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Switch
FORM LENGTH
SPEED
SPACING
AUTO LF
PARITY
DUPLEX
CLEAR
Figure
2-3.
Control Panel
Table
2-2.
Control Panel
Function
This is a 12-position rotary switch used in conjunction with the SET TOF switch on
the front panel. This switch is set to indicate the size of the form being used and then
the SET TOF switch is depressed to load this value into the HyTerm's memory. (Make
sure the SCRO LL switch is off.) Form length can be one line, (1/6 inch) or 3, 3.5, 4,
5.5, 6, 7, 8, 8.5, 11, 12, or 14 inches. This switch must be set to correspond with the
size of form being used in order to allow form feeds and absolute vertical tabs to
operate properly. The setting of this switch is also loaded into memory automatically
at power on.
This is a three-position toggle switch that selects the data communications transmit/
receive speed of 10, 15, or 30 characters per second. It must be set according to
communications network requirements. If the HyTerm is wired for 120 cps speed, this
switch is non-functional.
This two-position toggle switch selects horizontal spacing of either 10 or 12 characters
per inch. If optional horizontal spacing (see 3.5.3) has been employed, this switch is
non-functional until after a Clear operation is performed.
When this switch is on, each carriage return also causes a line feed (paper moves up one
line). When off, the carriage return merely moves the carriage back to the left margin,
but the print head stays at the same line: a separate Line Feed operation is required to
move the paper.
This is a three-position toggle switch that selects the method of parity checking to be
used on each incoming character, and the method of parity-bit generation to be used
on transmitted characters. Parity is not checked in MAR
K
position.
This two-position switch selects half- or full-duplex data communications. In
half-duplex, keyboard data is both transmitted and automatically printed on the
printer. In full-duplex, keyboard data is transmitted only: it will be printed only if
"echoed" back by the host computer. In full-duplex, the only data printed is that
received over the communications link.
NOTE
When the optional current-loop interface is used, this
switch must always be in the FULL position,
regardless of the mode of operation.
This pushbutton provides a general reset of the HyTerm electronics. This function is
also accompl ished at power-on.
2-3
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