The keyboard (Figure 3-1) has four groups of keys, four indicator lights, and
two audible indicators. There are 15 models of the keyboard available (Appendix
D). This chapter shows the North American/United Kingdom keyboard. The
keys are grouped by function.
Main keypad
Editing keypad
Numeric keypad
Top-row function keys
Figure 3-1 KeyboardFigure 3-2 Main Keypad
Main Keypad
This keypad (Figure 3-2) is similar to a standard typewriter keyboard. The main
keypad has the following special function keys.
Tab
The Tab key sends a horizontal tab, which normally moves the
cursor to the next tab stop on the line. You can use the Tab Set-Up
screen (Chapter 4) to select tab stops.
Ctrl
Holding down the Ctrl key and pressing another key sends a control
code to the system. For example, Ctrl-Z means to hold down
CTRL and press the Z key. A control code tells the system to perform
a special function.
Lock
If you use the "Caps Lock" setting in the Keyboard Set-Up
screen (Chapter 4), pressing Lock makes the alphabetic keys send
uppercase characters. If you use the "Shift Lock" setting,
pressing Lock makes all the keys send the top character on the key.
When you release Lock, all keys send their bottom character.
Shift
Holding down the Shift key and pressing another key sends the
uppercase (or top) character on the key.
In some cases, you use Shift with another key to perform a local
function. For example, Shift-Print Screen means to hold down
Shift and press the Print Screen key.
Return
The Return key sends either a carriage return or a carriage return
and line feed (selected in the General Set-Up screen, Chapter 4).
Pressing Return usually moves the cursor to the next line. Many
applications use Return to indicate the end of a command.
(Delete)
The key sends either a delete (DEL) character or a
backspace (BS) character (selected in the Keyboard Set-Up screen,
Chapter 4). Many applications use to erase one character to
the left of the cursor. Pressing Ctrl- sends a CAN (cancel)
character.
Compose Character
This key lets you generate characters that do not appear
as standard keys on your keyboard. See Chapter 5.
Figure 3-3 Editing and Numeric Keypads
Editing Keypad
The editing keypad (Figure 3-3) has six editing keys and four arrow keys.
Pressing an arrow key normally moves the cursor in the direction of the arrow.
For example, pressing the key moves the cursor down one line. The function
of the editing keys depends on the software application you use. See your application
manuals for details.
Numeric Keypad
Numeric keypad keys (Figure 3-3) often have functions assigned by your application
software -- especially PF1, PF2, PF3, and PF4. See your application
manuals for details. Some applications let you use the numeric keypad to enter
numeric data as you would with a calculator.
Enter
The Enter key normally works like the Return key. That is, Enter
sends a carriage return or a carriage return and line feed (selected
in the General Set-Up screen, Chapter 4). You also use Enter to
change set-up feature settings and select set-up action features.
Figure 3-4 Top-Row Function Keys and Indicator Lights
Top-Row Function Keys
The first five top-row keys on the left (Figure 3-4) have predefined functions,
described below. You cannot change these functions. Your application software
can define the function of the remaining top-row keys. See your application
manuals for details.
Hold Screen
This key freezes data on the screen, so you can read it. When
you press Hold Screen, the Hold Screen indicator turns on.
Pressing Hold Screen again releases the screen, so new data can
appear. The Hold Screen indicator turns off.
Print Screen
This key sends text from the screen to a printer connected to
the terminal.
Pressing Ctrl-Print Screen turns auto print mode on or off. See
"Auto Print Mode" in Chapter 6.
Set-Up
This key lets you enter or leave set-up (Chapter 4).
F4
This key is disabled.
Break
This key works alone or with other keys to perform functions that
affect communication between your terminal and system. You can
disable the Break function in the Keyboard Set-Up screen (Chapter
4).
In some applications, pressing Break ends communication
with your system.
Pressing Shift-Break ends communication with a modem.
Pressing Ctrl-Break sends the answerback message to the
system. See the Keyboard Set-Up screen (Chapter 4).
F11 (ESC)
F11 is a function key often defined by application software.
In VT100 and VT52 modes, F11 sends an escape (ESC) character.
F12 (BS)
F12 is a function key often defined by application software.
In VT100 and VT52 modes, F12 sends a backspace (BS) character.
F13 (LF)
F13 is a function key often defined by application software.
In VT100 and VT52 modes, F13 sends a line feed (LF) character.
Indicator Lights
The keyboard has four indicator lights (Figure 3-4).
Hold Screen
Turns on or off when you press the Hold Screen key.
Lock
Turns on or off when you press the Lock key.
Compose
Turns on when you are typing a compose sequence (Chapter 5).
Wait
Turns on when the keyboard is locked (cannot send data). You can
clear a locked keyboard by selecting the Clear Comm feature from
the Set-Up Directory screen (Chapter 4).
Audible Indicators
The keyboard has two audible indicators, a keyclick and a bell. You can use a
margin bell, warning bell, or both. You select the keyclick and bell setting from
the Keyboard Set-Up screen (Chapter 4).
Keyclick
All keys that send a code or perform a function make a clicking
sound when pressed, except under the following exceptions.
You press Shift or Ctrl. These keys never make a keyclick
sound.
The Wait indicator is on. No keys can make a keyclick sound.
You turn off the Keyclick set-up feature.
Bell
The margin bell sounds when the cursor is eight characters from
the right margin.
The warning bell tone sounds for any of the following conditions.
During the power-up self-test
When the terminal receives a bell (BEL) character from the
system
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