Cisco XR 12404 User Manual
Cisco XR 12404 Router Installation Guide
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Text Part Number: OL-13830-02
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Cisco XR 12404 Router Installation Guide
© 2007 Cisco Systems, Inc. All rights reserved.
CONTENTS
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
v
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
vi
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
CHAPTER
CHAPTER
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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
Cisco XR 12404 Router Installation Guide
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
I
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
ix
Installation Guide Organization
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.
Cisco XR 12404 Router Installation Guide
x
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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
xi
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
1
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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
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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
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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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
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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.
75041
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Cisco XR 12404 Router Installation Guide
1-5
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
1-6
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
EN
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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.
Route Processor
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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.
Cisco XR 12404 Router Installation Guide
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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.
Cisco XR 12404 Router Installation Guide
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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
,
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
P3
information, and other user-defined files
1
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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1-9
Route Processor
Figure 1-5 PRP Memory Locations
Chapter 1 Cisco XR 12404 Router Overview
Flash
SIMM
T
C
E
J
E
PCMCIA slot-1
and slot-2
(behind cover)
U18
P3
SLOT-1
SLOT-0
Bank 2
DRAM DIMMs
Bank 1
U15
ETH 1ETH 0 AUX
RX
TX
EN
EN
Y
Y
R
R
A
A
M
I
IM
R
R
P
P
LINK
LINK
CONSOLE
RX
TX
R
E
S
E
T
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.
1
U15 (bank 1)
U18 (bank 2)
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:
1-12
• 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
2
64 MB
1
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.
Cisco XR 12404 Router Installation Guide
Part Number
MEM-12KRP-FD64=
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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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3
2
1
0
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
Chapter 1 Cisco XR 12404 Router Overview
Figure 1-7 shows examples of single-mode and multimode line cards.
Figure 1-7 Sample Line Cards
Single Mode
0
ACTIVE
CARRIER
RX PKT
1
ACTIVE
CARRIER
RX PKT
2
ACTIVE
CARRIER
RX PKT
3
ACTIVE
CARRIER
RX PKT
Q OC-3/STM-1 SM IR POS
Ejector lever
Port 0
Status LEDs
Port 1
Port 2
Port 3
Multimode
0
ACTIVE
CARRIER
RX PKT
1
ACTIVE
CARRIER
RX PKT
2
ACTIVE
CARRIER
RX PKT
3
ACTIVE
CARRIER
RX PKT
Q OC-3/STM-1 MM POS
160-pin
backplane
signal
connector
1-14
Alphanumeric
LED display
Ejector lever
Front view Rear view
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Chapter 1 Cisco XR 12404 Router Overview
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
Consolidated Switch Fabric Card
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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
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
1
2 3
INPUT
OUTPUT
OUTPUT
OK
OK
FAIL
IN
P
100-240V
12A
50/80H
U
T
Z
456
1 AC PEM finger grips 4 Power cord receptacle
2 On/Off switch 5 Status LEDs
3 Bail latch 6 Captive screws
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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