Juniper networks T640 User Manual

T640 Core Router

Hardware Guide

Published: 2010-10-28

Juniper Networks, Inc. 1194 North Mathilda Avenue Sunnyvale, California 94089 USA 408-745-2000 www.juniper.net

This productincludes the Envoy SNMP Engine, developed by Epilogue Technology,an Integrated Systems Company.Copyright © 1986-1997, Epilogue Technology Corporation. All rights reserved. This program and its documentation were developed at private expense, and no part of them is in the public domain.

This product includes FreeBSD software developed by the University of California, Berkeley, and its contributors. All of the documentation and software included in the 4.4BSD and 4.4BSD-Lite Releases is copyrighted by the Regents of the University of California. Copyright © 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994. The Regents of the University of California. All rights reserved.

GateD software copyright © 1995, the Regents of the University. All rights reserved. Gate Daemon was originated and developed through release 3.0 by Cornell University and its collaborators. Gated is based on Kirton’s EGP, UC Berkeley’s routing daemon (routed), and DCN’s HELLO routing protocol. Development of Gated has been supported in part by the National Science Foundation. Portions of the GateD software copyright © 1988, Regents of the University of California. All rights reserved. Portions of the GateD software copyright © 1991, D. L. S. Associates.

Juniper Networks, Junos, Steel-Belted Radius, NetScreen, and ScreenOS are registered trademarks of Juniper Networks, Inc. in the United States and other countries. The Juniper Networks Logo, the Junos logo, and JunosE are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.

Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice.

Products made or sold by Juniper Networks or components thereof might be covered by one or more of the following patents that are owned by or licensed to Juniper Networks: U.S. Patent Nos. 5,473,599, 5,905,725, 5,909,440, 6,192,051, 6,333,650, 6,359,479, 6,406,312, 6,429,706, 6,459,579, 6,493,347, 6,538,518, 6,538,899, 6,552,918, 6,567,902, 6,578,186, and 6,590,785.

T640 Core Router Hardware Guide

Revision History October 2010—Corporate rebranding. Minor edits. August 2010—Corporate rebranding. Minor edits. May 2010—ForJunos OS Release 10.2, added supportof theclock interfaceports onthe SONETclock generator(SCG). Addedthe three-phase delta and wye AC power supplies. Updated the European Community EMC Declaration of Conformity. Updated the DC power supply specifications. November 2009—Updated the amber LED to yellow. September 2009—Completed topic conversion. 10 April 2009— 530-021112-01 Revision 5. Added the Enhanced Scaling FPC2 (T640-FPC2-ES) and Enhanced Scaling FPC4-1P (T640-FPC4-1P-ES). 6 February 2009— 530-021112-01 Revision 4. Added the Enhanced Scaling FPC1 (T640-FPC1-ES). 31 December2008— 530-021112-01 Revision 3.Added the 3-input240-A power supply in2–INPUTmode. Updated thepowerrequirements. 28 October 2008— 530-021112-01 Revision 2. Updated the failover description for power supplies, high availability information, compliance statement for acoustic noise, procedure for replacing serial cables, the replacement schedule for air filters, the number of fans, and the weight of the rear fan tray. Added the T640 Enhanced Scaling FPC3 (T640-FPC3-ES). 22 June 2007— 530-021112-01 Revision 1. Updated DC input voltage range. Updated clearance requirements. Updated procedures for mounting hardware. Add first Junos OS Release for each FPC. Removed end-of-life control board. 20 October 2006— 530-017398-01 Revision 1. Added European Community EMC Declaration of Conformity. 28 June 2006—530-015180-01 Revision 3. Added Lithium battery compliance statement. Updated Product Reclamation and Recycling statement. Updated power information for FPCs. Added the power requirements for FPC4. Updated how much torque to apply when securing the cable to a DC power supply. Corrected thermal output specification.

13 April 2006—530-015180-01 Revision 2. Changed replacement procedures to reflect the fact that some Routing Engines might or might not have retaining screws. Updated Junos OS Release recommendation for graceful switchover. 9 January 2006—530-015180-01 Revision 1. Added note about SIB version B. Added graphic of T640-SIB. Added Enhanced Scaling FPC4 and its SIB version B requirement. Corrected power supply input DC current rating. 26 September 2005—530-014306-01 Revision 1. Corrected figures and added power supply input description. 14 September 2005—530-011256-01 Revision 3. Corrected chassis figures and updated SIB content. 25 April 2005—530-011256-01 Revision 2. Updated DC power supply illustration. 01 April 2004—530-011256-01 Revision 1. General updates and cleanup. 30 June 2003—530-007306-01 Revision 3. Updated information and minor edits. 02 April 2002—530-007306-01 Revision 2. 03 December 2001—530-007306-01 Revision 1. First edition.

The information in this document is current as of the date listed in the revision history.

YEAR 2000 NOTICE

Juniper Networks hardware and software products are Year 2000 compliant. The Junos OS has no known time-related limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036.

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a. Customer shall use Embedded Software solely as embedded in, and for execution on, Juniper equipment originally purchased by Customer from Juniper or an authorized Juniper reseller.

b. Customer shall use the Software on a single hardware chassis having a single processing unit, or as many chassis or processing units for which Customer has paid the applicable license fees; provided, however, with respect to the Steel-Belted Radius or Odyssey Access Client software only, Customer shall use such Software on a single computer containing a single physical random access memory space and containing any number of processors. Use of the Steel-Belted Radius or IMS AAA software on multiple computers or virtual machines (e.g., Solaris zones) requires multiple licenses, regardless of whether such computers or virtualizations are physically contained on a single chassis.

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Software in any manner that extends or is broader than the uses purchased by Customer from Juniper or an authorized Juniper reseller; (i) use Embedded Software on non-Juniper equipment; (j) use Embedded Software (or make it available for use) on Juniper equipment that the Customer did not originally purchase from Juniper or an authorized Juniper reseller; (k) disclose the results of testing or benchmarking of the Software to any third party without the prior written consent of Juniper; or (l) use the Software in any manner other than as expressly provided herein.

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8. Warranty, Limitation of Liability, Disclaimer of Warranty. The warranty applicable to the Software shall be as set forth in the warranty statementthat accompaniesthe Software (the“Warranty Statement”).Nothing inthis Agreement shallgive riseto any obligation to support the Software. Support services may be purchased separately. Any such support shall be governed by a separate, written support services agreement. TO THE MAXIMUM EXTENT PERMITTED BY LAW, JUNIPER SHALL NOT BE LIABLE FOR ANY LOST PROFITS, LOSS OF DATA, OR COSTS ORPROCUREMENT OFSUBSTITUTE GOODSOR SERVICES,OR FORANY SPECIAL, INDIRECT, ORCONSEQUENTIAL DAMAGES ARISING OUTOF THIS AGREEMENT,THE SOFTWARE,OR ANY JUNIPEROR JUNIPER-SUPPLIEDSOFTWARE. INNO EVENT SHALLJUNIPER BE LIABLE FOR DAMAGES ARISING FROM UNAUTHORIZED OR IMPROPER USE OF ANY JUNIPER OR JUNIPER-SUPPLIED SOFTWARE. EXCEPT AS EXPRESSLY PROVIDED IN THE WARRANTY STATEMENT TO THE EXTENT PERMITTED BY LAW, JUNIPER DISCLAIMS ANY AND ALL WARRANTIES IN AND TO THE SOFTWARE (WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE), INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NONINFRINGEMENT. IN NO EVENT DOES JUNIPER WARRANT THAT THE SOFTWARE, OR ANY EQUIPMENT OR NETWORK RUNNING THE SOFTWARE, WILL OPERATE WITHOUT ERROR OR INTERRUPTION, OR WILL BE FREE OF VULNERABILITY TO INTRUSION OR ATTACK. In no event shall Juniper’s or its suppliers’ or licensors’ liability to Customer, whether in contract, tort (including negligence), breach of warranty, or otherwise, exceed the price paid by Customer for the Software that gave rise to the claim, or if the Software is embedded in another Juniper product, the price paid by Customer for such other product. Customer acknowledges and agrees that Juniper has set its prices and entered into this Agreement in reliance upon the disclaimers of warranty and the limitations of liability set forth herein, that the same reflect an allocation of risk between the Parties (including the risk that a contract remedy may fail of its essential purpose and cause consequential loss), and that the same form an essential basis of the bargain between the Parties.

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at http://www.gnu.org/licenses/lgpl.html .

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About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

Junos OS Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvii

Requesting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxviii

Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxviii

Opening a Case with JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxix

Part 1 T640 Router Product Overview

Chapter 1 T640 Router Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

T640 Router Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

T640 Field-Replaceable Units (FRUs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

T640 Router FRU Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

T640 FRU List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

T640 Component Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Chapter 2 Overview of the T640 Router System Architecture . . . . . . . . . . . . . . . . . . . . . 7

T640 System Architecture Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

T640 Routing Engine Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

T640 Packet Forwarding Engine Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Data Flow Through the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Chapter 3 T640 Router Hardware Component Overview . . . . . . . . . . . . . . . . . . . . . . . . . 13

T640 Chassis Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

T640 Midplane Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

T640 Flexible PIC Concentrators (FPCs) Overview . . . . . . . . . . . . . . . . . . . . . . . . 18

T640 FPC Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

FPC Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Identifying T640 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

T640 FPCs Supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

T640 PIC Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

T640 Switch Interface Boards (SIBs) Description . . . . . . . . . . . . . . . . . . . . . . . . . 30

T640 Host Subsystem Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

T640 Host Subsystem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

T640 Routing Engine Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

T640 Routing Engine Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

T640 RE-600 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

T640 RE-1600 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

T640 Core Router Hardware Guide

T640 RE-2000 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

T640 T Series Control Boards (T-CBs) Description . . . . . . . . . . . . . . . . . . . . 38

T640 T Series Control Boards (T-CBs) LEDs . . . . . . . . . . . . . . . . . . . . . . . . . 39

T640 SONET Clock Generators (SCGs) Overview . . . . . . . . . . . . . . . . . . . . . . . . . 40

T640 Standard SONET Clock Generators (SCGs) Description . . . . . . . . . . . 40

T640 SONET Clock Generators (SCGs) LEDs . . . . . . . . . . . . . . . . . . . . . . . . . 41

T640 Craft Interface Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

T640 Craft Interface Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

T640 Craft Interface Alarm LEDs and ACO/LT Button . . . . . . . . . . . . . . . . . . 42

T640 Craft Interface LCD and Navigation Buttons . . . . . . . . . . . . . . . . . . . . . 43

T640 Craft Interface Host Subsystem LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . 44

T640 Craft Interface SIB LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

T640 Craft Interface FPC LEDs and Online/Offline Buttons . . . . . . . . . . . . . 45

T640 Connector Interface Panel (CIP) Description . . . . . . . . . . . . . . . . . . . . . . . . 46

T640 Routing Engine Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

T640 Alarm Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

T640 Power System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

T640 Power System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

T640 Two-Input 160-A DC Power Supply Overview . . . . . . . . . . . . . . . . . . . . 49

Two-Input 160-A DC Power Supply Description . . . . . . . . . . . . . . . . . . . 49

Two-Input 160-A DC Power Supply Inputs . . . . . . . . . . . . . . . . . . . . . . . . 50

Two-Input 160-A DC Power Supply Load Sharing and Fault

Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

T640 Two-Input 160-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . 51

T640 Three-Input 240-A DC Power Supply Overview . . . . . . . . . . . . . . . . . . 52

Three-Input 240-A DC Power Supply Description . . . . . . . . . . . . . . . . . . 52

