Introduction; Acpi Power Management; Flow Control - D-Link DFE-550FX User Manual

D-Link DFE- 550FX Adapter

Introduction

Thank you for choosing the D-Link DFE-550FX 100-Mbps
Fiber-optic Adapter. This introduction provides a general
description of the newer networking technologies found on the
DFE-550FX.

ACPI Power Management

The DFE-550FX adapter complies with the Advanced
Configuration and Power Interface 1.0 (ACPI) specifications.
ACPI is a new open industry specification providing power
management support systems through hardware and operating
system cooperation. ACPI specifies how a computer's BIOS,
operating system, and peripherals coordinate power usage. With
ACPI, the operating system reduces motherboard and peripheral
device power needs by activating devices only when they are
needed.
802.3x Flow Control
The DFE-550FX implements IEEE 802.3x compliant flow
control for full duplex, which provides traffic management
functions for full duplex operation. Flow control allows for
enhanced full duplex operation with switches. If the switch's
data buffer is about to overflow when operating at full duplex, a
Pause frame will be transmitted to the DFE-550FX. The ensuing
idle time keeps the buffer from overflowing and prevents data
from being lost. This enhancement can improve network
throughput and prevent lost data, helping the network achieve
optimal performance.
In order for 802.3x Flow Control to operate, your switch or hub
must support this feature. In addition, some adjustments to the
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