3Com Router 5000 and Router 6000 v2.41Module GuideChapter 3Multifunctional Interface Modules (Router 5000)3-163.4.4 Interface LEDsNDEC panel is shown in the following figure:Figure 3-21 NDEC panelTable 3-9 Description of the LEDs on NDEC panelLED DescriptionRUNOFF: The module is not powered ON, the PSU has failed to operate or aserious hardware fault has occurred.Fast blinking (4Hz): The hardware initialization is not done yet:Slowly blinking (2-second ON and 2-second OFF): The hardware initializationis done, but the module has not entered the normal software initialization flow;Normal blinking (1-second ON and 1-second OFF): The module is operatingnormally;Steady ON: The software initialization has failed and the service cannot be runnormally.ACTFast blinking: The module is in the loading status.Steady ON: Module loading has failed.Fast blinking unsteadily: The module is operating normally, and the data isbeing transmitted or received between the module and the host.OFF: The module is operating normally, and there is no data being transmittedor received between the module and the host.SPEED ON: The module is booting the system after power-on.OFF: The module is operating normally.DENYFast blinking: The request of module software for memory has failed and theservice cannot be run normally.OFF: The module is operating normally.
