Cisco ONS 15454, Hardware Installation Manual, Page: 361 / 516

Figure 226: Removing the ONS 15454 M6 Standard Door
Step 3 Loosen the screws and slide the mechanical stop to unlock the door.
Step 4 Lower the door to slide the pin.
Step 5
Remove the retention feature from the pin present on the chassis.
Step 6 Pull the hinge pins holding the door to the chassis, in the opposite direction (see the following figure).
Step 7 Remove the door from its hinges (see the following figure).
Cisco ONS 15454 Hardware Installation Guide
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Installing the ONS 15454 M6 Shelf
DLP-G577 Remove the Standard Door of the ONS 15454 M6 Shelf