SMC Networks 2455W Скачать руководство пользователя страница 46

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is modulated with a narrowband carrier signal that "hops" in a
random but predictable sequence from frequency to frequency
as a function of time over a wide band of frequencies. The signal
energy is spread in time domain rather than chopping each bit
into small pieces in the frequency domain. This technique
reduces interference because a signal from a narrowband 
system will only affect the spread spectrum signal if both are
transmitting at the same frequency at the same time. If 
synchronized properly, a single logical channel is maintained.

Firmware -

Code that is written onto read-only memory (ROM)

or programmable read-only memory (PROM). Once firmware
has been written onto the ROM or PROM, it is still new settings
remain even when the device is turned off.

Fragmentation Threshold- 

This specifies the maximum size a

data packet will be before splitting and creating a new packet
and should remain at its default setting of 2,346. A smaller 
setting means smaller packets, which will create more packets
for each transmission. Only minor modifications of this value are
recommended.

IEEE - 

The Institute of Electrical and Electronics Engineers,

pronounced I-triple-E, is an organization that develops stan-
dards that often become national and international standards.

IP Address -

An identifier for a computer or device on a TCP/IP 

network. Networks using the TCP/IP protocol route messages
based on the IP address of the destination. The format of an IP
address is a 
32-bit numeric address written as four numbers separated by
periods. Each number can be zero to 255. For example,
192.168.2.25 is a valid an IP address.

IPCONFIG -

A utility that provides for querying, defining and

managing IP addresses within a network. This utility is usually
run from the DOS prompt and is the perfect tool for 
troubleshooting connection issues.

Содержание 2455W

Страница 1: ...SMC2455W...

Страница 2: ...is granted by implication or otherwise under any patent or patent rights of SMC SMC reserves the right to change specifications at any time without notice Copyright 2002 by SMC Networks Inc 38 Tesla I...

Страница 3: ......

Страница 4: ...r television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one of the following measures Reorient or relocate the r...

Страница 5: ...with any other antenna or transmitter Industry Canada Class B This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interference...

Страница 6: ...SMC web site Failure to register will not affect the standard limited warranty The Limited Lifetime warranty covers a product during the Life of that Product which is defined as the period of time dur...

Страница 7: ...ith the product Customers must contact SMC for a Return Material Authorization number prior to returning any product to SMC Proof of purchase may be required Any product returned to SMC without a vali...

Страница 8: ...E SHALL SMC BE LIABLE FOR INCIDENTAL CONSEQUENTIAL INDIRECT SPECIAL OR PUNITIVE DAMAGES OF ANY KIND OR FOR LOSS OF REVENUE LOSS OF BUSINESS OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH...

Страница 9: ...valent Privacy WEP encryption Feature Highlights IEEE 802 11b high speed wireless connection up to 22 Mbps Supports extra Packet Binary Convolutional Coding PBCC modulation technique Plug and Play ins...

Страница 10: ...o a DHCP serv er or connected to a Barricade Broadband Router Use a stan dard Category 5 UTP Ethernet cable with an RJ 45 connector to connect the Access Point to one of router hub or switch Connect t...

Страница 11: ...eless Access Point To correct temporary connectivity problems the SMC2455W Wireless Access Point can be reset by the following methods The physical reset button on the back of the unit You can reset t...

Страница 12: ...olid then flash 5 6 times 6 Then the LINK ACT LED will blink quickly several times 7 Release the Reset button 8 Unplug the power from the Access Point for 2 seconds and then plug the power back in 9 T...

Страница 13: ...ion 2 Click on Tools link on the left hand navigation menu and then click the Configuration Tools option 3 Click the Default button to reset the unit to factory defaults 4 The unit will reboot and res...

Страница 14: ...he center of your wireless network Radio signals can travel farther outside of buildings and the best performance is when wireless components are in direct line of sight to one another Putting wireles...

Страница 15: ...figureWEPontheSMC2455W 2 3 Wireless Distance Table The following distance table shows the interaction between wireless coverage area and transmission speed for SMC2455W under typical installation circ...

Страница 16: ...encrypts wireless data so that it is only readable by other computers that have the matching WEP key The WEP key is stored on each wireless device so that data can be encrypted and decrypted as it is...

Страница 17: ...or privileges on the computer that you are working on On computers running Windows 2000 or Windows XP you must be a member of the Administrator group to install software and change network settings If...

Страница 18: ...15 3 2 Installing the Utility Software 1 At the splash screen click the Install Utility option to launch the Installation Wizard 2 Click the Next button to confirm the installation...

Страница 19: ...16 3 Configure the install location and then click the Next button to continue It is recommended that you choose the default folder name 4 Click the Finish button to complete the installation process...

Страница 20: ...tility 4 1 Using the Windows Utility 1 Click Start then Programs then SMC2455W Access Point Utility then SMC2455W Access Point Utility 2 The Utility will search your network for the EZ Connect Turbo W...

Страница 21: ...ork if you have more than one SMC2455W installed Configure wireless settings and TCP IP settings Configure wireless security WEP 4 2 Using the Web based Utility 1 Launch your web browser i e Internet...

Страница 22: ...hen the SMC2455W will auto assign itself an IP address of 192 168 2 50 3 Log into the Web based Utility The factory default password for he SMC2455W is default all lower case 4 Once logged into the We...

Страница 23: ...lt configuration of DHCP enabled it will auto configure itself to any network setting 5 1 Configure the Wireless Access Point using Windows based Utility 1 Log into the SMC2455W using the Windows base...

