User's Guide

9. When you select a port which is in cascade connection on the master side screen, or select a
port on slave side screen and press the <Shift> key, 14 characters are displayed on master
side and 5 characters on slave side. Releasing the <Shift> key will return to the
original
display.
Left: When a port in cascade connection is selected on master side
Right: When a port is selected on slave side
NOTE：While the Shift key is pressed, any other key entries are
disabled.
If nine or less characters are registered for slave side though up to 14
characters can be registered (lower five digits are blank, as shown in
example of port 2 in the figure above), the server name of the slave side
will not be displayed when the Shift key is pressed to display the server
name of master side.