40 | About the Radio
Aprisa SRi User Manual 1.1.0
Static IP Router
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Human Error Free
To ensure correct operation, the Aprisa SRi router base station alerts when one (or more) of the devices is
not configured for router mode or a duplicated IP is detected when manually added.
When the user changes the base station IP address / subnet, the base station sends an ARP unsolicited
announcement message and the remote radios auto-update their routing table accordingly. This also allows
the router that is connected to the base station to update its next hop IP address and its routing table.
When the user changes the remote radio IP address / subnet, a re-registration process in the base station
then auto-updates its routing table accordingly.
Terminal Server - Transition to Converged Ethernet / IP Network
Customers that are transitioning their SCADA network to an Ethernet / IP SCADA network, can simultaneously
operate their legacy serial RTUs, not as a separate serial network to the new Ethernet / IP network, but as
part of the Ethernet / IP network, by using the terminal server feature.
The Aprisa SRi terminal server is an application running in the radio that encapsulates serial traffic into
Ethernet / IP traffic. For SCADA networks, this enables the use of both serial and Ethernet / IP RTUs within
an Ethernet / IP based SCADA network.