Wol Setting; Introduction; System Requirements - Pc Compatible; B.1 Wol Setting - Advantech ARK-3403 User Manual

B.1

WOL Setting

B.1.1

Introduction

Wake on LAN (WOL, sometimes WoL) is an Ethernet computer networking standard
that allows a computer to be turned on or awakened remotely by a network message.
B.1.2

System requirements - PC Compatible

Wake on LAN (WoL) support is implemented on the motherboard of a computer.
Most modern motherboards with an embedded Ethernet controller support WoL with-
out the need for an external cable. Older motherboards must have a WAKEUP-LINK
header onboard and connected to the network card via a special 3-pin cable; how-
ever, systems supporting the PCI 2.2 standard coupled with a PCI 2.2 compliant net-
work adapter typically do not require a WoL cable as the required standby power is
relayed through the PCI bus.
PCI version 2.2 has PME (Power Management Events). What this means is that PCI
cards can send and receive PME via the PCI socket directly, without the need for a
WOL cable.
Laptops powered by the Intel 3945 chipset or newer (with explicit BIOS support)
allow waking up the machine using wireless (802.11 protocols). This is called Wake
on Wireless LAN (WoWLAN).
Wake on LAN must be enabled in the Power Management section of the mother-
board's BIOS. It may also be necessary to configure the computer to reserve power
for the network card when the system is shutdown.
In addition, in order to get WOL to work it is sometimes required to enable this feature
on the card. This can be done in Microsoft Windows from the properties of the net-
work card in the device manager, on the "Power Management" tab. Check "Allow this
device to bring the computer out of standby" and then "Only allow management sta-
tions to bring the computer out of standby" to make sure it does not wake up on all
network activity.
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