Acer X241W Service Manual page 35

LED Definition
The system equips one dual color (blue/amber) led to indict system status and defined as
bellows:
LED Color
Green
Amber
Dark
LOGO:
When the monitor is power on, the LOGO will be showed in the center, and disappear slowly.
HOW TO OPTIMIZE THE DOS-MODE
Plug and play
Plug & play DDC2B feature
This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the
monitor to inform the host system of its identity and, depending on the level of DDC used, communicate
additional information about its display capabilities. The communication channel is defined in two levels, DDC2B.
The DDC2B is a bi-directional data channel based on the I
over the DDC2B channel.
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System Status
System in normal operation mode
System in power-saving mode
System in power-off mode
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C protocol. The host can request EDID information