Motorola 68P02958C00-B - Manual (Page 123)

Network Configuration
5-66
To specify that the link is authenticated, check the Authenticated box to the right of the Link
ID.
Next, specify the Site ID of the server which will perform synchronization for all the RTUs on
the link. If the RTU is a server, you will specify its Site ID for all the authenticated links
connected to it. If an RTU is a client, its Site ID cannot be entered into the Server ID field. If
an RTU is a client/server, specify its Site ID for the appropriate links for whom it will act as a
server.
Each radio zone will have ONE Server ID. The first appearance of a radio zone in the network
configuration file is the RTU server of that zone. That radio zone will appear first in the list of
links in the Links Authentication Information window (i.e. if RADIO4/1 is the server, it will
appear before RADIO4/2 and RADIO4/3 in the list.) If you enter a Server ID for another link
(e.g. RADIO4/3), it will not be saved. The next time you open the Links Authentication
Information window, that Server ID will not appear.
If the RTUs are not attached to a server, but have another clock source (e.g. GPS attached to
each site), the Server ID is left at zero. Close the Link Authentication Information window
and the authenticated link will appear in a gray background.
If the RTUs are attached to a server, you must enter a Server ID. Double-click anywhere in the
entry in the Links Authentication Information window. The Define Keys and Aliases dialog
(see below) will open. Enter the Site ID of the server in the Server ID field.
Next, define the authentication keys/key aliases to be used for validating the timestamp in the
dataframe. If you close the Define Keys and Aliases dialog using the OK button, the Has
Keys/Has Aliases buttons to the right of the entry in the Links Authentication Information will
be marked with a check. When you close the Links Authentication Information, the
authenticated link will appear in a red background.