Cisco XR 12404 User Manual

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Cisco XR 12404 Router Installation Guide

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Text Part Number: OL-13830-02

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• Turn the television or radio antenna until the interference stops.

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• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses.)

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Cisco XR 12404 Router Installation Guide

About This Guide ix

Audience ix

Purpose ix

Installation Guide Organization x

Document Conventions xi

Obtaining Documentation, Obtaining Support, and Security Guidelines xii

CHAPTER

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1 Cisco XR 12404 Router Overview 1-1

Router Overview 1-1

Physical and Functional Description of Router 1-2

Route Processor 1-3

Performance Route Processor Overview 1-5

PRP Memory Components 1-9

Supported Line Cards 1-13

Consolidated Switch Fabric Card 1-15

Alarm Functionality 1-15 Switch Fabric Functionality 1-17

Clock and Scheduler Functionality 1-17

Power Entry Modules 1-17

AC PEMs 1-18

DC PEMs 1-19 Power Distribution 1-20

Fan Tray Assembly 1-20

Cisco XR 12404 Router Installation Guide

Contents

Cable Management System 1-22

Maintenance Bus 1-24

Power-On/Off Control 1-24

CHAPTER

2 Preparing for Installation 2-1

Tools and Equipment 2-2

Safety and Compliance 2-2

General Safety Guidelines 2-3 Compliance and Safety Information 2-4 Preventing Electrostatic Discharge Damage 2-4

Laser Safety 2-6 Lifting Guidelines 2-6

Safety with Electricity 2-8

Installation Site Requirements 2-8

Rack-Mounting and Ventilation Guidelines 2-8

Environmental Guidelines 2-11 Power Connection Guidelines 2-13 Site Wiring 2-15

Unpacking and Repacking the Cisco XR 12404 Router 2-16

Transporting a Cisco XR 12000 Series Router 2-17

Site Preparation Checklist 2-17

CHAPTER

3 Installing the Router 3-1

Required Tools 3-2

Installing a Cisco XR 12404 Router 3-2

Installing the Rack-Mounting Brackets—Optional 3-3

Installing the Center-Mounting Brackets—Optional 3-5 Installing the Chassis in a Rack 3-7 Installing the Chassis on a Tabletop or Flat Surface 3-8

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Supplemental Bonding and Grounding Connections 3-8

Connecting RP and Line Card Cables 3-12

Connecting to the Console Port and Auxiliary Ports 3-14

PRP Console Port Signals 3-16

PRP Auxiliary Port Signals 3-17

Installing a Flash Memory Card 3-17

Connecting the PRP to an Ethernet Network 3-18

Connecting to an AC Power Source 3-23

Connecting to a DC Power Source 3-25

Powering on the Router for the First Time 3-28

External Network Interface 3-32

Manually Booting the System 3-32

Contents

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4 Troubleshooting the Installation 4-1

Identifying Startup Problems 4-2

Using the System LEDs to Troubleshoot 4-3

Problem-Solving with Subsystems 4-5

Troubleshooting an AC Power Subsystem 4-6

Troubleshooting the DC Power Subsystem 4-9

Troubleshooting the Processor Subsystem 4-13

Troubleshooting the RP 4-14

Troubleshooting the Line Cards 4-19

Troubleshooting the Cooling Subsystem 4-19

5 Maintaining the Router 5-1

Tools and Equipment 5-2

Powering Off the Router 5-3

Removing and Installing the Front Cover 5-4

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vii

Contents

Removing and Replacing the Air Filter 5-7

Removing and Replacing the Fan Tray Assembly 5-10

Troubleshooting the Fan Tray Assembly Installation 5-12

Removing and Replacing an AC Power Entry Module 5-13

Troubleshooting an AC PEM Installation 5-15

Removing and Replacing a DC Power Entry Module 5-17

Troubleshooting the DC PEM Installation 5-20

Removing and Replacing a DC PDU 5-21

Troubleshooting the DC PDU Installation 5-27

Removing and Replacing an RP or Line Card 5-29

Attaching the Cable-Management Bracket and Connecting Cables 5-32

Removing and Replacing a Consolidated Switch Fabric Card 5-35

Upgrading the RP and Line Card Memory 5-37

APPENDIX

NDEX

viii

A Technical Specifications A-1

Product Architecture A-2

Specifications A-3

Compliance Information A-5

Regulatory, Compliance, and Safety Information A-8

Translated Safety Warnings and Agency Approvals A-8

Electromagnetic Compatibility Regulatory Statements A-8

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Audience

About This Guide

The audience for the Cisco XR 12404 Router Installation Guide user documentation are the people who will install and configure a Cisco XR 12404 Router. The user typically has a substantial background in installing and configuring router- and switch-based Internets but may or may not have experience with Cisco products and supported protocols.

The reader of this documentation should be familiar with electronic circuitry and wiring practices and have experience as an electronic or electromechanical technician.

Purpose

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This installation and configuration guide explains the hardware installation and basic configuration procedures for a Cisco XR 12404 Router. It contains procedures for installing the hardware, creating a basic configuration file, and starting up the router.

Cisco XR 12404 Router Installation Guide

Installation Guide Organization

The Cisco XR 12404 Router Installation Guide has the following chapters and appendix; the paper version of this document may contain an index.

• Chapter 1, “Cisco XR 12404 Router Overview”—Contains a high-level

system overview and physical description of the major components of a Cisco XR 12404 Router including the power and cooling systems, the power requirements, the Route Processor (RP) and the consolidated switch fabric (CSF) card which contains the clock and scheduler, alarm and switch fabric functions.

• Chapter 2, “Preparing for Installation”—Contains safety, site requirements

for power, environmental safety, cabling, rack-mounting, electrostatic discharge (ESD), the site log, and site preparation checklist.

• Chapter 3, “Installing the Router”—Contains procedures for verifying the

Cisco XR 12404 Router installation, grounding, cable connection, AC-and DC-power source and powering-up the router.

• Chapter 4, “Troubleshooting the Installation”—Contains procedures for

identifying and solving problems that may occur during installation.

• Chapter 5, “Maintaining the Router”—Contains safety at the field

replaceable unit (FRU) level, removal and replacement procedures for field-replaceable units, FRU assemblies, and associated procedures to troubleshoot and verify each FRU.

About This Guide

• Appendix A, “Technical Specifications”—Contains Cisco XR 12404 Router

specifications.

• Index—Contains a keyword and subject index of pertinent terms and

information.

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About This Guide

Document Conventions

This publication uses the following conventions:

• The key combination Ctrl-z means hold down the Control key while you

press the z key.

Command descriptions use these conventions:

• Examples that contain system prompts denote interactive sessions, indicating

the commands that you should enter at the prompt. The system prompt indicates the current level of the EXEC command interpreter.

Document Conventions

For example, the prompt level, and the prompt

router> indicates that you should be at the user

router# indicates that you should be at the privileged

level. Access to the privileged level usually requires a password. Refer to the related software configuration and reference documentation for additional information.

• Commands and keywords are in bold font.

• Arguments for which you supply values are in italic font.

• Elements in square brackets ([ ]) are optional.

• Alternative but required keywords are grouped in braces ({ }) and separated

by vertical bars (|).

Examples use these conventions:

• Terminal sessions and sample console screen displays are in screen font.

• Information you enter is in boldf ace screen font.

• Nonprinting characters, such as passwords, are in angle brackets (< >).

• Default responses to system prompts are in square brackets ([ ]).

• Exclamation points (!) at the beginning of a line indicate a comment line.

Caution Means reader be careful. You are capable of doing something that might result in

equipment damage or loss of data.

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Note Means reader take note. Notes contain helpful suggestions or references to

materials not contained in this manual.

Cisco XR 12404 Router Installation Guide

Obtaining Documentation, Obtaining Support, and Security Guidelines

Timesaver Means the described action saves time. You can save time by performing the

action described in the paragraph.

About This Guide

Warning

This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Obtaining Documentation, Obtaining Support, and Security Guidelines

For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and recommended aliases and general Cisco documents, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

xii

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Cisco XR 12404 Router Overview

This chapter provides an overview of the Cisco XR 12404 router. It contains physical descriptions of the router hardware and major components, and functional descriptions of hardware-related features.

Router Overview

The Cisco XR 12404 router scales the Internet Service Provider edge from speeds of T3/E3 (44.7/34.4 Mbps) up to OC-192/STM-64 or 10GE (10 Gbps).

Figure 1-1 shows the PRP-2, consolidated switch fabric (CSF) card, and line card

locations of the Cisco XR 12404 router. Network interfaces reside on the line cards that provide the connection between the router’s CSF and the external networks. The bottom slot (labeled Fabric Alarm) is a dedicated slot for the combined CSF card.

CHAPTER

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Note Illustration is shown without the front door for clarity.

Cisco XR 12404 Router Installation Guide

1-1

Physical and Functional Description of Router

Figure 1-1 Cisco XR 12404 Router—Front View

C L

A S

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SLOT-1

RESET

SLOT-0

X U A

1 Line card 4 CSF card

2 Line card 5 Rack mounting bracket

3 Route Processor

E L O

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COLL

LINK

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Chapter 1 Cisco XR 12404 Router Overview

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Physical and Functional Description of Router

The Cisco XR 12404 router supports up to 8 chassis in a one standard 7-foot (2.15 meter) rack and has the following key features:

• Route processor (PRP-2)—The primary route processor is installed in it’s

own dedicated slot. A redundant route processor can go in any line card slot. See the “Route Processor” section on page 1-3 for information.

• Line cards—The card cage contains 4 hot-swappable card slots. The router

can accommodate up to three OC-192 line cards (or 2 line cards if redundant route processors are installed). See the “Supported Line Cards” section on

page 1-13 for information.

• Consolidated switch fabric card (CSF)—Switch fabric, alarm, and clock

schedule functions are located on one board. The CSF card has a switching capacity of 10 Gbps. See the “Consolidated Switch Fabric Card” section on

page 1-15 for information.

Cisco XR 12404 Router Installation Guide

1-2

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Chapter 1 Cisco XR 12404 Router Overview

• AC power entry module (PEM)—A customized and hot-swappable one-piece

unit. See the “Power Entry Modules” section on page 1-17 for information.

• DC power entry module (PEM) and DC power distribution unit (PDU)—Two

pieces that can be removed as one unit or in separate pieces. See the “Power

Entry Modules” section on page 1-17 for information.

Note When operating the router, both power module bays must have DC PEMs

and DC PDUs installed to ensure EMI compliance.

• Fan tray assembly—Supplies cooling air to the router. See the “Fan Tray

Assembly” section on page 1-20 for information.

• Cable management bracket used to neatly route line card cables. See the

“Cable Management System” section on page 1-22 for information.

• Maintenance Bus—Controls all of the MBus modules in the system. See the

“Maintenance Bus” section on page 1-24 for information.

Route Processor

The route processor for the Cisco XR 12404 router is the Performance Route Processor (PRP-2). For detailed information about the PRP-2, refer to the Cisco document, Performance Route Processor Installation and Configuration Guide.

