NEC SX Service And Reference Manual page 16

Put the unit in Suspend mode when you need to be away from your
system for a short period of time and want to return to where you left off.
Suspend mode shuts down all devices in the system while retaining data
and system status. Use the
manual save-to-file. Press the Smart Power switch (Power/Sleep button)
to resume from a save-to-file.
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Keyboard — 85 keys with the standard QWERTY-key layout. (Models
purchased outside of the U.S. and Canada ship with country-specific
keyboard layouts.)
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NEC VersaGlide — The NEC VersaGlide works like a standard
computer mouse. Simply move your fingertip over the VersaGlide to
control the position of the cursor. Use the selection buttons below the
VersaGlide to select items or actions.
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Stereo Speakers — provide stereo sound for your multimedia
presentations or listening pleasure. The built-in sound system also
supports 3D sound, which simulates the latest surround-sound
technology.
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System Power LEDs — keeps you informed of the system's current
power status.
1-6 System Overview
System power LEDs
A - Power Status LED
C - Microphone
Power Status LED — lights green to indicate the power is on or
yellow/amber to indicate low power condition when operating under
battery power.
Note:
When both the primary and a secondary
battery are installed, the power status LED indicates the
total (primary plus secondary) battery status.
key combination to initiate a
Fn Power/Sleep
B - Battery Charging LED
D - IR Port