Three-Input 240-A DC Power Supply Inputs . . . . . . . . . . . . . . . . . . . . . . 52

Three-Input 240-A DC Power Supply Load Sharing and Fault

Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

T640 Three-Input 240-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . 53

T640 Four-Input 240-A DC Power Supply Overview . . . . . . . . . . . . . . . . . . . 55

Four-Input 240-A DC Power Supply Description . . . . . . . . . . . . . . . . . . . 55

Four-Input 240-A DC Power Supply Inputs . . . . . . . . . . . . . . . . . . . . . . . 55

Four-Input 240-A DC Power Supply Load Sharing and Fault

Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

T640 Four-Input 240-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . 56

T640 Three-Phase Delta and Wye AC Power Supply Overview . . . . . . . . . . . 57

Three-Phase Delta AC Power Supply Description . . . . . . . . . . . . . . . . . . 57

Three-Phase Wye AC Power Supply Description . . . . . . . . . . . . . . . . . . . 58

AC Power Supply Load Sharing and Fault Tolerance . . . . . . . . . . . . . . . . 59

T640 Three-Phase Delta and Wye AC Power Supply LEDs . . . . . . . . . . . . . . 60

T640 Cooling System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

T640 Cable Management System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Part 2 T640 Router Initial Installation

Chapter 4 Preparing for T640 Router Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

T640 Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

T640 Rack Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Table of Contents

T640 Clearance Requirements for Airflow and Hardware Maintenance . . . . . . . 68

Chapter 5 T640 Router Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

T640 Router Installation Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Chapter 6 Unpacking the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Tools and Parts Required to Unpack the T640 Router . . . . . . . . . . . . . . . . . . . . . . 71

Unpacking the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Verifying the T640 Router Parts Received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Chapter 7 Installing the T640 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . 77

Verifying the T640 Rack-Mounting Hardware Received . . . . . . . . . . . . . . . . . . . . . 77

Before You Install the T640 Rack-Mounting Hardware . . . . . . . . . . . . . . . . . . . . . 77

Installing the T640 Mounting Hardware for a Four-Post Rack or Cabinet . . . . . . 78

Installing the T640 Mounting Hardware for an Open-Frame Rack . . . . . . . . . . . . 81

Chapter 8 Installing the T640 Router in to a Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Safety Requirements, Warnings, and Guidelines for Installing the T640

Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Overview of Installing the T640 Router in the Rack . . . . . . . . . . . . . . . . . . . . . . . . 85

Chapter 9 Installing the T640 Router Using a Mechanical Lift . . . . . . . . . . . . . . . . . . . . 87

Overview of Installing a T640 Router Using a Mechanical Lift . . . . . . . . . . . . . . . 87

Tools Required to Install the T640 Router Using a Mechanical Lift . . . . . . . . . . . . 87

Installing the T640 Router Using a Mechanical Lift . . . . . . . . . . . . . . . . . . . . . . . . 88

Attaching the T640 Router Installation Handle . . . . . . . . . . . . . . . . . . . . . . . 88

Mounting the T640 Chassis Using a Mechanical Lift . . . . . . . . . . . . . . . . . . . 89

Removing the T640 Router Installation Handle and Reinstalling the Power

Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Chapter 10 Installing the T640 Router Without a Mechanical Lift . . . . . . . . . . . . . . . . . 95

Overview of Installing the T640 Router Without a Mechanical Lift . . . . . . . . . . . 95

Tools and Parts Required to Install the T640 Router Without a Mechanical

Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Removing Components from the T640 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Removing the T640 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Removing the T640 SIBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Removing the T640 T-CBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Removing the T640 SCGs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Removing the T640 Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Removing the T640 Cable Management System . . . . . . . . . . . . . . . . . . . . . 102

Removing the T640 Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Removing the T640 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Installing the T640 Chassis in the Rack Manually . . . . . . . . . . . . . . . . . . . . . . . . 104

Reinstalling Components in the T640 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Reinstalling the T640 Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Reinstalling the T640 SCGs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Reinstalling the T640 T-CBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Reinstalling the T640 SIBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Reinstalling the T640 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Reinstalling the T640 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

T640 Core Router Hardware Guide

Chapter 11 Grounding the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Chapter 12 Connecting the T640 Router to External Devices . . . . . . . . . . . . . . . . . . . . . 117

Chapter 13 Providing Power to the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Chapter 14 Performing the Initial T640 Junos OS Configuration . . . . . . . . . . . . . . . . . . 139

Reinstalling T640 Front Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Reinstalling the T640 Cable Management System . . . . . . . . . . . . . . . . . . . . 114

Tools and Parts Required to Ground the T640 Router . . . . . . . . . . . . . . . . . . . . . . 115

Connecting the T640 Grounding Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Tools and Parts Required to Connect the T640 Router to External Devices . . . . . 117

Overview of Connecting the T640 Router to Management and Alarm

Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Connecting the T640 Router to a Network for Out-of-Band

Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Connecting the T640 Router to a Management Console or Auxiliary

Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Connecting the T640 Router to an External Alarm-Reporting Device . . . . . . 119

Connecting PIC Cables to the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Tools and Parts Required to Provide Power to the T640 Router . . . . . . . . . . . . . 123

Connecting DC Power to a T640 Router with Two-Input 160-A DC Power

Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Connecting DC Power to a T640 Router with Three-input 240-A DC Power

Supplies (2-INPUT Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

Connecting DC Power to a T640 Router with Four-Input 240-A DC Power

Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Powering On a DC-Powered T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Connecting AC Power to a T640 Router with Three-Phase Delta AC Power

Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Connecting AC Power to a T640 Router with Three-Phase Wye AC Power

Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Powering On an AC-Powered T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Powering Off a T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

Preparing to Configure the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Initially Configuring the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

Entering Configuration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Configuring User Accounts and Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Configuring System Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Committing the Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Table of Contents

Part 3 T640 Router Hardware Maintenance, Troubleshooting, and

Replacement Procedures

Chapter 15 Maintaining T640 Router Hardware Components . . . . . . . . . . . . . . . . . . . . 145

Tools and Parts Required to Maintain the T640 Hardware Components . . . . . . 145

Routine Maintenance Procedures for the T640 Router . . . . . . . . . . . . . . . . . . . . 145

Maintaining Cooling System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Maintaining the T640 Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Maintaining the T640 Fan Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Maintaining the T640 Host Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Maintaining the T640 Routing Engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

Maintaining the T640 T-CBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

Maintaining the T640 SCGs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

Maintaining the T640 Packet Forwarding Engine Components . . . . . . . . . . . . . . 151

Maintaining T640 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Holding and Storing T640 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Holding T640 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Storing T640 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Maintaining T640 PICs and PIC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Maintaining the T640 SIBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Maintaining the T640 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Chapter 16 Troubleshooting T640 Router Hardware Components . . . . . . . . . . . . . . . . 163

Overview of Troubleshooting Resources for the T640 Router . . . . . . . . . . . . . . . 163

T640 LED Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Craft Interface LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Component LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Troubleshooting Using the T640 Chassis and Interface Alarm Messages . . . . . . 165

Troubleshooting the T640 Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Troubleshooting the T640 FPCs and PICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Troubleshooting the T640 FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Troubleshooting the T640 PICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

Troubleshooting the T640 Power System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

Chapter 17 Replacing T640 Router Hardware Components . . . . . . . . . . . . . . . . . . . . . . 175

Tools and Parts Required to Replace the T640 Hardware Components . . . . . . . 175

Replacing the T640 CIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Removing a T640 CIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Installing a T640 CIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Replacing the T640 Connections to Routing Engine Interface Ports . . . . . . . . . . 180

Replacing the T640 Management Ethernet Cables . . . . . . . . . . . . . . . . . . . . 181

Replacing the T640 Console or Auxiliary Cable . . . . . . . . . . . . . . . . . . . . . . . 183

Replacing the T640 Alarm Relay Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Replacing the T640 Cooling System Components . . . . . . . . . . . . . . . . . . . . . . . 186

Replacing a T640 Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Removing a T640 Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Installing a T640 Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

Removing a T640 Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

T640 Core Router Hardware Guide

Installing a T640 Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Replacing a T640 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

Removing a Front T640 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Installing a Front T640 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Removing a Rear T640 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Installing a Rear T640 Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Replacing a T640 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196

Removing a T640 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Installing a T640 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Replacing the T640 Host Subsystem Components . . . . . . . . . . . . . . . . . . . . . . . 198

Taking the T640 Host Subsystem Offline . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Replacing a T640 T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Removing a T640 T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Installing a T640 T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

Replacing a T640 PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

Removing a T640 PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

Installing a T640 PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

Replacing a DIMM Module in T640 Routing Engines . . . . . . . . . . . . . . . . . . 205

Removing a T640 DIMM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

Installing a T640 DIMM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Replacing a T640 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Removing a T640 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

Installing a T640 Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

Replacing a T640 SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

Removing a T640 SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

Installing a T640 SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Replacing a T640 SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

Removing a T640 Standard SIB or Standard SIB Version B . . . . . . . . . . . . . 212

Installing a T640 Standard SIB or Standard SIB Version B . . . . . . . . . . . . . . 213

Upgrading to a T640 Standard SIB Version B . . . . . . . . . . . . . . . . . . . . . . . . 214

Preparing to Upgrade to a T640 Standard SIB Version B . . . . . . . . . . . . 215

Replacing T640 Standard SIBs with Standard SIB Version B . . . . . . . . 215

Removing a T640-SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Installing a T640-SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

Replacing T640 Packet Forwarding Engine Components . . . . . . . . . . . . . . . . . . 219

Replacing a T640 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Removing a T640 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Installing a T640 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Replacing a T640 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Removing a T640 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

Installing a T640 PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

Replacing T640 PIC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

Removing a T640 PIC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

Installing a T640 PIC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

Replacing a T640 SFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Removing a T640 SFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Installing a T640 SFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

Table of Contents

Replacing a T640 XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

Removing a T640 XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236

Installing a T640 XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

Replacing T640 Power System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

Replacing a T640 Two-Input 160-A DC Power Supply . . . . . . . . . . . . . . . . . 239

Removing a T640 Two-Input 160-A DC Power Supply . . . . . . . . . . . . . 239

Installing a T640 Two-Input DC Power Supply . . . . . . . . . . . . . . . . . . . . 241

Replacing a T640 Three-Input 240-A DC Power Supply . . . . . . . . . . . . . . . 245

Removing a T640 Three-Input 240-A DC Power Supply . . . . . . . . . . . 245

Setting the Input Mode Switchon aThree-Input 240-A DCPowerSupply

for a T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247

Installing a T640 Three-Input 240-A DC Power Supply . . . . . . . . . . . . 248

Replacing the T640 Cable Restraint on a Three-Input 240-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

Connecting DC Power to a Three-Input 240-A DC Power Supply in a

T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251

Powering On a T640 Replacement Three-Input 240-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

Replacing a T640 Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . 254

Removing a T640 Four-Input 240-A DC Power Supply . . . . . . . . . . . . 254

Installing a T640 Four-Input 240-A DC Power Supply . . . . . . . . . . . . . 257

Replacing a T640 DC Power Supply Cable . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Removing a T640 DC Power Supply Cable . . . . . . . . . . . . . . . . . . . . . . . 261

Installing a T640 DC Power Supply Cable . . . . . . . . . . . . . . . . . . . . . . . 263

Replacing T640 DC Power Supplies with AC Power Supplies . . . . . . . . . . . 267

