Printronix ProLine 5 Series Manual page 149

Set Sharing
This option allows character sets to be shared between the active LP+ protocol
and the active IGP emulation. If CT is installed and active, selecting a character
set in the CT sets that character set in the active IGP and LP+ protocols. (These
changes will not be visible on the front panel.) If Set Sharing is not selected, only
the LP+ will share the CT's character set.
Switching host interfaces from CT to Centronics when the Set Sharing is enabled
will cause the LP+ character set to be set to the same character set of the active
IGP, if possible.
In a non–CT system, changing characters sets in LP+ causes the active IGP to
change to the same character set if the selected set exists in IGP. If the active
IGP has no access to the selected set, no changes are made. Selecting a new
character set in the active IGP causes the LP+ to change to the same character
set if the selected character set exists in the active LP+ protocol. Not all sets are
shared between emulations in the Standard group of character sets. As a result,
selecting a set in the Standard group of LP+ or either IGP emulation may or may
not cause the other emulation to have the same set.
4–96 Configuration Menus