Digitus WLAN PCI Adapter DN-7036 /-A User Manual

Product codes
DN-7036 /-A
Page of 29
 
 54/108M Wireless PCI/CardBus Adapter User Guide 
 
Appendix B: Glossary 
 
108M Super G
TM
 WLAN Transmission Technology  - 108M Super G
TM
 WLAN 
Transmission Technology employs multiple performance-enhancing techniques 
including packet bursting, fast frames, data compression, and dynamic turbo mode 
that combine to improve the throughput and range of wireless networking products. 
Users can experience link rates of up to 108Mbps, twice the industry-standard 
maximum data link rate of 54Mbps, while preserving full compatibility with traditional 
802.11g or 802.11b networks. 108M Super G
TM
 products offer the highest throughput 
performance available on the market today. In dynamic 108M mode, the device can 
attach 802.11b, 802.11g and 108Mbps Super G
TM
 
devices at the same time in an 
integrated environment. 
 
2x to 3x eXtended Range
TM
 WLAN Transmission Technology - The WLAN device 
with 2x to 3x eXtended Range
TM
 WLAN transmission technology make its sensitivity up to 
105 dB, which gives users the ability to have robust, longer-range wireless connections. 
With this range-enhancing technology, a 2x to 3x eXtended Range
TM
 based client and 
access point can maintain a connection at as much as three times the transmission 
distance of traditional 802.11b and 802.11g products, for a coverage area that is up to nine 
times greater. A traditional 802.11b and 802.11g product transmission distance is about 
300m, A 2x to 3x eXtended Range
TM
 based client and access point can maintain a 
connection transmission distance may be up to 830m. 
 
802.11b - The 802.11b standard specifies a wireless product networking at 11 Mbps 
using direct-sequence spread-spectrum (DSSS) technology and operating in the 
unlicensed radio spectrum at 2.4GHz, and WEP encryption for security. 802.11b 
networks are also referred to as Wi-Fi networks. 
 
802.11g - specification for wireless networking at 54 Mbps using direct-sequence 
spread-spectrum (DSSS) technology, using OFDM modulation and operating in the 
unlicensed radio spectrum at 2.4GHz, and backward compatibility with IEEE 802.11b 
devices, and WEP encryption for security. 
 
Ad-hoc Network - An ad-hoc network is a group of computers, each with a wireless 
adapter, connected as an independent 802.11 wireless LAN. Ad-hoc wireless 
computers operate on a peer-to-peer basis, communicating directly with each other 
without the use of an access point. Ad-hoc mode is also referred to as an 
Independent Basic Service Set (IBSS) or as peer-to-peer mode, and is useful at a 
departmental scale or SOHO operation.   
 
DSSS  (Direct-Sequence  Spread  Spectrum)  - DSSS generates a redundant bit 
pattern for all data transmitted. This bit pattern is called a chip (or chipping code). 
Even if one or more bits in the chip are damaged during transmission, statistical 
techniques embedded in the receiver 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. However, to 
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