3Com 3C16476A User Guide - Page 11

Status Flashing Yellow Off Meaning Packets are being received or transmitted on the port at 10 Mbps Link not established, either nothing is connected to the port, or there is a problem. ■ Verify that the attached device is powered on ■ Verify that the cable or fiber is the correct type and is not faulty ■ For fiber connections, ensure that the receive (RX) and transmit (TX) cable connectors are not swapped If these checks do not identify the cause of the problem, it may be that the unit or the device connected to the port is faulty. Contact your 3Com network supplier for further advice. Table 5 10BASE-T/100BASE-TX/1000BASE-T Ports Status Meaning Green Link established, operating at 1000 Mbps Yellow Link established, operating at 10 or 100 Mbps Flashing Green Packets are being received or transmitted on the port at 1000 Mbps Flashing Yellow Packets are being received or transmitted on the port at 10 or 100 Mbps Physical Features 11 Status Meaning Flashing Yellow to Port disabled or link loopback error Green Off Link not established, either nothing is connected to the port, or there is a problem. ■ Verify that the attached device is powered on ■ Verify that the cable or fiber is the correct type and is not faulty ■ For fiber connections, ensure that the receive (RX) and transmit (TX) cable connectors are not swapped If these checks do not identify the cause of the problem, it may be that the unit or the device connected to the port is faulty. Contact your 3Com network supplier for further advice. (4) Module Active LEDs The Module Active LEDs show the status of any SFP modules that are installed. Table 6 Module Active LEDs Status Meaning Green Fiber SFP is inserted in the slot Off No fiber SFP is inserted in the slot