Environmental Monitoring Temperature Sensor; System Specifications; Router Interface Numbering - Cisco 901 Installation Manual

Chapter 1 Introduction

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
Table 1-3
Description
Dimensions (H x W x D)
Weight
Console and Auxiliary ports
Operating Temperature
Non-Operational Temperature
Operating Humidity
Non-Operational Humidity
Operating Altitude
Operating Vibration
Non-Operational Vibration
Operating Acoustics
Air Flow

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:
•
•
•
OL-23778-01
lists the system specifications for the Cisco ASR 901 router.
Cisco ASR 901 Router System Specifications
Logical slot numbers starts from 0 for all built-in interfaces. The numbering format is
type Slot number/Interface number.
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.
Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide
Specification
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
3.1 Kgs (7 pounds)
RJ-45 connector
Operating temperature range is -40°C to +65°C (-40 to+149°F)
Temperature: -40 to 70 degrees C (-40 to 21.1 F)
10 to 90% RH (non-condensing)
Upto 93% RH
13,800 ft. (4206 m)
0.15 G, 10 to 500 Hz/100 minutes per axis
0.8 G, 10 to 500 Hz/30 minutes per axis
60 db
Side to side
Interface (port) numbers begin at logical 0 for each interface
Environmental Monitoring Temperature Sensor
Interface
1-7