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:
Desktop management software that can send a
“wake-up” packet to a PC.
A Wake-On-LAN enabled PC motherboard that
can supply low-level auxiliary power to a
network card when the PC is powered off.
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 (included with certain models
only) provides one line for the network card
auxiliary power and one line for the card wake-up
signal, the other line is ground (if the motherboard
complies with PCI 2.2, you don’t need to install the
Wake-On-LAN cable). Even if the PC is powered
off, network card still receives power to maintain
the link status and monitoring the network. When a
wake-up packet is received, the card signals the
motherboard to power up the PC and maintenance
and other support tasks can be performed.
