Guidelines for managing the fibers and cables:
• Use velcro tapes to tie the fibers to the fiber management bracket.
• Fibers from the left line cards should exit from the left and fibers from the right line cards should exit from the right.
• Fibers and cables from the controller should exit from the right. Maintain sufficient slack to extract the controller
during OIR.
• Cables from the PSU should exit from the left (when viewed from the rear side).
• Ground cable should exit from the right (when viewed from the rear side).
• For ETSI racks, route the power and the ground cables in the 50 mm space below the chassis, to maintain a chassis
footprint of 600 mm.
Air Filter
The air filter removes dust from the air drawn into the chassis by the fan units. If the air filters are damaged,
dirty, or clogged with dust, they must be replaced with a new air filter. Failure to replace a compromised air
filter can result in insufficient air circulation through the chassis and temperature-related environmental alarms.
The Cisco NCS 1004 air filter has the following components:
• Two air filter side brackets
• One air filter frame
• One air filter
All the three components need to be ordered for first-time installation. The combined PID for all these three
components is NCS1K4-FLTR-ASL. The PID for the air filter unit is NCS1K4-FLTR. After first installation
of the air filter unit, only the air filter needs to be replaced. The air filter side brackets and the frame can be
reused.
First inspection of the air filter must be performed six months after the first installation of the air filter. Air
filters must be inspected every three months after the initial six month inspection and replaced if found to be
dirty. Cleaned air filters cannot be reused. Replace with a new air filter. It is recommended to have spare air
filters in stock.
Air filter does not meet the ETSI 600 mm footprint.
Note
Install Air Filter
This task has details about installing the air filter. It is recommended to include the air filter installation as
part of the chassis installation.
Precautions while installing air filters
• Ensure that the pull tabs of the pluggables do not get damaged during installation.
Hardware Installation Guide for Cisco NCS 1004
52
Install Cisco NCS 1004 Modules
Air Filter