Chapter Three
Operation
Page 27
© April 2007
an existing LAN, then you need to change the IP addresses to match your LAN
addresses.
•
A “System Generator String” - refer to section 3.4.1 below
•
Radio encryption selection - None, 64-bit Proprietary or 128-bit AES - refer section
3.4.2 for more information on this.
After configuring, select “Save to Flash and Reset”.
3.4.1
System Generator String
The System Generator String is an alpha-numeric string of between 1 and 31 characters.
Characters can be any ASCII alpha-numeric character (except the “null” character). The
805U-E uses this string as an input to pseudo-random algorithms to create the following
parameters:
A system address, which is transmitted as part of each wireless data message to
differentiate one wireless system from another,
Encryption keys for the data encryption method selected
Select a hop-set. The spread spectrum radio in the 805U-E continually changes
frequency, or hops to different frequencies, according to a “hop-set” pattern. There are 8
different hop-set patterns available. Different hop-sets are automatically selected to
minimize any radio interference from other 805U-E systems.
The System Generator String should be a unique data string - for example, BLUEpencil93
The same System Generator String should be entered in each module operating in the same
system.
3.4.2 Radio Encryption
Wireless data can be encrypted to provide security. If you do not require this feature, do
nothing - the default configuration is “no encryption”. The 805U-E operation is faster
without data encryption.
If you do require this security feature, you have a choice of 64-bit proprietary encryption or
128-bit AES encryption. AES is a superior encryption scheme accepted by most users as one
of the most secure encryption schemes available. For users who prefer not to use a “public-
domain” encryption scheme, a proprietary scheme is available. Both encryption methods
provide an extremely high level of security of the wireless data.
3.5
Network Configuration
After configuring the Quick Start page, you can view or modify Ethernet network parameters
by selecting the “Network” menu. When prompted for username and password, enter “user”
as the username, and the previously configured password in the password field.
If IP address or password has been forgotten, the Factory Default switch may be used to
access the existing configuration. Refer to section 3.3 above.
After the addresses are configured, it is important to save the configuration by selecting
“Save and Reboot”.
