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ACCULINK 316x DSU/CSU
H-4 January 1997 3160-A2-GB21-50
Using Async Terminal Screens
There are three types of async terminal screens.
• Menu screens list selections available through the
menu system.
• Input screens allow you to edit or change
information on a screen using screen function keys
(Table H-1) or keyboard keys (Table H-2).
• Display screens show the results from a data
collection operation or they display device-specific
information.
The async terminal supports character matching for
entering values in fields. For example, if the values for a
field can be DTE, NET, or PORT and you enter a ‘D’
and press Return (Enter), then the field automatically
populates with the value DTE.
Once an operation is initiated, status messages appear
in the last row of the screen. These include Please Wait
(when a command takes longer than five seconds) and
Command Complete.
Table H-1
Screen Function Keys
Screen Function Key
Usage
M (MainMenu) Returns to the Main Menu
screen.
E (Exit) Terminates the async
terminal session.
R (Refresh) Updates the screen with
the current information.
U (PgUp) Pages up to the previously
displayed page of
information.
D (PgDn) Pages down to the
previously displayed page
of information.
S (Save) Stores changes in
nonvolatile memory.
Table H-2
Keyboard Keys
Keyboard Key
Usage
Ctrl-a Moves the cursor between
the Screen area and the
Screen Function Keys
area.
Esc Returns to the previous
screen.
Tab Moves the cursor to the
next field.
Back (Shift) Tab or Ctrl-k Moves the cursor to the
previous field.
Backspace Moves the cursor one
position to the left or to the
last character of the
previous field.
Spacebar Selects the next valid value
for the field.
Delete Deletes the character that
the cursor is on.
Up Arrow key or Ctrl-u Moves the cursor up one
field within a column on the
same screen.
Down Arrow key or Ctrl-d Moves the cursor down
one field within a column
on the same screen.
Right Arrow key or Ctrl-f Moves the cursor back one
character to the right.
Left Arrow key or Ctrl-b Moves the cursor back one
character to the left.
Ctrl-l Redraws the screen
display.
Return (Enter) Accepts entry.
NOTE
Some Telnet applications may
require the use of Ctrl-u, Ctrl-d,
Ctrl-f, and Ctrl-b as an alternative
to the use of the Up, Down, Right,
and Left Arrow keys.