Cisco ASR 9901 Installation Guide

Figure 19: Mounting the Cisco ASR 9922 Router in an Open 4-Post Rack
4-Post Enclosed Rack with Perforated Sides
Item c in Figure 10: Telco-Type Equipment Racks, on page 10 shows a free-standing 4-post enclosed rack
with perforated sides and two mounting posts in the front.
Do not install the Cisco ASR 9000 Series Router in any type of fully enclosed rack that does not have the
required perforated sides or doors; the router requires an unobstructed flow of cooling air to maintain acceptable
operating temperatures for its internal components. Installing the router in any type of fully enclosed rack
without proper perforation could disrupt the air-flow, trap heat next to the chassis, and cause an overtemperature
condition inside the router.
Caution
Air Flow Guidelines for Enclosed Rack Installation
Follow these guidelines when installing the Cisco ASR 9000 Series Routers in a 4-post enclosed rack.
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
18
Preparing for Installation
4-Post Enclosed Rack with Perforated Sides

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)