30 Chapter 1 About the Passport 8672ATME Module209195-BFigure 3 4-port OC-3c/STM-1 MDAFigure 4 shows the Passport 8672ATME Module with one OC-12c/STM-4 MDAinstalled. For information on installing the MDAs, refer to Installing MediaDependent Adapters for the Passport 8672ATME Module.Figure 4 Passport 8672 ATM module with OC-12c/STM-4 MDAOnline LEDThe front panel of the Passport 8672ATME Module has an Online LED thatindicates whether or not the module has power applied and is initialized correctly.When the Passport 8672ATME Module is first inserted into the chassis, the OnlineLED turns amber until the board is recognized by the system and passes apower-on self-test. If the module fails the self-test, the light is off. When the boardpasses the self-test and goes online, the LED illuminates a solid green.Note: You cannot configure the Passport 8672ATME Module until theonline LED on the module is steadily lit green and you have inserted atleast one MDA.9726EA9724EAOnlineMDA 2MDA 18672 ATM
