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Page 19-13GLOSSARY
Two-trigger A type of pseudo transparency that uses
a sequence of two normally printable
characters as the trigger, and which is
ended with a terminator.
U
UDK User-defined key. Feature used in
Xerox laser printers to define a
substitute escape character.
V
VCS Vertical channel select.
Vertical channel select An SCS command that the ULTRA
outputs as one or more CR/LF
sequences.
Vertical Tab Moves the presentation position down
to the next vertical tab stop.
VS Virtual system.
VT Vertical tab.
VTAM Virtual telecommunications access
method.
W
Word length The number of data bits in a word.
X
XDPM Xerox Decentralized Print Mode.
Xerox A large manufacturer of computers,
printers, peripherals and other
electronic equipment.
Xerox 36 Hex transparency A form of transparency used by some
Xerox applications in which the trigger
is X'36.'
XES The native print mode for Xerox 2700,
3700, 4030, 4045 and 4213 printers.
Also available on 4235 printers in
XDPM mode.
XON/XOFF Serial communication handshake
protocol using ASCII DC1/DC3