Security Configuration; Figure 3-8 Security Configuration - Advantech ADAM-4570 User Manual

The functions are mainly to help users to build up a redundant
system with ease. The purpose of the "Host Idle Switch" is to
prevent system hung-up due to application program failure. If
the program fails, ADAM-4570S/4571S will cut off the
connection. Another application program or PC can then start
to access. Similarly, when a serial device or connection fails to
communicate with ADAM-4570S/4571S, the "Device Idle
Switch" function will automatically switch the communication
port from one to another, to keep it effectively in communication.

3.2.5 Security Configuration

Figure 3-8 Security configuration

Only configure the authorized IP
This option is enabled in order to protect all configuration
settings from being changed inadvertently.
Allow any IP to access
If this option is enabled, any PC can access data from this
EDG Series.
The specified IP which can access
If you do not want many PCs to have the access right, you can
limit at most 32 PCs to access data from this EDG Series.
40 Advantech EDG series User's Manual