Cisco ASR 9901 User Manual

Figure 7: Air Flow Path through the Cisco ASR 9901 Router
Cisco ASR 9001 Router
Cool air is circulated through the Cisco ASR 9001 Router by one fan tray located along the right side of the
router (see the following figure).
The fan tray maintains acceptable operating temperatures for the internal components by drawing in cool air
through the vents, and circulating the air through the chassis. Each power supply is also equipped with fans
that draw cool air into the front of the power supply and force warm air out of the air exhaust.
See the following section for details on air flow clearance requirements for installation in an enclosed 4-post
rack.
Note
Preparing for Installation
10
Preparing for Installation
Chassis Air Flow Guidelines

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)