Removing the T640 DC Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . 267

Installing the T640 Three-Phase Delta or Wye AC Power Supplies . . . . 271

Replacing a T640 Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . . 274

Removing a T640 Three-Phase Delta AC Power Supply . . . . . . . . . . . . 275

Installing a T640 Three-Phase Delta AC Power Supply . . . . . . . . . . . . 278

Replacing a T640 Three-Phase Delta AC Power Supply Cord . . . . . . . . . . . 280

Removing a T640 Three-Phase Delta AC Power Supply Cord . . . . . . . . 281

Installing a T640 Three-Phase Delta AC Power Supply Cord . . . . . . . . 283

Replacing a T640 Three-Phase Wye AC Power Supply . . . . . . . . . . . . . . . . 285

Removing a T640 Three-Phase Wye AC Power Supply . . . . . . . . . . . . 285

Installing a T640 Three-Phase Wye AC Power Supply . . . . . . . . . . . . . 288

Replacing a T640 Three-Phase Wye AC Power Supply Cord . . . . . . . . . . . . 290

Removing a T640 Three-Phase Wye AC Power Supply Cord . . . . . . . . 290

Installing a T640 Three-Phase Wye AC Power Supply Cord . . . . . . . . . 292

Replacing a Front Air Filter Element on a T640 AC or DC Power Supply . . . 294

Removing a Front Air Filter Element on a T640 AC or DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

Installing a Front Air Filter Element on a T640 AC or DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295

Replacing a Side Air Filter on a T640 AC Power Supply . . . . . . . . . . . . . . . . 295

Removing a Side Air Filter on a T640 AC Power Supply . . . . . . . . . . . . 296

Installing a Side Air Filter on a T640 AC Power Supply . . . . . . . . . . . . . 297

T640 Core Router Hardware Guide

Part 4 Appendixes

Appendix A T640 Safety and Regulatory Compliance Information . . . . . . . . . . . . . . . . 301

Definition of Safety Warning Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

T640 Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303

General Safety Guidelines for M Series, MX Series, and T Series Routers . . 303 General Safety Warnings for M Series, MX Series, and T Series Routers . . . 304

Qualified Personnel Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 304

Restricted Access Area Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305

T640 Preventing Electrostatic Discharge Damage . . . . . . . . . . . . . . . . . . . . 306

Fire Safety Requirements for M Series, MX Series, and T Series Routers . . . . . . 308

General Fire Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Fire Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

Fire Suppression Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309

T640 Installation Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . . . 310

T640 Chassis Lifting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Installation Safety Warnings for M Series, MX Series, and T Series

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Installation Instructions Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Rack-Mounting Requirements and Warnings . . . . . . . . . . . . . . . . . . . . . 311

Ramp Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314

T640 Laser and LED Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . 315

T640 General Laser Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315

Laser and LED Safety Guidelines and Warnings for M Series, MX Series, and

T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316

General Laser Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316

Class 1 Laser Product Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316

Class 1 LED Product Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Laser Beam Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Radiation from Open Port Apertures Warning . . . . . . . . . . . . . . . . . . . . 318

Maintenance and Operational Safety Warnings for M Series, MX Series, and T

Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Battery Handling Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Jewelry Removal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

Lightning Activity Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

Operating Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322

Product Disposal Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

T640 General Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . 324

In Case of an Electrical Accident . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

General Electrical Safety Guidelines and Electrical Codes for M Series, MX

Series, and T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

General Electrical Safety Warnings for M Series, MX Series, and T Series

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325

Grounded Equipment Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325

Grounding Requirements and Warning . . . . . . . . . . . . . . . . . . . . . . . . . . 326

Midplane Energy Hazard Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

Multiple Power Supplies Disconnection Warning . . . . . . . . . . . . . . . . . . 327

Power Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328

Table of Contents

DC Power Electrical Safety Guidelines and Warnings . . . . . . . . . . . . . . . . . . . . . 329

T640 DC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . 329

DC Power Electrical Safety Warnings for M Series, MX Series, and T Series

Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330

DC Power Copper Conductors Warning . . . . . . . . . . . . . . . . . . . . . . . . . 330

DC Power Disconnection Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330

DC Power Wiring Terminations Warning . . . . . . . . . . . . . . . . . . . . . . . . . 332

AC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333

T640 AC Power Electrical Safety Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . 333

T640 Agency Approvals and Compliance Statements . . . . . . . . . . . . . . . . . . . . 334

T640 Agency Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334

T640 Compliance Statements for NEBS . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

Compliance Statements for EMC Requirements for M Series, MX Series,

and T Series Routers (Canada) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

T640 Compliance Statements for EMC Requirements (European

Community) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337

Compliance Statements for EMC Requirements for M Series, MX Series,

and T Series Routers (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

Compliance Statements for EMC Requirements for M Series, MX Series,

and T Series Routers (United States) . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

Compliance Statements for Environmental Requirements for M Series, MX

Series, and T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338

T640 Compliance Statements for Acoustic Noise . . . . . . . . . . . . . . . . . . . . 339

Appendix B T640 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341

T640 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341

Appendix C T640 Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343

T640 Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343

Appendix D T640 Power Guidelines, Requirements, and Specifications . . . . . . . . . . . 345

T640 Chassis Grounding Cable and Lug Specifications . . . . . . . . . . . . . . . . . . . 345

Site Electrical Wiring Guidelines for M Series and T Series Routers . . . . . . . . . . 346

Distance Limitations for Signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346

Radio Frequency Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346

Electromagnetic Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346

T640 DC Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . . . . 347

T640 DC Power System Electrical Specifications . . . . . . . . . . . . . . . . . . . . . 347

T640 DC Power Supply Electrical Specifications . . . . . . . . . . . . . . . . . . . . . 348

T640 DC Power System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350

T640 DC Power Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352

T640 DC Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353

T640 AC Power Specifications and Requirements . . . . . . . . . . . . . . . . . . . . . . . 355

T640 AC Power System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355

T640 Three-Phase Delta AC Power Supply Specifications . . . . . . . . . . . . . 355

T640 Three-Phase Wye AC Power Supply Specifications . . . . . . . . . . . . . . 356

T640 AC Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

T640 AC Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358

T640 Core Router Hardware Guide

Appendix E T640 Router Cable and Wire Guidelines and Specifications . . . . . . . . . . . 361

Appendix F T640 Router Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

Appendix G Contacting Customer Support and Returning T640 Router Hardware . . 369

T640 Network Cable Specifications and Guidelines . . . . . . . . . . . . . . . . . . . . . . 361

T640 Signal Loss in Multimode and Single-Mode Fiber-Optic Cable . . . . . . 361

T640 Attenuation and Dispersion in Fiber-Optic Cable . . . . . . . . . . . . . . . . 362

T640 Attenuation in SONET/SDH PICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362

Calculating Power Budget for Fiber-Optic Cable for M Series, MX Series,

and T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

Calculating Power Margin for Fiber-Optic Cable for M Series, MX Series, and

T Series Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

T640 Routing Engine Interface Cable and Wire Specifications . . . . . . . . . . . . . . 365

T640 RJ-45 Connector Pinouts for the Routing Engine ETHERNET Port . . . . . . 367

T640 DB-9 Connector Pinouts forthe Routing Engine AUXILIARY and CONSOLE

Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

Locating T640 Component Serial Numbers Using the CLI . . . . . . . . . . . . . . . . . 369

Locating T640 Component Serial Number Labels . . . . . . . . . . . . . . . . . . . . . . . . 370

Locating the T640 T-CB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . 370

Locating the T640 CIP Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . 371

Locating the T640 Craft Interface Serial Number Label . . . . . . . . . . . . . . . . 372

Locating the T640 FPC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . 372

Locating the T640 PIC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . 373

Locating the T640 Power Supply Serial Number Label . . . . . . . . . . . . . . . . 374

Locating the T640 Routing Engine Serial Number Label . . . . . . . . . . . . . . . 375

Locating the T640 SCG Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . 375

Locating the T640 SIB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . 376

Contacting Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377

T640 Return Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377

Tools and Parts Required to Remove Components from a T640 Router . . . . . . 378

Packing the T640 Router for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379

Packing T640 Router Components for Shipment . . . . . . . . . . . . . . . . . . . . . . . . 380

Part 5 Index

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

List of Figures

Part 1 T640 Router Product Overview

Chapter 2 Overview of the T640 Router System Architecture . . . . . . . . . . . . . . . . . . . . . 7

Figure 1: Router Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 2: Control Packet Handling for Routing and Forwarding Table Updates . . . . 9

Figure 3: Data Flow Through the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Chapter 3 T640 Router Hardware Component Overview . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 4: Front View of T640 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 5: Rear View of T640 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 6: T640 Midplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 7: FPC Installed in a T640 Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 8: FPC Edges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 9: Enhanced Scaling FPC1 Supported by the T640 Router . . . . . . . . . . . . . 22

Figure 10: Standard FPC2 and FPC3 Supported by the T640 Router . . . . . . . . . . 23

Figure 11: Enhanced II FPC1, FPC2, and FPC3 Supported by the T640 Router . . . . 24

Figure 12: Enhanced Scaling FPC2 Supported by the T640 Router . . . . . . . . . . . . 25

Figure 13: Enhanced Scaling FPC3 Supported by the T640 Router . . . . . . . . . . . . 26

Figure 14: Enhanced Scaling FPC4 Supported by the T640 Router . . . . . . . . . . . . 27

Figure 15: T640 Enhanced Scaling FPC4-1P Supported by the T640 Router . . . . 28

Figure 16: Standard SIB and Standard SIB Version B . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 17: T640 SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 18: Routing Engine 600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 19: Routing Engine 1600 (RE-1600) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Figure 20: Routing Engine 2000 (RE-2000) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Figure 21: T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Figure 22: SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Figure 23: Front Panel of the T640 Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . 42

Figure 24: T640 LCD in Idle Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Figure 25: T640 LCD in Alarm Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Figure 26: CIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Figure 27: Two-Input 160-A DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Figure 28: Three-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Figure 29: Three-Input 240-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . 54

Figure 30: Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Figure 31: Four-Input 240-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . 56

Figure 32: Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Figure 33: Three-Phase Delta AC Power Supply Connections . . . . . . . . . . . . . . . . 58

Figure 34: Three-Phase Delta AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Figure 35: Three-Phase Wye AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Figure 36: Three-Phase Wye AC Power Supply Connections . . . . . . . . . . . . . . . . . 59

T640 Core Router Hardware Guide

Part 2 T640 Router Initial Installation

Chapter 4 Preparing for T640 Router Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Chapter 6 Unpacking the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Chapter 7 Installing the T640 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . 77

Chapter 9 Installing the T640 Router Using a Mechanical Lift . . . . . . . . . . . . . . . . . . . . 87

Chapter 10 Installing the T640 Router Without a Mechanical Lift . . . . . . . . . . . . . . . . . 95

Chapter 12 Connecting the T640 Router to External Devices . . . . . . . . . . . . . . . . . . . . . 117

Chapter 13 Providing Power to the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Figure 37: Wye Three-Phase AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Figure 38: Delta AC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Figure 39: Airflow Through the Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Figure 40: Cable Management System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Figure 41: Typical Open-Frame Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Figure 42: T640 Chassis Dimensions and Clearance Requirements . . . . . . . . . . . 68

Figure 43: Contents of the T640 Shipping Crate . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Figure 44: Positioning the Spacer Bar on the Rack . . . . . . . . . . . . . . . . . . . . . . . . 80

Figure 45: Installing the Mounting Hardware for a Four-Post Rack or Cabinet . . . 81

Figure 46: Installing the Mounting Hardware for an Open-Frame Rack . . . . . . . . 83

Figure 47: Removing a Power Supply Before Installing the Installation Handle . . 89

