4
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 of the day or night. To
employ Remote LAN Wakeup, three elements are
required:
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Desktop management software that can send a
“wake-up” packet to a PC.
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A Wake-On-LAN enabled PC motherboard that can
supply low-level auxiliary power to a network card
when the PC is powered off.
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A Wake-On-LAN network card 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 card auxiliary
power and one line for the card wake-up signal, the other
line is ground (if you have PCI 2.2 slot not need the
Wake-On-LAN cable). Even if the PC is powered off
network card is always active and monitoring the network.
When a wake-up packet is detected, the card signals the
motherboard to power up the PC. With the PC powered
on, maintenance and other support tasks can be
performed.
