User`s manual

11–36
Character Sets
DEC Technical Character Set
The DEC Technical Character Set contains Greek letters, mathematical
symbols, and logical symbols. Additionally, it contains characters that may
be used to construct larger mathematical symbols on character cell devices,
such as large integral and summation signs. Select this character set via the
control sequence, DECAUPSS, as described in Chapter 7.
The technical character set is output to the terminal via software that
responds to the ANSI/ISO Single Shift 3 (SS3) non–locking shift control
function. SS3 is already terminal–resident––just enter the hex value from
Table 11–23 to produce the appropriate character. The set has no duplicate
ASCII or DEC Supplemental characters. Eleven positions are reserved for
future standardization, including the corners, 20H and 7FH.
The printer conforms to the following:
• Responds to the escape sequence that determines the DEC Technical
Character Set. The printer cannot designate or invoke the DEC
Technical Character Set by default.
• Positions reserved for future standardization in the DEC technical set
are imaged as the error character (reverse question mark).
• Component characters are imaged so that adjacent component characters
form connected lines at all pitches.
• Selecting the DEC Technical Character Set forces the horizontal and
vertical pitch settings to be 10 cpi and 6 lpi regardless of the current
settings.
Table 11–23. DEC Technical Character Set
Hex Value Decimal Code Symbol Name
Greek:
044 068 Uppercase Delta
046 070 Uppercase Phi
047 071 Uppercase Gamma
04A 074 Uppercase Theta
04C 076 Uppercase Lambda
050 080 Uppercase Pi
051 081 Uppercase Psi
Continued