3Com 4800G Getting Started Guide - Page 15

Switch 4800G PWR 24-Port 15 Table 5 Descriptions of the LEDs on the front panel of Switch 4800G PWR 24-Port LED Redundant power system LED Mark Status RPS Solid green Solid yellow Module LED OFF MOD Solid green Flashing yellow OFF 7-segment digital Unit POST running LED Description The AC power input and the DC power input are both normal. The DC power input is normal, but an AC power failure occurs or no AC power is connected. No DC power is connected. The module is in position and works normally. The switch does not support the module or a module failure occurs. No module is installed. 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 state PoE mode The power LED is solid green. 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. The power LED is solid green. The LED displays the utilization of the power supply. 81 - 100% 61 - 80% 41 - 60% 21 - 40% 0 - 20%