Status Led - EXFO FTB-8510B Guia Del Usuario

Physical Interfaces and LEDs

Status LED

Status LED
Indicates the status of the FTB-8100 Series module. The STATUS LED is
green when the module is active and operates normally. The STATUS LED
is yellow when the module is in the booting process. The STATUS LED is
red to indicate a failure of the module.
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SONET/SDH Application