Emerson RTM-ATCA-F120-OPT Installation And Use Manual page 34

Hardware Preparation and Installation
1. Unlatch the lower handle outward by squeezing the lever and the latch together
and turning the handle outward only enough to unlatch the handle from the face
plate, that means until you feel a resistance. Do not rotate the handle fully
outwards.
The blue LED blinks indicating that the shelf manager is informed about the desire
of the blade to power down the payload of both the front blade and the RTM and
the power-down process is ongoing.
Data Loss
Removing the RTM with the system power on and the blue LED on the front blade still
flashing causes data loss.
Before removing the RTM from a powered system, power down the slot by opening the
lower handle of the front blade and wait until the blue LED is permanently ON.
2. Wait until the blue LEDs on both the front blade and the RTM are permanently ON.
A permanently switched ON LED indicates that the payload of respective blade or
RTM has been powered down.
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RTM-ATCA-F120-OPT Installation and Use (6806800G29B)