3Com 4800G Getting Started Guide - Page 21

Switch 4800G 48-Port 21 Table 6 Description of LEDs on the front panel of the Switch 4800G 48-Port LED 7-segment digital LED Mark Status Unit POST running Description The power LED flashes green. The LED displays the POST test ID. POST failed The power LED flashes red. The LED flashes the POST test ID of the failed test. Software loading The power LED flashes green. A bar rotates clockwise around the LED. Fan failure The power LED is solid red. The LED displays F. Over-temperature alarm The power LED is solid red. The LED displays t. Cluster status Solid green Auto-sensing - 10/100/1000Base-T Ethernet port status LED Speed Green Yellow Duplex Flashing yellow (3 Hz) OFF Green Yellow SFP port status LED (1000 Mbps) Flashing yellow (3 Hz) OFF The Mode button has no Green effect on the LED. Flashing yellow (3 Hz) OFF For a command switch, the LED displays C. For a member switch, the LED displays S. For a candidate switch, the LED displays c. The LED displays 1 if there is only one unit. A 1000 Mbps link is present. When data is being received or sent, the LED flashes at a high frequency. A 10/100 Mbps link is present. When data is being received or sent, the LED flashes at a high frequency. The port fails the POST. No link is present. The port operates in the full duplex mode. When data is being received or sent, the LED flashes at a high frequency. The port operates in the half duplex mode. When data is being received or sent, the LED flashes at a high frequency. The port fails the POST. No link is present. A 1000 Mbps link is present. When data is being received or sent, the LED flashes every 30 milliseconds. The port fails the POST. No link is present.