Cisco ASR 9901 Hardware Installation Guide

What to do next
Figure 68: Installing the Cisco ASR 9001 Chassis in a Two-Post Rack
Three screws on each side (minimum two) to attach the chassis to the rack1
Installing the Chassis in a Four-Post Rack
If you are installing the chassis without air plenum kit, you will need two side mounting brackets used to
attach the chassis to the rear posts as shown in the figure below. See Before you Begin, on page 56 for
mounting bracket information.
To install the chassis in a four-post open rack, follow these steps:
Procedure
Step 1 Follow the steps in Installing the Chassis in a Two-Post Rack, on page 57 to secure the chassis to the front
rack posts.
Step 2 For rear mounting, align each rear mounting bracket (see the figure below) with the screw holes on the chassis
and the mounting holes in the rear rack posts.
Step 3 Fully tighten both screws to the chassis on each side to secure the chassis to the rear posts.
Cisco ASR 9901, ASR 9001, and ASR 9001-S Routers Hardware Installation Guide
59
Unpacking and Installing the Chassis
Installing the Chassis in a Four-Post Rack

Cisco ASR 9901 Specifications

General

Chassis Height	1 RU
Rack Mounting	Yes
Redundancy	Yes
Operating System	Cisco IOS XR
Switching Capacity	Up to 1.2 Tbps
Memory	16 GB
Power Supply	Dual redundant AC or DC
Interfaces	10GE, 100GE
Operating Temperature	0 to 40°C (32 to 104°F)
Input Voltage	100-240V AC
Power Consumption	Varies based on configuration
Storage	64 GB SSD
Humidity	5% to 95% (non-condensing)