User's Manual

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Contents

March 28, 2006 Part 004840A Rev 03

Introduction............................................................................ 9

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

The Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

The Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

The Internal Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Installing the SOMAport...................................................... 15

Unpack the SOMAport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Choose the Best Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Power on the SOMAport. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Connect Computer Using Ethernet. . . . . . . . . . . . . . . . . . . . . . . . . .19

Connect Computer Using USB. . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Connect Telephones to the SOMAport. . . . . . . . . . . . . . . . . . . . . . .22

Activate Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Connecting Multiple Computers ........................................ 27

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Using an Ethernet Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Using an Internet Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Troubleshooting .................................................................. 31

Finding Causes of Computer Problems . . . . . . . . . . . . . . . . . . . . . .32

Finding Causes of Telephone Problems . . . . . . . . . . . . . . . . . . . . .33

The Signal is Weak. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

There is a Fault Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

The SOMAport is Not Receiving Power . . . . . . . . . . . . . . . . . . . . . .36

There is a Problem with the Ethernet or USB Cabling . . . . . . . . . . .37

There is a Problem with the USB Port Settings . . . . . . . . . . . . . . . .39

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Summary of content (60 pages)

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sp3.book Page 1 Tuesday, March 28, 2006 5:09 PM Contents Introduction............................................................................ 9 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 The Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 The Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 The Internal Antenna . . . . . . . . . . . . . . . . . . . . . .
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sp3.book Page 2 Tuesday, March 28, 2006 5:09 PM The Computer Uses an Old Dial-Up Connection . . . . . . . . . . . . . . Internet Explorer LAN Settings are Incorrect . . . . . . . . . . . . . . . . . Ethernet Network Settings are Incorrect . . . . . . . . . . . . . . . . . . . . . IP address Needs to be Renewed . . . . . . . . . . . . . . . . . . . . . . . . . 40 42 43 52 Specifications ......................................................................55 Index .........................................
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sp3.book Page 3 Tuesday, March 28, 2006 5:09 PM SOMA NETWORKS INC. ENDUSER PRODUCT LICENSE AGREEMENT THE SOMAPORT™ SUBSCRIBER TERMINAL AND PROVIDED SOFTWARE CONTAIN CERTAIN COMPUTER PROGRAMS AND OTHER PROPRIETARY MATERIAL OF SOMA NETWORKS INC. OR LICENSED TO SOMA NETWORKS, INC., THE USE OF WHICH IS SUBJECT TO THIS AGREEMENT.
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sp3.book Page 4 Tuesday, March 28, 2006 5:09 PM 4. WARRANTY DISCLAIMER: THE SOFTWARE IS PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. FURTHER, SOMA DOES NOT WARRANT, GUARANTEE OR MAKE ANY REPRESENTATIONS REGARDING THE USE, OR THE RESULTS OF THE USE, OF THE PRODUCT OR WRITTEN MATERIALS IN TERMS OF CORRECTNESS, ACCURACY, RELIABILITY, OR OTHERWISE.
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sp3.book Page 5 Tuesday, March 28, 2006 5:09 PM IMPORTANT SAFETY INSTRUCTIONS Installation Read instructions — Read and follow all of the safety and operating instructions before operating the SOMAport. Retain instructions — Retain the safety and operating instructions for future reference. Heed warnings — Adhere to all warnings on the SOMAport and in the operating instructions.
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sp3.book Page 6 Tuesday, March 28, 2006 5:09 PM Attachments — Do not use attachments with the SOMAport that have not been recommended in this guide as they may cause hazards. Water and moisture — Do not use the SOMAport near water or moisture. Maintenance and Servicing Cleaning — Unplug the SOMAport from the wall outlet before cleaning. Do not use liquid or aerosol cleansers. Use a dry cloth to wipe the outside of the unit.
