface Rx Error Displays the total number of packet errors received by the specified interface if any Rx Drop Displays the total number of received...

Page 42: ...ction status activating up or null ADSL Mode Displays the connection mode for the ADSL Router which is fixed at ADSL2 Upstream Displays the actual payload carried on the upstream channels Downstream D...

Page 43: ...oise Up Down Output Power Displays the upstream downstream power level employed for ADSL port filtering ES Displays the total error seconds the number of second intervals during which there was one or...

Page 44: ...RP Table 44 The following items are displayed on this page IP Address IP address of a local entry in the cache MAC Address MAC address mapped to the corresponding IP address Refresh Sends a request to...

Page 45: ...s LAN configuration on the ADSL Router You can use the web browser interface to access IP addressing only if the ADSL Router already has an IP address that is reachable through your network LAN Interf...

Page 46: ...2 168 2 1 Figure 17 LAN Configuration The following items are displayed on this page Interface Name Displays the name assigned to the interface IP Address Specifies an IP address for management of the...

Page 47: ...s not configured in the table For devices that need Internet access through the LAN port enter the MAC address and click Add DHCP SETTINGS The ADSL Router includes a Dynamic Host Configuration Protoco...

Page 48: ...wever when the access point s DHCP relay agent is enabled received client requests can be forwarded directly by the access point to a known DHCP server on another subnet Responses from the DHCP server...

Page 49: ...ayed on this page LAN IP Address Displays the LAN IP address for management of the ADSL Router Default 192 168 2 1 Subnet Mask Displays the local subnet mask Default 255 255 255 0 DHCP Mode When set t...

Page 50: ...n infinite lease time Domain Name Specifies the unique name used to identify the ADSL Router on the network DNS Servers Sets up to three domain name server IP addresses Set VendorClass IP Range Click...

Page 51: ...e IP address from the DHCP address pool to assign to the specified MAC address MAC Address Enter the MAC address to be assigned to a static IP address from the DHCP address pool Add Selecting this opt...

Page 52: ...ter The WAN pages are used to configure standard WAN services including VPI VCI encapsulation service type PPPoE IPoE bridging ATM settings and ADSL settings It includes the following sections Channel...

Page 53: ...tifier A grouping of virtual channels which connect the same end points and which share a traffic allocation VCI Virtual Channel Identifier A specific virtual channel connecting two end points Encapsu...

Page 54: ...ridged RFC 1483 encapsulated packets over ATM switched virtual circuits SVCs 1483 MER 1483 MER is an RFC standard MAC Encapsulated Routing protocol PPPoE Point to Point Protocol over Ethernet PPPoE PP...

Page 55: ...TTINGS The ATM Settings page is used to configure the settings between your ADSL Router and the remote ATM PVC switch including connection mode single or multiple service over one connection and packe...

Page 56: ...a PVC at a real time variable bit rate This option may be used for applications that have a lot of variance in required bandwidth such as voice PCR Peak Cell Rate Configures the maximum allowable rate...

Page 57: ...Each sub carrier is modulated with a conventional modulation scheme such as G lite ADSL2 etc or more commonly ADSL2 G lite A standard that defines the more economical splitterless ADSL connection that...

Page 58: ...cation in ITU T recomendations G 992 3 ADSL2 and G 992 5 ADSL2 also referred to as ADSL2 M and ADSL2 M This specification extends the capability of commonly deployed Annex A by more than doubling the...

Page 59: ...e following sections are contained in this chapter DNS Settings on page 60 Access Control Lists on page 63 IP Port Filtering on page 66 NAT NAPT Settings on page 68 Quality of Service on page 74 MAC F...

Page 60: ...recognizable web address to a numerical IP address DNS can be set automatically or manually Figure 26 DNS Server Configuration The following items are displayed on this page Obtain DNS Automatically T...

Page 61: ...sites of these service providers at www dyndns org or www tzo com Figure 27 DDNS DynDns The following items are displayed on these pages DDNS provider Specify the DDNS provider from the drop down menu...

Page 62: ...NS TABLE This table displays the configured servers in the DDNS setup Select Highlights an entry in the Dynamic DDNS Table State Displays the state of the server entry enabled or disabled Service Disp...

