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Remote LAN Wakeup
Remote LAN Wakeup capability is a key feature of
a centrally managed PC environment. This
technology allows networked PCs to be powered up
and managed from a central location at any time. To
utilize Remote LAN Wakeup, three elements are
required:
Desktop management software that can send a
“wake-up” packet to the PC.
A Wake-On-LAN enabled PC motherboard that
can supply low-level auxiliary power to a
network Adapter when the PC is powered off.
A Wake-On-LAN network Adapter that can
recognize a wake-up packet and signal the PC to
power up.
A Wake-On-LAN enabled PC is never completely
powered off. It maintains a low-level auxiliary
power supply to the motherboard. The 3-wire
Wake-On-LAN cable provides one line for the
network Adapter auxiliary power and one line for
the Adapter wake-up signal, the other line is ground.
(If you have a PCI 2.1 slot, then you do not need the
Wake-On-LAN cable). Even if the PC is powered
off, the network Adapter is always active and
monitoring the network. When a wake-up packet is
detected, the Adapter signals the motherboard to
power up the PC. With the PC powered on,
maintenance and other support tasks can be
performed.