The PRP-2 performs the following primary functions:

• Executes routing protocol stacks

• Performs all protocol communications with other routers

• Builds and distributes forwarding information to all line cards

• Uploads the operating system software images to all installed line cards

during power-on

• Provides out-of-band system console and auxiliary ports and an Ethernet port

for router configuration and maintenance

• Monitors and manages the power and temperature of system components

such as line cards, power supplies, and fans

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Cisco XR 12404 Router Installation Guide

1-3

Route Processor

Chapter 1 Cisco XR 12404 Router Overview

The Cisco PRP-2 delivers all these functions with enhanced performance and capabilities. It also delivers the following feature enhancements (depending on the software version running):

• 2 Ethernet management ports

• Hard-drive support (optional part)

• BITS input ports

• 1 GB compact image Flash memory support (optional part)

• Memory scalability up to 4 GB

The PRP-2 communicates with the line cards either through the switch fabric or through the MBus. The switch fabric connection is the main data path for routing table distribution as well as for packets that are sent between the line cards and the PRP-2. The MBus connection allows the PRP-2 to download a system bootstrap image, collect or load diagnostic information, and perform general, internal system maintenance operations.

The PRP-2 can be designated as either the Designated System Controller (DSC) or the Secure Domain router (SDR).

The Designated System Controller (DSC) performs the following functions:

1-4

• Implements control plane operations for the chassis

• Monitors temperature and voltage

• Monitors line cards

• On boot up, the first card to become active is designated as the DSC.

The Secure Domain Router (SDR) controls domain security features independent of any other SDRs on the network.

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Chapter 1 Cisco XR 12404 Router Overview

Performance Route Processor Overview

The performance route processor (PRP) uses a Motorola PowerPC 7450 CPU that runs at an external bus clock speed of 133 MHz and has an internal clock speed of 667 MHz.

Figure 1-2 identifies the slots, ports, and LEDs on the PRP front panel.

Figure 1-2 Performance Route Processor Front Panel

Route Processor

EJECT

SLOT-1

SLOT-0

LINK

ETH 1ETH 0 AUX

1 PCMCIA flash disk slots (shown with cover in

LINK

4 Console serial port

CONSOLE

RESET

PERFORMANCE ROUTE PROCESSOR 1 (PRP-1)

place) and slot LEDs

2 RJ-45 Ethernet ports and data status LEDs 5 Reset button

3 Auxiliary serial port 6 Alphanumeric messages

PRP PCMCIA Card Slots and Status LEDs

Two PCMCIA card slots (slot 0 and slot 1) provide the PRP with additional flash memory capacity. All combinations of different flash devices are supported by the PRP. You can use ATA flash disks, Type 1 or Type 2 linear flash memory cards, or a combination of the two.

Note The PRP only supports +5.2 VDC flash memory devices. It does not support

+3.3 VDC PCMCIA devices.

Status LEDs (Slot-0 / Slot-1) indicate when the flash memory card in that slot is accessed (see Figure 1-2). Each slot has an eject button (located behind the cover) to remove a flash card from the slot.

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Cisco XR 12404 Router Installation Guide

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Route Processor

PRP Ethernet Ports and Status LEDs

The PRP has two 8-pin media-dependent interface (MDI) RJ-45 ports for either IEEE 802.3 10BASE-T (10 Mbps) or IEEE 802.3u 100BASE-TX (100 Mbps) Ethernet connections. These ports are labeled ETH 0 and ETH 1.

The transmission speed of the Ethernet port is not user-configurable. You set the speed through an autosensing scheme on the PRP which is determined by the network that the Ethernet port is connected to. However, even at an autosensed data transmission rate of 100 Mbps, the Ethernet port can only provide a usable bandwidth of substantially less than 100 Mbps. You can expect a maximum usable bandwidth of approximately 20 Mbps when using an Ethernet connection.

The following LEDs on the front panel indicate traffic status and port selection (Figure 1-3):

• LINK, EN, TX, RX—Indicate link activity (LINK), port enabled (EN), data

transmission (TX), and data reception (RX).

• PRIMARY—Indicates which Ethernet port is selected (ETH 0 or ETH 1).

Chapter 1 Cisco XR 12404 Router Overview

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Note Because both ports are supported on the PRP, ETH 0 is always on. ETH 1

lights when it is selected.

Figure 1-3 Port Activity LEDs—Partial Front Panel

SLOT-1

SLOT-0

PRIMARY

Cisco XR 12404 Router Installation Guide

LINK

ETH 1ETH 0

PRIMARY

LINK

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Chapter 1 Cisco XR 12404 Router Overview

PRP Auxiliary and Console Ports

The auxiliary and console ports on the PRP are EIA/TIA-232 (also known as RS-232) asynchronous serial ports. These ports connect external devices to monitor and manage the system.

• The auxiliary port—A (male) plug that provides a data terminal equipment

(DTE) interface. The auxiliary port supports flow control and is often used to connect a modem, a channel service unit (CSU), or other optional equipment for Telnet management.

• The console port—A (female) receptacle that provides a data

circuit-terminating equipment (DCE) interface for connecting a console terminal.

PRP Reset Switch

Access to the (soft) reset switch is through a small opening in the PRP front panel (see Figure 1-2). To press the switch, insert a paper clip or similar small pointed object into the opening.

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Caution The reset switch is not a mechanism for resetting the PRP and reloading the

Cisco IOS image. It is intended for software development use only. To prevent system problems or loss of data, use the reset switch only on the advice of Cisco service personnel.

Pressing the reset switch causes a nonmaskable interrupt (NMI) and places the PRP in ROM monitor mode. When the PRP enters ROM monitor mode, its behavior depends on the setting of the PRP software configuration register. For example, if the boot field of the software configuration register is set to:

• 0x0—The PRP remains at the ROM monitor prompt (rommon>) and waits for

a user command to boot the system manually.

• 0x1—The system automatically boots the first Cisco IOS image found in

flash memory on the PRP.

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Route Processor

PRP Alphanumeric Message Displays

The alphanumeric message displays are organized in two rows of four LED characters each (Figure 1-4).

Figure 1-4 Alphanumeric Message Displays—Partial Front Panel

PROCESSOR

Chapter 1 Cisco XR 12404 Router Overview

Upper alphanumeric LED display (four digits)

Lower alphanumeric LED display (four digits)

1-8

H10780

The alphanumeric message displays show router status messages during the boot process, and after the boot process is complete.

• During the boot process, the message displays are controlled directly by the

MBus module.

• After the boot process, the message displays are controlled by Cisco IOS XR

software (through the MBus).

The alphanumeric message displays also provide information about different levels of system operation, including the status of the PRP, router error messages, and user-defined status and error messages

Note A list of all system and error messages appears in the Cisco IOS System Error

Messages publication.

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Chapter 1 Cisco XR 12404 Router Overview

Route Processor

PRP Memory Components

This section describes various types of memory used on the PRP to support router functions. Tab l e 1-1 provides a quick reference of the different types of memory, and Figure 1-5 shows the location on the PRP board.

Table 1-1 PRP Memory Components

Type Size Quantity Description Location

SDRAM 512 MB

1 GB, or 2 GB

SRAM 2 MB (fixed) — Secondary CPU cache memory functions —

NVRAM 2 MB (fixed) — System configuration files, register settings,

Flash

64 MB SIMM 1 Cisco IOS XR boot image (bootflash), crash

memory

Flash disk

64 MB

(PCMCIA)

Flash boot

512 KB 1 Flash EPROM for the ROM monitor program

ROM

1. Default shipping configuration.

1 or 2 Uses 512 MB or 1 GB DIMMs (based on

SDRAM configuration) for main

U15 (bank 1) U18 (bank 2)

Cisco IOS XR software functions

—

and logs

information, and other user-defined files

1 or 2 Cisco IOS XR software images, system

configuration files, and other user-defined files on one or two Flash memory cards

Flash memory card slot 0 and slot 1

—

boot image

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Route Processor

Figure 1-5 PRP Memory Locations

Chapter 1 Cisco XR 12404 Router Overview

Flash

SIMM

PCMCIA slot-1

and slot-2

(behind cover)

U18

SLOT-1

SLOT-0

Bank 2 DRAM DIMMs Bank 1

U15

ETH 1ETH 0 AUX

LINK

CONSOLE

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PERFORMANCE ROUTE PROCESSOR 1 (PRP-1)

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Chapter 1 Cisco XR 12404 Router Overview

PRP SDRAM

The PRP uses Error Checking and Correction (ECC) Synchronized Dynamic Random Access Memory (SDRAM) to store routing tables, protocols, network accounting applications, and to run Cisco IOS software.

Table 1 - 2 lists the DRAM configurations for the PRP. If you are using:

• One DIMM—Bank 1 (U15) must be populated first.

• Two DIMMs—You cannot mix memory sizes; both banks must contain the

same size DIMM.

Table 1-2 PRP DRAM Configurations

Total SDRAM SDRAM Sockets Number of DIMMs

512 MB

1 GB U15 (bank 1)

2 GB U15 (bank 1)

1. Default shipping configuration.

U15 (bank 1) U18 (bank 2)

U18 (bank 2)

Route Processor

One 512 MB DIMM or Two 256 MB DIMMs

One 1 GB DIMM or Two 512 MB DIMMs

Two 1 GB D IMM s

Caution DRAM DIMMs must be 3.3-volt, 60-nanosecond devices only. Do not attempt to

PRP SRAM

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install other devices in the DIMM sockets. To prevent memory problems, use the Cisco approved memory products listed in Ta ble 1 - 2.

Static Random Access Memory (SRAM) provides 2 MB of secondary CPU cache memory. Its principal function is to act as a staging area for routing table updates, and for information sent to and received from the line cards. SRAM is not user-configurable and cannot be upgraded in the field.

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Route Processor

PRP NVRAM

PRP Flash Memory

Chapter 1 Cisco XR 12404 Router Overview

Non-volatile Random Access Memory (NVRAM) provides 2 MB of memory for system configuration files, software register settings, and environmental monitoring logs. Built-in lithium batteries retain the contents of NVRAM for a minimum of 5 years. NVRAM is not user configurable and cannot be upgraded in the field.

Use flash memory to store multiple Cisco IOS XR software and microcode images that you can use to operate the router. You can download new images to flash memory over the network (or from a local server) to replace an existing image, or to add it as an additional image. The router can be booted (manually or automatically) from any of the stored images in flash memory.

Flash memory also functions as a Trivial File Transfer Protocol (TFTP) server to allow other servers to boot remotely from the stored images, or to copy them into their own flash memory.

The system uses two types of flash memory:

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• Onboard flash memory (called bootflash)—Contains the Cisco IOS boot

image

• Flash memory disks (or cards)—Contain the Cisco IOS software image

Table 1 - 3 lists supported flash disk sizes and Cisco part numbers.

Table 1-3 Supported Flash Disk Sizes

Flash Disk Size

64 MB

128 MB MEM-12KRP-FD128=

1 GB MEM-12KRP-FD1G=

1. Standard Type 1 and Type 2 linear flash memory cards also are supported, although they may not have the capacity to meet the configuration requirements of your system.

2. Default shipping configuration.

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Chapter 1 Cisco XR 12404 Router Overview

Supported Line Cards

The Cisco XR 12404 router is shipped with up to three installed line cards and one route processor that provide a variety of network media types. Line card slots and route processors shipped from the factory are based on your order. Figure 1-6 shows the card cage slot locations:

• Line cards can be installed in slots 1 through 3 in the card cage.

• Slot zero (0) is the default slot for the primary route processor.

• The bottom slot is reserved for the consolidated switch fabric (CSF) card.

Note Refer to the software release notes for a current list of supported line cards (see

the “Obtaining Documentation, Obtaining Support, and Security Guidelines”

section on page -xii).

Figure 1-6 Card Slot Locations

Supported Line Cards

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Fabric Alarm

The line cards interface to each other, and to the route processor through the CSF card. Line cards installed in the Cisco XR 12404 router are hot swappable and can be replaced while the router is operating.

