Turning On The Power Using The Lan - Hitachi HF-BX1000 Instruction Manual

3. OPERATION

3.6.2 Turning on the power using the LAN

1. Insert the plug of the power cord into an outlet.
2. Send a Magic Packet™ frame to the built-in LAN adapter in the equipment. When the
built-in LAN adapter receives a Magic Packet™ frame, the power for the equipment is
turned on.
To turn on the power to the equipment through LAN (to use the WOL function), the
equipment must have been powered off in the shutdown process.
The built-in LAN adapter in the equipment is compliant with WfM 2.0 (*1) to support the
Magic Packet™ technology. Because of this, the power for the equipment can be turned on
when a special data packet called a "Magic Packet™ frame" (*2) is received at the built-in
LAN adapter.
A program for transmitting a Magic Packet™ frame does not come with the equipment. Use
a commercially available program for to transmit the Magic Packet™ frame.
(*1) Wired for Management (WfM) is a guideline regarding the hardware specifications
proposed by Intel Corporation for managing PCs on a network.
(*2) The Magic Packet™ technology has been proposed by AMD, Ltd. and can be starting a
PC on a network from a remote device.
< NOTE >
• If you turn off the power by pressing the power switch for at least four seconds,
you cannot use WOL the next time. When you turn off the power by pressing
the power switch for at least four seconds, turn on the equipment by pressing
the power switch and go through the shutdown process to turn off the power.
<About the Magic Packet™ frame>
In a Magic Packet™ frame, the SOURCE ADDRESS, DESTINATION ADDRESS (the
MAC address of the receiver or the MULTICAST ADDRESS including the
BROADCAST ADDRESS), CRC, and the like must meet the basic requirements of the
LAN in use. The data in a Magic Packet™ frame consists of a sequence of 16 repetitions
of the MAC address of the node. This sequence can be anywhere in the packet but it must
follow a synchronization stream. The synchronization stream is defined as 6 bytes of 0xFF.
As long as the MAC address that repeats itself 16 times targets the address of the
equipment to be started, the device can receive a BROADCAST frame.
A Magic Packet™ frame is shown in the following figure.
DA SA
Source Address
Destination Address
Arbitrary
FF...FF
data
Synchronization stream
(6 bytes of 0xFF)
Adr Adr Adr
...
16 repetitions of the
MAC address
3-6
Arbitrary
CRC
data