Cisco ASR 9901 Hardware Installation Guide

Figure 79: Installing the Plenum Assembly in a Rack
Step 6 Attach the plenum assembly to the left and right rack rails using customer-supplied rack-mounting screws.
We recommend a minimum of four screws per side. These screws can vary in size and type depending on the
rack that you use. Torque the screws to the weight specified for your particular rack.
Step 7 Attach the rear adapter plates to the rear side of the plenum assembly. Fasten the rear adapter plates with M3
x 10mm screws, three on each side (see the figure below).
If the front to rear spacing for the cabinet is 18.4 inches, attach rear adapter plates for support.
Note
Cisco ASR 9901, ASR 9001, and ASR 9001-S Routers Hardware Installation Guide
71
Unpacking and Installing the Chassis
Installing the Air Plenum Kit in an ETSI Two-Post to 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)