User's Manual
Table Of Contents
- Cisco ASR 901S Series Aggregation Services Router Hardware Installation Guide
- Contents
- Preface
- Introduction
- Preparing to Install the Router
- Installing the Router
- Mounting Kits Overview
- General Safety Information for Mounting
- Contents of the Mounting Kits
- Customer-Supplied Materials and Tools
- Router-Mounting Instructions
- Connecting the Chassis Ground and Power
- Opening the Router Chassis
- Power Connection Compliance
- Connecting the DC Power Cable to the Router
- AC Power Cable
- Connecting the AC Power Cable to the Router
- Connecting Cables
- Antenna Installation and Replacement
- Powering on the Router
- Enabling Zero Touch Provisioning on the Router
- Using CLIs for Flash Memory and Directory Procedures
- What to Do After Installing the Hardware
- Troubleshooting
- Specifications and Part Numbers
- Cable Specifications
- Site Log
•
Power and cooling systems—External power source, power cable, router power supply, and circuit
breaker. Also check for inadequate ventilation or air circulation.
•
Modules—Checking the LEDs on the modules can help you to identify a failure.
•
Cables—Ensure that the external cables connecting the router to the network are all secure.
Troubleshooting the Power and Cooling Systems
See the following table for information to help you isolate the problem.
Corrective ActionPossible CauseSymptom
Check for an environmentally
induced shutdown. (See
Environmental Reporting Features,
on page 68).
The cause is environmental.The System LED on the bottom
panel is not on.
Check the light pipe connection.Light pipe is not connected
properly.
•
Check the DC or AC input.
•
Check the DC or AC source.
The power source is not connected
properly.
The router shuts down after being
on for only a short time.
Check the chassis intake and heat
sink fins for obstructions. Clear any
obstructions.
The chassis intake and heat sink
fins are obstructed.
Check the environmental site
requirements provided in Table 8
in
Product Specifications, on page
72.
Installation does not meet
environmental site requirements.
Check the power LED on the front
panel of the router. If the LED is
on, the power supply is functional.
If the LED is off, refer to the Cisco
Information Packet for warranty
information or contact customer
service.
There is a possible power supply
failure.
The router partially boots, but the
LEDs do not come on.
Environmental Reporting Features
The router has a temperature sensor to detect over temperature conditions inside the chassis. The over
temperature detection triggers an alert at 158°F (70°C). This condition is reported to the processor as an
interrupt, where software takes action to generate the appropriate alarms. If the router reaches a temperature
Cisco ASR 901S Series Aggregation Services Router Hardware Installation Guide
68 OL-29732-01
Troubleshooting
Troubleshooting the Power and Cooling Systems
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