Technical Product Specification

Intel
®
Server Board S5500BC TPS Functional Architecture
Revision 1.8 Intel order number: E42249-009 37
82567 Gigabit Network connector drive two LEDs located on each network interface connector
(NIC). The normal RJ45 link/activity LED at the right of the connector indicates network
connection when on and Transmit/Receive activity when blinking. These LEDs are be powered
from a Standby voltage rail. The speed LED at the left indicates 1000 Mbps operation when
amber; 100 Mbps operation when green; and 10 Mbps when off.
Table 12. NIC Status LED
Led Name
Voltage
resources
Color
Status
Description
LAN#1-
Link/Act
3V3Aux
Green
On
Link
Green
Blink
LAN Access (off when there is traffic)
Off
Disconnect
LAN#1-
Speed
3V3Aux
Green
On
Green, link speed is 100 Mbits/sec
Amber
On
Amber, link speed is 1000 Mbits/sec
Off
OFF, link speed is 10 Mbits/sec
LAN#2-
Link/Act
3V3Aux
Green
On
Link
Green
Blink
LAN Access (off when there is traffic)
Off
Disconnect
LAN#2
Speed
3V3Aux
Green
On
Green, link speed is 100 Mbits/sec
Amber
On
Amber, link speed is 1000 Mbits/sec
Off
Off, link speed is 10 Mbits/sec
3.5.1 Intel
®
82574L GbE PCI-E Network Controller
The Intel
®
82574L GbE PCI-E Network controller is a single, compact, low-power component
that offers a fully-integrated PCI-Express* x1 10/100/1000 GbE controller with Media Access
Control (MAC) and Physical Layer (PHY) port. The device is compliant with PCI Express* Base
Specification, Revision 2.0. The 82574L GbE PCI-E Network controller enables a single-port
implementation in a relatively small area, so it can be used for server and client configurations
as a LAN-on-Motherboard (LOM) design. You can also use the 82574L GbE PCI-E Network
controller in embedded applications such as switch add-on cards and network appliances. The
82574L GbE PCI-E Network controller provides one PCI Express* lane operating at 2.5 GHz
with sufficient bandwidth to support a 100 Mb/s transfer rate. 32 KB of on-chip buffering
mitigates instantaneous receive bandwidth demands and eliminates transmit under-runs by
buffering the entire outgoing packet prior to transmission. The Intel
®
82574L GbE PCI-E
Network controller supports the following features:
 Standard IEEE 802.3 Ethernet interface for 10BASE-T, 100BASE-TX, and 1000BASE-T
(802.3, 802.3u, and 802.3ab) applications
 NC-SI or SMBus connection to a Manageability Controller (MC)
 IEEE 1149.1 JTAG
 Support for PCI 3.0 Vital Product Data (VPD)