Cisco ASR 5000 Series

Installation Procedure Overview
Chassis Components ▀
ASR 5000 Installation Guide ▄
57
Item
Description
4
Upper bezel: Covers the upper fan tray bay.
5
Lower fan tray cover/EMI shield: Secures the lower fan tray assembly in place and serves as an EMI shield. The
cover also provides an air baffle allowing air to enter into the chassis.
6
Lower bezel: Covers the lower fan tray bay.
7
Lower fan tray assembly: Draws air into the chassis through the chassis' front and sides for cooling and ventilation. It
is equipped with a particulate air filter to prevent dust and debris from entering the system.
8
Power Filter Units (PFUs): Each of the system’s two 165 amp PFUs provides -48 VDC power to the chassis and its
associated cards. Each load-sharing PFU operates independently from the other to ensure maximum power feed
redundancy.