Cisco ONS 15454 M12 Maintenance Manual page 3

Maintaining the ONS 15454 M12 (ANSI and ETSI), ONS 15454 M2 and ONS 15454 M6 Shelf
Filter Bracket (Front Door Removed), on page 4
an ETSI shelf.
Step 2 If the filter is installed below the fan tray and not in the external filter brackets, open the front door of the
shelf assembly. If the front door is already open, proceed to Step 3.
a) Open the front door lock.
The ONS 15454 comes with a pinned hex key for locking and unlocking the front door. Turn the key
counterclockwise to unlock the door and clockwise to lock it.
b) Press the door button to release the latch.
c) Swing the door open.
Step 3 (Optional) Remove the front door using the
the door or it is already removed, proceed to Step 4.
Figure 1: ANSI Shelf Fan-Tray Air Filter in an External Filter Bracket (Front Door Removed)
DLP-G10 Remove the Front
Maintaining the ONS 15454 M12 (ANSI and ETSI), ONS 15454 M2 and ONS 15454 M6 Shelf
NTP-G114 Inspect and Replace the Air Filter
shows the fan-tray air filter in an external filter bracket on
Door. If you do not want to remove
3