Router Installation Guide

ix
Cisco XR 12410 Router Installation Guide
OL-13832-01
Contents
Additional Power Subsystem Troubleshooting Information 4-12
Troubleshooting the Power Distribution System 4-14
Troubleshooting the Processor Subsystem 4-15
Performance Route Processor Overview 4-16
PRP PCMCIA Card Slots and Status LEDs 4-16
PRP Ethernet Ports and Status LEDs 4-17
PRP Auxiliary and Console Ports 4-18
PRP Reset Switch 4-18
PRP Alphanumeric Message Displays 4-19
PRP Memory Components 4-20
PRP SDRAM 4-22
PRP SRAM 4-22
PRP NVRAM 4-23
PRP Flash Memory 4-23
Troubleshooting the Route Processor 4-24
Troubleshooting Using the RP Alphanumeric Display 4-25
Troubleshooting Line Cards 4-27
Troubleshooting Using the Line Card Alphanumeric Display 4-28
Troubleshooting Using the Alarm Display 4-33
Monitoring Critical, Major, and Minor Alarm Status 4-34
Troubleshooting the Cooling Subsystem 4-35
Blower Module Operation 4-36
Power Supply Operation 4-36
Overtemperature Conditions 4-37
Isolating Cooling Subsystem Problems 4-38
CHAPTER 5 Maintaining the Router 5-1
Prerequisites and Preparation 5-2
Powering Off the Router 5-2
Removing and Replacing the Air Filter Door Front Cover 5-3