1
AC power cord connector
2
DVI connector
3
HDMI connector
4
VGA connector
5
Audio Line-in
6
Audio Line out
Monitor Specifications
Power Management Modes
If you have VESA's DPMS™ compliance display card or software installed in your PC, the monitor can automatically reduce its power consumption when not in use. This is
referred to as Power Save Mode. If input from a keyboard, mouse or other input devices is detected by the computer, the monitor will automatically "wake up". The following
table shows the power consumption and signaling of this automatic power-saving feature:
ST2420L/ST2421L
VESA Modes Horizontal
Sync
Vertical Sync Video Power
Indicator
Power Consumption
Normal operation Active Active Active White 30 W (maximum)
20 W (typical)
Active-off mode Inactive Inactive Blanked Amber Less than 1 W
Switch off - - - Off Less than 0.5 W
NOTE: Zero power consumption in OFF mode can only be achieved by disconnecting the main cable from the
monitor.
Pin Assignments
VGA Connector
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