User manual

121 Version 1.0
The 802.11g and 802.11b specification supports up to 14 overlapping Channels for radio
communication. But only 11 Channels are supported in the United States and therefore
built-in on MT4205. To minimize interference, configure each of MT4205 to use
Non-overlapping channels. Non-overlapping channels have 25 MHz separation
beginning at the first allowed channel for the country (for the US and most of Europe,
channel 1, 6 & 11 are used.)
Make sure that MT4205 sharing the same Channel (or Channels close in number) is as
far away from each other as possible, based on the results of your site survey of the
facility. You can find the site survey utility in MT4205’s setup CD. By default, the channel
is 6.
6. Hide SSID
This term is used to increase the security level. Check it to hide SSID information
against the wireless clients that are sniffing radio. By default, this option is inactive.
7. TxPreamble
The default TxPreamble setting is Long (if you use high traffic networks should use the
shorter preamble type)
8. Beacon Interval
Beacons are packets sent by an access point to synchronize a wireless network. Specify
a beacon interval value. Default (100) is recommended.
9. RTS Threshold
This value should remain at its default setting of 2346. If you encounter inconsistent data
flow, only minor modifications to the value range between 256 and 2346 are
recommended
10. Authentication Mode
Four authentication methods are supported: Open and Shared. Select Open, your
wireless network would be intruded by anonymous. Not only your network bandwidth
would be shared; but also transmitting data might be intercepted. Select Shared
function and it can be taken effect.
11. Encrypt Type - WEP
There are two types of encrypt type can be selected, including WEP and WPA.
WEP Encryption: Enabling WEP can protect your data from eavesdroppers. If you do
not need this feature, select ―None‖ to skip the following setting. MT4205 supports both
64-bit and 128-bit encryption using the Wired Equivalent Privacy (WEP) algorithm.
Select the type of encryption you want to use (64 or 128 bit) and configure one to four
WEP Keys. The ―1280bit‖ method is more secure than the ―64-bit‖.
Key Type: For 64bits WEP key, either 5 ASCII characters or 10 hexadecimal digitals
leading by 0x can be entered. For 128bits WEP key, either 13 ASCII characters or 26
hexadecimal digits leading by 0x can be entered.