67 Chapter 7
7.2.1 Polling Network Architecture
If you want to use host PC to poll the serial devices, which connect to
EDG-4508+U/4516+U via Ethernet, you can use polling network
architecture.
Figure 7.12: Network Architecture-Polling
Figure 7.13: Flow chart-Polling Network
Host PC create TCP socket
Connect to
EDG-4508+U/ EDG-4516+U
Send data to
EDG-4508+U/ EDG-4516+U
Receive data from
EDG-4508+U/ EDG-4516+U
Disconnection