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Supported Line Cards

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Figure 1-7 shows examples of single-mode and multimode line cards.

Figure 1-7 Sample Line Cards

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Consolidated Switch Fabric Card

The Cisco XR 12404 router CSF card contains the following functionality:

• Alarm notification and power source monitoring

• Switch fabric synchronized speed interconnections

• Clock and scheduler synchronization signaling

Alarm Functionality

The CSF card alarm functionality provides visual alarm notification of a fault condition. The alarm card function indicates the following condition.

• Alarm status

• CSF MBus

• Alarm MBus status

• Fan fault monitoring

• AC or DC power source status

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• DC PEM status

–

The 5V MBus power supply has been integrated onto the CSF permitting the use of generic PEMs in the chassis. The Cisco XR 12404 router can monitor for the PEM for these conditions:

• The operational status

• Output voltage

• Output current.

• Alarm Output Function

–

The alarm output function is controlled by the software on the route processor. When a signal is received from the route processor the alarm MBus module on the CSF card activates specific LEDs to signal a condition that is critical, major, or minor.

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Consolidated Switch Fabric Card

• LEDs

• CSF MBus Status

• The 5V MBus power supply

• Alarm Status

Chapter 1 Cisco XR 12404 Router Overview

–

LEDs alert you to a condition in the router. The determination of a critical, major, or minor alarm condition is designed into Cisco IOS XR software running on your route processor.

–

Drivers are provided for MBus OK and Fail indication.

–

Consists of a 100 W DC-DC converter.

–

The Alarm output function consists of a group of LEDs and their associated drivers connected to an output port on the alarm MBus module. As directed by the software on the route processor, the alarm MBus module on the CSF card activates specific LEDs. The software which drives these LEDs divides them into three levels, Critical, Major, and Minor. The classification of a critical, major, or minor alarm is determined by Cisco IOS XR software running on the route processor. Each of the three LEDs is a dual LED (for failure redundancy).

–

The OK/Fail pair of LEDs indicate the status of the alarm MBus:

Green indicates that the alarm MBus module is operating properly.

Amber Fail indicates that the alarm MBus has detected an error in itself or with the MBus module.

Power Source Monitoring

The alarm MBus monitors the power supply and signals when there is a condition outside the normal range of operation.

• Power source voltage is not being provided to a component

• A fault exist in the power source or PEM

• A voltage monitor signal is outside the allowable range

• The current monitor signal is outside the allowable range

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Chapter 1 Cisco XR 12404 Router Overview

Switch Fabric Functionality

Switch fabric circuitry provides up to 40 Gbps (full duplex) of synchronized speed interconnections that carries user traffic between line cards or between the route processor and the line cards.

Clock and Scheduler Functionality

The fabric card generates and distributes system-wide clock and cell time synchronization signaling. System clock generation is delivered to the system through the backplane and local clock functions are derived from the system clock.

• System Clock—The system clock synchronizes data transfers between line

cards or between the route processor and a line card through the CSF. The system clock signal is sent to all line cards and the route processor.

• Scheduler—The scheduler handles requests from the line cards for access to

the CSF. When the scheduler receives a request from a line card for CSF access, the scheduler determines when to allow the line card access to the CSF.

Power Entry Modules

The Cisco XR 12404 router chassis supports two hot swappable AC or DC PEMs. The router must be populated with 2 PEMs to meet EMI standards.

Caution Do not mix PEM types in the router. PEMs must be the same type; either both

AC PEMs, or both DC PEMs and PDUs.

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Power Entry Modules

AC PEMs

Chapter 1 Cisco XR 12404 Router Overview

Each AC PEM converts 200 to 240 VAC into -48 VDC, which is distributed through the chassis backplane to all cards, RPs, and the fan assembly.

Figure 1-8 identifies the components of an AC power supply.

Figure 1-8 AC PEM Components

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The status LEDs on the AC PEM provide information about the current operational status of the power supply. Table 1 -4 summarizes the function of these indicators.

Table 1-4 AC-Input PEM LED Indicators

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LED Label Color Function

OUTPUT OK Green PEM is powered on and operating normally.

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Table 1-4 AC-Input PEM LED Indicators (continued)

LED Label Color Function

Input OK Green The AC power source is present and operating

Output Fail Amber Indicates a failure in the PEM.

DC PEMs

Each DC PEM operates from a nominal source DC voltage of -48 to -60 VDC and requires a dedicated 60 amp service.

Figure 1-9 identifies the components of a DC power supply.

Figure 1-9 DC PEM and PDU Components

1 2 3

Power Entry Modules

within the specified limit.

–

1 DC PDU 5 On/Off switch

2 DC PEM 6 PDU captive screws

3 PEM captive screws 7 PDU terminal block

4 Status LEDs

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Fan Tray Assembly

The status LEDs on the DC PEM provide information about the current operational status of the power supply. Table 1 -5 summarizes the function of these indicators.

Table 1-5 DC-Input PEM LED Indicators

LED Label Color Function

Output OK Green PEM is powered on and operating normally.

Input OK Green DC power is present at the PEM input and

Output Fail Amber Indicates a failure in the PEM.

Power Distribution

The backplane distributes power through the Cisco XR 12404 router and to all cards in the card cage. The PEM converts AC power source into –48 VDC. When directed by the route processor or by MBus software, the MBus module turns on the DC-DC converter; the –48 VDC is converted into +2.5 VDC, +3.3 VDC and +5 VDC for all internal voltages required by the cards.

Chapter 1 Cisco XR 12404 Router Overview

within the specified limits.

Power for the fan tray assembly is supplied directly from the backplane. An internal fan tray assembly controller card converts –48 VDC into DC voltage that powers the fans.

Fan Tray Assembly

The Cisco XR 12404 router is equipped with a fan tray assembly located at the side of the chassis. The fan tray assembly maintains acceptable operating temperatures for the internal components by drawing cooling air across the card cage.

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The fan tray assembly is a sheet metal enclosure containing 7 fans and 2 fan controller cards (Figure 1-10).

Fan Tray Assembly

Warning

Exhaust from other equipment vented directly into the Cisco XR 12404 router air inlet can cause an over-heat condition. Install the router so that it is protected from a direct flow of hot air from other equipment.

Figure 1-10 Fan Tray Assembly

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The fan tray assembly draws room air in through the air filter, across the card cage and out through exhaust vents located on the side of the chassis.

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Note Warm air exits at the side of the chassis. Allow sufficient air flow by maintaining

6 inches (15.24 CM) of clearance at both the inlet and exhaust openings on the chassis.

A fan tray assembly controller card monitors the operation of the 7 fans.

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Cable Management System

The Cisco XR 12404 router is set up with two types of cable management systems:

• Line card cable-management bracket (Figure 1-11)—Attached to each line

card and routes the line card cables to the chassis cable management bracket. These brackets keep the cables free of sharp bends and out of the way.

Figure 1-11 RP and Line Card Cable-Management Brackets

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• Chassis cable-management bracket (see Figure 1-12)—Attached to the

chassis and routes the line card cables away from the chassis.

Figure 1-12 Chassis Cable Management Bracket

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Cable-management systems:

• Organize the interface cables on the line cards, route processor, and clock and

scheduler cards as they enter and exit the system.

• Consists of two parts, a card cable-management bracket and a chassis

cable-management bracket.

Caution Excessive bending in an interface cable can cause performance degradation.

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Maintenance Bus

The Cisco XR 12404 router maintenance bus and MBus modules manage all of the maintenance functions of the system. The MBus consists of two separate busses (providing MBus redundancy). Each MBus is linked to all of the following.

• Line cards

• Route Processor

• CSF card

The MBus module located on each component, communicates over the MBus and is powered by +5 VDC directly from the fabric card. The MBus performs the functions of power-on/off control for each component, component (device) discovery, code download, diagnostics, and environmental monitoring and alarms.

Power-On/Off Control

Each MBus module directly controls the DC-to-DC converters on the component it is mounted on based on commands the component receives from its on-board EPROM and from the route processor. Each MBus module is tied directly to +5 VDC from the consolidated fabric card.

When power is applied to the Cisco XR 12404 router, all MBus modules immediately power on. The MBus modules on the route processor and CSF card immediately turn on the DC-to-DC converter, powering up the respective card. The line card MBus module waits to power on the line card until it receives a command from the route processor.

Chapter 1 Cisco XR 12404 Router Overview

Component Discovery

The route processor can determine the system configuration using the MBus. A message is sent from the route processor over the MBus requesting all installed devices to identify themselves. The response back provides component type, line card slot number, and CSF card slot number.

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Chapter 1 Cisco XR 12404 Router Overview

Code Download

A portion of the line card operating software can be downloaded from the route processor to the line card over the MBus. Because the MBus is relatively slow compared to the CSF, only enough code is downloaded to the line card for it to access the CSF and complete the download process.

Diagnostics

The diagnostic software image is downloaded from the route processor to the line card during the test sequence.

Environmental Monitoring and Alarms

The MBus module on each component monitors that component’s environment as follows.

• Line cards and the route processor are monitored for temperature by two

temperature sensors mounted on each card. The MBus module makes voltage monitoring through software; for example the +2.5 VDC, +3.3 VDC, and +5 VDC DC-to-DC converters.

• The CSF card is monitored for temperature by two temperature sensors

mounted on the card. The MBus module performs voltage monitoring through software (for example, the +2.5 VDC and +3.3 VDC).

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• Voltage monitoring the for +5 VDC, for example; is made by the alarm MBus

module on the CSF card.

• Environmental monitoring includes voltage and current monitoring,

temperature monitoring, and sensing for fan power and RPM.

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Maintenance Bus

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CHAPTER

Preparing for Installation

This chapter provides specific information about preparing your site for the installation of the Cisco XR 12404 Router. Included in this chapter are:

• Tools and Equipment, page 2-2

• Safety and Compliance, page 2-2

• Safety with Electricity, page 2-8

• Installation Site Requirements, page 2-8

• Unpacking and Repacking the Cisco XR 12404 Router, page 2-16

• Transporting a Cisco XR 12000 Series Router, page 2-17

• Site Preparation Checklist, page 2-17

Before installing the Cisco XR 12404 Router, you should consider the following:

• Power and cabling requirements that must be in place at your installation site

• Equipment you will need to install the router

• Environmental conditions your installation site must meet to maintain normal

operation.

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Note Do not unpack the router until you are ready to install it.

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Tools and Equipment

The Cisco XR 12404 Router is designed to be installed with a minimum number of tools. The following tools are required.

• 1/4-inch flat-blade screwdriver

• 3/16-inch flat-blade screwdriver

• 9/16-inch wrench

• 10-mm wrench (either open-end or socket)

• 2-mm allen wrench

• ESD-preventive wrist or ankle strap

• Antistatic mat

• Tape measure

• Wire cutters

• Pliers

Chapter 2 Preparing for Installation

Safety and Compliance

The following guidelines will help to ensure your safety and protect the equipment. This list is not inclusive of all potentially hazardous situations, so be alert.

• General Safety Guidelines, page 2-3

• Preventing Electrostatic Discharge Damage, page 2-4

• Laser Safety, page 2-6

• Lifting Guidelines, page 2-6

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General Safety Guidelines

The following are some general safety guidelines you should be aware of when installing or maintaining the Cisco XR 12404 Router.

• Never attempt to lift an object that might be too heavy for you to lift by

yourself.

• Always disconnect the power source and unplug all power cables before

lifting, moving or working on the router.

