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46        ESP Serial Hub Installer/User Guide
If you changed the address information, it will not take effect until the ESP hub is rebooted (see 
Rebooting the Hub on page 51). If the IP address had not been previously set or the hub has been 
reinitialized, the hub reboots automatically.
Displaying or Changing Serial Port Attributes
You may display or change the attributes for one or all ESP hub serial ports. See Serial Port 
Attributes
 on page 28
 for more information.
To display or change serial port attributes for one or all ports:
1.
From the Top Menu, enter 
1
 to select Serial port attributes. The Port Selection Menu will 
be displayed.
2.
Enter the number corresponding to a port or 
0
 to select all ports.
If a single port was selected, the display contains the current values of the port’s attributes. 
If all ports was selected, the display contains the default values for the port attributes, 
which may differ from the current values for any port.
3.
You are prompted to modify each attribute. Enter 
y
 for yes or 
n
 for no.
If you choose to modify an attribute, a menu will be displayed (Table 3.10 on page 29 lists all 
valid and default values). Each attribute menu will contain a numbered list of valid values. 
Either enter the number corresponding to the desired value, or press 
Enter
 to leave the 
value unchanged.
4.
When the port attribute menus are completed, you are prompted to confirm the changes. 
Confirm or cancel the changes.
Warnings and errors
A warning will be displayed (but the change will be allowed) if hardware flow control is specified 
for a port that is not configured with the RS-232 interface. If the change was applied to all ports, the 
warning will indicate the affected ports.
Displaying or Changing Connection Methods
You may display or change the connection methods for one or all ESP hub serial ports. See Serial 
Port Connection Methods
 on page 15 for m
ore information.
To display or change the connection methods for one or all ports:
1.
From the Top Menu, enter 
2
 to select Serial port connection methods. The Port Selection Menu 
will be displayed.
2.
Enter the number corresponding to a port or 
0
 to select all ports.
If a single port was selected, the display contains the current values of the port’s connec-
tion method parameters. 
If all ports was selected, the display contains the default values for the connection method 
parameters, which may differ from the current values for any port.