NEC LT240 - Manual (Page 106)

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USING ON-SCREEN MENU
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Menu Descriptions & Functions
WEP (for Wireless only)
Select this option whether using the WEP (Wired Equivalent Privacy)
key for encryption or not. To use encryption, specify WEP key.
Disable ............ Will not turn on the encryption feature. Your communi-
cations may be monitored by someone.
64bit ................ Uses 64-bit datalength for secure transmission.
128bit .............. Uses 128-bit datalength for secure transmission. This
option will increase privacy and security when com-
pared to use of 64bit datalength encryption.
NOTE: The WEP settings must be the same as communication devices such as PC
or access point in your wireless network. When you use WEP, your image trans-
mission speed will slow down.
Key Select:
Selects one key from the four keys below when selecing [64bit] or [128bit]
in [WEP].