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sp3.book Page 7 Tuesday, March 28, 2006 5:09 PM REGULATORY NOTICES The SOMAport has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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sp3.book Page 9 Tuesday, March 28, 2006 5:09 PM R Introduction This chapter provides an introduction to the SOMAport subscriber terminal. Please read this chapter to familiarize yourself with the features and operation of the device. Contents Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The Back Panel . . . . .
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sp3.book Page 10 Tuesday, March 28, 2006 5:09 PM OVERVIEW The SOMAportTM subscriber terminal provides high-speed Internet access and telephone service. The SOMAport works like a cell phone, in that it communicates with your service provider’s network over the air and does not require a special wire connection or external antenna. Installation is easy. You simply plug-in the SOMAport and connect it to your computer using the provided Ethernet or USB cables.
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sp3.book Page 11 Tuesday, March 28, 2006 5:09 PM THE FRONT PANEL There are two lights on the front panel that indicate the state of the SOMAport: status and network. Status Light Network Light NOTE: DO NOT unplug the SOMAport when the Status light is flashing amber. The Status light flashes amber during sensitive firmware upgrades only. Disconnectng or powering off the SOMAport during a firmware upgrade may damage the unit and render it nonfunctional.
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sp3.book Page 12 Tuesday, March 28, 2006 5:09 PM Status Light The status light indicates whether or not the SOMAport is powered on and operating normally. State Description Off The SOMAport is not receiving power. Amber The SOMAport is booting and running its internal diagnostics. Flashing amber The SOMAport is upgrading its firmware. DO NOT unplug the SOMAport when this light is flashing.
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sp3.book Page 13 Tuesday, March 28, 2006 5:09 PM THE BACK PANEL The jacks and ports for connecting other devices to the SOMAport are on the back panel, as shown below. Ethernet Port USB Port Telephone Jack (Line 2) Telephone Jack (Line 1) Power Jack Part Description Ethernet port Use this port with the supplied Ethernet cable to connect the SOMAport to a computer or hub. This is the preferred type of Internet connection.
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sp3.book Page 14 Tuesday, March 28, 2006 5:09 PM THE INTERNAL ANTENNA The SOMAport communicates with a cellular tower operated by your wireless service provider. The SOMAport contains an antenna that automatically steers itself toward the best signal when you plug in the SOMAport. It also periodically checks to see if the current antenna direction is optimal and adjusts automatically if required.
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sp3.book Page 15 Tuesday, March 28, 2006 5:09 PM R Installing the SOMAport This chapter explains how to install the SOMAport and activate service. After following the procedures described in this chapter, your SOMAport should be fully functional. NOTE: This chapter explains how to connect the SOMAport to a single computer. For information about connecting multiple computers to the SOMAport, see “Connecting Multiple Computers” on page 27. Contents Unpack the SOMAport . . . . . . . . . . . . . . . . . . .
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sp3.book Page 16 Tuesday, March 28, 2006 5:09 PM UNPACK THE SOMAPORT Unpack the SOMAport and make sure you have all the pieces shown below. Find the SOMAport serial number on the bottom of the unit and write it down. You may need this number if you call for technical support.
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sp3.book Page 17 Tuesday, March 28, 2006 5:09 PM CHOOSE THE BEST LOCATION Although the SOMAport’s internal antenna is self-steering, you can optimize signal reception by following these recommendations when choosing a location: Allow at least 46 centimeters (18 inches) of space around the SOMAport. If your home or office has multiple floors, place the SOMAport on one of the upper floors, if possible. Avoid putting it in the basement. Place the SOMAport higher up in a room.
