Global Sun Technology Inc WLUD2554-17A Manual De Usuario

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Product: 802.11a/g Wireless USB Dongle 
Model: WL UD 2554 17A
●Maximum Power Save – the USB Dongle consumes the least power and only 
operates when there is wireless network activity. 
●Power Save – the USB Dongle consumes the moderate level of power. 
Preamble: 
Select Long or Short Preamble type. Preamble is a sequence of bits 
transmitted at 1Mbps that allows the PHY circuitry to reach steady-state 
demodulation and synchronization of bit clock and frame start. Two different 
preambles and headers are defined: the mandatory supported Long Preamble 
and header, which interoperates with the 1 Mbit/s and 2 Mbit/s DSSS 
specification (as described in IEEE Std 802.11), and an optional Short Preamble 
and header (as described in IEEE Std 802.11b). At the receiver, the Preamble 
and header are processed to aid in demodulation and delivery of the PSDU. The 
Short Preamble and header may be used to minimize overhead and, thus, 
maximize the network data throughput. However, the Short Preamble is 
supported only from the IEEE 802.11b (High- Rate) standard and not from the 
original IEEE 802.11. That means that stations using Short-Preamble cannot 
communicate with stations implementing the original version of the protocol. 
Click “Apply” for the changes to take effect.   
 
3.3 Advanced 
This is the page where you configure advanced settings of your 108Mbps 
Wireless Network USB Dongle 
 
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