• Keep the work area clear and dust free during and after installation.

• Keep tools and router components away from walk areas.

• Do not wear loose clothing, jewelry (including rings and chains), or other

items that could get caught in the router.

• Fasten your tie or scarf and sleeves.

• Cisco equipment operates safely when it is used in accordance with its

electrical ratings and product usage instructions.

• Do not work alone if potentially hazardous conditions exist.

• Always unplug the power cables when performing maintenance or working

on the router, unless the replacement part is capable of online insertion and removal, hot swappable.

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• The installation of the router should be in compliance with national and local

electrical codes: in the United States, National Fire Protection Association (NFPA) 70, United States National Electrical Code; in Canada, Canadian Electrical Code, part I, CSA C22.1; in other countries, International Electrotechnical Commission (IEC) 364, part 1 through part 7.

• Before installing, configuring, or maintaining the router, review the safety

warnings listed in the document Regulatory Compliance and Safety Information for the Cisco XR 12000 Series Routers).

• A Cisco XR 12404 Router configured with the AC power entry module

(PEM) are shipped with a three-wire electrical grounding-type plug that will only fit into a grounding-type power outlet. This is a safety feature. The equipment grounding should be in accordance with local and national electrical codes.

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Safety and Compliance

• A Cisco XR 12404 Router configured with a DC PEM requires a dedicated

35–Amp DC circuit breaker for the DC power source. This circuit breaker should protect against short-circuit and overcurrent faults in accordance with United States National Electrical Code NFPA 70 (United States), Canadian Electrical Code, part I, CSA C22.1; CSA C22.2 No. 0 (Canada) and IEC 364 (other countries).

• Only a DC power source that complies with the safety extra-low voltage

(SELV) requirements in UL60950, CSA 60950, EN60950, and IEC 60950 can be connected to a Cisco XR 12404 Router DC PEM.

• A Cisco XR 12404 Router configured with a DC PEM is to be installed in a

restricted access area and in accordance with Articles 110–18, 110–26, and 110–27 of the National Electric Code, ANSI/NFPA 70.

• A Cisco XR 12404 Router configured with a DC power distribution unit

(PDU) shall have a readily accessible disconnect device incorporated in the fixed wiring.

Compliance and Safety Information

Chapter 2 Preparing for Installation

The Cisco XR 12404 Router is designed to meet the regulatory compliance and safety approval requirements. Refer to the Regulatory Compliance and Safety Information for the Cisco XR 12000 Series Routers.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) damage to circuit boards can occur if they are handled improperly. Such mishandling can result in intermittent or complete failures of the board.

When handling circuit boards, observe the following guidelines to prevent ESD damage.

• Always use an ESD-preventive ankle or wrist strap and ensure that the strap

makes adequate contact with your skin.

• The ankle or wrist strap protects equipment from ESD voltages on the body

only; ESD voltages on clothing can still cause damage to electronic components.

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Attaching an ESD-Preventive Strap

Attach an ESD antistatic strap to your body and to an open metal part of the chassis on the Cisco XR 12404 Router (Figure 2-1).

Figure 2-1 Attaching an ESD-Preventive Strap to the Cisco XR 12404

Router Chassis

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Caution Periodically check the resistance value of the antistatic ankle or wrist strap. The

resistance measurement should be between 1 and 10 megohms.

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Safety and Compliance

Laser Safety

Chapter 2 Preparing for Installation

Single-mode style line cards for the Cisco XR 12404 Router are equipped with lasers, which emit invisible radiation. Do not stare into open line card ports.

Warning

Avoid exposure to laser radiation. Do not stare into an open apertures, because invisible laser radiation may be emitted from the aperture when a cable is not inserted in the port.

Lifting Guidelines

A fully configured Cisco XR 12404 Router weighs approximately 100 pounds (45.36 kg). Before you install the router, ensure that your site is properly prepared so you can avoid having to move the router later to accommodate power source and network connections (Figure 2-2).

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Figure 2-2 Lifting a Cisco XR 12404 Router

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Each time you lift any heavy assembly, refer to these lifting guidelines:

• Never attempt to lift an object that might be too heavy for you to lift by

yourself

• Have a second person available to help lift the assembly

• Ensure that your footing is solid; balance the weight of the object between

your feet

• Lift the assembly slowly; never move suddenly or twist your body as you lift

• Keep your back straight and lift with your legs, not your back

• If you must bend down to lift the assembly, bend at the knees, not at the waist,

to reduce the strain on your lower back muscle

• Always disconnect the power source and unplug all power cables before

lifting, moving or working on the router

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Safety with Electricity

Most Cisco XR 12404 Router field replaceable units (FRUs) support online insertion and removal (OIR), which means an FRU is hot-swappable and can be removed and replaced while the system is operating without presenting an electrical hazard or damage to the system.

Installation Site Requirements

This section provides site requirement guidelines that you must consider before installing the Cisco XR 12404 Router.

Rack-Mounting and Ventilation Guidelines

Before installing the Cisco XR 12404 Router in a rack, consider the following general rack-mounting guidelines.

As you face the rear of the chassis, the fan tray assembly is located on the right side. Air flow to the air filter and fan tray assembly should not be blocked.

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Note Warm air exhaust at the side of the chassis through the fan tray. Allow sufficient

air flow by maintaining 6 inches (15.24 CM) of clearance at both the inlet and openings on the chassis.

• A ventilation system that is too powerful in an enclosed rack can also prevent

cooling by creating negative air pressure around the chassis and redirecting the air away from the air intake vent. If necessary, operate the router with the rack door open or in an open rack.

• The correct use of baffles inside an enclosed rack can assist in cooling the

router.

• Equipment located near the bottom of the rack can generate excessive heat

that is drawn upward and into the intake ports of equipment above, leading to possible overheat conditions.

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Rack Mounting Clearance

The rack-mounting hardware included with the Cisco XR 12404 Router is suitable for most 19 inch equipment racks.

The following are rack-mounting guidelines for the Cisco XR 12404 Router.

• If you use a standard 19 inch racks be sure that the rack is bolted to the floor.

The chassis mounts to the two rack posts, and the rest of the chassis is cantilevered off of the posts.

• Ensure that the weight of the Cisco XR 12404 Router does not make the rack

unstable.

• Some racks are secured to ceiling brackets, if necessary, because of the

weight of the equipment in the rack. Make sure that the rack you are installing the Cisco XR 12404 Router in is secured.

• For the enhanced model of the Cisco XR 12404 Router, the mounting rails on

a 4-post rack must be recessed no more than 1.5 inches for the front door to fully open and close and to provide adequate room for cable routing.

Installation Site Requirements

Multiple Routers in a Rack

One of the unique features of the Cisco XR 12404 Router is its size. Up to 8 Cisco XR 12404 Routers can fit in a standard 19 inch equipment rack. When placing multiple routers in a rack, ensure there is sufficient ventilation to accommodate the router.

The heated exhaust air from other equipment can enter the inlet air vents and cause an overtemperature condition inside the router.

• Install and use the line card brackets and chassis cable-management bracket

included with the router to keep cables organized and out of the way of line cards.

• Ensure that cables from other equipment do not interfere with access to the

card cage, or require you to disconnect cables unnecessarily to perform equipment maintenance or upgrades.

• When mounting the router in a four-post type rack, be sure to use all of the

screws provided to secure the chassis to the rack posts.

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Installation Site Requirements

Figure 2-3 shows the outer dimensions of the Cisco XR 12404 Router chassis with

the front door installed.

Figure 2-3 Cisco XR 12404 Router Chassis Outer Dimensions—Top View

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Environmental Guidelines

This section offers guidelines for operating your Cisco XR 12404 Router in various environments; airflow, temperature and humidity, power source, AC and DC powered routers, grounding connections and site wiring. To assure normal operation and avoid maintenance difficulty, plan and prepare your site before you install the router.

Airflow

The Cisco XR 12404 Router air circulation system consists of 1 fan tray assembly mounted at the side of the chassis. The fan tray assembly maintains acceptable operating temperatures for the internal components by drawing cooling air in through a replaceable air filter, located on the right side of the chassis.

Air circulates through the card cage, and exhausts at the side of the chassis (Figure 2-4).

• Allow sufficient air flow by maintaining 6 inches (15.24 cm) of clearance at

both the inlet and exhaust openings on the chassis.

• The site should be as dust-free as possible. Dusty environments can clog the

air filter, reducing the cooling airflow through the system. This can cause an over temperature condition in the router.

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Under extreme environment conditions, the environmental monitoring system will shut down the power to protect the system components.

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Installation Site Requirements

Figure 2-4 Cisco XR 12404 Router Air Circulation System

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Temperature and Humidity

The operating environmental site requirements are listed in Appendix A. The temperature and humidity ranges listed are those within which the router will continue to operate. You can maintain normal operation by anticipating and correcting environmental irregularities before they approach critical values.

The environmental monitoring functionality built into the router protects the system and components from potential damage from overvoltage and overtemperature conditions.

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Power Connection Guidelines

The Cisco XR 12404 Router requires an AC PEM or a combination DC PDU and DC PEM. Site requirements differ depending on the type of power source voltage. We recommend you follow these precautions and recommendations when planning power source connections to your router.

• Check the power at your site before installation and periodically after

installation to ensure that you are receiving clean power from the power source.

• If necessary, install a power conditioner.

• Install proper grounding, or use the proper grounding receptacle located on

the side of the chassis, to avoid damage from lightning and power surges.

AC-Powered Routers

A Cisco XR 12404 Router configured with two AC PEMs, are shipped with a three-wire electrical grounding-type plug that will only fit into a grounding-type power outlet. This is a safety feature. The equipment grounding should be in accordance with local and national electrical codes.

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At sites where the Cisco XR 12404 Router operates with AC PEMs, observe the following guidelines (Figure 2-3):

• A power factor corrector (PFC) allows the PEM to accept AC power source

voltage from an AC power source operating between 100 to 120 VAC, 15–Amp service in North America; and a range of 185 to 264 VAC, 10–Amp service, in an international environment.

• All AC PEM power cords measure 14 feet (4.3 meters).

• Provide a dedicated power source for each PEM installed in the router.

• Install an uninterruptable power source where possible.

Caution Use the North American plug L6-20 20A only on 240 volt systems.

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Installation Site Requirements

Figure 2-5 Cisco XR 12404 Router AC Power Plugs

Chapter 2 Preparing for Installation

North American plug

L6-20 20A

(for 240V units)

North American plug

5-15 15A

Australian plug

AS 3112 10A

Italian plug

CEI 23-16/VII 10A

European plug

CEE 7/7 16A

United Kingdom plug

BS 1363 13A

Power Connection Guidelines for DC-Powered Routers

When the Cisco XR 12404 Router operates with a DC PDU, observe these guidelines:

• A Cisco XR 12404 Router configured with a DC PDU and DC-input PEMs has

a maximum power rating of 35A per power module and requires a dedicated DC power source to support this maximum current. The facility DC source circuit breaker protection needs to comply with safety local codes and regulations. This circuit breaker protects against short-circuit and overcurrent faults in accordance with United States National Electrical Code NFPA 70 (United States), Canadian Electrical Code, part I, CSA C22.1 (Canada), and IEC 364 (other countries).

66969

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• DC power cable leads should be #6 American Wiring Gauge (AWG)

high-strand-count wire.

• Provide a dedicated power source for each power entry module installed in

the router.

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Chapter 2 Preparing for Installation

• Install an uninterruptable power source where possible.

