Nexxt Solutions SAROS300 ユーザーズマニュアル

Nexxt Solutions  -  SAROS - Wireless N PCI-E Adapter

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It is designed to trade off bandwidth efficiency for reliability, integrity, and security. In 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 knows the parameters of the spread-spectrum signal being broadcast. If a receiver is 

not tuned to the right frequency, a spread-spectrum signal looks like background noise. 

There are two main alternatives, Direct Sequence Spread Spectrum (DSSS) and Frequency 

Hopping Spread Spectrum (FHSS). 

SSID - A Service Set Identification is a thirty-two character (maximum) alphanumeric key identi-

fying a wireless local area network. For the wireless devices in a network to communicate with 

each other, all devices must be configured with the same SSID. This is typically the configura-

tion parameter for a wireless PC card. It corresponds to the ESSID in the wireless Access 

Point and to the wireless network name. See also Wireless Network Name and ESSID. 

WEP - (Wired Equivalent Privacy) - A data privacy mechanism based on a 64-bit or 128-bit or 

152-bit shared key algorithm, as described in the IEEE 802.11 standard. To gain access to a 

WEP network, you must know the key. The key is a string of characters that you create. When 

using WEP, you must determine the level of encryption. The type of encryption determines the 

key length. 128-bit encryption requires a longer key than 64-bit encryption. Keys are defined 

by entering in a string in HEX (hexadecimal - using characters 0-9, A-F) or ASCII (American 

Standard Code for Information Interchange – alphanumeric characters) format. ASCII format is 

provided so you can enter a string that is easier to remember. The ASCII string is converted to 

HEX for use over the network. Four keys can be defined so that you can change keys easily. 

WLAN - (Wireless Local Area Network) - A group of computers and associated devices 

communicate with each other wirelessly, which network serving users are limited in 

a local area. 

WPA - (Wi-Fi Protected Access) - A wireless security protocol uses TKIP (Temporal Key 

Integrity Protocol) encryption, which can be used in conjunction with a RADIUS server. 

This equipment 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 protec-

tion against harmful interference in a residential installation. This equipment generates, uses 

and can radiate radio frequency energy and, if not installed and used in accordance with the 

instructions, may cause harmful interference to radio communications. However, there is no 

guarantee that interference will not occur in a particular installation. If this equipment does 

cause harmful interference to radio or 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 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 circuit different from that to which the 

  receiver is connected. 

• Consult the dealer or an experienced radio/TV technician for help.