ZyXEL Communications P-6600HW-Tx v3 Manuale Utente

 Chapter 9 Wireless LAN

P-660HW-Tx v3 User’s Guide

To configure advanced wireless settings, click the Advanced Setup button in the General 
screen. The screen appears as shown.

Figure 89   Advanced

The following table describes the labels in this screen. 

Table 50   Wireless LAN: Advanced

Wireless Advanced Setup

RTS/CTS 

Threshold

Use RTS/CTS to reduce data collisions on the wireless network if you have wireless 

clients that are associated with the same AP but out of range of one another. When 

enabled, a wireless client sends an RTS (Request To Send) and then waits for a 

CTS (Clear To Send) before it transmits. This stops wireless clients from 

transmitting packets at the same time (and causing data collisions).
A wireless client sends an RTS for all packets larger than the number (of bytes) that 

you enter here. Set the RTS/CTS equal to or higher than the fragmentation 

threshold to turn RTS/CTS off.
Enter a value between 0 and 2432.

Fragmentation 

Threshold

This is the maximum data fragment size that can be sent. Enter a value between 

256 and 2432.

Output Power

Set the output power of the ZyXEL Device in this field. This control changes the 

strength of the ZyXEL Device's antenna gain or transmission power. Antenna gain 

is the increase in coverage. Higher antenna gain improves the range of the signal 

for better communications. If there is a high density of APs within an area, decrease 

the output power of the ZyXEL Device to reduce interference with other APs.
The options are Maximum, Middle and Minimum.

Preamble

Select Long preamble if you are unsure what preamble mode the wireless adapters 

support, and to provide more reliable communications in busy wireless networks. 
Select Short preamble if you are sure the wireless adapters support it, and to 

provide more efficient communications.
Select Dynamic to have the ZyXEL Device automatically use short preamble when 

wireless adapters support it, otherwise the ZyXEL Device uses long preamble.

802.11 Mode

Select 802.11b Only to allow only IEEE 802.11b compliant WLAN devices to 

associate with the ZyXEL Device.
Select 802.11g Only to allow only IEEE 802.11g compliant WLAN devices to 

associate with the ZyXEL Device.
Select Mixed to allow either IEEE802.11b or IEEE802.11g compliant WLAN 

devices to associate with the ZyXEL Device. The transmission rate of your ZyXEL 

Device might be reduced.

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