MAXDATA PLATINUM 110, System Manual

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20 Server Description 21 MAXDATA PLATINUM 220 Server
Wake-up Devices and Events
Table 8 provides an overview of the devices or events that can wake the computer from specific
states.
Table 8. Wake-up Devices and Events
These devices/events can wake up the computer… …from this state
Power button S1, S3, S4 (Note 1), S5
RTC alarm S1, S3, S4 (Note 1), S5
LAN S1, S3, S4 (Note 1), S5
PCI via PME# signal S1, S3, S4 (Note 1), S5
Resume on Ring (back panel Serial Port A) S1, S3
USB S1, S3
PS/2 S1, S3
Notes:
1. For LAN and PME#, S5 is disabled by default in the BIOS Setup program. Setting this option to
Power On will enable a wake-up event from LAN in the S5 state.
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NOTE
The use of these wake-up events from an ACPI state requires an operating system that provides full
ACPI support. In addition, software, drivers, and peripherals must fully support ACPI wake events.
LAN Wake
LAN wake capabilities enable remote wake-up of the computer through a network. The LAN subsystem
PCI bus network adapter monitors network traffic at the Media Independent Interface. Upon detecting
a Magic Packet frame, the LAN subsystem asserts a wake-up signal that wakes up the computer
from ACPI S1, S3, S4, and S5 state.
Depending on the LAN implementation, the S875WP1-E server board supports LAN wake capabilities
with ACPI in the following ways:
• The PCI bus PME# signal for PCI 2.2 compliant LAN designs.
• The onboard LAN subsystem.
PCI via PME# Wake-up Support
When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S1, S3, S4, or
S5 state (with Wake on PME enabled in BIOS).
Resume on Ring
Resume on Ring enables telephony devices to access the computer when it is in a power-managed
state. The operation of Resume on Ring wakes the system from the S1 or S3 sleep states when a
signal is sent to the serial port at the rear or the chassis or to an internally installed modem. Resume
on ring can be summarized as follows:
• Resumes operation from ACPI S1 or S3 states.
• Requires only one call to access the computer.
• Detects incoming call similarly for external and internal modems.
• Requires modem interrupt be unmasked for correct operation.