3Com 3C13886 Installation Guide - Page 60
Table 3-9, Description, NDEC panel is shown in the following
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3Com Router Module Guide Chapter 3 Multifunctional Interface Modules 3.4.4 Interface LEDs NDEC panel is shown in the following figure: Figure 3-21 NDEC panel Table 3-9 Description of the LEDs on NDEC panel LED Description OFF: The module is not powered ON, the PSU has failed to operate or a serious 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 initialization RUN is done, but the module has not entered the normal software initialization flow; Normal blinking (1-second ON and 1-second OFF): The module is operating normally; Steady ON: The software initialization has failed and the service cannot be run normally. Fast blinking: The module is in the loading status. Steady ON: Module loading has failed. ACT Fast blinking unsteadily: The module is operating normally, and the data is being transmitted or received between the module and the host. OFF: The module is operating normally, and there is no data being transmitted or received between the module and the host. SPEED ON: The module is booting the system after power-on. OFF: The module is operating normally. DENY Fast blinking: The request of module software for memory has failed and the service cannot be run normally. OFF: The module is operating normally. 3-16