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sp3.book Page 18 Tuesday, March 28, 2006 5:09 PM POWER ON THE SOMAPORT The SOMAport does not have a power switch. To turn it on, plug it into a power outlet. To turn it off, unplug it. WARNING: Use only the power supply and power cord that come with the SOMAport. Using another power supply may damage your equipment and might cause shock or electrocution. To power on the SOMAport 1 Insert the connector on the power supply cord into the power jack on the back of the SOMAport.
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sp3.book Page 19 Tuesday, March 28, 2006 5:09 PM CONNECT COMPUTER USING ETHERNET If your computer has an Ethernet port, use the supplied Ethernet cable to connect your computer to the SOMAport. If your computer does not have an Ethernet port, use the USB cable instead. See “Connect Computer Using USB” on page 20 for more information. To connect a computer via Ethernet 1 Insert one end of the supplied Ethernet cable into the Ethernet port on the back of the SOMAport.
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sp3.book Page 20 Tuesday, March 28, 2006 5:09 PM CONNECT COMPUTER USING USB If your computer does not have an Ethernet port and it is running Windows 98SE, ME, 2000, or XP, you can use the supplied USB cable to connector your computer to the SOMAport. NOTE: Ethernet is the preferred type of connection. The USB connection should only be used in computers that do not support Ethernet. To connect a computer via USB 1 Ensure that the SOMAport is powered on. See “Power on the SOMAport” on page 18.
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sp3.book Page 21 Tuesday, March 28, 2006 5:09 PM You will see the following message at the beginning of the installation: The software you are installing for this hardware: SOMAport USB (SOMAport.SYS) has not passed Windows Logo testing to verify its compatibility with Windows. Click Continue Anyway. The drivers have passed stringent internal testing by SOMA Networks, Inc.
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sp3.book Page 22 Tuesday, March 28, 2006 5:09 PM CONNECT TELEPHONES TO THE SOMAPORT In order to use a telephone with your SOMAport, you will need to subscribe to your service provider’s telephone service during service activation. If telephone service is not available in your area or if you do not want to use telephones with your SOMAport, skip to “Activate Service” on page 26. Telephone Jacks There are two telephone jacks on the back of the SOMAport, one for line 1 (bottom) and the other for line 2 (top).
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sp3.book Page 23 Tuesday, March 28, 2006 5:09 PM To connect a single telephone Insert the free end of the telephone cable into the line 1 (bottom) jack on the SOMAport. NOTE: To connect a two-line telephone, you must subscribe to two lines.
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sp3.book Page 24 Tuesday, March 28, 2006 5:09 PM To connect two telephones (when you have two lines) 1 Connect the cable of the telephone you want serviced by line 1 to the line 1 (bottom) jack on the SOMAport. 2 Connect the cable of the telephone you want serviced by line 2 to the line 2 (top) jack on the SOMAport. NOTE: If you have a two-line telephone, connect it to the line 1 (bottom) jack.
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sp3.book Page 25 Tuesday, March 28, 2006 5:09 PM To connect two telephones (when you have one line) 1 Insert a dual-jack extension cord or adapter into the line 1 (bottom) jack of the SOMAport. 2 Insert the free end of one telephone cable into one of the jacks on the adapter. 3 Insert the free end of the second telephone cable into the other jack on the adapter. To test your SOMAport telephone service Pick up the receiver and listen for dial tone.
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sp3.book Page 26 Tuesday, March 28, 2006 5:09 PM ACTIVATE SERVICE After the SOMAport powers on, it will be in one of two service modes: Restricted access – Your SOMAport remains in this mode until your account is activated by your service provider. You can use the SOMAport only to contact your service provider to activate full service, either by telephone or through the service provider’s Web site.