Page 63: ...s Figure 28 LAN ACL Configuration The following items are displayed on this page LAN ACL Switch Enables LAN ACLs on the ADSL Router Default Disabled NOTE Do not enable ACLs without first configuring y...

Page 64: ...service Action Click the button to remove the entry from the table WAN ACLS When you select WAN for the ACL direction you can configure ACLs that apply to WAN interfaces Figure 29 WAN ACL Configurati...

Page 65: ...N ports Select The number of the entry in the table Direction Displays if the ACL is applied to a LAN or WAN interface IP Address Interface Displays the allowed IP address or range Service Dispays the...

Page 66: ...ction Sets the default filtering action for outgoing packets that do not match a rule in the filter table Default Permit maximum 32 entries are allowed Incoming Default Action Sets the default filteri...

Page 67: ...cket filter that denies forwarding in to the local area network to the list CURRENT FILTER TABLE The Current Filter Table displays the configured IP addresses and ports that are permitted or denied ac...

Page 68: ...tional public ports to be opened for each application Alternatively you can open up a client to unrestricted two way Internet access by defining it as DMZ demilitarized zone host VIRTUAL SERVERS Using...

Page 69: ...n the selection either the WAN Interface or WAN IP Address setting displays WAN Interface Select the WAN interface for the virtual server WAN IP Address Specify the WAN IP address for the virtual serv...

Page 70: ...page Interface Select the WAN interface for the Exclude IP service IP Range Specifies an IP address range to block on the WAN interface NAT FORWARDING Forwarding allows an external user to reach a pr...

Page 71: ...ble from the Internet using specific protocols This can be necessary with certain software applications that do not function reliably through Network Address Translation Figure 34 NAT ALG and Pass Thr...

Page 72: ...Figure 35 NAT Port Trigger The following items are displayed on this page Port Trigger Enables the feature Default Disabled Application Type Select a name from the list of common applications or set a...

Page 73: ...e TCP port to ensure NAT passthrough of FTP Figure 36 NAT FTP ALG Configuration The following items are displayed on this page FTP ALG Port Specifies a non standard FTP port for passthrough traffic Ra...

Page 74: ...ss pool range Global Start End IP Defines an external IP address pool range QUALITY OF SERVICE The Quality of Service page is used to enable or disable QoS and set the default priority for packets not...

Page 75: ...alues to port priority queues Add QoS Rule Specifies traffic classification rules based on protocol type and destination source MAC address and to set the resulting priority queue re marked IP Precede...

Page 76: ...able Default Allow maximum 32 entries are allowed Incoming Default Policy A default action for MAC addresses not configured in the filter table Default Allow maximum 32 entries NOTE The default outgoi...

Page 77: ...st the PC s TCP ports are completely exposed to the Internet allowing open two way communication The host PC should be assigned a static IP address Figure 40 DMZ Settings The following items are displ...

Page 78: ...ed in a URL traffic from that site may be blocked Figure 41 URL Blocking Settings The following items are displayed on this page URL Blocking Capability Enables or disables URL blocking Default Enable...

Page 79: ...oftware to be blocked by the router Figure 42 Software Forbidden Settings The following items are displayed on this page Current Forbidden Software List Software applications that are currently blocke...

Page 80: ...to cripple your system but not steal data The DoS Settings on the router enable the user to block many of the common DoS attacks a network might suffer Figure 43 DoS Settings The following items are...

Page 81: ...stematic queries to the unit for open ports through which to route traffic TCMP Smurf Prevents a situation whereby a hacker forges the IP address of the unit and sends repeated ping requests to it flo...

Page 82: ...eshold has been exceeded the IP address of the hacker is blocked Block Time sec Sets the length of time in seconds the IP address should remain blocked IGMP PROXY CONFIGURATION Multicasting is useful...

Page 83: ...es the robustness or expected packet loss for interfaces The robustness value is used in calculating the appropriate range for other IGMP variables Range 1 255 Default 2 Last Member Query Count The nu...

Page 84: ...ese cases there is no need to share routes because all Internet data from the network is sent to the same ISP gateway Figure 45 RIP Configuration The following items are displayed on this pages RIP En...

