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Appendix C LEDs
lists the LEDs available for you to monitor the FRU status.
Table 34
LEDs at a glance
LEDs
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Chassis LEDs
On a 12910 AC switch, chassis LEDs are located at the upper part of the front panel, which are PWR
(power supply LED), FAN (fan tray status LED), MPU (MPU LED), NPU (switching fabric module LED), and
LPU (LPU LED), from left to right.