Cisco ONS 15454 Hardware Installation Manual page 469

Maintaining the ONS 15454 M12 (ANSI and ETSI), ONS 15454 M2 and ONS 15454 M6 Shelf
Step 13
If you removed the door, complete the
the door.
Stop. You have completed this procedure.
NTP-G274 Replace the Air Filter of the ONS 15454 M2 Shelf
Assembly
Purpose
Tools/Equipment
Prerequisite Procedures
Required/As Needed
Onsite/Remote
Security Level
Note
The air filters are single-use only. They must not be cleaned and reused. This is a Telcordia NEBS requirement,
GR-63-CORE Issue 4.
Note Air filters must be inspected every month. If they are dirty or clogged with dust, they must be replaced with
a new air filter.
Procedure
Step 1 Untighten the screw on the air-filter (see the following figure).
NTP-G274 Replace the Air Filter of the ONS 15454 M2 Shelf Assembly
NTP-G40 Replace the Front Door , on page
This procedure replaces the air filter of the ONS 15454 M2 shelf assembly.
New air filter
• NTP-G266 Install the ONS 15454 M2 Shelf, on page 194
• Connect the chassis to the office ground. For detailed instructions on how
to ground the chassis, refer to the
Guide for Cisco CPT and Cisco ONS
As Needed
Remote
Provisioning or higher
Cisco ONS 15454 Hardware Installation Guide
448. If not, close and lock
Electrostatic Discharge and Grounding
Platforms.
439