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sp3.book Page 27 Tuesday, March 28, 2006 5:09 PM R Connecting Multiple Computers This chapter explains how to install the SOMAport as an Internet gateway for a local area network. Follow the procedures in this chapter if you want to connect multiple computers to the SOMAport. Contents Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Using an Ethernet Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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sp3.book Page 28 Tuesday, March 28, 2006 5:09 PM OVERVIEW A hub, switch, or router is required in order to share the Internet connection with multiple computers.The SOMAport functions as a DHCP server (it automatically assigns IP addresses to devices attached to it) and will work with most consumer home network devices. The connection procedure differs slightly depending on the type of your home network device: When using a hub or switch, see “Using an Ethernet Hub” on page 29.
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sp3.book Page 29 Tuesday, March 28, 2006 5:09 PM USING AN ETHERNET HUB An Ethernet hub or switch (referred to generically in this section as a “hub”) can be used to have multiple computers share an Internet connection from a single SOMAport. NOTE: Each computer connected to the hub requires an IP address assigned to it by your service provider. Contact your service provider for information about provisioning an account that can use several IP addresses.
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sp3.book Page 30 Tuesday, March 28, 2006 5:09 PM USING AN INTERNET ROUTER An Internet router, supporting either Ethernet or WiFi (802.11) connnections, can be used to have multiple computers share an Internet connection from a single SOMAport. To use an Internet router with the SOMAport 1 Choose a location and power on the SOMAport, as described in chapter 2. 2 Wait for the SOMAport to find a basestation (the network light will turn green). 3 Power on the router.
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sp3.book Page 31 Tuesday, March 28, 2006 5:09 PM R Troubleshooting This chapter describes the problems the SOMAport may exhibit, the possible causes of those problems, and the actions you should take to fix them. Contents Finding Causes of Computer Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Finding Causes of Telephone Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The Signal is Weak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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sp3.book Page 32 Tuesday, March 28, 2006 5:09 PM FINDING CAUSES OF COMPUTER PROBLEMS Look up the problem you are experiencing and follow the suggested actions. If the recommended actions do not fix the problem, call your service provider. Problem Possible causes Action You cannot connect to the Internet Network settings for an Ethernet connection are incorrect. See “Ethernet Network Settings are Incorrect” on page 43. Signal has been dropped. Unplug the SOMAport and plug it back in again.
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sp3.book Page 33 Tuesday, March 28, 2006 5:09 PM FINDING CAUSES OF TELEPHONE PROBLEMS Look up the problem you are experiencing and follow the suggested actions. If the recommended actions do not fix the problem, call your service provider. Problem Possible causes Action Irregular dial tone If you hear a series of tones (not a regular dial tone) before you attempt a call, the SOMAport has not yet acquired a signal. Wait a few minutes and try again.
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sp3.book Page 34 Tuesday, March 28, 2006 5:09 PM THE SIGNAL IS WEAK The signal to your SOMAport may be weak if you are having any of the following problems: Telephone voice quality is poor or calls are dropped It takes a long time to open a Web page You cannot browse the Internet at all To improve reception quality 1 Make sure you have located the SOMAport according to the guidelines listed in “Choose the Best Location” on page 17. 2 See if a nearby appliance is disrupting the signal.
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sp3.book Page 35 Tuesday, March 28, 2006 5:09 PM THERE IS A FAULT CONDITION If the status light is red, the SOMAport has detected a fault. In this situation, restart the SOMAport. To restart the SOMAport 1 Unplug the SOMAport from the wall power outlet and wait at least 10 seconds. 2 Plug the SOMAport back in. 3 Wait until the status light on the front panel is green (an indication that the SOMAport is operating correctly). If the status light still indicates a problem, call your service provider.
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sp3.book Page 36 Tuesday, March 28, 2006 5:09 PM THE SOMAPORT IS NOT RECEIVING POWER If the light on the power supply and the status light on the SOMAport are off, the SOMAport is not getting power. Try each of the actions in the following procedure until you locate the source of the problem. To check the power 1 Make sure the power cord that connects the power supply to the wall outlet is securely connected to the power supply and the wall outlet.