Figure 48: Attaching the Installation Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Figure 49: Loading the Router onto the Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Figure 50: Installing the Router in the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Figure 51: Reinstalling a Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Figure 52: Removing a Power Supply Before Installing the Router . . . . . . . . . . . . 98

Figure 53: Removing a SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Figure 54: Removing a T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Figure 55: Removing an SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Figure 56: Removing the Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Figure 57: Removing a Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Figure 58: Removing a T640 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Figure 59: Attaching the Installation Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Figure 60: Installing the Router in the Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Figure 61: Reinstalling the Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Figure 62: Reinstalling an SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Figure 63: Reinstalling a T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Figure 64: Reinstalling a SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Figure 65: Reinstalling a Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Figure 66: Reinstalling an FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Figure 67: Reinstalling a Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Figure 68: Routing Engine Management Ports and Alarm Relay Contacts . . . . . . 118

Figure 69: Routing Engine Ethernet Cable Connector . . . . . . . . . . . . . . . . . . . . . . 119

Figure 70: Console and Auxiliary Serial Port Connector . . . . . . . . . . . . . . . . . . . . . 119

Figure 71: Attaching a Cable to a PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Figure 72: Connecting DC Power to a Two-Input 160-A DC Power Supply . . . . . . 125

List of Figures

Figure 73: Connecting DC Power to a Three-Input 240-A DC Power Supply in

2–INPUT Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Figure 74: Connecting Power to the Four-Input 240-A DC Power Supply . . . . . . 129

Figure 75: Connecting Power to a Three-Phase Delta AC Power Supply . . . . . . . 132

Figure 76: Connecting Power to the Three–Phase Wye AC Power Supply . . . . . . 134

Figure 77: Fastening the AC Power Cord to the Power Supply . . . . . . . . . . . . . . . 134

Part 3 T640 Router Hardware Maintenance, Troubleshooting, and

Replacement Procedures

Chapter 15 Maintaining T640 Router Hardware Components . . . . . . . . . . . . . . . . . . . . 145

Figure 78: Do Not Grasp the Connector Edge . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Figure 79: Do Not Carry an FPC with Only One Hand . . . . . . . . . . . . . . . . . . . . . . 154

Figure 80: Do Not Rest the FPC on an Edge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Figure 81: Holding an FPC Vertically . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Figure 82: Do Not Stack FPCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Chapter 17 Replacing T640 Router Hardware Components . . . . . . . . . . . . . . . . . . . . . . 175

Figure 83: Removing a CIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Figure 84: Installing a CIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Figure 85: Routing Engine Interface Ports and Alarm Relay Contacts . . . . . . . . . 180

Figure 86: Ethernet Cable Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

Figure 87: Routing Engine Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Figure 88: Routing Engine Alarm Relay Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Figure 89: Removing a Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

Figure 90: Installing a Front Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188

Figure 91: Removing the Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190

Figure 92: Installing a Rear Fan Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

Figure 93: Removing the Front Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Figure 94: Replacing the Front Filter Element . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Figure 95: Installing the Front Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Figure 96: Removing the Rear Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Figure 97: Removing the Rear Air Filter Element . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Figure 98: Installing the Rear Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196

Figure 99: Removing a Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Figure 100: Installing a Replacement Craft Interface . . . . . . . . . . . . . . . . . . . . . . 198

Figure 101: Removing a T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

Figure 102: Installing a T-CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

Figure 103: Removing a PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

Figure 104: Installing a PC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

Figure 105: Installing the DIMM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206

Figure 106: Removing the Routing Engine Cover . . . . . . . . . . . . . . . . . . . . . . . . . 208

Figure 107: Removing a Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

Figure 108: Installing a Routing Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

Figure 109: Reinstalling the Routing Engine Cover . . . . . . . . . . . . . . . . . . . . . . . . 209

Figure 110: Removing an SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Figure 111: Installing an SCG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Figure 112: Removing a SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Figure 113: Installing a SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

Figure 114: Removing a SIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

T640 Core Router Hardware Guide

Figure 115: Removing a T640 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221

Figure 116: Installing an FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Figure 117: Installing a T640 FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Figure 118: Removing a PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

Figure 119: Installing a PIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

Figure 120: Connecting Fiber-Optic Cable to a PIC . . . . . . . . . . . . . . . . . . . . . . . . 233

Figure 121: Small Form-Factor Pluggable (SFP) . . . . . . . . . . . . . . . . . . . . . . . . . . 233

Figure 122: Removing a XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

Figure 123: Installing a XENPAK Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

Figure 124: Disconnecting Power Cables from a Two-Input 160-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240

Figure 125: Removing a Two-Input 160-A Power Supply . . . . . . . . . . . . . . . . . . . . 241

Figure 126: Rear of the Power Supply Showing Midplane Connectors . . . . . . . . . 241

Figure 127: Installing a Replacement Two-Input 160-A DC Power Supply . . . . . . 244

Figure 128: Connecting Power Cables to a Two-Input 160-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244

Figure 129: Disconnecting Power Cables from the DC Power Supply . . . . . . . . . 246

Figure 130: Rear of the Power Supply Showing Midplane Connectors . . . . . . . . . 247

Figure 131: Removing a Three-Input 240-A DC Power Supply . . . . . . . . . . . . . . . 247

Figure 132: Three-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . 248

Figure 133: Installing a Three-Input 240-A DC Power Supply . . . . . . . . . . . . . . . 249

Figure 134: Standard Cable Restraint on a Three-Input 240-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250

Figure 135: Optional Cable Restraint on a Three-Input 240-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251

Figure 136: Connecting Power Cables to the Power Supply . . . . . . . . . . . . . . . . . 253

Figure 137: Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 255

Figure 138: Disconnecting Power Cables from the Four-Input 240-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256

Figure 139: Removing a Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . 257

Figure 140: Rear of the Power Supply Showing Midplane Connectors . . . . . . . . . 257

Figure 141: Connecting a Power Cable to a Four-Input 240-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Figure 142: Installing a Four-Input 240-A DC Power Supply . . . . . . . . . . . . . . . . 260

Figure 143: Disconnecting a DC Power Cable from a Two-Input 160-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262

Figure 144: Disconnectinga DC Power Cable froma Three-Input 240-A DCPower

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262

Figure 145: Disconnecting a DC Power Cable from a Four-Input 240-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Figure 146: Connecting a DC Power Cable to a Two-Input 160-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Figure 147: Connecting a DC Power Cable to a Three-Input 240-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

Figure 148: Connecting a DC Power Cable to a Four-Input 240-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267

Figure 149: Rear of the DC Power Supply Showing Midplane Connectors . . . . . 268

Figure 150: Disconnecting DCPower Cables from a Two-Input 160-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269

List of Figures

Figure 151: Disconnecting Power Cables from the Three-Input 240-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

Figure 152: Disconnecting Power Cables from the Four-Input 240-A DC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271

Figure 153: Connecting Power to a Three-Phase Delta AC Power Supply . . . . . . 273

Figure 154: Connecting Power to the Three–Phase Wye AC Power Supply . . . . . 273

Figure 155: Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . 275

Figure 156: Disconnecting the Power Cord from a Three-Phase Delta AC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276

Figure 157: Removing a Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . 277

Figure 158: Rear of the Power Supply Showing Midplane Connectors . . . . . . . . . 277

Figure 159: Connecting Power to a Three-Phase Delta AC Power Supply . . . . . . 279

Figure 160: Installing a Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . 280

Figure 161: Three-Phase Delta AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 281

Figure 162: Disconnecting the Power Cord from a Three-Phase Delta AC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282

Figure 163: Connecting Power to a Three-Phase Delta AC Power Supply . . . . . . 284

Figure 164: Three-Phase Wye AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 286

Figure 165: Disconnecting theAC Power Cord from a Three-Phase Wye ACPower

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287

Figure 166: Removing a Three-Phase Wye AC Power Supply . . . . . . . . . . . . . . . 288

Figure 167: Connecting Power to the Three–Phase Wye AC Power Supply . . . . . 289

Figure 168: Installing a Three-Phase Wye AC Power Supply . . . . . . . . . . . . . . . . 290

Figure 169: Three-Phase Wye AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 291

Figure 170: Disconnecting theAC Power Cord froma Three-Phase Wye AC Power

Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

Figure 171: Connecting Power to the Wye 3–Phase AC Power Supply . . . . . . . . . 293

Figure 172: Removing a Front Air Filter Element . . . . . . . . . . . . . . . . . . . . . . . . . . 295

Figure 173: Installing a Front Air Filter Element . . . . . . . . . . . . . . . . . . . . . . . . . . . 295

Figure 174: Removing the AC Power Supply Side Air Filter . . . . . . . . . . . . . . . . . . 297

Figure 175: Installing the Side Power Supply Filter . . . . . . . . . . . . . . . . . . . . . . . . 298

Part 4 Appendixes

Appendix A T640 Safety and Regulatory Compliance Information . . . . . . . . . . . . . . . . 301

Figure 176: Placing a Component into an Electrostatic Bag . . . . . . . . . . . . . . . . . 307

Figure 177: ESD Point on the Front of T640 Chassis . . . . . . . . . . . . . . . . . . . . . . . 307

Figure 178: ESD Point on the Rear View of T640 Chassis . . . . . . . . . . . . . . . . . . 308

Appendix D T640 Power Guidelines, Requirements, and Specifications . . . . . . . . . . . 345

Figure 179: T640 DC Power and Grounding Cable Lug . . . . . . . . . . . . . . . . . . . . . 346

Figure 180: T640 DC Power and Grounding Cable Lug . . . . . . . . . . . . . . . . . . . . 352

Figure 181: Typical DC Source Cabling from PEM0 to Feed A . . . . . . . . . . . . . . . . 354

Figure 182: Typical DC Source Cabling from PEM1 to Feed B . . . . . . . . . . . . . . . . 354

Figure 183: Three-Phase Delta AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Figure 184: Three-Phase Wye AC Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

Appendix G Contacting Customer Support and Returning T640 Router Hardware . . 369

Figure 185: Serial Number ID Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370

Figure 186: T-CB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371

T640 Core Router Hardware Guide

Figure 187: CIP Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371

Figure 188: Craft Interface Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . 372

Figure 189: FPC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373

Figure 190: PIC Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374

Figure 191: Power Supply Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . 374

Figure 192: Routing Engine Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . 375

Figure 193: SCG Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

Figure 194: SIB Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

List of Tables

About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

Table 1: Notice Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

Table 2: Text and Syntax Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

Part 1 T640 Router Product Overview

Chapter 1 T640 Router Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Table 3: Field-Replaceable Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Chapter 3 T640 Router Hardware Component Overview . . . . . . . . . . . . . . . . . . . . . . . . . 13

Table 4: Identifying the FPCs Supported by the T640 Router . . . . . . . . . . . . . . . . 20

Table 5: FPCs Supported by the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table 6: SIB LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Table 7: Routing Engine 600 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Table 8: Routing Engine 1600 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Table 9: Routing Engine 2000 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 10: T-CB LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Table 11: SCG LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Table 12: Alarm LEDs and Alarm Cutoff/Lamp Test Button . . . . . . . . . . . . . . . . . . 43

Table 13: T640 Host Subsystem LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 14: SIB LEDs on the Craft Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Table 15: FPC LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Table 16: Components Powered by Each Input . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Table 17: Fault Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Table 18: Two-Input 160-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . 51

Table 19: Components Powered by Each Three-Input 240-A DC Power Supply

Table 20: Fault Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Table 21: Three-Input 240-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . 54

Table 22: Components Powered by Each Four-Input 240-A DC Power Supply

Table 23: Four-Input 240-A DC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . 56

