Intel DH55TC User Manual

Intel Desktop Board DH55TC Technical Product Specification
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1.12.3 RJ-45 LAN Connector with Integrated LEDs
Two LEDs are built into the RJ-45 LAN connector (shown in Figure 5).
Item Description
A Link/Activity LED (green)
B Link Speed LED (green/yellow)
Figure 5. LAN Connector LED Locations
Table 4 describes the LED states when the board is powered up and the LAN
subsystem is operating.
Table 4. LAN Connector LED States
LED LED Color LED State Condition
Off LAN link is not established.
On LAN link is established.
Link/Activity Green
Blinking LAN activity is occurring.
Off 10 Mbits/s data rate is selected or negotiated.
Green 100 Mbits/s data rate is selected or negotiated.
Link Speed Green/Yellow
Yellow 1000 Mbits/s data rate is selected or negotiated.

Intel DH55TC Specifications

Add-in Card Connectors

PCI Express 2.0 x16 transfer speed	8 GB/s
PCI Express 2.0 x1 transfer speed	250 MB/s
Conventional PCI connectors count	1

Front Panel USB Headers

USB 2.0 specification compliance	Yes
+5 V DC power on USB headers	Fused
USB Header 2 Pin 10 routing	HDD LED