Cisco 901 User Manual

1-7
Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide
OL-23778-01
Chapter 1 Introduction
Environmental Monitoring Temperature Sensor
Environmental Monitoring Temperature Sensor
The Cisco ASR 901 router has a temperature sensor to detect overtemperature conditions inside the
chassis. The overtemperature detection trips at 70°C. This condition is reported to the processor as an
interrupt, where the software generates the appropriate alarms. If the router reaches a temperature of
85°C, the power supply cycles itself to prevent the router from exceeding the maximum temperature
while being powered up.
System Specifications
Table 1-3 lists the system specifications for the Cisco ASR 901 router.
Router Interface Numbering
Each network interface on a Cisco ASR 901 router is identified by a slot number and a port number,
explained in this sequence:
• Logical slot numbers starts from 0 for all built-in interfaces. The numbering format is Interface
type Slot number/Interface number.
Interface (port) numbers begin at logical 0 for each interface
type.
• Logical interface numbering for T1/E1 ports on the TDM interface module runs from 0/0 through
0/15. Ports are numbered bottom to top, left to right.
• Logical interface numbering for the built-in ethernet ports runs from g0/0 through g0/3, the combo
ports run from g0/4 to g0/7 and the SFP ports run from g0/8 through g0/11. The GE ports are
numbered bottom to top, left to right.
Table 1-3 Cisco ASR 901 Router System Specifications
Description Specification
Dimensions (H x W x D) 1.7 x 17.4 x 8.25 in. (4.37 cm x 44.2 cm x 21.0 cm) 1 RU (rack unit)
in a 19-inch (48.3
cm) rack
Weight 3.1 Kgs (7 pounds)
Console and Auxiliary ports RJ-45 connector
Operating Temperature Operating temperature range is -40°C to +65°C (-40 to+149°F)
Non-Operational Temperature Temperature: -40 to 70 degrees C (-40 to 21.1 F)
Operating Humidity 10 to 90% RH (non-condensing)
Non-Operational Humidity Upto 93% RH
Operating Altitude 13,800 ft. (4206 m)
Operating Vibration 0.15 G, 10 to 500 Hz/100 minutes per axis
Non-Operational Vibration 0.8 G, 10 to 500 Hz/30 minutes per axis
Operating Acoustics 60 db
Air Flow Side to side

Cisco 901 Specifications

General

Product Type	Router
Form Factor	Desktop
Model	901
Connectivity Technology	Wired
Data Link Protocol	Ethernet, Fast Ethernet
Features	VPN support, VLAN support, firewall protection
Ports	1 x WAN
Operating Temperature	32 to 104 degrees F (0 to 40 degrees C)
Storage Temperature	-4 to 149 degrees F (-20 to 65 degrees C)
Humidity	10% (non-condensing)