Table 24: Delta AC Power Supply LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Part 2 T640 Router Initial Installation

Chapter 4 Preparing for T640 Router Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Table 25: Site Preparation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Chapter 6 Unpacking the T640 Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Table 26: Router Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Table 27: Accessory Box Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

T640 Core Router Hardware Guide

Chapter 7 Installing the T640 Router Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . 77

Part 3 T640 Router Hardware Maintenance, Troubleshooting, and

Chapter 16 Troubleshooting T640 Router Hardware Components . . . . . . . . . . . . . . . . 163

Chapter 17 Replacing T640 Router Hardware Components . . . . . . . . . . . . . . . . . . . . . . 175

Part 4 Appendixes

Appendix B T640 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341

Appendix C T640 Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343

Appendix D T640 Power Guidelines, Requirements, and Specifications . . . . . . . . . . . 345

Appendix E T640 Router Cable and Wire Guidelines and Specifications . . . . . . . . . . . 361

Appendix F T640 Router Cable Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

Table 28: T640 Four-Post or Cabinet Rack Mounting Hole Locations . . . . . . . . . 78

Table 29: T640 Open-Frame Rack Mounting Hole Locations . . . . . . . . . . . . . . . . 82

Replacement Procedures

Table 30: T640 Chassis Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Table 31: SONET/SDH Interface Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . 167

Table 32: Tools and Parts Required for Component Replacement . . . . . . . . . . . . 175

Table 33: Effect of Taking the Host Subsystem Offline . . . . . . . . . . . . . . . . . . . . 199

Table 34: T640 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341

Table 35: Router Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 343

Table 36: T640 Power System Electrical Specifications . . . . . . . . . . . . . . . . . . . 347

Table 37: T640 Two-Input 160-A DC Power Supply Electrical Specifications . . 348 Table 38: T640 Three-Input 240-A DC Power Supply Electrical

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Table 39: Four-Input 240-A DC Power Supply Electrical Specifications . . . . . . . 349

Table 40: T640 Component DC Power Requirements . . . . . . . . . . . . . . . . . . . . 350

Table 41: T640 Power Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352

Table 42: T640 AC Power System Electrical Specifications . . . . . . . . . . . . . . . . 355

Table 43: Three-Phase Delta AC Power Supply Electrical Specifications . . . . . . 355

Table 44: Three-Phase Wye AC Power Supply Electrical Specifications . . . . . . . 356

Table 45: T640 Base AC Power Requirments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357

Table 46: Typical AC Power Requirements for T640 Components . . . . . . . . . . . 357

Table 47: Three-Phase Delta and Wye AC Power Cord Specifications . . . . . . . . 359

Table 48: Estimated Values for Factors Causing Link Loss . . . . . . . . . . . . . . . . 364

Table 49: Cable and Wire Specifications for Routing Engine Management and

Alarm Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365

Table 50: RJ-45 Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

Table 51: DB-9 Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

About the Documentation

•

Junos OS Documentation and Release Notes on page xxv

•

Objectives on page xxv

•

Audience on page xxvi

•

Documentation Conventions on page xxvi

•

Documentation Feedback on page xxvii

•

Requesting Technical Support on page xxviii

Junos OS Documentation and Release Notes

For a list of related Junos OS documentation, see

http://www.juniper.net/techpubs/software/junos/ .

If the information in the latest release notes differs from the information in the documentation, follow the Junos OS Release Notes.

To obtain the most current version of all Juniper Networks®technical documentation, see the product documentation page on the Juniper Networks website at

http://www.juniper.net/techpubs/.

Objectives

This documentation describes hardware components, installation, basic configuration, and basic troubleshooting procedures for the Juniper Networks T640 Router. It explains how to prepare your site for router installation, unpack and install the hardware, power on the router, perform initial software configuration, and perform routine maintenance. After completing the installation and basic configuration procedures covered in this documentation, see the Junos OS configuration guides for information about further Junos OS configuration.

NOTE: For additional information about Juniper Networks routers and the

Physical Interface Cards (PICs) they support—either corrections to or informationthat mighthave been omitted from this guide—see the hardware release notes at http://www.juniper.net/.

T640 Core Router Hardware Guide

Audience

This documentation is designed for network administrators who are installing and maintaining a Juniper Networks router or preparing a site for router installation. To use the documentation, you need a broad understanding of networks in general, the Internet in particular, networking principles, and network configuration. Any detailed discussion of these concepts is beyond the scope of this hardware documentation.

Documentation Conventions

Table 1 on page xxvi defines the notice icons used in this guide.

Table 1: Notice Icons

DescriptionMeaningIcon

Indicates important features or instructions.Informational note

Table 2 on page xxvi defines the text and syntax conventions used in this guide.

Table 2: Text and Syntax Conventions

Represents text that you type.Bold text like this

Fixed-width text like this

Italic text like this

Represents output that appears on the terminal screen.

•

Introduces important new terms.

•

Identifies book names.

•

Identifies RFC and Internet draft titles.

Indicates a situation that might result in loss of data or hardware damage.Caution

Alerts you to the risk of personal injury or death.Warning

Alerts you to the risk of personal injury from a laser.Laser warning

ExamplesDescriptionConvention

To enter configuration mode, type the

configure command:

user@host> configure

user@host> show chassis alarms

No alarms currently active

•

A policy term is a named structure that defines match conditions and actions.

•

Junos System Basics Configuration Guide

•

RFC 1997, BGP Communities Attribute

Table 2: Text and Syntax Conventions (continued)

About the Documentation

ExamplesDescriptionConvention

Italic text like this

Text like this

| (pipe symbol)

# (pound sign)

[ ] (square brackets)

Indention and braces ( { } )

; (semicolon)

Represents variables (options for which you substitute a value) in commands or configuration statements.

Represents names of configuration statements, commands, files, and directories; IP addresses; configuration hierarchy levels; or labels on routing platform components.

Indicates a choice betweenthe mutually exclusivekeywords or variables on either side of the symbol. The set of choices is often enclosed in parentheses for clarity.

same lineas theconfiguration statement to which it applies.

Enclose a variable for which you can substitute one or more values.

Identify a level in the configuration hierarchy.

Identifies a leaf statement at a configuration hierarchy level.

Configure the machine’s domain name:

[edit] root@# set system domain-name

domain-name

•

To configure a stub area, include the

stub statement at the [edit protocols ospf area area-id] hierarchy level.

•

The console port is labeled CONSOLE.

stub <default-metric metric>;Enclose optional keywords or variables.< > (angle brackets)

broadcast | multicast

(string1 | string2 | string3)

rsvp { # Required for dynamic MPLS onlyIndicates a comment specified on the

community name members [ community-ids ]

[edit] routing-options {

static {

route default{

nexthop address; retain;

}

J-Web GUI Conventions

Bold text like this

> (bold right angle bracket)

Documentation Feedback

We encourage you to provide feedback, comments, and suggestions so that we can improve the documentation. You can send your comments to

techpubs-comments@juniper.net, or fill out the documentation feedback form at

Represents J-Web graphical user interface (GUI) items you click or select.

Separates levels in a hierarchy of J-Web selections.

•

In the Logical Interfaces box, select All Interfaces.

•

To cancel the configuration, click Cancel.

In the configuration editor hierarchy, select Protocols>Ospf.

T640 Core Router Hardware Guide

https://www.juniper.net/cgi-bin/docbugreport/. If you are using e-mail, be sure to include

the following information with your comments:

•

Document or topic name

•

URL or page number

•

Software release version (if applicable)

Requesting Technical Support

Technical productsupport is available through the Juniper Networks Technical Assistance Center (JTAC). If you are a customer with an active J-Care or JNASC support contract, or are covered under warranty, and need post-sales technical support, you can access our tools and resources online or open a case with JTAC.

•

JTAC policies—For a complete understanding of our JTAC procedures and policies, review the JTAC User Guide located at

http://www.juniper.net/us/en/local/pdf/resource-guides/7100059-en.pdf .

•

Product warranties—For product warranty information, visit

http://www.juniper.net/support/warranty/ .

•

JTAC hours of operation—The JTAC centers have resources available 24 hours a day, 7 days a week, 365 days a year.

Self-Help Online Tools and Resources

For quick and easy problem resolution, Juniper Networks has designed an online self-service portal called the Customer Support Center (CSC) that provides you with the following features:

•

Find CSC offerings: http://www.juniper.net/customers/support/

•

Search for known bugs: http://www2.juniper.net/kb/

•

Find product documentation: http://www.juniper.net/techpubs/

•

Find solutions and answer questions using our Knowledge Base: http://kb.juniper.net/

•

Download the latest versions of software and review release notes:

http://www.juniper.net/customers/csc/software/

•

Search technical bulletins for relevant hardware and software notifications:

https://www.juniper.net/alerts/

•

Join and participate in the Juniper Networks Community Forum:

http://www.juniper.net/company/communities/

•

Open a case online in the CSC Case Management tool: http://www.juniper.net/cm/

To verifyservice entitlement by product serialnumber,use ourSerial NumberEntitlement (SNE) Tool: https://tools.juniper.net/SerialNumberEntitlementSearch/

Opening a Case with JTAC

You can open a case with JTAC on the Web or by telephone.

•

Use the Case Management tool in the CSC at http://www.juniper.net/cm/ .

•

Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).

For international or direct-dial options in countries without toll-free numbers, see

http://www.juniper.net/support/requesting-support.html .

About the Documentation

T640 Core Router Hardware Guide

PART 1

T640 Router Product Overview

•

T640 Router Overview on page 3

•

Overview of the T640 Router System Architecture on page 7

•

T640 Router Hardware Component Overview on page 13

T640 Core Router Hardware Guide

CHAPTER 1

T640 Router Overview

•

T640 Router Description on page 3

•

T640 Field-Replaceable Units (FRUs) on page 4

•

T640 Component Redundancy on page 5

T640 Router Description

The T640 Core Router is a complete routing system that provides Gigabit Ethernet, SONET/SDH, and other high-speed interfacesfor large networksand networkapplications, such as those supported by Internet service providers (ISPs).

Application-specific integrated circuits (ASICs) are a definitive part of the router design; these ASICs enable the router to achieve data forwarding rates that match current fiber-optic capacity.

The router accommodates up to eight Flexible PIC Concentrators (FPCs), which can each be configured with a variety of network media types—altogether providing up to 128 SONET/SDH OC48/STM16, 32 SONET/SDH OC192/STM64, or 128 Gigabit Ethernet ports for the router. In a standalone configuration, the router's maximum aggregate throughput is 320 Gbps, full duplex.

Documentation

The router architecture cleanly separates control operations from packet forwarding operations. This design eliminates processing and traffic bottlenecks, permitting the router to achieve high performance. Control operations in the router are performed by the host subsystem, whichruns Junos OS tohandle routingprotocols, traffic engineering, policy, policing, monitoring, and configuration management. Forwarding operations in the router are performed by the Packet Forwarding Engines, which consist of hardware, including ASICs, designed by Juniper Networks.

The router is a modular, rack-mountable system. Two routers can be installed in one standard, 78-in. telco rack.

T640 Chassis Description on page 13•

• T640 Physical Specifications on page 341

• T640 Environmental Specifications on page 343

• T640 DC Power System Electrical Specifications on page 347

T640 Core Router Hardware Guide

T640 Field-Replaceable Units (FRUs)

•

T640 Router FRU Overview on page 4

•

T640 FRU List on page 4

T640 Router FRU Overview

Field-replaceable units (FRUs) are router components that can be replaced at the customer site. Replacing most FRUs requires minimal router downtime. The router uses the following types of FRUs:

•

Hot-removable and hot-insertable FRUs—You can remove and replace these components without powering off the router or disrupting the routing functions.