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sp3.book Page 37 Tuesday, March 28, 2006 5:09 PM THERE IS A PROBLEM WITH THE ETHERNET OR USB CABLING If there is a problem with the physical connection between the SOMAport and your computer or hub, you will not be able to browse the Internet. Ethernet connection There are two lights on the Ethernet port that indicate the status of the Ethernet connection: link (green), and data transmit (amber).
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sp3.book Page 38 Tuesday, March 28, 2006 5:09 PM USB connection There is no link light on the USB port. If you are using USB to connect your computer to the SOMAport and you suspect there is a problem with the physical connection, check the USB cabling. To check USB cabling 1 Make sure the cable connectors are firmly inserted in the proper USB ports on the SOMAport and the computer or hub. 2 Make sure the length of the cable does not exceed 5 meters (15 feet).
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sp3.book Page 39 Tuesday, March 28, 2006 5:09 PM THERE IS A PROBLEM WITH THE USB PORT SETTINGS If you are having problems getting the USB connection to work, ensure that your computer’s USB port is enabled and properly set up. To check your PC’s USB port settings 1 Open the Control Panel: In Windows 98 and 2000 and ME, choose Start→Settings→Control Panel. In Windows XP, choose Start→Control Panel. 2 Double-click the System icon.
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sp3.book Page 40 Tuesday, March 28, 2006 5:09 PM THE COMPUTER USES AN OLD DIAL-UP CONNECTION If you switched from a dial-up Internet service when you subscribed to wireless SOMAport Internet service, you may still be prompted to connect to the Internet using the old dial-up connection. If this is the case, use the procedure in this section appropriate to your operating system to ensure that your dial-up connection is not automatically activated whenever you attempt to connect to the Internet.
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sp3.book Page 41 Tuesday, March 28, 2006 5:09 PM To disable the automatic dial-up connection in Mac OS X 1 Click the Apple icon and choose System Preferences. 2 Click the Network icon. 3 Click Show. 4 Select Network Port Configurations from the pull-down list. 5 Disable the On checkbox for the dial-up modem. 6 Click Apply Now.
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sp3.book Page 42 Tuesday, March 28, 2006 5:09 PM INTERNET EXPLORER LAN SETTINGS ARE INCORRECT If you are using Internet Explorer as your Web browser, make sure it is configured to automatically detect LAN settings. If this default setting has been disabled, you will not be able to connect to the Internet. To check Internet Explorer settings 1 Open Internet Explorer. 2 Choose Tools→Internet Options. The Internet Options window opens. 3 Click the Connections tab. 4 Click LAN Settings.
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sp3.book Page 43 Tuesday, March 28, 2006 5:09 PM ETHERNET NETWORK SETTINGS ARE INCORRECT If you could not get an Internet connection after connecting your computer to the SOMAport via Ethernet, but your physical connection seems to be intact, your computer’s Ethernet network settings may need to be changed. Use the procedure in this section appropriate to your operating system to reconfigure Ethernet network settings.
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sp3.book Page 44 Tuesday, March 28, 2006 5:09 PM 5 Check the TCP/IP properties: i Click Properties. The TCP/IP Properties window opens to the IP Address tab. ii Make sure the Obtain an IP address automatically radio button is enabled. iii Click the DNS Configuration tab. iv Enable the Disable DNS radio button. v Click OK on the TCP/IP Properties window. vi Click OK on the Network window. vii Restart the computer if prompted to do so.
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sp3.book Page 45 Tuesday, March 28, 2006 5:09 PM To change network settings in Windows 98 and ME 1 Choose Start→Settings→Control Panel. 2 Click the Network icon. The Network window opens to the Configuration tab. 3 Select TCP/IP. If multiple TCP/IP connections are listed, select the one that contains “Ethernet”, “NIC”, or “10/100 MB” in its name. Go to step 4. If TCP/IP is not listed, install it: i Click Add. The Select Network Component Type window opens. ii Select Protocol from the list.