Grounding Connections

Before you connect power or turn on your Cisco XR 12404 Router, you must provide an adequate system ground for the router. The equipment grounding should be in accordance with local and national electrical codes.

For installations other than in a network equipment building system (NEBS) environment, you may chose to rely on the safety earth ground connection supplied via the International Electrotechnical Commission (IEC) 320 inlets for AC-powered units and the main terminal block ground connection for DC-powered units.

Site Wiring

This section offers site wiring guidelines for setting up the plant wiring and cabling at your site. When planning the location of the new system, consider the following:

Installation Site Requirements

• Electromagnetic interference (EMI)

• Distance limitations for signaling and unshielded conductors

Electromagnetic Interference

Electromagnetic interference can occur between the signal on the wires and external or ambient EMI fields when the wires are run for any significant distance. This fact has two implications for the construction of plant wiring.

• Bad wiring practice can result in radio interference emanating from the plant

wiring.

Warning

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Strong EMI, especially when it is caused by lightning or radio transmitters, can destroy the signal drivers and receivers in the Cisco XR 12404 Router, and can create an electrical hazard by conducting power surges through lines and may cause damage to the equipment.

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Unpacking and Repacking the Cisco XR 12404 Router

Note To predict and remedy strong EMI, you may need to consult experts in

radio frequency interference (RFI).

If you use twisted-pair cable in your plant wiring with a good distribution of grounding conductors, the plant wiring is unlikely to emit radio interference. If you exceed the recommended distances, use a high-quality twisted-pair cable with one ground conductor for each data signal when applicable.

Distance Limitations

If wires exceed recommended distances, or if wires pass between buildings, give special consideration to the effect of a lightning strike in your vicinity. The electromagnetic pulse (EMP) caused by lightning or other high-energy phenomena can easily couple enough energy into unshielded conductors to destroy electronic devices. If you have had problems of this sort in the past, you may want to consult experts in electrical surge suppression and shielding.

Most data centers cannot resolve the infrequent but potentially catastrophic problems just described without pulse meters and other special equipment. These problems can cost a great deal of time to identify and resolve, so take precautions by providing a properly grounded and shielded environment, with special attention to issues of electrical surge suppression.

Chapter 2 Preparing for Installation

Unpacking and Repacking the Cisco XR 12404 Router

The shipping package for Cisco XR 12000 Series Routers is engineered to reduce the potential of product damage associated with routine material handling experienced during shipment. To minimize potential damage to the product, transport these products in their Cisco-specified packaging. Failure to do so may result in damage to the router or degradation of its performance. Also, do not remove the Internet router from its shipping container until you are ready to install it. The router should always be transported or stored in an upright position. Keep the router in the shipping container until you have determined where you will install it.

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Chapter 2 Preparing for Installation

Transporting a Cisco XR 12000 Series Router

If you do not receive everything you ordered, contact a customer service representative for assistance. See the section titled, “Obtaining Documentation,

Obtaining Support, and Security Guidelines” section on page -xii.

Transporting a Cisco XR 12000 Series Router

Site Preparation Checklist

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Your Cisco XR 12404 Router is shipped with a site log(Tabl e 2-1). Keep your site log in a location near the router where anyone who performs tasks can have access to it. Site log entries might include the following.

• Installation Progress—Make entries in the site log to record installation

progress. You can note any difficulties encountered and remedies during the installation process.

• Upgrades, Removals, and Replacement Procedures—Use the site log as a

record of system maintenance and expansion history.

–

FRU installed, removed, or replaced

–

Cisco XR 12404 Router configuration changes

–

Software upgrades

–

Corrective or preventive maintenance procedures performed

–

Intermittent problems

–

Yo u r c o m m e n t s

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Site Preparation Checklist

Chapter 2 Preparing for Installation

Table 2 - 1 shows a sample site log. You can make copies of the sample or design

your own site log.

Table 2-1 Sample Site Log

Date Description of Action Performed or Symptom Observed Initials

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Site Preparation Checklist

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CHAPTER

Installing the Router

This chapter describes how to install a Cisco XR 12404 Router. It includes the following sections:

• Installing a Cisco XR 12404 Router, page 3-2

• Connecting RP and Line Card Cables, page 3-12

• Connecting to the Console Port and Auxiliary Ports, page 3-14

• Connecting to an AC Power Source, page 3-23

• Connecting to a DC Power Source, page 3-25

• Powering on the Router for the First Time, page 3-28

• External Network Interface, page 3-32

• Manually Booting the System, page 3-32

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Chapter 3 Installing the Router

Required Tools

You need the following items to install the Cisco XR 12404 Router:

• Number 2 Phillips screwdriver

• Small flat-bladed screwdriver

• Tape measure (optional)

• Level (optional)

Installing a Cisco XR 12404 Router

This section provides the procedures for installing the Cisco XR 12404 Router in a rack or on a flat surface. It contains the following procedures:

• Installing the Rack-Mounting Brackets—Optional

• Installing the Chassis in a Rack

• Installing the Chassis on a Tabletop or Flat Surface

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Your installation site should already be prepared before you begin installing the router. For complete information about site preparation see Chapter 2, “Preparing

for Installation.”

Make sure that you have considered the following before you install the router:

• Mounted at the left side of the chassis is the fan tray, the exhaust vents should

not be blocked.

• Facing the rear of the router, mounted on the left side is the air filter; air flow

to the air filter should not be blocked.

• 24 inches (61 centimeters) of clearance in front of the chassis may be needed

for working with line cards, attaching Network Interface Cables (NICs), the CSF or the RP.

• Location is temperature-controlled, air-conditioned and dust-free.

• Power cables and power supplies have been checked for compatibility with

your power service.

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Chapter 3 Installing the Router

Installing a Cisco XR 12404 Router

• Labels on the equipment have been checked to ensure that the power service

at your site is suitable for the Cisco XR 12404 Router.

• AC and DC power source voltage receptacles are easy to reach.

Installing the Rack-Mounting Brackets—Optional

The rack-mounting brackets temporarily bear the weight of the router while it is being positioned in the rack.

While the use of the rack-mounting is optional, installing them makes it much easier to mount the router in a rack, and also ensures that the router is level. The rack-mounting brackets can be left in place following the router installation.

Warning

Two or more people should install the router to minimize the risk of personal injury and damage to the equipment.

Refer to Figure 3-1 and use the following procedure to install the rack-mounting brackets.

Step 1 Measure and mark the hole at the same height on both the left and right rack rails.

Step 2 Hold the right bracket against the right mounting rail and align the bottom screw

hole in the bracket with the marked screw hole.

Step 3 While supporting the bracket against the mounting rail with one hand, use the

other hand to insert a screw through a hole in the rack-mounting bracket.

Step 4 Finger-tighten the screw.

Step 5 Insert a second screw in the top hole in the bracket and finger tighten the screw.

Step 6 Mount the left rack-mounting bracket the same as you mounted the right bracket.

Step 7 Measure the two brackets to ensure they are positioned at the same height.

Step 8 Use a level to ensure the tops of the two brackets are level, or use a measuring tape

to ensure that each bracket is the same distance from the top of both rack rails.

Step 9 Use a screwdriver to tighten all the screws (Figure 3-1).

3-3

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Chapter 3 Installing the Router

Figure 3-1 Rack-Mounting Brackets

1 1/4"

2 1/2"

1/16" sheet metal

3 3/8"

3/4"

Left mounting rail Right mounting rail

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Chapter 3 Installing the Router

Installing a Cisco XR 12404 Router

Installing the Center-Mounting Brackets—Optional

If you plan to install the Cisco XR 12404 Router in the center-mounting position, you must first install the center-mounting brackets on the equipment rack rails, then secure the chassis to the center-mounting brackets. If you do not plan to use the optional center-mounting brackets, proceed directly to the “Installing the

Chassis in a Rack” section on page 3-7.

The optional center-mounting bracket installation kit ships in an accessories box included in the Cisco XR 12404 Router shipping container.

Refer to Figure 3-2 and use the following procedure to install the optional center-mounting brackets.

Step 1 Measure and mark the hole at the same height on both the left and right posts.

Step 2 Hold the right bracket against the right rack rail and align the bottom screw hole

in the bracket with the marked screw hole.

Step 3 While supporting the bracket against the rack rail with one hand, use the other

hand to insert a screw through a hole in the center-mounting bracket that aligns with a hole on the rack rail.

3-5

Step 4 Use your fingers to tighten the screw.

Step 5 Insert a second screw in the top hole in the bracket and finger tighten the screw.

Step 6 Use a screwdriver to tighten all the screws.

Step 7 Mount the left center-mounting bracket so that it is at the same height as the right

bracket.

Step 8 Use a level to ensure the two brackets are level; or use a measuring tape to ensure

the both center-mounting brackets are the same distance from the top of both rack mounting rails.

Step 9 Use a screwdriver to tighten all the screws.

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Chapter 3 Installing the Router

Figure 3-2 Center-Mounting Brackets

Installing a Cisco XR 12404 Router

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Installing a Cisco XR 12404 Router

Installing the Chassis in a Rack

Use the following procedure to install the Cisco XR 12404 Router in a rack.

Chapter 3 Installing the Router

Warning

Step 1 Move the router as close to the installation location as possible without interfering

Two or more people should install the router to minimize the risk of personal injury and damage to the equipment.

with the installation process.

Step 2 With one person lifting from the front and one from the rear of the chassis, lift the

chassis off the pallet and position the chassis in the rack.

Note A third person might be needed to assist in lifting and positioning the

chassis in the rack, or to install the screws once the chassis is in position.

Step 3 Install the screws to secure the chassis to the rack

a. Look at the bottom mounting holes on the chassis. Align one of the holes with

a mounting hole in the rack.

b. Install one of the mounting screws provided.

c. On the other side of the chassis adjust the position of the chassis so that the

same mounting hole in the bottom group of mounting holes is aligned with a hole in the rack.

d. Install one of the mounting screws provided.

Step 4 Repeat Step 3a through Step 3d for additional mounting holes.

3-7

Step 5 Use a screwdriver to tighten all the screws.

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Chapter 3 Installing the Router

Supplemental Bonding and Grounding Connections

Installing the Chassis on a Tabletop or Flat Surface

Use the following procedure to install the Cisco XR 12404 Router on a tabletop or other stable flat surface.

Step 1 Move the router as close to the installation location as possible.

Step 2 With one person positioned at the front and rear of the chassis, lift the chassis off

of the pallet and position the chassis on the flat surface.

Step 3 Secure the chassis to the flat surface to ensure it does not fall off.

You can use the same mounting hardware that secured your router to the shipping pallet to secure the chassis to the flat surface.

Supplemental Bonding and Grounding Connections

If you are not installing the Cisco XR 12404 Router in a NEBS environment, you can choose to bypass these guidelines and rely on the safety earth ground connection supplied via the 5-15 15A North American plug to the AC-powered PEMs, and the main terminal block ground connection for DC-powered PEMs.

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• On Cisco XR 12404 Routers configured for AC-input operation, the AC PDU

is equipped with a three-wire electrical grounding-type connector that accept three-wire, grounding-type AC power cords such as the power cords shipped with the router. This is a safety feature.

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3-8

Supplemental Bonding and Grounding Connections

• On Cisco XR 12404 Routers configured for DC-input operation, the DC PDU

is equipped with a DC power connector block with wire-connection terminals for connecting the negative lead (top terminal), the positive lead (middle terminal), and the ground lead (bottom terminal). This is a safety feature.