•

Hot-pluggableFRUs—You can removeand replace these componentswithout powering down the router, but the routing functions of the system are interrupted when the component is removed.

If the router contains a redundant host subsystem, the Control Board (T-CB), and the Routing Engine are hot-removable and hot-insertable. Before you replace a T-CB or a Routing Engine, you must take the host subsystem offline.

Documentation

T640 FRU List

T640 Router Description on page 3•

• T640 FRU List on page 4

• Taking the T640 Host Subsystem Offline on page 198

Table 3 on page 4 lists the FRUs for the router.

Table 3: Field-Replaceable Units

Hot-Pluggable FRUsHot-Removable and Hot-Insertable FRUs

Air filters

Flexible PIC Concentrators (FPCs)

Front and rear fan trays

Physical Interface Cards (PICs)

Power supplies

Backup SONET Clock Generators (SCGs)

Switch Interface Boards (SIBs)

Master T-CB (if nonstop active routing is configured)

Connector Interface Panel (CIP)

Nonredundant T-CB

Master T-CB (if nonstop active routing is not configured)

Nonredundant Routing Engine

MasterRouting Engine(if nonstop active routing is not configured)

Master and nonredundant SCGs

Backup T-CB

Backup Routing Engine

Chapter 1: T640 Router Overview

Documentation

T640 Router Description on page 3•

• T640 Router FRU Overview on page 4

• Taking the T640 Host Subsystem Offline on page 198

T640 Component Redundancy

The T640 Core Router is designed so that no single point of failure can cause the entire system to fail. The following major hardware components are redundant:

•

Switch Interface Boards (SIBs)—The router has five SIBs. A T640 router that is connected to a TX Matrix platform requires T640-SIBs ; see “T640 Switch Interface Boards (SIBs) Description” on page 30) Each Type 1 FPC and Type 2 FPC has a dedicated ASIC with five high-speed links that connect to the SIBs (one link per SIB). Each Type 3 FPC has two dedicated ASICs, and each ASIC has five high-speed links that connect to the SIBs (a total of 10 links). Each Type 4 FPC has one dedicated ASIC with ten high-speed links that connect to the SIBs (two links per SIB). One of the five SIBs—usually SIB4—acts as a backup to the remaining four SIBs. If a SIB fails, the backup SIB becomes active and traffic forwarding continues without any degradation. When the failed SIB is replaced, it becomes the new backup.

•

Host subsystem—The host subsystem consists ofa Routing Enginefunctioning together with a T-CB. The router can have one or two host subsystems. If two host subsystems are installed, one functions as the master and the other functions as the backup. If the master host subsystem (or either of its components) fails, the backup can take over as the master. To operate, each host subsystem requires a Routing Engine installed in an adjacent slot to a T-CB.

Documentation

If theRouting Enginesare configured for graceful switchover, thebackup Routing Engine automatically synchronizes its configurationand state with the master Routing Engine. Any update to the master Routing Engine state is replicated on the backup Routing Engine. Ifthe backupRouting Engine assumes mastership, packet forwarding continues through the router without interruption. For more information aboutgraceful switchover, see the Junos OS System Basics Configuration Guide.

•

SONET Clock Generators (SCGs)—The router has a standard configuration of one SCG. A second can be purchased to function as backup. If one SCG fails, the other becomes the masterSCG.Mastershipof the SCGs isindependent of the host subsystem, so routing functions are not affected.

•

Power supplies—The router has two power supplies, which share the load evenly. If one power supply fails, the other power supply can provide full power to the router indefinitely.

•

Cooling system—Thecooling system has redundantcomponents, whichare controlled by the host subsystem. If one of the fans fails, the host subsystem increases the speed of the remaining fans to provide sufficient cooling for the router indefinitely.

• T640 Router Description on page 3

• Reinstalling Components in the T640 Chassis on page 108

T640 Core Router Hardware Guide

• T640 System Architecture Description on page 7

CHAPTER 2

Overview of the T640 Router System Architecture

•

T640 System Architecture Description on page 7

•

T640 Routing Engine Functions on page 8

•

T640 Packet Forwarding Engine Architecture on page 9

•

Data Flow Through the T640 Router on page 10

T640 System Architecture Description

The T640 Core Router has two main architectural components:

•

Routing Engine—This component provides Layer 3 routing services and network management.

•

PacketForwardingEngines—Thesehigh-performance,ASIC-basedcomponents provide Layer 2 and Layer 3 packet switching, route lookups, and packet forwarding.

Documentation

The Routing Engine and the Packet Forwarding Engines perform their primary tasks independently, although theyconstantly communicate through multiple 100-Mbps links. This arrangement streamlines forwarding and routing control and runs Internet-scale backbone networks at high speeds. Figure 1 on page 7 shows the relationship between the Routing Engine and the Packet Forwarding Engines.

Figure 1: Router Architecture

T640 Chassis Description on page 13•

• Safety Requirements, Warnings, and Guidelines for Installing the T640 Router on

page 85

T640 Core Router Hardware Guide

T640 Routing Engine Functions

The Routing Engine handles all routing protocol processes, as well as the software processes that control the router's interfaces, the chassis components, system management, and user access to the router. These routing and software processes run on topof a kernel that interacts withthe Packet Forwarding Engine. For more information about the processes, see the Junos OS System Basics and Services Command Reference.

The Routing Engine includes the functions and features:

•

Processing of routing protocol packets—The Routing Engine handles all packets that concern routing protocols, freeing thePacketForwarding Engineto handle only packets that represent Internet traffic.

•

Softwaremodularity—Becauseeach software process is devoted to a different function and uses a separate process space, the failure of one process has little or no effect on the others.

•

In-depth Internet functionality—Each routingprotocolis implemented with a complete set ofInternet featuresand provides fullflexibility for advertising, filtering, and modifying routes. Routing policies are set according to route parameters (for example, prefix, prefix lengths, and BGP attributes).

•

Scalability—The Junos routing tables have been designed to hold all the routes in current networks with ample capacity for expansion. Additionally, the Junos OS can efficiently support large numbers of interfaces and virtual circuits.

•

Management interface—Different levels of system management tools are provided, including the Junos OS command-line interface (CLI), the Junos XML management protocol, the craft interface, and SNMP.

•

Storage and change management—Configuration files,system images, andmicrocode can be held and maintained in primary and secondary storage systems, permitting local or remote upgrades.

•

Monitoring efficiency and flexibility—The router supports functions such as alarm handling and packet counting on every port, without degrading packet-forwarding performance.

The Routing Engine constructs and maintains one or more routing tables (see Figure 2 on page 9). From the routing tables, the Routing Engine derives a table of active routes, called the forwarding table, which is then copied into the Packet Forwarding Engine. The design of the ASICs allow the forwarding table in the Packet Forwarding Engine to be updated without interrupting forwarding performance.

Chapter 2: Overview of the T640 Router System Architecture

Figure 2: Control Packet Handling for Routing and Forwarding Table Updates

Documentation

Replacing a T640 Routing Engine on page 206•

• T640 Routing Engine Description on page 32

• Maintaining the T640 Routing Engines on page 148

T640 Packet Forwarding Engine Architecture

The Packet Forwarding Engines provide the Layer 2 and Layer 3 packet switching, forwarding, and route lookup functions. In a maximum configuration with eight Type 3 FPCs installed, the Packet Forwarding Engines can forward up to 640 million packets per second (Mpps) for all packet sizes. The maximum aggregate throughput rate for the T640 router is 320 Gbps (full duplex). The Packet Forwarding Engines are implemented in ASICs that are physically located on the FPCs and the PICs.

Each Packet Forwarding Engine consists of the following components (see Figure 3 on page 10):

•

Layer 2/Layer 3 Packet Processing ASIC, which performs Layer 2 and Layer 3 encapsulation and de-encapsulation, and manages the division and reassembly of packets within the T640 router.

•

Queuing and Memory Interface ASICs, which manage the buffering of data cells in memory and the queueing of notifications.

•

T-series Internet Processor, which provides the route lookup function.

Documentation

•

Switch Interface ASICs, which extract the route lookup key and manage the flow of data cells across the switch fabric.

•

Media-specific ASICs on the PICs that perform control functions tailored to the PIC media types.

T640 Chassis Description on page 13•

• T640 Physical Specifications on page 341

T640 Core Router Hardware Guide

• Replacing T640 Packet Forwarding Engine Components on page 219

Data Flow Through the T640 Router

To ensure the efficient movement of data through the T640 Core Router, the router is designed so that ASICs on the hardware components handle the forwarding of data. Data flows through the T640 router in the following sequence (see Figure 3 on page 10):

Figure 3: Data Flow Through the T640 Router

1. Packets arrive at an incoming PIC interface.

2. The PIC passes the packets to the FPC, where the Layer 2/Layer 3 Packet Processing

ASIC performs Layer 2 and Layer 3 parsing and divides the packets into 64-byte cells.

3. The Switch Interface ASIC extracts the route lookup key, places it in a notification and

passes the notification to the T-series Internet Processor. The Switch Interface ASIC also passes the data cells to the Queuing and Memory Interface ASICs for buffering.

4. The Queuing and Memory InterfaceASICs pass the data cellsto memoryfor buffering.

5. The T-series Internet Processorperforms theroute lookup and forwards the notification

to the Queuing and Memory Interface ASIC.

6. TheQueuing andMemory Interface ASIC sends the notification to theSwitch Interface

ASIC facing the switch fabric, unless the destination is onthe samePacket Forwarding Engine. In this case, the notification is sent back to the Switch Interface ASIC facing

Chapter 2: Overview of the T640 Router System Architecture

the outgoing ports, and the packets are sent to the outgoing port without passing through the switch fabric (see Step 13).

7. The Switch Interface ASIC sends bandwidth requests through the switch fabric to the

destination port. The Switch Interface ASIC also issues read requests to the Queuing and Memory Interface ASIC to begin reading data cells out of memory.

8. The destination Switch Interface ASIC sends bandwidth grants through the switch

fabric to the originating Switch Interface ASIC.

9. On receipt of each bandwidth grant, the originating Switch Interface ASIC sends a

cell through the switch fabric to the destination Packet Forwarding Engine.

10. The destination Switch Interface ASIC receives cells from the switch fabric. It extracts

the route lookup key from each cell, places it in a notification, and forwards the notification to the T-series Internet Processor.

11. The T-series Internet Processor performs the route lookup, and forwards the

notification to the Queuing and Memory Interface ASIC.

12. The Queuing and Memory Interface ASIC forwardsthe notification, including next-hop

information, to the Switch Interface ASIC.

Documentation

13. The Switch Interface ASIC sends read requests to the Queuing and Memory Interface

ASIC to read the data cells out of memory, and passes the cells to the Layer 2/Layer 3 Packet Processing ASIC.

14. The Layer 2/Layer 3 Packet Processing ASIC reassembles the data cells into packets,

adds Layer 2 encapsulation, and sends the packets to the outgoing PIC interface.

