Edimax EW-7157Mg User Manual Download Page 23

 

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6.  What is BSS ID

 

A specific Ad hoc LAN is called a Basic Service Set (BSS). Computers in a BSS must be 
configured with the same BSS ID. 
 

7.  What is WEP

 

WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 40 bit shared key 
algorithm, as described in the IEEE 802 .11 standard. 
 

8.  What is TKIP? 

TKIP is a quick-fix method to quickly overcome the inherent weaknesses in WEP security, 
especially the reuse of encryption keys. TKIP is involved in the IEEE 802.11i WLAN security 
standard, and the specification might be officially released by early 2003. 
 

9. What 

is 

AES? 

AES (Advanced Encryption Standard), a chip-based security, has been developed to ensure the 
highest degree of security and authenticity for digital information, wherever and however 
communicated or stored, while making more efficient use of hardware and/or software than 
previous encryption standards. It is also included in IEEE 802.11i standard. Compare with AES, 
TKIP is a temporary protocol for replacing WEP security until manufacturers implement AES at 
the hardware level. 
 

10.  Can Wireless products support printer sharing

   

Wireless products perform the same function as LAN products. Therefore, Wireless products can 
work with Netware, Windows 2000, or other LAN operating systems to support printer or file 
sharing. 

 

11.  Would the information be intercepted while transmitting on air

 

WLAN features two-fold protection in security. On the hardware side, as with Direct Sequence 
Spread Spectrum technology, it has the inherent security feature of scrambling. On the software 
side, WLAN series offer the encryption function (WEP) to enhance security and Access Control. 
Users can set it up depending upon their needs. 
 

12.  What is DSSS

What is FHSS

And what are their differences

 

Frequency-hopping spread-spectrum (FHSS) uses a narrowband carrier that changes frequency 
in a pattern that is known to both transmitter and receiver. Properly synchronized, the net effect 
is to maintain a single logical channel. To an unintended receiver, FHSS appears to be 
short-duration impulse noise. Direct-sequence spread-spectrum (DSSS) generates a redundant 
bit pattern for each bit to be transmitted. This bit pattern is called a chip (or chipping code). The 
longer the chip is, the greater the probability that the original data can be recovered. Even if one 
or more bits in the chip are damaged during transmission, statistical techniques embedded in the 
radio can recover the original data without-the need for retransmission. To an unintended 
receiver, DSSS appears as low power wideband noise and is rejected (ignored) by most 
narrowband receivers. 
 
 
 

Summary of Contents for EW-7157Mg

Page 1: ...8 80 02 2 1 11 1g g W Wi ir re el le es ss s L LA AN N M Mi in ni i P PC CI I C Ca ar rd d User Manual Version 1 0 January 2004...

Page 2: ...arranties merchantability or fitness for any particular purpose Any software described in this manual is sold or licensed as is Should the programs prove defective following their purchase the buyer a...

Page 3: ...interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a c...

Page 4: ...of those who install and use it However special attention must be paid to the dangers of electric shock and static electricity when working with electrical equipment All guidelines of this and of the...

Page 5: ...res 1 1 2 Specifications 1 1 3 Package Contents 2 2 INSTALLATION PROCEDURE 3 3 CONFIGURATION UTILITY 5 3 1 Status 6 3 2 Site Survey 8 3 1 1 Configure the Profile 9 3 1 2 Enable WPA 12 3 3 Statistics 1...

Page 6: ...02 11i for the security in the wireless network The power consumption of the card is also very low Furthermore this card provides several levels of power saving modes allowing user customizes the way...

Page 7: ...Sensitivity 54Mbps OFDM 10 PER 72dBm 11Mbps CCK 8 PER 85dBm 1Mbps BPSK 8 PER 93dBm Dimension 59 6 L x 44 45 W mm Temperature 32 131 F 0 55 C Humidity Max 95 NonCondensing Certification FCC CE 1 3 Pack...

Page 8: ...Wireless Mini PCI Card driver utility before please uninstall the old version first 1 Execute the setup program located in the Driver Utility folder of CD Click Next button to continue installation 2...

Page 9: ...matically detect the card as a new device and display Found New Hardware Wizard dialog box Follow the installation wizard to complete the device setup step by step 6 After completing the installation...

Page 10: ...is associated it will appear as different color for different level of signal strength There are 3 levels of icons to represent the signal strength the green one signal strength from 100 50 the yello...

Page 11: ...n a WLAN The ID prevents the unintentional merging of two co located WLANs Only the wireless devices with the same SSID can interconnect Link Status Display Scanning Connected or Disconnected status w...

Page 12: ...quality of the link The higher the percentage the better the quality Network Address Network Address section shows the current Network status such as the MAC address of the card DHCP Enable or not IP...

Page 13: ...uding the BSSID SSID Mode WEP On Off Channel Signal Strength and Support Rates If you want to connect to any networks on the list double click the item on the list and the card will automatically conn...

Page 14: ...ss Point All communication is done via the Access Point Ad Hoc Select this mode if you want to connect to another wireless stations in the Wireless LAN network without through an Access Point SSID The...

Page 15: ...ere are only Automatic 1 2 5 5 11Mbps options you can select If you want to enable the data rate up to 54Mbps 11g please follow steps listed below 1 Go to Network Connections 2 Right Click the Wireles...

Page 16: ...4 by selected the radio button The WEP keys are used to encrypt data transmitted in the wireless network Fill the text box by following the rules below 64 bit Input 10 digit Hex values in the A F a f...

Page 17: ...rk performance Select a setting within a range of 256 to 2346 bytes Minor change is recommended RTS Threshold Minimum packet size required for an RTS Request To Send For packets smaller than this thre...

Page 18: ...ess Configure button to configure the WPA function for the current network 1 From here right click the icon to select View Available Wireless Networks 2 Press Advanced button from Wireless Network Con...

Page 19: ...or gateway as well as in each PC on the wireless network WPA takes over automatically from that point keeping unauthorized users that don t have the matching password from joining the network while e...

Page 20: ...option enables you to view the available statistic information with its Tx counts Tx success Tx error Tx Throughput and its Rx counts Rx success Rx error Rx Throughput You may reset the counters by pr...

Page 21: ...choosing this option you can view basic information about the Utility such as the Driver and Utility Version And you can click the hyperlink to connect the website for the information of the wireless...

Page 22: ...RP includes the modulation schemes found in 802 11b including CCK for 11 and 5 5 Mbps and Barker code modulation for 2 and 1 Mbps B A protection mechanism called RTS CTS that governs how 802 11g devic...

Page 23: ...with Netware Windows 2000 or other LAN operating systems to support printer or file sharing 11 Would the information be intercepted while transmitting on air WLAN features two fold protection in secur...

Page 24: ...other words more bandwidth is consumed than in the case of narrowband transmission but the trade off produces a signal that is in effect louder and thus easier to detect provided that the receiver kn...

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