Страница 24: ...vanced Settings 4 Click Apply button to save your settings 5 To change your IP settings click the IP Settings button 6 From this section you can configure the following settings DHCP Fixed IP address...

Страница 25: ...the SMC2455W Web based Utility See section 4 2 for more information 2 Click on Setup Wizard link 3 The Setup Wizard will guide you through the basic configuration settings for the SMC2455W Through the...

Страница 26: ...ep in the Setup Wizard is to configure SSID Wireless Channel default wireless channel is 6 5 When you have completed this step click the NEXT button 6 The second step in the Setup Wizard is to configu...

Страница 27: ...completed this step click the FINISH button to save the settings and reboot the Access Point When you do this the Access Point will log you out of the Web based Utility 5 3 Configure the Wireless Acc...

Страница 28: ...tic IP or DHCP Configuration For static IP settings you can configure IP Address Subnet Mask Gateway 4 When you have completed configuring these settings click the APPLY button to save the settings an...

Страница 29: ...Threshold Fragmentation Threshold DTIM Interval Authentication Type Antenna SSID Broadcast Note Definitions of these settings can be found in the Glossary section at the end of this User Guide 6 When...

Страница 30: ...supports MAC Address filtering security feature This feature allows you to block unrecognized MAC address access to your wireless network Note The MAC Filtering option is only available using the Web...

Страница 31: ...n configure WEP Key Length HEX or ASCII format Set Key Number to use Note For information on WEP Key structures see Section 6 6 2 Configure WEP using Web based Utility 1 Log into the SMC2455W Web base...

Страница 32: ...you want to use based on the key length and format 7 Select the WEP key you want to use by clicking the button next to the Key number 8 When you have completed configuring these settings click the APP...

Страница 33: ...ion 5 Enter in the MAC address of the clients users that you want to have access to your wireless network Note On the MAC Filtering option there is a Connection list option This drop down menu will li...

Страница 34: ...rboTM Wireless Access Point The information below outlines which information can be found in which utility Windows Utility AP Name SSID IP Address Channel WEP Enable Disable Utility Version Web Utilit...

Страница 35: ...nt information using Windows based Utility 1 Log into the SMC2455W using the Windows based Utility See section 4 1 for more information 2 The default page of the Windows based Utility displays all of...

Страница 36: ...cess Point information using Web based Utility 1 Log into the SMC2455W using the Web based Utility See section 4 2 for more information 2 Click on Advanced Setup link 3 Click on Status link on the lef...

Страница 37: ...SMC2455W follow the steps outlined below 1 Log into the SMC2455W using the Web based Utility See section 4 2 for more information 2 Click on Advanced Setup link 3 The default page is the System secti...

Страница 38: ...nd navigation menu and then click the Firmware Upgrade option 4 Click the Browse button and browse to the location on you computer where you have the latest SMC2455W bin firmware saved 5 When you have...

Страница 39: ...e file so you can easily configure multiple Access Points with the same configuration 10 1 Back up the SMC2455W configuration 1 Log into the SMC2455W using the Web based Utility See section 4 2 for mo...

Страница 40: ...See section 4 2 for more information 2 Click on Advanced Setup link 3 Click on Tools link on the left hand navigation menu and then click the Configuration Tools option 4 Click the Browse button and...

Страница 41: ...Utility program please follow the steps below 1 Click Start then Programs choose SMC2455W Access Point Utility and then select Uninstall 2 To complete the uninstall process when prompted by the Confi...

Страница 42: ...455MHz 2475MHz Spain 2446 5MHz 2483 5MHz France Operating Channel 11 Channels US Canada 13 Channels Europe 14 Channels Japan RF Output Power 16 18 dBm Antenna Gain 2 dBi Sensitivity 80 dBm 22 Mbps PBC...

Страница 43: ...k the following a Make sure all wireless clients and the SMC2455W Wireless Access Point have the same SSID and WEP settings b Make sure the wireless clients are set to the Infrastructure Access Point...

Страница 44: ...share a secret key All points on your network must use the same authentication type It is recommended that you use the default setting Beacon Interval This value indicates the frequency interval of th...

Страница 45: ...bit pattern for each bit that is transmitted which increases the signal s resistance to interference If one or more bits in the pattern are damaged during transmission the original data can be recove...

Страница 46: ...um size a data packet will be before splitting and creating a new packet and should remain at its default setting of 2 346 A smaller setting means smaller packets which will create more packets for ea...

Страница 47: ...IP address is accessible It works by sending a packet to the specified address and waiting for a reply PING is used primarily to troubleshoot Internet connections Preamble Type The preamble defines th...

Страница 48: ...he IP protocol deals only with packets TCP enables two hosts to establish a connection and exchange streams of data TCP IP Transmission Control Protocol Internet Protocol TCP is one of the main protoc...

Страница 49: ...guration utility based on the Win32 API for querying defining and managing IP addresses within a network A commonly used utility under Windows 95 98 and Me for configuring networks WLAN Acronym for wi...

Страница 50: ...enelux 31 33 455 72 88 Fax 31 33 455 73 30 Central Europe 49 0 89 92861 0 Fax 49 0 89 92861 230 Switzerland 41 0 1 9409971 Fax 41 0 1 9409972 Nordic 46 0 868 70700 Fax 46 0 887 62 62 Northern Europe 4...

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