AOC-SIMSO/SIMSO+ User's Guide 2.2.4 LED Descriptions and Pin Definitions #7 (D1) Heartbeat LED Indicator Heartbeat LED (D1), located on the front side of the AOC-SIMSO(+) card, indicates the functionality and activity of the add-on card. The blinking of the Heartbeat LED indicates that the AOC-SIMSO(+) is ac tive. However, when the Linux OS and the drivers are being loaded after each AC power-on or reset, the Heartbeat LED is off for about a minute. Then, the Heartbeat LED will be on again to indicate that the AOC-SIMSO(+) is active. See the table on the right for details.
#8 Dedicated LAN LED Indicators There are two LAN LED Indicators located on the (Dedicated) LAN port on the AOC- USB2RJ45 Add-On Card. The green LED indicates activity, while the power LED may be green or off to indicate the speed of the Ethernet connection. See the tables on the right for more information. Activity LED Link LED 2-4 Heartbeat LED (D1) On (Blinking) SIMSO(+): active Off (for 1 minute) Loading Firmware Off (Continu ously) SIMSO is not active GLAN Activity Indicator Color Status Definition Amber Flashing Active GLAN Link Indicator LED Color Definition Off No Connection or 10 Mbps Green 100 Mbps