Cisco XR 12410 User Manual Page 144
- Page / 238
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Chapter 4 Troubleshooting the Installation
Troubleshooting the Power Subsystem
4-14
Cisco XR 12410 and Cisco XR 12810 Router Installation Guide
OL-17441-01
Troubleshooting the Power Distribution System
The power distribution system consists of:
• AC or DC PEMs which supply –48 VDC to the backplane,
• The chassis backplane which carries voltage to chassis components.
• DC-to-DC converters which convert –48 VDC from the backplane to the
correct voltages required by the line cards.
Use the following procedure to troubleshoot the power distribution system.
Step 1 Check each power supply to make sure that:
• The ejector lever is fully closed and properly secured by the its captive screw.
• The Pwr OK indicator is on.
• The Fault and Temp indicators are both off.
If the power supplies meet the above criteria, then the correct source power is
present and within tolerance. The power supplies are functioning properly.
Step 2 Make sure the blower module is operating.
• If the blower module is functioning, then the –48 VDC from the chassis
backplane and the cables from the backplane to the blower module are
functioning properly.
• If the blower module is not functioning, there may be a problem with either
the blower module itself, or the –48
VDC power supplied to the blower
module. Eject and reseat the blower module.
• If the blower module is still not operating there could be a problem with the
blower module controller card or cable. Replace the blower module.
• Contact your Cisco representative if replacing the blower module does not fix
the problem.
- Router Installation Guide 1
- CONTENTS 5
- B Site Log B-1 9
- Contents 10
- OL-17441-01 10
- Changes to This Document 11
- Audience 12
- Document Organization 12
- Document Conventions 13
- Product Overview 15
- AC and DC Power Subsystems 19
- Figure 1-4 AC PEM Components 20
- DC Power Supplies 21
- • 2 alarm cards 23
- Clock Scheduler Card 24
- Alarm Cards and Alarm Display 25
- Line Cards 28
- Route Processor 28
- BITS 1 AUX CONSOLE 33
- PRP-3 LEDs 34
- PRP Memory Components 37
- PRP SDRAM 41
- PRP SRAM 42
- PRP NVRAM 42
- PRP Flash Memory 42
- PRP-3 Compact Flash 43
- XR 12000 Series Router 44
- Horizontal cable 46
- Blower Module 47
- Figure 1-18 Cooling Air Flow 48
- Preparing for Installation 51
- Safety Guidelines 52
- Laser Safety 53
- Lifting Guidelines 55
- Site Requirement Guidelines 56
- Enclosed Rack 57
- Open Rack 57
- Telco Rack 58
- Center-mount 59
- Rack-mount bracket 59
- (attached to rack posts) 59
- 18.95 in 61
- 26.533 in 61
- 7.735 in 61
- 18.798 in 61
- Air Flow Guidelines 62
- Power Connection Guidelines 63
- AC-Powered Routers 64
- DC-Powered Routers 65
- Figure 2-8 DC Power Cable Lug 66
- Site Wiring Guidelines 70
- PRP Auxiliary Port Signals 74
- PRP Console Port Signals 75
- PRP Ethernet Connections 76
- 8 7 6 5 4 3 2 1 78
- Transmission 80
- Installation Overview 85
- Required Tools and Equipment 86
- 1 Front Door Latch 87
- Removing Power Supplies 89
- Removing DC PEMs 90
- Removing the Blower Module 91
- Verifying Rack Dimensions 99
- Reinstalling Power Supplies 109
- Reinstalling AC PEMs 110
- Reinstalling DC PEMs 111
- Air filter door 114
- Clock scheduler card 114
- FAST ETERNET 118
- Alarm display 125
- Troubleshooting Overview 132
- Identifying Startup Issues 134
- Figure 4-1 AC PEM Components 136
- Troubleshooting a DC PEM 140
- 1 3 4 52 6 146
- 1 3 4 52 146
- ETH 1ETH 0 148
- PRP Reset Switch 149
- PROCESSOR 150
- PRP-3 Alphanumeric LEDs 154
- Single PRP-3 Scenario 154
- Dual PRP-3 Scenario 156
- Troubleshooting Line Cards 159
- Figure 4-11 Cooling Air Flow 167
- Blower Module Operation 168
- Power Supply Operation 168
- Overtemperature Conditions 169
- Maintaining the Router 173
- Powering Off the Router 174
- OC-12/STM-4 ATM 178
- Subsystem Components 184
- Figure 5-7 AC PEM Components 186
- Figure 5-11) 192
- Rear panel 193
- AC horizontal trough 193
- DC horizontal trough 204
- Clear plastic covers 204
- Card Cage 212
- Technical Specifications 219
- • chassis only 220
- Router Specifications 224
- Site Log 225
- Appendix B Site Log 226
- Numerics 229
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