Intel DZ77RE-75K Technical Product Specification - Page 31
LAN Subsystem Software, 9.1.3, RJ-45 LAN Connectors with Integrated LEDs
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Product Description 1.9.1.2 LAN Subsystem Software LAN software and drivers are available from Intel's World Wide Web site. For information about Obtaining LAN software and drivers Refer to http://downloadcenter.intel.com 1.9.1.3 RJ-45 LAN Connectors with Integrated LEDs Two LEDs are built into the RJ-45 LAN connectors (shown in Figure 5). Item A B C D Description Link LED (green) Data Rate LED (green/yellow) Link LED (green) Data Rate LED (green/yellow) Figure 5. LAN Connectors LED Locations Table 6 describes the LED states when the board is powered up and the LAN subsystems are operating. Table 6. LAN Connector LED States LED LED Color LED State Link Green Off On Blinking Data Rate Green/Yellow Off Green Yellow Condition LAN link is not established. LAN link is established. LAN activity is occurring. 10 Mb/s data rate is selected. 100 Mb/s data rate is selected. 1000 Mb/s data rate is selected. 31