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Chapter 1 Cisco XR 12406 Router Overview
Physical and Functional Description
1-14
Cisco XR 12406 Router Installation Guide
OL-13831-01
PRP Memory Components
This section describes various types of memory used on the PRP to support router
functions.
Table 1-3 provides a quick reference of the different types of memory,
and Figure 1-8 shows the location on the PRP board.
Ta b l e 1-3 PRP-2 Memory Components
Type Size Quantity Description Location
SDRAM
1
1. Default SDRAM configuration is 2-GB for PRP-2. Bank 1 (U15) must be populated first. You can use one or both banks to
configure SDRAM combinations of 2 GB and 4 GB for the PRP-2. 1.5-GB configurations.and DIMM devices that are not
from Cisco are not supported.
2 GB (default)
or 4 GB
(optional)
1 or 2 2-GB or 4-GB DIMMs (based on desired
SDRAM configuration) for main Cisco IOS
XR software functions
U15 (bank 1)
2
U18 (bank 2)
2. If both banks of the PRP-2 are populated, bank 1 and bank 2 must contain the same size DIMM.
SRAM
3
3. SRAM is not user configurable or field replaceable.
2 MB (fixed) — Secondary CPU cache memory functions —
NVRAM
4
4. NVRAM is not user configurable or field replaceable.
2 MB (fixed) 1 System configuration files, register settings,
and logs
—
HDD 40 GB 1 Contains log and crash information for
specific Cisco IOS XR versions.
—
Flash
memory
2 GB or 4 GB
(optional)
Compact
Flash
1 Contains Cisco IOS XR boot image
(bootflash), crash information, and other
user-defined files
P3
4 MB Boot
ROM
1 Stores the ROMMON minimum boot image
(MBI).
Flash disks
5
2
GB (default)
or 4 GB
(optional)
5. ATA Flash disks are supported in the PRP-2.
1 or 2 Contains Cisco IOS XR software images,
system configuration files, and other
user-defined files on up to two flash disks
Flash disk
slot 0 and
slot 1
1 GB CF
6
6. Optional PRP-2 hardware. Compact disks that are not from Cisco are not supported.
1 Contains large Cisco IOS XR software
images
—
- March 2009 1
- CONTENTS 5
- B Repacking the Router B-1 9
- Contents 10
- OL-13831-01 10
- Changes to This Document 11
- Audience 12
- Document Conventions 13
- Router Description 17
- Features 21
- Route Processor 23
- 1 3 4 52 25
- PRP-3 LEDs 29
- PRP Memory Components 30
- PRP SDRAM 34
- PRP SRAM 35
- PRP NVRAM 35
- PRP Flash Memory 35
- PRP-3 Compact Flash 36
- Line Cards 37
- Q OC-3/STM-1 MM POS 38
- Q OC-3/STM-1 SM IR POS 38
- Switch Fabric Card Types 39
- Alarm Cards 41
- Alarm Output Function 42
- Alarm Card Status 43
- Power Source Monitoring 43
- Power Subsystems 44
- AC Power Subsystem 45
- AC-Input Power Supply 47
- DC Power Subsystem 49
- DC-Input Power Entry Module 51
- Blower Module 53
- Top view 54
- Device Discovery 56
- Code Download 56
- Diagnostics 56
- Air Filters 58
- Cable-Management System 59
- Field-Replaceable Units 62
- Cisco XR 12000 Series Router 63
- Technical Specifications 63
- Preparing for Installation 65
- Safety and Compliance 66
- General Safety Guidelines 67
- Router Chassis 70
- Laser Safety 71
- Lifting Guidelines 71
- Safety with Electricity 72
- Rack-Mounting Guidelines 73
- XR 12406 Router 74
- Ventilation 76
- Environmental Guidelines 77
- Power Connection Guidelines 78
- Figure 2-3 AC Power Plugs 80
- Grounding Connections 81
- Compliance 82
- Figure 2-5 Cable Lug 82
- Figure 2-6 Crimping the Lug 83
- Site Wiring 84
- Distance Limitations 85
- Site Preparation Checklist 86
- Installing a Router 90
- Figure 3-7 Cable Lug 100
- Figure 3-8 Crimping the Lug 101
- SCO 12000 104
- Connecting Alarm Card Cables 105
- PRP Console Port Signals 107
- PRP Auxiliary Port Signals 107
- PRP Ethernet Connections 111
- 8 7 6 5 4 3 2 1 112
- Figure 3-19 DC PDU 118
- 1 432 5 6 122
- External Network Interface 123
- Manually Booting the System 123
- RP Alphanumeric LED 126
- ETH 1ETH 0 128
- Identifying Startup Problems 131
- Troubleshooting the RP 143
- Right alphanumeric 144
- LED display (four digits) 144
- Left alphanumeric 144
- BITS 1 AUX CONSOLE 145
- PRP-3 Alphanumeric LEDs 148
- Single PRP-3 Scenario 148
- Dual PRP-3 Scenario 151
- Monitoring Alarm Card Status 159
- Maintaining the Router 165
- Tools and Equipment 167
- Powering Off the Router 167
- Removing the Front Cover 168
- Installing the Front Cover 168
- 1 Release buttons 169
- Installation Guidelines 177
- Step 12 Power on the PEMs 204
- Figure 5-28) 208
- For fiber-optic or 211
- GIGABIT SWIT CH ROUTER 215
- Fabric Cards 221
- Specifications and Warnings 223
- • Chassis, minimum 224
- Specifications 227
- Compliance Information 228
- Ta b l e A-7 Immunity Tests 229
- FCC Class A Compliance 231
- CISPR 22 232
- Europe (EU) 232
- VCCI Class A Notice for Japan 233
- Class A Notice for Hungary 233
- Class A Notice for Korea 234
- Compliance Label 235
- Repacking the Router 237
- Shipping Package Overview 238
- 1 Pallet base 4 Plastic bag 239
- 2 Router 5 Accessory kit tray 239
- Safety Recommendations 240
- CISCO 12000 241
- Numerics 245
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