Note Cisco XR 12404 Router grounding architecture conforms to the DC-I

(DC-isolated) method of grounding as described in Telcordia GR-1089-CORE. A DC-I architecture means that there is no connection between the DC return terminal and the frame ground. DC return and frame ground are isolated from one another at the router.

If the router is installed in a NEBS environment, we strongly recommend that you connect the central office ground system or interior equipment grounding system to the supplemental bonding and grounding point on the router chassis. This grounding point consists of threaded inserts is located on the side of the chassis near the back of the chassis (see Figure 3-3). It is also referred to as the NEBS bonding and grounding receptacle, and is intended to satisfy the Telcordia NEBS requirements for supplemental bonding and grounding connections.

Chapter 3 Installing the Router

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Figure 3-3 Supplemental Bonding and Grounding Port for NEBS

Compliance

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Chapter 3 Installing the Router

Use a cable lug with two holes at 0.63" (16 mm) centers to connect to the chassis with two 6.3 mm (M6) screws as shown in Figure 3-4. The lug can be ordered from Cisco (Part Number 32-0607-01).

Figure 3-4 Cable Lug

End View

Supplemental Bonding and Grounding Connections

All measurements in inches

2.24

0.48

Ø 0.267

2 holes

Crimp area

0.25 0.370.63

0.08

The dual-hole lug is crimped onto a grounding wire of a wire size and length determined by your router location and facility environment. The crimping tool shown in Figure 3-5 is a standard crimping tool obtainable from any normal hardware source.

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Supplemental Bonding and Grounding Connections

Figure 3-5 Crimping the Lug

Chapter 3 Installing the Router

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Place ground wire in the lug

Cisco XR 12404 Router Installation Guide

Crimp the lug

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Chapter 3 Installing the Router

Connecting RP and Line Card Cables

Use the following procedure to connect RP and line card cables to the router.

Step 1 Proceeding from left to right identify the network interface cable that connects to

each card port.

Step 2 Connect the network interface cables:

a. Carefully route the identified cable through the cable-management tray and

over to the card interface port; connect one cable at a time (Figure 3-6).

b. Proceeding from left to right carefully wrap the cables using the velcro straps.

Figure 3-6 RP and Line Card Cable-Management Brackets

Line card

cable management

TIV

bracket

Connecting RP and Line Card Cables

OC-12/STM

-4 POS

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interface

cables

Velcro

OC-12/STM

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57803

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Connecting RP and Line Card Cables

Caution Carefully adjust the interface cable in the RP or line card cable-management

bracket to prevent any kinks or sharp bends in the interface cable. Kinks and sharp bends can destroy or degrade the ability of the optical fiber to propagate the signal-encoded beam of light accurately from one end of the cable to the other. Also, allow adequate strain relief in the interface cable.

Step 3 Route the cable to the chassis cable-management bracket mounted to the left side

of the chassis (Figure 3-7).

• Use the screws packaged with the chassis cable management bracket kit.

Figure 3-7 Chassis Cable-Management Bracket

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Connecting to the Console Port and Auxiliary Ports

This section provides the information to connect a console to the router. Both Data Set Ready (DSR) and Data Carrier Detect (DCD) signals are active when the system is running. The console port does not support modem control or hardware flow control. The console port requires a straight-through EIA/TIA-232 cable.

The system console port on the PRP is a DCE RJ-45 receptacle for connecting a data terminal, which you must configure. The console port is labeled Console, as shown in Figure 3-8.

Note To comply with Telcordia GR-1089 NEBS standard for electromagnetic

compatibility and safety, connect all console, auxiliary, Ethernet, and BITS interfaces only to intrabuilding or non-exposed wiring or cabling. The intrabuilding cable must be shielded and the shield must be grounded at both ends.

Check your terminal’s documentation to determine the baud rate of the terminal you plan to use. If your documentation does not specify settings use the following terminal settings:

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1. Baud to 9600

2. Data bits to 8

3. Parity to no parity

4. Stop bits to 2

The console port requires a straight-through RJ-45 cable.

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Connecting to the Console Port and Auxiliary Ports

Figure 3-8 PRP Console and Auxiliary Port Connections

Chapter 3 Installing the Router

PRIMARY

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PRIMARY

ETH 1ETH 0 AUX

CONSOLE

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1 Modem 4 Auxiliary port

2 Console terminal 5 Console port

3 RJ-45 Ethernet cables

Note The console and auxiliary ports are both asynchronous serial ports; any devices

connected to these ports must be capable of asynchronous transmission. (Asynchronous is the most common type of serial device; for example, most modems are asynchronous devices.)

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Chapter 3 Installing the Router

PRP Console Port Signals

The console port on the PRP is a DCE RJ-45 receptacle. Tab le 3- 1 lists the signals used on this port.

Table 3-1 PRP Console Port Signals

Console Port Pin Signal Input/Output Description

2 DTR Output Data Terminal Ready

3 TxD Output Transmit Data

4 GND — Signal Ground

5 GND — Signal Ground

6 RxD Input Receive Data

7 DSR Input Data Set Ready

1. These pins are not connected.

Connecting to the Console Port and Auxiliary Ports

—— —

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Installing a Flash Memory Card

PRP Auxiliary Port Signals

The auxiliary port on the PRP is a DTE, RJ-45 plug for connecting a modem or other DCE device (such as a CSU/DSU or another router) to the router. The port is labeled Aux, as shown in Figure 3-8. The asynchronous auxiliary port supports hardware flow control and modem control. Ta bl e 3- 2 lists the signals used on the auxiliary port.

Table 3-2 PRP Auxiliary Port Signals

Auxiliary Port Pin Signal Input/Output Description

1 RTS Output Request To Send

2 DTR Output Data Terminal Ready

3 TxD Output Transmit Data

4 GND — Signal Ground

5 GND — Signal Ground

6 RxD Input Receive Data

7 DSR Input Data Set Ready

8CTSInputClear To Send

Chapter 3 Installing the Router

Installing a Flash Memory Card

By default, a Flash memory card containing a valid Cisco IOS XR software image is inserted in bottom slot, PCMCIA slot 0 before the router is shipped.

Note PCMCIA slot 0 is the bottom slot and slot 1 is the top slot. Both Flash memory

card slots on each RP can be used at the same time.

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Chapter 3 Installing the Router

The software configuration register is set to 0x0102, which causes the router to boot automatically from the Cisco IOS XR software image stored on the Flash memory card.

• The Flash memory card that shipped with your system is installed in the

Figure 3-9 Flash Memory Card Slots

Connecting the PRP to an Ethernet Network

bottom slot, PCMCIA slot 0 of the RP (Figure 3-9).

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AUX

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Ensure that a console terminal is connected to the RP console port and turned on, or that you have a remote login to the router from another device through a telnet session.

Connecting the PRP to an Ethernet Network

The PRP includes two 10/100 Mbps Ethernet ports, each using an 8-pin RJ-45 receptacle for either IEEE 802.3 10BASE-T (10 Mbps) or IEEE 802.3u 100BASE-TX (100 Mbps) connections. The transmission speed of the Ethernet ports is auto-sensing by default and is user configurable.

To connect cables to the PRP Ethernet interfaces (ports labeled ETH0 and ETH1), attach the Category 5 UTP cable directly to a RJ-45 receptacle on the PRP.

Note The Ethernet interfaces on the PRP are end-station devices, not repeaters;

therefore, you must connect an Ethernet interface to a repeater or hub.

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Connecting the PRP to an Ethernet Network

RJ-45 cables are not available from Cisco Systems, but are available from outside commercial cable vendors.

Note Only connect cables that comply with EIA/TIA-568 standards. See Table 3 -4 and

Table 3 - 5 for cable recommendations and specifications.

Note To comply with Telcordia GR-1089 NEBS standard for electromagnetic

compatibility and safety, connect all console, auxiliary, and Ethernet interfaces only to intrabuilding or non-exposed wiring or cabling. The intrabuilding cable must be shielded and the shield must be grounded at both ends.

Caution The Ethernet ports are primarily used as a Telnet port into the Cisco XR 12000

Series Router, and for booting or accessing Cisco IOS XR software images over a network to which an Ethernet port is directly connected. Cisco Express Forwarding (CEF) functions are switched off by default for security reasons. Cisco strongly cautions you to consider the security implications of switching on CEF routing functions on these ports.

Chapter 3 Installing the Router

3-19

Figure 3-10 is an example of the functionality of an Ethernet port. In this example,

you cannot access Network 2.0.0.0 through the Ethernet port (ETH0) on the PRP in router A; you can only access the hosts and router C, which are in Network

1.0.0.0 (see dotted arrows in Figure 3-10).

To access Network 2.0.0.0 from router A, you must use an interface port on one of your line cards (in this example, a Packet-over-SONET (POS) line card in router A) to go through router B, through router C, and into Network 2.0.0.0 (see solid arrows in Figure 3-10).

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Chapter 3 Installing the Router

Figure 3-10 Using the Ethernet Port on the PRP

Connecting the PRP to an Ethernet Network

Router A

(Cisco 12000 series)

POS

Router B

(Cisco 7500 series)

PRP Ethernet Connections

Figure 3-11 shows a PRP RJ-45 receptacle and cable connectors. The RJ-45

connection does not require an external transceiver. The RJ-45 connection requires Category 5 unshielded twisted-pair (UTP) cables, which are not available from Cisco Systems, but are available from commercial cable vendors. Table 3 -3 lists the port pinouts for the RJ-45 receptacle.

Network 1.0.0.0

Host A

Host B

Router C

(Cisco 7500 series)

Network 2.0.0.0

Host A

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Figure 3-11 RJ-45 Receptacle and Plug (Horizontal Orientation)

8 7 6 5 4 3 2 1

RJ-45 connector

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Connecting the PRP to an Ethernet Network

Chapter 3 Installing the Router

Warning

The ports labeled Ethernet, 10BASE-T, Token Ring, Console, and AUX are safety extra-low voltage (SELV) circuits. SELV circuits should only be connected to other SELV circuits. Because the BRI circuits are treated like telephone-network voltage, avoid connecting the SELV circuit to the telephone network voltage (TNV) circuits.

Table 3-3 PRP RJ-45 Ethernet Receptacle Pinout

Ethernet Port Pin Signal Description

1 TxD+ Transmit data +

2 TxD– Transmit data –

3 RxD+ Receive data +

4 Termination Network No connection

5 Termination Network No connection

6 RxD– Receive data –

7 Termination Network No connection

8 Termination Network No connection

Depending on your RJ-45 cabling requirements, use the cable pinouts shown in

Figure 3-12 or Figure 3-13.

3-21

Figure 3-12 Straight-Through Cable Pinout—Connecting MDI Ethernet Port

to MDI-X Wiring

MDI-X wiringMDI wiring

1 TxD+

2 TxD–

3 RxD+

6 RxD–

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1 RxD+

2 RxD–

3 TxD+

6 TxD–

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Figure 3-13 Crossover Cable Pinout (for Connecting Two PRPs)

Connecting the PRP to an Ethernet Network

PRP

1 TxD+

2 TxD–

3 RxD+

6 RxD–

PRP

1 TxD+

2 TxD–

3 RxD+

6 RxD–

75431

Table 3 - 4 lists the cabling specifications for 100-Mbps transmission over

unshielded twisted-pair (UTP) cables.

Note The transmission speed of the Ethernet ports is auto-sensing by default and is user

configurable.