15. The outgoing PIC sends the packets out into the network.

• T640 Chassis Description on page 13

• T640 Physical Specifications on page 341

• Replacing T640 Packet Forwarding Engine Components on page 219

T640 Core Router Hardware Guide

CHAPTER 3

T640 Router Hardware Component Overview

These topics provide an overview of the T640 router hardware components:

•

T640 Chassis Description on page 13

•

T640 Midplane Description on page 16

•

T640 Flexible PIC Concentrators (FPCs) Overview on page 18

•

T640 PIC Description on page 29

•

T640 Switch Interface Boards (SIBs) Description on page 30

•

T640 Host Subsystem Overview on page 32

•

T640 SONET Clock Generators (SCGs) Overview on page 40

•

T640 Craft Interface Overview on page 41

•

T640 Connector Interface Panel (CIP) Description on page 46

•

T640 Routing Engine Ports on page 47

•

T640 Alarm Relay Contacts on page 48

•

T640 Power System Overview on page 48

•

T640 Cooling System Description on page 61

•

T640 Cable Management System Description on page 62

T640 Chassis Description

The T640 Core Router chassis is a rigid sheet metal structure that houses all the other router components (see Figure 4 on page 15 and Figure 5 on page 16). The chassis measures 37.45 in. (95.1 cm) high, 31 in. (78.7 cm) deep, and 17.43 in. (44.3 cm) wide. For physical specifications, see “T640 Physical Specifications” on page 341. The chassis can be installed into many types of racks or cabinets. For more information. see “T640 Rack Requirements” on page 66.

The chassis includes the following features (see Figure 4 on page 15 and Figure 5 on page 16):

•

One pairof metal flanges for front-mounting ormounting ina four-post rack or cabinet.

•

One pair of metal brackets for center-mounting.

T640 Core Router Hardware Guide

•

Installation handles on each side to facilitate positioning the router in the rack. Do not use the handles to lift the router.

Two electrostatic discharge (ESD) points (banana plug receptacles), one front and one rear.

CAUTION: Before removing or installing components of a router, attach

an ESD strap to an ESD point and place the other end of the strap around your bare wrist. Failure to use an ESD strap could result in damage to the router.

WARNING: The router must be connected to earth ground during normal operation.

Chapter 3: T640 Router Hardware Component Overview

Figure 4: Front View of T640 Chassis

T640 Core Router Hardware Guide

Figure 5: Rear View of T640 Chassis

For chassis serial number information , see “Locating T640 Component Serial Numbers Using the CLI” on page 369.

Documentation

Safety Requirements, Warnings, and Guidelines for Installing the T640 Router on

•

page 85

• T640 Physical Specifications on page 341

• T640 Chassis Grounding Cable and Lug Specifications on page 345

• T640 Chassis Lifting Guidelines on page 310

T640 Midplane Description

The T640 Core Router midplane is located in the center of the chassis and forms the rear of the FPC card cage (see Figure 6 on page 17). The FPCs install into the midplane from the front of the chassis, and the SIBs, Routing Engines, control boards, and SCGs

Chapter 3: T640 Router Hardware Component Overview

install into the midplane from the rear of the chassis. The power supplies and cooling system components also connect to the midplane.

The midplane performs the following major functions:

•

Data path—Data packets are transferred across the midplane from the Packet Forwarding Engine on the originating FPC to the SIBs, and from the SIBs across the midplane to the Packet Forwarding Engine on the destination FPC.

•

Power distribution—The router power supplies are connected to the midplane, which distributes power to all the router components.

•

Signal path—The midplane providesthe signalpath to theFPCs, SIBs,Routing Engines, and T-CBs, and other system components for monitoring and control of the system.

Figure 6: T640 Midplane

For chassis serial number information , see “Locating T640 Component Serial Numbers Using the CLI” on page 369.

T640 Core Router Hardware Guide

Documentation

T640 Router Description on page 3•

• Safety Requirements, Warnings, and Guidelines for Installing the T640 Router on

page 85

• T640 Physical Specifications on page 341

T640 Flexible PIC Concentrators (FPCs) Overview

•

T640 FPC Description on page 18

•

T640 FPCs Supported on page 28

T640 FPC Description

Up to eight Flexible PIC Concentrators (FPCs) install vertically in the front of the T640 Core Router (see Figure 7 on page 19). The FPC slots are numbered left to right from

FPC0 to FPC7. An FPC can be installed into any FPC slot on the router, regardless of which

PICs it contains.

If a slot is not occupied by an FPC, an FPC blank panel must be installed to shield the empty slot and to allow cooling air to circulate properly through the router.

Each FPC contains oneor two Packet ForwardingEngines. ThePacketForwarding Engines receive incoming packets from the PICs installed on the FPC and forward them through the switch planes to the appropriate destination port. Each FPC contains data memory that is managed by the Queuing and Memory Interface ASICs.

FPCs are hot-removable andhot-insertable, as describedin “T640 Router FRU Overview” on page 4. When you install an FPC into a functioning router, the Routing Engine downloads the FPC software, the FPC runs its diagnostics, and the PICs housed on the FPC are enabled. Forwarding continues uninterrupted during this process. For FPC replacement instructions, see “Replacing a T640 FPC” on page 219.

Each FPC consists of the following components:

•

FPC card carrier.

•

One ortwo Packet ForwardingEngines, consisting ofLayer2/Layer 3 Packet Processing ASICs, Switch Interface ASICs, T-series Internet Processor ASICs, and a Memory Mezzanine Board (MMB) which includes the Queuing and Memory Interface ASICs. Each Type 1, Type 2, and Type 4 FPChas one Packet Forwarding Engine, and each Type 3 FPC has two Packet Forwarding Engines.

•

ProcessorMezzanine Board(PMB), which includes a 300-MHz CPU,system controller, 256 MB of SDRAM, and two Fast Ethernet interfaces.

•

Two LEDs, located on the craft interface above the FPC, that display the status of the FPC. For more information about the FPC LEDs, see “T640 Craft Interface FPC LEDs and Online/Offline Buttons” on page 45.

•

FPC online/offline button, located on the craft interface above the FPC.

Chapter 3: T640 Router Hardware Component Overview

Figure 7: FPC Installed in a T640 Chassis

FPC Terminology

Regardless of whether you are holding an FPC vertically or horizontally, this document uses the same terms for all four edges of the FPC (see Figure 8 on page 20):

•

Faceplate—Edge of the FPC that has slots into which you insert the PICs

•

Connectoredge—Edge opposite the faceplate;this edgehas the connectorsthat attach to the midplane

•

Top edge—Edge at the top of the FPC when it is vertical

•

Bottom edge—Edge at the bottom of the FPC when it is vertical

T640 Core Router Hardware Guide

Figure 8: FPC Edges

Identifying T640 FPCs

Check the label on the faceplate to identify the FPC. For FPCs without a label on the faceplate, check the location of a PIC's offline button and how the PIC is secured to the FPC. See Table 4 on page 20.

Table 4: Identifying the FPCs Supported by the T640 Router

Location of PIC Offline ButtonLabelon theFPC FaceplateFPC

E FPC1Enhanced FPC1

of the PIC

E-II FPC1Enhanced II FPC1

of the PIC

T640-FPC1-ESEnhanced Scaling FPC1

of the PIC

NoneFPC2

the faceplate of each PIC

E FPC2Enhanced FPC2

the faceplate of each PIC

E-II FPC2Enhanced II FPC2

the faceplate of each PIC

Methodof Securingthe PIC to the FPC

Two captive screwsSlightly beneath thefaceplate

Two captive screwsInside an opening directly on

T640-FPC2-ESEnhanced Scaling FPC2

the faceplate of each PIC

Two captive screwsInside an opening directly on

Chapter 3: T640 Router Hardware Component Overview

Table 4: Identifying the FPCs Supported by the T640 Router (continued)

FPC4-1P

Location of PIC Offline ButtonLabelon theFPC FaceplateFPC

NoneFPC3

E FPC3Enhanced FPC3

E-11 FPC3Enhanced II FPC3

T640-FPC3-ESEnhanced Scaling FPC3

FPC4T640 EnhancedScaling FPC4

T640-FPC4–1P-EST640 Enhanced Scaling

Inside an opening directly on the faceplate of each PIC

Methodof Securingthe PIC to the FPC

Plastic ejector handle at the top of the PIC faceplate; captive screw at the bottom of the PIC faceplate

Two plastic ejector handles at the top and bottom of the PIC faceplate

g004427

T640 Core Router Hardware Guide

The T640 router supports the Enhanced Scaling FPC1, as shown in Figure 9 on page 22.

Figure 9: Enhanced Scaling FPC1 Supported by the T640 Router

The T640 routersupports thestandard FPC2 andFPC3, as shown in Figure 10 on page 23.

g003925

FPC2

FPC3

Chapter 3: T640 Router Hardware Component Overview

Figure 10: Standard FPC2 and FPC3 Supported by the T640 Router

T640 Core Router Hardware Guide

The T640 router supports the Enhanced II FPC1, FPC2 and FPC3, as shown in Figure 11 on page 24.

Figure 11: Enhanced II FPC1, FPC2,and FPC3 Supported by the T640 Router

g004433

Chapter 3: T640 Router Hardware Component Overview

The T640 router supports the Enhanced Scaling FPC2, as shown in Figure 12 on page 25.

Figure 12: Enhanced Scaling FPC2 Supported by the T640 Router

The T640 router supports the Enhanced Scaling FPC3, as shown in Figure 13 on page 26.

T640 Core Router Hardware Guide

Figure 13: Enhanced Scaling FPC3 Supported by the T640 Router

Chapter 3: T640 Router Hardware Component Overview

The T640 router supports the Enhanced Scaling FPC4, as shown in Figure 14 on page 27.

Figure 14: Enhanced Scaling FPC4 Supported by the T640 Router

g004434

T640 Core Router Hardware Guide

The T640 router supports the T640 Enhanced Scaling FPC4-1P, as shown in Figure 15 on page 28.

Figure 15: T640 EnhancedScaling FPC4-1P Supportedby the T640 Router

Documentation

T640 FPCs Supported

T640 FPCs Supported on page 28•

• Maintaining T640 FPCs on page 151

• Troubleshooting the T640 FPCs on page 169

T640 routers support the FPCs listed in Table 5 on page 29. You can install any combination of the following FPCs.

Table 5: FPCs Supported by the T640 Router

FPC Model NumberFPC NameFPC Type

FPC1

FPC2

Chapter 3: T640 Router Hardware Component Overview

Maximum Number of PICs

Maximum Throughput per FPC

First Junos OS Release

6.34 Gbps4T640-FPC1-EEnhanced FPC11

7.44 Gbps4T640-FPC1-E2Enhanced II FPC1

9.44 Gbps4T640-FPC1-ESEnhanced Scaling

5.316 Gbps4T640-FPC2FPC22

6.316 Gbps4T640-FPC2-EEnhanced FPC2

7.416 Gbps4T640-FPC2-E2Enhanced II FPC2

9.516 Gbps4T640-FPC2-ESEnhanced Scaling

FPC3

FPC4

FPC4-1P

Documentation

• T640 Craft Interface FPC LEDs and Online/Offline Buttons on page 45

• Troubleshooting the T640 FPCs on page 169

T640 PIC Description

PICs provide the physical connection to various network media types,receiving incoming packets from the network and transmitting outgoing packets to the network. During this process, each PIC performs framing and line-speed signaling for its media type. Before transmitting outgoing data packets, the PICs encapsulate the packets received from the FPCs. Each PIC is equipped with an ASIC that performs control functions specific to the media type of that PIC.

