TRENDnet TE100-S86FX Manual - Page 12

n Port Status Fast Ethernet Switch 100BASE-FX Ports Each port has an array of three LEDs to show status information. The LEDs are identified by a corresponding array of captions located beside the LEDs on the front panel. LNK/ACT: The link indicator is the top LED. It is illuminated whenever the port is connected to another working networked device. The LED flashes when the port is transmitting or receiving data. 100: The middle LED shines whenever the switch detects that the corresponding port is connected to a 100BASE (100Mbps) segment. FDX/COL: The lower LED is illuminated when the port is operating in full-duplex mode. When this LED is off, the port is operating in half-duplex mode. o Power The LED flashes when the switch detects packet collisions on the port. This LED comes on when the switch is connected to a power supply and turned on. p Activity Status TX: Transmit Data RX: Receive Data 12 Fast Ethernet Switch User's Guide