User's Manual

4
 Introduction
Revision 0.2
Note that a ―short press‖ shall be defined as any debounced
keystroke less than two seconds in duration. A ―long press‖ shall
be defined as any debounced keystroke that is two seconds in
duration or greater. A long press shall not end until the button is
released (i.e., an extended long press shall not be interpreted as
multiple keystrokes).
An ―extra long press‖ shall be defined as a long press that
continues for more than five seconds. Long press actions are
selected to avoid accidental invocation (power on/off,
connect/disconnect). Extra long press actions are selection to
ensure intentional action by the user (hardware enforced power
down).
Short Press
UT State
Result
Scroll button
On, menu item
Scroll to next option of displayed menu item
Back button
On, menu item
Goes up one level in menu
Accept button
On, pointing
Exit pointing, start normal operation
On, status display
Enter menu
On, menu item
Confirm selected menu item
User button
On
Select the next user terminal equipment
connected to the UT (.101, .102, …)
Long Press
UT State
Result
Scroll button
On, status display
Toggle WiFi on/off (save state in NVRAM)
Back button
On, menu item
Cancel menu action, return to status display
Accept button
Off
Turn on, LCD lamp test confirms button action
On
Turn off, UT ignores additional power button
input until power down sequence is complete
User button
On
Toggle audio pointing tone on/off
Special Action
UT State
Result
Accept and User buttons,
simultaneous long press
Off
Go to minimum boot mode
Accept button, extra long press
On
Hardware enforced power down