Environmental Monitoring Temperature Sensor | Cisco Systems 901

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 1-3lists the system specifications for the Cisco ASR 901 router.

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

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.

Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide

	OL-23778-01	1-7

Image 17

Cisco Systems A9014CFD Environmental Monitoring Temperature Sensor, System Specifications, Router Interface Numbering

Contents

Text Part Number OL-23778-01 Americas HeadquartersPage N T E N T S Required Tools and Equipment Troubleshooting A-1 OL-23778-01 Revision Date Change Summary Document Revision History Audience ObjectivesOrganization Conventions Related Documentation Safety Warnings About This Guide Hardware Description Introduction Cisco ASR 901 Router Front View Cisco ASR 901 Router-Front View Cisco ASR 901 Router Ethernet Version Front View Fan Grounding Point Lug Cisco ASR 901 Router Rear View Safety Precautions Power SupplySpecification Value LEDs Pin Connector B Pin Connector a System Specifications Environmental Monitoring Temperature SensorDescription Specification Router Interface Numbering Interface Number Location Label Regulatory Compliance Safety with Equipment Safety Guidelines Safety with Electricity Preventing Electrostatic Discharge Damage Prerequisites Power Supply ConsiderationsSite Planning Site Environment Air Flow Guidelines Method of Procedure Required Tools and Equipment Unpacking and Checking the Contents of your Shipment Task Verified by Date Installation Checklist Creating a Site Log Console Port ConsiderationsConsole Port Connections Task Verified by Preparing to Install the Router Console Port Considerations OL-23778-01 Network Modules Installing the Cisco ASR 901 Mobile Wireless Router Mounting the Cisco ASR 901 Router Rack-Mounting Configuration Guidelines Mounting the Cisco ASR 901 Router in a Rack Attaching the Rack-Mounting Brackets Attaching the Cable Guides Grounding the Cisco ASR 901 Router Connecting the Chassis Ground and Power Grounding Point Stripping a Ground Wire Power Connection Compliance 6-Pin Terminal Block Wiring the DC-Input Power Source Installing SFP Modules Installing and Removing SFP Modules Removing SFP Modules Installing an SFP Module into an SFP Module Slot Connecting the Console Port Connecting Cables Console Port Types of RJ-45 Cables Connecting T1 and E1 Interface Cables Connecting the Network CablesConnecting Gigabit Ethernet Interface Cables Connecting GPS Cables Connecting SFP CablesConnecting Cables to the Bits Interface Connecting to Alarm Port Powering On the RouterConnecting to the Management Ethernet Port Dressing Router Cables Power-On Procedure Checklist for Power UpFormatting Procedures for Flash Memory Interpreting Front-Panel LEDs Copying Files File and Directory ProceduresDisplaying Contents of the Flash Memory Deleting Files from the Flash Memory Displaying File Content Enter a Directory and Determine the Current Directory What to Do After Installing the Hardware OL-23778-01 Problem Solving Troubleshooting Symptom Possible Cause Corrective Action Troubleshooting the Power and Cooling SystemsEnvironmental Reporting Features Information Packet publication Troubleshooting Cables, and Connections Chassis LEDs Reading the LEDsCopper GE from Quad combo PHY ports contain Two Leds each System LED SFP Ethernet Interface LEDs T1/E1 Interface LEDsRJ-45 Ethernet Interface LEDs Color/State Description two LEDs for each T1/E1 port OL-23778-01 Gigabit Ethernet Connector Pinouts Cable Specifications T1/E1 Port Pinouts SFP Port Pinouts and Cable SpecificationsPin FE Signal GE Signal Pin Signal Name Direction Description Console Port Signals and PinoutsConsole Port Signals and Pinouts RJ-45-to-DB-9 Terminal Adapter Console Pin Signal Name HP Pins Direction Description Console RJ-45-to-DB-25 Port DTE Terminal Adapter Device Signal RJ-45 Pin DB-25 PinIdentifying a Rollover Cable GPS Port Pinouts Bits Port PinoutsTime of Day Pinouts Pin Signal Name Description Alarm Port PinoutsManagement Ethernet Port Pinouts 10 Mhz RxDP RxDN TxDP Not connected TxDN Site Log Initials Date Numerics IN-2 IN-3 IN-4