Page 85: ...g device mapping the destination IP address to the MAC address of the next hop toward the recipient until the packet is delivered to its final destination For devices that do not respond to ARP reques...

Page 86: ...iguration settings The following sections are contained in this chapter Bridge Setting on page 87 Log Setting on page 88 Routing Configuration on page 89 UPnP on page 91 SNMP Protocol Configuration on...

Page 87: ...e or router in your network to ensure that only one route exists between any two stations on the network and provide backup links which automatically take over when a primary link goes down Figure 47...

Page 88: ...logical order Log messages saved in the ADSL Router s memory are erased when the device is rebooted Figure 48 Log Setting The following items are displayed on this page Error Selects the Error level o...

Page 89: ...origin and destination When a packet is received a network device examines the packet and matches it to the routing table entry providing the best match for its destination The table then provides th...

Page 90: ...ed Add Route Adds a static route to the Static Route Table Update Clears the above fields Delete Selected Deletes the specified static route STATIC ROUTE TABLE This table displays all the configured s...

Page 91: ...ween devices supported by the same standard UPnP is based on standard Internet protocols such as TCP IP UDP and HTTP Figure 50 UPnP The following items are displayed on this page UPnP Enables UPnP on...

Page 92: ...ms are displayed on this pages SNMP Enables disables SNMP Default Enabled System Description A name given to identify the ADSL Router System Contact The name of the system contact person System Name A...

Page 93: ...onfigure time settings DayLight Enables daylight saving time to be configured State Enables NTP Network Time Protocol Default Disabled Primary Secondary Server Specifies NTP servers to poll for time u...

Page 94: ...e it establishes the PPPoE PPPoA connection with the ISP then forwards all other traffic to DHCP clients connected to the router Figure 53 Other Advanced Configuration The following items are displaye...

Page 95: ...dent network You can create up to four groups on the router Figure 54 Port Mapping Configuration The following items are displayed on this page WAN The WAN interfaces that can be grouped LAN The LAN i...

Page 96: ...he local Ethernet connection or the WAN connection for the DSL signal and the connection to DSL provider network This chapter contains the following sections Diagnostic Test on page 97 Ping on page 98...

Page 97: ...sults of a test for connectivity on the WAN port Test ADSL Synchronization Displays the connectivity of the ADSL synchronisation Test ATM OAM F5 Segment Loopback Displays the connectivity of an F5 seg...

Page 98: ...of pinging its own IP address or URL to test for connectivity Figure 56 Ping The following items are displayed on this page Host The host IP address or URL to test for connectivity Run Ping Sends the...

Page 99: ...ge A long sequence of these messages terminating only when the maximum timeout has been reached may indicate this problem with the target device A trace terminates when the destination responds when t...

Page 100: ...CHAPTER 9 Diagnostics Traceroute 100 Figure 59 Traceroute Result...

Page 101: ...fic Hlin Scale Displays the scaling factor for H Real and H Image represented in fixed point format Loop Attenuation dB Displays the attentuation of the link to the ADSL Router and the service provide...

Page 102: ...s the real part of channel transfer function of each subcarrier H Image Displays the imaginary part of channel transfer function of each subcarrier SNR Displays the SNR Singal to Noise Ratio of each s...

Page 103: ...les system logs TR 069 ACS passwords and also to update software and reboot the system This chapter contains the following sections Commit Reboot on page 104 Backup Restore Settings on page 105 Passwo...

Page 104: ...ion Save the current configuration Select this option if you want to save your changes for the next reboot Restore to the factory default configuration Select this option if you want to return all cha...

Page 105: ...o a local file and load previously saved settings to the unit Figure 63 Backup Restore Settings The following items are displayed on this page Save Settings to File Saves the current configuration to...

Page 106: ...by entering the default values Figure 64 Password Setup The following items are displayed on this page User Name Specifies the user name to configure Privilege Configures the access privileges that th...

Page 107: ...l computer by clicking Browse to search for the file to be used for the update Figure 65 Upgrade Firmware The following items are displayed on this page Select File Specifies the firmware file for the...

Page 108: ...f CPE devices The protocol uses HTTP for two way communication between the CPE device and an Auto Configuration Server ACS allowing service providers to provide CPE configuration software upgrades and...