Table 3-4 Specifications and Connection Limits for 100-Mbps

Tr a n s m i s s i o n

Parameter RJ-45

Cable specification Category 5

UTP, 22 to 24 AWG

Cable length (max) —

Segment length (max) 328 feet (100 m) for 100BASE-TX

Network length (max) 656 feet (200 m)

1. EIA/TIA-568 or EIA-TIA-568 TSB-36 compliant. Not supplied by Cisco.

2. AWG = American Wire Gauge. This gauge is specified by the EIA/TIA-568 standard.

3. This length is specifically between any two stations on a repeated segment.

(with 1 repeater)

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3-22

Connecting to an AC Power Source

Table 3 - 5 lists IEEE 802.3u physical characteristics for 100BASE-TX.

Table 3-5 IEEE 802.3u Physical Characteristics

Parameter 100BASE-TX

Data rate (Mbps) 100

Signaling method Baseband

Maximum segment length 100 m between DTE

Media Category 5 UTP (for RJ-45)

Topology Star/Hub

1. DTE = data terminal equipment.

Connecting to an AC Power Source

This section provides the procedure for connecting your router to an AC power source. A power factor corrector (PFC) allows the AC-input power supply to accept AC power source voltage from an AC power source operating between 100-120 VAC, 15-Amp service in North America; and a range of 185-264 VAC, 10-Amp service in an international environment.

Chapter 3 Installing the Router

and repeaters

3-23

Caution The AC PEM weighs 14.0 pounds (6.35 kg.). Use two hands when handling a

PEM.

Step 1 Attach an ESD-preventive strap to yourself and to either the chassis, or to a bare

metal surface.

Step 2 Using two hands to support and guide the PEM, slide it into the PEM bay. Push

the PEM all the way into the bay until the PEM connector engages the backplane connector.

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Chapter 3 Installing the Router

Step 3 Tighten the captive screws on the PEM faceplate (Figure 3-14).

Figure 3-14 AC PEM

Connecting to an AC Power Source

2 3

456

1 AC PEM handle 4 Power cord receptacle

2 On/Off switch 5 LEDs

3 Bail latch 6 Captive screws

All electrical connections between the power supply and the backplane are

•

made automatically when the power supply is fully inserted in the power supply bay.

Step 4 Locate the AC power cord and remove it from its shipping packaging. Verify that

the AC power cord shipped with the power supply is the correct type for your site.

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Note If you have an incorrect type of power cord, contact your service

representative for a replacement.

Step 5 Plug the AC power cord into the AC PEM.

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Connecting to a DC Power Source

Step 6 Connect the other end of the AC power cord to the AC power source outlet.

Note We recommend attaching each AC PEM to an independent power source

for full redundancy. We also recommend that you use an uninterruptable power source (UPS) to protect against power failures at your site.

Note When operating your router on an AC power source, both PEM bays must

have all AC PEMs installed to ensure compliance with regulatory EMI standards.

Connecting to a DC Power Source

Each DC PDU should be connected to separate DC sources using six threaded terminals. Two terminals for negative (source DC), two terminals for positive (source DC return), and two terminals for ground. The DC power cable leads should be 6 American Wiring Gauge (AWG) high strand count wire. The PEM accepts DC power source voltage from a dedicated 35–Amp service DC power source operating between -48 to -60 VDC.

Chapter 3 Installing the Router

3-25

Warning

Note We recommend each DC PDU be connected to an independent power source for

Power to your router must be Off and all cables disconnected before you install the DC power assembly. The DC PDU and DC PEM when connected, is not a hot-swappable field replaceable unit.

full redundancy. We also recommend that you use an uninterruptable power source (UPS) to protect against power failures at your site.

Caution The DC PEM and DC PDU assembly weighs 14.0 pounds (6.35 kg.). Use two

hands when handling the power supply.

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Chapter 3 Installing the Router

Use the following procedure to install the DC PEM and DC PDU in the router.

Step 1 Attach an ESD-preventive strap to yourself and to either the chassis, or to a bare

metal surface.

Step 2 Insert the DC power module into the power module bay at the rear of the chassis

(Figure 3-15).

Figure 3-15 DC Powered Cisco XR 12404 Router—Rear View

I N

–

4 8

/ 6

V 3 5

I N

P U

U T

P U

U T

I N

U T

–

4 8

/ 6

V 3 5

I N P

U T

P U

U T

A I L

Connecting to a DC Power Source

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Step 3 Press the module against the backplane until the connectors are seated against

the backplane receptacles.

Step 4 Tighten all of the captive screws on the faceplate.

All electrical connections between the power supply and the backplane happen automatically when the power supply is fully inserted in the power supply bay.

Step 5 Tighten the captive screws on the DC PDU.

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Connecting to a DC Power Source

Step 6 Secure each lead to the proper terminal port by tightening the terminal port

connector screws with a 3/16-inch flat-blade screw driver (Figure 3-16).

Figure 3-16 DC PDU Power Block

Chapter 3 Installing the Router

Step 7

GND

66949

1 Negative Terminal Port 3 Ground Terminal Port

2 Positive Terminal Port 4 Terminal Port Connector Screws

Verify that the DC power source circuit breaker servicing the DC PEM is switched on.

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Chapter 3 Installing the Router

Powering on the Router for the First Time

Use the following procedure to power on the router for the first time.

Step 1 Check the following list before you power on the router:

• All cards are fully inserted in the card and CSF cage and all captive screws

are tight

Caution Do not overtighten the captive screws on the cards you might strip the

threads on the screw or in the insert in the component faceplate.

• Line card cable-management brackets are attached to their respective line

cards

• Interface cables are routed neatly through the line card cable-management

bracket

• Interface cables are completely seated in their line card connectors

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• Interface cables are routed neatly through the chassis cable-management

bracket

• PEMs are fully inserted in to each AC PEM bay or DC PDU and DC PEM bay

• PEM cables are securely connected to the PEM

• Power cables are securely connected to the PDU, the power source and are

secured with appropriate strain relief.

• Empty card slots or card bays are filled with card blanks to ensure proper air

flow through the chassis and electromagnetic compatibility (EMC)

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Powering on the Router for the First Time

Step 2 Power on the router by switching on all the circuit breakers and/or plug the power

cord into an active power source that controls power to the router’s AC PEM or DC power distribution unit (PDU).

Step 3 You should observe the following LED confirmation:

• AC PEMs—Verify the AC PEM LEDs are on and that the status is OK

(Figure 3-17).

Figure 3-17 AC PEM LEDs

INPUT

OUTPUT

FAI L

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1 2 3

1 Input OK Green AC is present and within specified limits

2 Output OK Green Power supply module is operating normally in

a powered up condition

3 Output Fail Amber Power module is operating in a fault condition

and shutdown has occurred

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Chapter 3 Installing the Router

• DC PEMs—Verify the DC PEM LEDs are on and that the status is OK

Figure 3-18 DC PEM LEDs

(Figure 3-18).

INP

UT –48/60V 35A

1 2

Powering on the Router for the First Time

66399

INPUT

OUTPUT

4 5

OUTPUT

FAIL

1 DC PDU N/A N/A

2 DC PEM N/A N/A

3 Input OK Green DC is present and within

specified limits

4 Output OK Green Power supply module is

operating normally in a powered up condition

5 Output Fail Amber Power module is operating in a

fault condition and shutdown has occurred

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Powering on the Router for the First Time

• Visually check the CSF LEDs (Figure 3-19):

Figure 3-19 CSF LEDs

Table 3-6 CSF LEDs

Switch Fabric LEDs Status Condition

Critical Off Normally Off

Major Off Normally Off

Minor Off Normally Off

Chapter 3 Installing the Router

CRITICAL

MAJOR

CRITICAL

AJOR

INOR

MINOR

MBUS

ALARM FABRIC

FAIL

ENABLE

CONSOLIDATED SWITCH FABRIC

MBUS

ALARM FABRIC

FAI L

ENABLE

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Table 3-7 CSF MBus Alarm LEDs

MBus Alarm LEDs Status Condition

Fail Off Normally Off

Enable On Normally On

Table 3-8 CSF MBus LEDs

MBus Fabric LEDs Status Condition

Fail Off Normally Off

Enable On Normally On

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Chapter 3 Installing the Router

Step 4 On the console terminal, verify that the console displays the system banner and

that the system and all interfaces initialize successfully.

If the router does not power on, or if any interfaces do not initialize properly, see

Chapter 4, “Troubleshooting the Installation,”. If you are still unable to resolve

the problem, contact your Cisco service representative for assistance.

External Network Interface

After configuration, the RP and line cards can communicate with external networks.

You do not need to configure the network interfaces immediately, but you cannot connect to a network until you configure the interfaces for operation in your networking environment.

Note The interface-specific LEDs on the line cards go on when the line card interfaces

are configured.

External Network Interface

To verify correct operation of each line card interface, complete the first-time setup procedures and configuration, then check the status of the interfaces against the LED descriptions in the configuration notes for each line card.

If the system does not complete each of the boot process steps, go to “Chapter 4,

“Troubleshooting the Installation.”

Manually Booting the System

If your router does not find a valid system configuration image, or if you interrupt the boot sequence, the system might enter read-only memory (ROM) monitor mode and display the ROM monitor prompt (rommon>). From ROM monitor mode, you have access to a number of commands to locate and boot a valid system image.

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Manually Booting the System

Chapter 3 Installing the Router

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CHAPTER

Troubleshooting the Installation

This chapter provides troubleshooting guidelines for Cisco XR 12404 router. If the solutions provided in this chapter do not make the router fully functional, contact your Cisco service representative for assistance.

• Problem-Solving with Subsystems, page 4-5

• Identifying Startup Problems, page 4-2

• Troubleshooting an AC Power Subsystem, page 4-6

• Troubleshooting the DC Power Subsystem, page 4-9

• Troubleshooting the Processor Subsystem, page 4-13

• Troubleshooting the Cooling Subsystem, page 4-19

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4-1

Identifying Startup Problems

Startup problems are commonly due to power source failures or to a card not properly seated in the backplane. Although an overtemperature condition is unlikely at initial startup, the environmental monitoring functions are included here because they also monitor internal voltages.

When you start up the router for the first time, you should observe the startup sequence. The normal startup sequence is as follows:

• Each card in the system has an MBus module and at least one DC-DC

converter. Each MBus module controls the DC-DC converter. The MBus module receives +5 VDC directly from the power supplies through the backplane. When the power supply is powered on, each MBus module boots from an onboard electrically erasable programmable read-only memory (EEPROM) device. Each MBus module processor reads a set of identification pins on the card to the backplane connector telling the MBus module processor what kind of card it is mounted on, which in turn, determines how the MBus module will function.

• The consolidated switch fabric (CSF) containing the system clock,

immediately powers up.

Chapter 4 Troubleshooting the Installation

4-2

• The MBus module on the RP monitors the progress of the clock and scheduler

card power on. When the CSF has powered up, the MBus module on the RP turns on its DC-DC converter powering up the RP.

• The RP sends instructions to each line card to power up. Each line card

processor begins to perform its own boot process and notifies the RP when the boot process is complete through its MBus module.

• As the boot process progresses for each card, the status of the card is shown

on the alphanumeric LED displays. The left display is powered by the DC-DC converter on the card; the right display is powered by the DC voltage that powers the MBus module.

By checking the state of the LEDs on the power supplies and the alphanumeric displays on the RP and line cards, you can determine when and where the system failed in the startup sequence.

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Chapter 4 Troubleshooting the Installation

Using the System LEDs to Troubleshoot

You can determine when and where the system failed in the startup sequence by checking the state of the LEDs on the power modules and line cards, and on the alphanumeric displays on the RP.

