HP T5730 TeemTalk 6.0 for Windows User Manual - Page 372

PT250 Emulation Displaying Alternate Characters PT250 mode uses two character sets, Standard and Alternate, to display characters. Both sets incorporate all the characters contained in the ASCII (7-bit or lower half) and PT250 Additional (8-bit or upper half) character set tables. When the emulation is in 7-bit mode, only the lower half (i.e 7-bit part) of the Standard and Alternate character sets can be used, so the ASCII characters in the Alternate character set are replaced by the PT250 Additional characters, which are then treated as 7-bit characters. You can toggle between Standard and Alternate character set mode by pressing the keys Alt + A. This emulates the function of the Char Set key found on the PT250 keyboard, enabling you to display characters from the Additional character set which are not available for the keyboard nationality you have selected in setup. The following table lists the Standard ASCII characters in the left column with their equivalent Additional characters in the right column of each block. Press the key bearing the ASCII character to generate the Additional character when you are in Alternate character set mode. 350 Displaying Alternate Characters