Page 109: ...DSL device will only send Inform RPC to the ACS server once at the system startup Default Enabled Periodic Inform Interval Time interval in seconds to send Inform RPC CONNECTION REQUEST Defines the c...

Page 110: ...e ADSL Router and the ACS CPE Certificate Password The password to use with the ADSL Router s digital certificate file CPE Certificate The unique digital security certificate used by the ADSL Router t...

Page 111: ...111 SECTION III APPENDICES This section provides additional information and includes these items Troubleshooting on page 112 Hardware Specifications on page 114 Cables and Pinouts on page 118...

Page 112: ...k adapter card in the attached computer network cable or router LAN port may be defective Verify that the router and computer are powered on Be sure the cable is plugged into both the router and the c...

Page 113: ...when installing the network driver PROBLEMS ACCESSING THE MANAGEMENT INTERFACE Table 4 Web Access Troubleshooting Chart Symptom Action Cannot connect using a web browser Be sure the router is powered...

Page 114: ...10BASE T 100 ohm UTP cable Category 3 or better 100BASE TX 100 ohm UTP cable Category 5 or better Maximum Cable Length 100 m 328 ft DSL INTERFACE RJ 11 connector using standard phone cable 26 AWG LED...

Page 115: ...ort ATM cell format ITU T I 361 Support OAM F4 F5 loopback PPP FUNCTIONS Point to Point Protocol RFC1661 PPP over ATM RFC2364 PPP over Ethernet RFC2516 User Authentication CHAP RFC1994 PAP RFC1334 BRI...

Page 116: ...C1213 Firmware upgrade by Web TFTP Remote firmware upgrade UPnP EZ Setup Wizard TR069 remote management diagnostic TR067 ensures product meets all ADSL IOT tests QOS IP ToS function RFC 1349 802 1p bi...

Page 117: ...APPENDIX B Hardware Specifications Compliances 117 COMPLIANCES EMISSIONS FCC Part 15B Class B FCC Part 68 CE Mark ENVIRONMENTAL RoHS compliant SAFETY EN60950 1 2006 A11 2009...

Page 118: ...with white stripes Also an RJ 45 connector must be attached to both ends of the cable NOTE Each wire pair must be attached to the RJ 45 connectors in a specific orientation CAUTION DO NOT plug a phone...

Page 119: ...is to join two ports and only one of the ports has an internal crossover MDI X the two pairs of wires must be straight through When auto negotiation is enabled for any RJ 45 port on this gateway you c...

Page 120: ...st be implemented in the wiring When auto negotiation is enabled for any RJ 45 port on this gateway you can use either straight through or crossover cable to connect to any device type Figure 69 Cross...

Page 121: ...lly only one or two pairs of conductor pins and wires are implemented The RJ 11 port on this device contains one wire pair an inner pair on pins 3 and 4 This wire pair carries the digital data Figure...

Page 122: ...l Provides a framework for passing configuration information to hosts on a TCP IP network DHCP is based on the Bootstrap Protocol BOOTP adding the capability of automatic allocation of reusable networ...

Page 123: ...PING A utility used to determine whether a specific IP address is accessible It works by sending a packet to the specified address and waiting for a reply POTS Plain Old Telephone Service One of the...

Page 124: ...itched communications It uses IP as the underlying transport mechanism to provide access to IP like services UDP packets are delivered just like IP packets connection less datagrams that may be discar...

Page 125: ...ATM VC table 56 D DDNS 61 default settings reset 22 denial of service DoS 80 DHCP settings 47 DHCP relay 48 DHCP server 49 no DHCP 47 DMZ 77 DNS server 60 DSL statistics 42 E Ethernet 20 F factory de...

Page 126: ...environmental 114 power 114 specifications hardware 114 standards IEEE 116 ITU T 116 straight through cables 119 system indicators 21 requirements 23 system log 88 T TCP IP PC configuration 25 time zo...

Page 127: ...ore com www smc com Headquarters Sub Sahara Africa Office No 1 Creation Rd III Hsinchu Science Park Taiwan 30077 Tel 886 3 5770270 Fax 886 3 5780764 North America Office 20 Mason Irvine CA 92618 U S A...

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