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sp3.book Page 46 Tuesday, March 28, 2006 5:09 PM If your browser automatically opens to your service provider’s Web site, full service has already been activated and you can begin using your SOMAport for Internet service. If your browser does not automatically open to your service provider’s Web site, go to step 6. 6 Enter a valid Internet address (such as www.google.com) in the Address field and press Enter.
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sp3.book Page 47 Tuesday, March 28, 2006 5:09 PM ii Select Protocol from the list. iii Click Add. The Select Network Protocol window opens. iv Select Internet Protocol (TCP/IP). v Click OK. vi Insert the Windows 2000 CD or reboot the computer if prompted to do so. vii If the PC reboots, repeat steps 1 to 4. 5 Check TCP/IP properties: i Click Properties. ii The Internet Protocol (TCP/IP) Properties window opens to the General tab.
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sp3.book Page 48 Tuesday, March 28, 2006 5:09 PM If your computer attempts to connect to the Internet using an old dial-up connection, see “The Computer Uses an Old Dial-Up Connection” on page 40. If you do not get an Internet connection, see “Finding Causes of Computer Problems” on page 32. To change network settings in Windows XP 1 Choose Start→Settings→Network Connections. The Network Connections window opens. 2 Select the Local Area Connection icon.
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sp3.book Page 49 Tuesday, March 28, 2006 5:09 PM ii Make sure the Obtain an IP address automatically radio button is enabled. iii Make sure the Obtain DNS server address automatically radio button is enabled. iv Click OK on the Internet Protocol (TCP/IP) Properties window. v Click OK on the Local Area Connection Properties window. vi Click Close on the Local Area Connection Status window. vii Restart the computer if prompted to do so.
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sp3.book Page 50 Tuesday, March 28, 2006 5:09 PM If you made any changes, save them when prompted. 5 Restart your computer. 6 Check your Internet connection by launching a Web browser on the computer connected to the SOMAport. If your browser automatically opens to your service provider’s Web site, full service has already been activated. If your browser does not automatically open to your service provider’s Web site, go to step 7. 7 Enter a valid Internet address (such as www.google.
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sp3.book Page 51 Tuesday, March 28, 2006 5:09 PM If your service provider’s Web page opens, activate full service by following the sign-up procedure that is provided on the Web site. If you do not get an Internet connection, see “Finding Causes of Computer Problems” on page 32.
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sp3.book Page 52 Tuesday, March 28, 2006 5:09 PM IP ADDRESS NEEDS TO BE RENEWED If you cannot connect to the Internet even after you have checked all cabling and network settings and have rebooted the computer, follow the appropriate procedure in this section to manually obtain a new IP address. To obtain a new IP address (Windows 95 only) 1 Choose Start→Run. 2 Enter winipcfg in the Open field and click OK. The IP Configuration window opens.
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sp3.book Page 53 Tuesday, March 28, 2006 5:09 PM To obtain a new IP address (all other versions of Windows) 1 Open a command window using one of the following methods: In Windows 2000 or XP, choose Start→Programs→Accessories→Command Prompt. In Windows 98 or ME, choose Start→Programs→MS-DOS Prompt. The command window opens.
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sp3.book Page 55 Tuesday, March 28, 2006 5:09 PM Specifications Release SOMAport 300 Internal antenna Type: internal passive-steered array antenna Internal antenna gain: 3 dBi Transmitted EIRP: 30 dBm RF output power: 27 dBm Device ports and interfaces Telephone Jacks: 2 RJ-11 telephone jacks Max REN per jack: 5 Max REN per SOMAport: 5 REN simultaneous, 10 REN interleaved Data Ethernet (RJ-45, 10Base-T), USB (type “B”, 1.
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sp3.book Page 58 Tuesday, March 28, 2006 5:09 PM jacks.
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sp3.book Page 59 Tuesday, March 28, 2006 5:09 PM poor voice quality 33 telephone calls are dropped 33 telephone jacks 13, 22 testing telephone connection 25 two-line telephones 22 U unpacking 16 USB checking the cable 38 installing drivers 21 port 13 troubleshooting 38 when to use 19 V voice quality 33 W warnings 5 Web pages.
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