You should observe the following when you power on the router:

• INPUT OK LEDs—These LEDs should light immediately; they should

remain on as long as the system is receiving power from the power source and the power switch is in the on position.

The LEDs indicate the status of the PEM and internal DC voltages. If either LED does not light, or if they shut off while the power switch is on, there could be a problem with either the power source, the internal DC voltage used to power internal components, or the cooling subsystem.

The LEDs remain on when all of the following conditions are met:

–

AC PEMs: The AC power source voltage is operating between 100-120 VAC and is using 15-Amp service for North America, or is operating between 185-264 VAC and is using 10-Amp service in an international environment.

–

DC PEMs: The DC power source is supplying power to the PEMs and the power switch is in the on position.

Identifying Startup Problems

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Note The amber OUTPUT FAIL LED is normally off, but lights if the

PEM detects a fault.

–

The power supplies are providing –48 VDC to internal components.

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4-3

Identifying Startup Problems

• The fan tray immediately begins operating.

• The alphanumeric LED displays on the RP indicate the following:

Chapter 4 Troubleshooting the Installation

–

All internal DC voltages are within tolerance.

If the AC power source or any of the internal DC voltages exceed allowable tolerances, the OUTPUT OK LED shuts off, or will shut off shortly after you turn on the power. Because both the RP (which uses +2.5, +3.3 and +5 VDC), and the fan tray assembly (which uses –48 VDC) are required for operation, a problem with any of the internal DC lines can prevent the system from starting up or continuing operation.

For example, if there is a problem with the –48 VDC line that supplies the fan tray, the system powers up, but will also recognize that the fans are not operating. The system will initiate a fan failure shutdown sequence, display the appropriate warning messages, and then shut down after two minutes.

If there is a problem with any of the other DC lines, the RP will not be able to initialize the system software, so the system might attempt to start up and fail during the boot sequence.

–

The left display indicates which RP software component is running.

–

The right display indicates the phase of the boot process that is currently occurring.

4-4

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Chapter 4 Troubleshooting the Installation

Problem-Solving with Subsystems

The key to solving router problems is to isolate the problem to a specific subsystem. The first step in solving startup problems is to compare what the system is doing to what it should be doing. Because a startup problem is usually attributable to a single component, it is more efficient to first isolate the problem to a subsystem rather than trying to troubleshoot each component in the system.

For troubleshooting purposes, the Cisco XR 12404 router consists of the following subsystems:

• Power subsystem—Includes the following components:

–

AC-input power supplies or DC-input power entry modules (PEMs). The Cisco XR 12404 router can be configured for source AC or source DC power (you can not mix AC and DC power).

–

Chassis backplane power distribution. The –48 VDC power from the power supplies is transferred to the chassis backplane, which distributes –48 VDC power to the cards in the card cages through the backplane connectors.

–

DC-DC converters. Each card in the router is equipped with DC-to-DC converters. These converters are controlled by the MBus module on each card. The DC-to-DC converters take –48 VDC and convert it into the voltages required by the card circuitry.

Problem-Solving with Subsystems

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• Processor subsystem—The processor subsystem includes the RP and all line

cards. The RP downloads a copy of the Cisco IOS XR image to each line card processor. The system uses alphanumeric LED displays to display status and error messages, which can help in troubleshooting.

• Cooling subsystem—The cooling subsystem is comprised of one fan tray

assembly and one air filter. The fan tray assembly and air filter are hot swappable, and can be replaced while the system is running.

Caution Replace the fan tray assembly within 2 minutes of removing it from the

chassis or the router will go into a critical failure mode and shutdown due to an overtemp condition.

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4-5

Chapter 4 Troubleshooting the Installation

Troubleshooting an AC Power Subsystem

AC PEMs provide –48 VDC OUTPUT. The +5 VDC OUTPUT from the CSF powers the MBus module on each card in the system. The MBus module, in turn, control the DC-DC converters also present on each card in the system. The DC-DC converter takes –48 VDC from the power supply and converts it into +2.5, +3.3 and +5 VDC, which is distributed to the card circuitry.

AC PEMs are monitored by the MBus module and the RP for over- or undervoltage and over- or undercurrent conditions.

Begin checking the power subsystem by first looking at the LEDs on the power supply. The INPUT OK LED on an AC PEM lights when AC power is applied; the OUTPUT OK LED lights when the PEM power switch is turned on.

Figure 4-1 shows the location of the LEDs on the AC PEM (item 5).

Figure 4-1 AC PEM

4-6

2 3

1 AC PEM handle 4 Power cord receptacle

2 On/Off switch 5 LEDs

3 Bail Latch 6 Captive screws

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Chapter 4 Troubleshooting the Installation

Table 4 - 1 summarizes the function of these indicators.

Table 4-1 DC-Input PEM LED Indicators

LED Label Color Function

OUTPUT OK Green PEM is operating normally in a powered-on

INPUT OK Green DC power is present at the PEM input and

OUTPUT FAIL Amber Indicates a failure in the PEM.

The following conditions must exist for an AC PEM to operate normally:

• The PEM is fully seated in its bay and the ejector levers are secured.

• AC-input power is within the required range is correctly connected to PEMs.

• The power switch on the PEM is switched on.

• The green LEDs labeled OUTPUT OK and INPUT OK on the PEM are on.

Troubleshooting an AC Power Subsystem

condition.

within the specified limits.

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To help isolate a problem with an AC-input power supply, follow these steps:

Step 1 If the OUTPUT OK LED is off, verify that the power supply is fully seated in its

bay, the ejector levers are flush with the power supply faceplate, and the captive screws are secured.

• If the OUTPUT OK LED is on, go to Step 6.

• If the OUTPUT OK LED remains off, go to Step 2

Step 2 Check the AC power source.

• Check the AC power cord from the power source to the router.

–

Verify that the power cord is seated securely in the PDU and the AC outlet.

–

Verify that the power cord is not worn or damaged. If the insulation appears cracked or broken, or the plugs appear loose, replace the power cord with a new power cord.

• Verify that the AC power source circuit breaker is on and has not tripped, and

that the circuit breaker has the proper current rating.

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4-7

Troubleshooting an AC Power Subsystem

• Verify that each power supply in the router is attached to a separate AC power

source.

• If the router is connected to an uninterruptable power supply (UPS), verify

that the UPS is functioning correctly. Note that there might be a UPS for each power supply in the system.

If the AC power source wiring appears to be okay, but the power supply OUTPUT OK LED remains off, go to Step 3.

Step 3 Plug the power cord into a different, but compatible AC outlet.

• If the power supply OUTPUT OK LED is on, the original AC outlet is faulty

and cannot be used. Notify the appropriate facilities personnel and go to Step 6.

• If the power supply OUTPUT OK LED remains off, go to Step 4.

Step 4 Exchange the existing power cord for another power cord.

• If the power supply OUTPUT OK LED is on, the original power cord is faulty

and must be replaced. The AC portion of the power supply is working normally, go to Step 6.

• If the OUTPUT OK LED still fails light when connected to a different power

source with a new power cord, the power supply is probably faulty. Go to Step 5.

Chapter 4 Troubleshooting the Installation

4-8

Step 5 If a spare power supply is available, replace the existing module with the spare

and restart the system.

• If the OUTPUT OK LED on the spare power supply is on, the power supply

is working normally, go to Step 6. The original power supply is faulty and should be returned for replacement.

Step 6 Is the power supply INPUT OK LED on?

• If yes, the power supply is functioning normally.

Note In a Cisco XR 12406 router with two power supplies, the output power

from the second power supply is adequate to maintain router operation.

• If no, and there is no other system activity (fan assembly is off; line cards are

not powered), the power supply is faulty. Replace the power supply.

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Chapter 4 Troubleshooting the Installation

Troubleshooting the DC Power Subsystem

• If no, but the fan assembly is operating, suspect a faulty power supply

INPUT OK LED. If the fan assembly is operating, all internal DC voltages are within tolerance. Use the show environment command to check the voltages on each card. The fan assembly uses –48 VDC.

If you are unable to resolve the problem or if you determine that either the power supply or power cable is faulty, contact a service representative for assistance.

Troubleshooting the DC Power Subsystem

The DC PEMs and PDUs provide DC power to the router which is distributed to the card circuitry.

Begin checking the power subsystem by first looking at the three LEDs on the PEM. The INPUT OK LED on an DC PEM is on when DC power is applied, The OUTPUT OK LED is on when the power switch is turned on.

• The amber OUTPUT FAIL LED is normally off, but comes on if the PEM

detects a fault.

• The DC PEMs are monitored by the MBus module and the RP for

over-or-under voltage and current conditions.

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Figure 4-2 shows the location of the LEDs on the PEM.

Cisco XR 12404 Router Installation Guide

4-9

Troubleshooting the DC Power Subsystem

Figure 4-2 DC PEM and PDU

1 2 3

INPUT –48/60V 35A

1 DC PDU 5 On/Off switch

2 DC PEM 6 PDU captive screws

3 PEM captive screws 7 Termina l B l ock

4 LEDs

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Table 4 - 2 summarizes the function of these indicators.

Table 4-2 DC-Input PEM LED Indicators

LED Label Color Function

OUTPUT OK Green PEM is operating normally in a powered-on

condition.

INPUT OK Green DC power is present at the PEM input and

within the specified limits.

OUTPUT FAIL Amber Indicates a failure in the PEM.

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Cisco XR 12404 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Cisco XR 12404 Router Installation Guide

CONTENTS

Audience

About This Guide

Purpose

Installation Guide Organization

Document Conventions

Obtaining Documentation, Obtaining Support, and Security Guidelines

Cisco XR 12404 Router Overview

Router Overview

Physical and Functional Description of Router

Route Processor

Performance Route Processor Overview

PRP PCMCIA Card Slots and Status LEDs

PRP Ethernet Ports and Status LEDs

PRP Auxiliary and Console Ports

PRP Reset Switch

PRP Alphanumeric Message Displays

PRP Memory Components

PRP SDRAM

PRP SRAM

PRP NVRAM

PRP Flash Memory

Supported Line Cards

Consolidated Switch Fabric Card

Alarm Functionality

Power Source Monitoring

Switch Fabric Functionality

Clock and Scheduler Functionality

Power Entry Modules

AC PEMs

DC PEMs

Fan Tray Assembly

Power Distribution

Cable Management System

Maintenance Bus

Power-On/Off Control

Component Discovery

Code Download

Diagnostics

Environmental Monitoring and Alarms

Preparing for Installation

Tools and Equipment

Safety and Compliance

General Safety Guidelines

Compliance and Safety Information

Preventing Electrostatic Discharge Damage

Attaching an ESD-Preventive Strap

Laser Safety

Lifting Guidelines

Safety with Electricity

Installation Site Requirements

Rack-Mounting and Ventilation Guidelines

Rack Mounting Clearance

Multiple Routers in a Rack

Environmental Guidelines

Airflow

Temperature and Humidity

Power Connection Guidelines

AC-Powered Routers

Power Connection Guidelines for DC-Powered Routers

Grounding Connections

Site Wiring

Electromagnetic Interference

Unpacking and Repacking the Cisco XR 12404 Router

Distance Limitations

Transporting a Cisco XR 12000 Series Router

Site Preparation Checklist

Installing the Router

Required Tools

Installing a Cisco XR 12404 Router

Installing the Rack-Mounting Brackets—Optional

Installing the Center-Mounting Brackets—Optional

Installing the Chassis in a Rack

Supplemental Bonding and Grounding Connections

Installing the Chassis on a Tabletop or Flat Surface