5.340 Gbps4T640-FPC3FPC33

6.340 Gbps4T640-FPC3-EEnhanced FPC3

7.440 Gbps4T640-FPC3-E2Enhanced II FPC3

9.040 Gbps4T640-FPC3-ESEnhanced Scaling

7.550 Gbps1T640-FPC4-ESEnhanced Scaling

9.550 Gbps1T640-FPC4-1P-ESEnhanced Scaling

Maintaining T640 FPCs on page 151•

T640 Core Router Hardware Guide

PICs are hot-removable and hot-insertable. You can install up to four PICs in the slots of each Type 1, 2, and 3 FPC, and one PIC in a Type 4 FPC. Type 1 and Type 2 PICs have captive screws at theirupper and lower corners. Type 3 PICs have an upper ejector handle and a lower captive screw. Type 4 PICs have an upper ejector handle and a lower ejector handle.

The router supportsvarious PICs,including ATM, Channelized, GigabitEthernet, IPServices, and SONET/SDH interfaces. Blank PICs resemble other PICs but do not provide any physical connection or activity. When a slot is not occupied by a PIC, you must insert a blank PIC to fill the empty slot and ensure proper cooling of the system.

Documentation

T640 PICs Supported•

• T640 End-of-Life PICs Supported

T640 Switch Interface Boards (SIBs) Description

The Switch Interface Boards (SIBs) provide the switching function to the destination FPC (see Figure 16 on page 31).

The SIBs create the switch fabric for the router, providing up to a total of 640 million packets per second (Mpps) of forwarding. Five SIBs are installed in the router. The SIBs are located at the center rear of the chassis in the slots labeled SIB0 through SIB4 (top to bottom).

SIBs are hot-insertable and hot-removable.

Each Type 1 FPC and Type 2 FPC has a dedicated ASIC with five high-speed links that connect to the SIBs (one link per SIB). Each Type 3 FPC has two dedicated ASICs, and each ASIC has five high-speed links that connect to the SIBs (a total of 10 links). Each Type 4 FPC has one dedicated ASIC with ten high-speed links that connect to the SIBs (two links per SIB).One of the five SIBs—usually SIB4—acts as abackup tothe remaining four SIBs. If a SIB fails, the backup SIB becomes active and traffic forwarding continues without any degradation. When the failed SIB is replaced, it becomes the new backup.

The T640 router supports these types of SIBs:

•

Standard SIB

•

Standard SIB version B (supported in Junos OS Release 7.3 and later) is required to support the Enhanced Scaling FPCs in a standalone T640 router. If you use one or more Enhanced Scaling FPCs in a T640 router that is not part of a routing matrix, each SIB in the router must be a SIB version B. All the SIBs in the T640 router can be either standard SIB or SIB version B. You cannot use both on the same router at the same time.

Chapter 3: T640 Router Hardware Component Overview

Figure 16: Standard SIB and Standard SIB Version B

•

The T640-SIB (supported in Junos OS Release 7.0 and later) is required to support T640 routers connected to a TX Matrix platform); see Figure 17 on page 31. The T640 SIB supports the Enhanced Scaling FPC4 for T640 routers connected to a TX Matrix platform.

Figure 17: T640 SIB

Each SIB consists of the following components:

•

Switch Fabric ASICs.

•

High-speed links (HSLs) to each FPC.

•

Three LEDs located on the SIB faceplate that display the status of the SIB. Table 6 on page 31 describes the functions of the SIB LEDs. If all three LEDs are off, the SIB is not receiving power. The OK and FAIL LEDs are replicated on the craft interface.

•

SIB online/offline button, located on the SIB faceplate.

Table 6: SIB LEDs

DescriptionStateColorLabel

SIB is in active mode.On steadilyGreenACTIVE

SIB is functioning normally.On steadilyGreenOK

SIB is starting up.Blinking

SIB has failed.On steadilyYellowFAIL

T640 Core Router Hardware Guide

Documentation

Maintaining the T640 SIBs on page 158•

• Replacing a T640 SIB on page 212

• Upgrading to a T640 Standard SIB Version B on page 214

T640 Host Subsystem Overview

•

T640 Host Subsystem Description on page 32

•

T640 Routing Engine Overview on page 32

•

T640 T Series Control Boards (T-CBs) Description on page 38

•

T640 T Series Control Boards (T-CBs) LEDs on page 39

T640 Host Subsystem Description

The host subsystem provides the routing and system management functions of the router. You can install one or two host subsystems on the router. To operate, each host subsystem functions as a unit; the Routing Engine requires the corresponding T–CB, and vice versa.

NOTE: We recommend that you install two host subsystems for redundant

protection. If you install only one host subsystem, we recommend that you install it in slot RE0.

Each host subsystem has three LEDs that display its status. The host subsystem LEDs are located on the upper right of the craft interface. For more information about the host subsystem LEDs, see “T640 Craft Interface Host Subsystem LEDs” on page 44.

Documentation

Replacing the T640 Host Subsystem Components on page 198•

• Taking the T640 Host Subsystem Offline on page 198

• Maintaining the T640 Host Subsystem on page 148

T640 Routing Engine Overview

•

T640 Routing Engine Description on page 32

•

T640 RE-600 Description on page 33

•

T640 RE-1600 Description on page 35

•

T640 RE-2000 Description on page 36

T640 Routing Engine Description

The Routing Engine is an Intel-based Peripheral Component Interconnect (PCI) platform that runs Junos OS. Software processes that run on the Routing Engine maintain the routing tables, manage the routing protocols used on the router, control the router interfaces, control some chassis components, and provide the interface for system management and user access to the router.

Chapter 3: T640 Router Hardware Component Overview

The T640 router is shipped with the Junos OS preinstalled and ready to be configured when the T640 router is powered on. There are three copies of the software: one on a CompactFlash card in the Routing Engine, one on a rotating hard disk in the Routing Engine, and one on a PC Card that can be inserted into the slot in the Routing Engine faceplate.

You can install one or two Routing Engines in the router. The Routing Engines install into the upperrear ofthe chassisin the slots labeled RE0 and RE1.Each Routing Engine requires a T-CB to be installed in the adjacent slot. RE0 installs below CB0, and RE1 installs above

CB1. A Routing Engine does not power up without a control board present in the adjacent

slot.

NOTE: If two Routing Engines are installed, they must both be the same

hardware model.

If two Routing Engines are installed, one functions as the master and the other acts as the backup. If the masterRouting Engine fails or is removed, and the backup is configured appropriately, the backup takes over as the master. If the host system is redundant, the backup Routing Engine is hot-removable and hot-insertable, but the master Routing Engine is hot-pluggable. A Routing Engine that is not redundant requires that you power down the router before replacement.

Documentation

NOTE: For specific information about Routing Engine components (for example, the amount of DRAM), issue the show chassis routing-engine command.

The ports forconnecting theRouting Engine toexternal management devices are located on the Connector InterfacePanel (CIP).The CIP has three ports for each host subsystem:

•

10/100-Mbps Ethernet port for connecting to a management network

•

One asynchronous serial port for connecting to a console

•

One asynchronous serial port for connecting to a modem or other auxiliary device

Replacing a T640 Routing Engine on page 206•

• T640 Routing Engine Functions on page 8

• Maintaining the T640 Routing Engines on page 148

T640 RE-600 Description

The RE-600 Routing Engine boots from the storage media in this order: the PC Card (if present), then the CompactFlash card (if present), then the hard disk.

T640 Core Router Hardware Guide

Figure 18: Routing Engine 600

Each Routing Engine 600 (shown in Figure 18 on page 34) consists of the following components:

•

CPU—Runs Junos OS to maintain the router's routing tables and routing protocols. It has a Pentium-class processor.

•

SDRAM—Provides storage for the routing and forwarding tables and for other Routing Engine processes.

•

CompactFlash card—Providesprimary storagefor software images, configuration files, and microcode. The fixed CompactFlash card is inaccessible from outside the router.

•

Hard disk—Provides secondary storage for log files, memory dumps, and rebooting the system if the CompactFlash card fails.

•

EEPROM—Stores the serial number of the Routing Engine.

•

Interfaces for management access—Provide information about Routing Engine status to devices (console, laptop, or terminal server) connected to ports located on the Connector Interface Panel (CIP).

The faceplate of the Routing Engine 600 contains the following:

•

One PC Card slot—Accepts a removable PC Card, which stores software images for system upgrades.

•

Reset button—Reboots the Routing Engine when pressed.

•

HD LED—Indicates activity on the hard drive. It does not necessarily indicate routing-related activity.

NOTE: The LEDs that report host modulestatus (including RoutingEngine

status) are on the craft interface ratherthan the Routing Engine faceplate.

•

HD LED—Table 7 on page 35 describes the functions of the LED.

Table 7: Routing Engine 600 LEDs

Chapter 3: T640 Router Hardware Component Overview

DescriptionStateColorLabel

Documentation

YellowHD

blinking

Indicates activity on the hard drive.On steadily or

NOTE: The LEDs on the Routing Engine do not necessarily indicate

routing-related activity.

Replacing a T640 Routing Engine on page 206•

• T640 Routing Engine Functions on page 8

• Maintaining the T640 Routing Engines on page 148

T640 RE-1600 Description

The RE-1600 Routing Engine boots from the storage media in this order: the PC Card in

SLOT 0 (if present), then the PC Card in SLOT 1 (if present), then the CompactFlash card

(if present), then the hard disk.

Figure 19: Routing Engine 1600 (RE-1600)

Each RE-1600 (shown in Figure 19 on page 35) consists of the following components:

•

CPU—Runs Junos OS to maintain the router's routing tables and routing protocols. It has a Pentium-class processor.

•

SDRAM—Provides storage for the routing and forwarding tables and for other Routing Engine processes.

•

CompactFlash card—Providesprimary storagefor software images, configuration files, and microcode. The fixed CompactFlash card is inaccessible from outside the router.

•

Hard disk—Provides secondary storage for log files, memory dumps, and rebooting the system if the CompactFlash card fails.

T640 Core Router Hardware Guide

•

The faceplate of the RE-1600 contains the following:

•

Table 8: Routing Engine 1600 LEDs

EEPROM—Stores the serial number of the Routing Engine.

Interfaces for management—Provide information about Routing Engine status to devices (console, laptop, or terminal server) connected to the Routing Engine ports located on the CIP.

Two PC Card slots—Accept removable PC Cards, which store software images for system upgrades.

Reset button—Reboots the Routing Engine when pressed.

LEDs—Table 8 on page 36 describes the functions of these LEDs.

DescriptionStateColorLabel

Documentation

Slot LEDs 0 and 1

BlinkingRed and green alternately

On steadilyGreen

YellowHD

blinking

Indicates that the Routing Engine is booting and the firmware is checking if a PC card is installed.

Indicates that the RoutingEngine booted from the PC Card.

Indicates activity on the hard drive.On steadily or

NOTE: The LEDs on the Routing Engine do not necessarily indicate

routing-related activity.

NOTE: The LEDs that report host modulestatus (including RoutingEngine status) are on the craft interface ratherthan the Routing Engine faceplate.

Replacing a T640 Routing Engine on page 206•

• T640 Routing Engine Functions on page 8

• Maintaining the T640 Routing Engines on page 148

T640 RE-2000 Description

The RE-2000Routing Engine boots from thestorage media in this order: the USBdevice, then the CompactFlash card (if present), then the hard disk, then the LAN.

Chapter 3: T640 Router Hardware Component Overview

Figure 20: Routing Engine 2000 (RE-2000)

Each RE-2000 (shown in Figure 20 on page 37) consists of the following components:

•

CPU—Runs Junos OS to maintain the router's routing tables and routing protocols. It has a Pentium-class processor.

•

DRAM—Provides storage for the routing and forwarding tables and for other Routing Engine processes.

•

CompactFlash card—Providesprimary storagefor software images, configuration files, and microcode. The fixed CompactFlash card is inaccessible from outside the router.

•

Hard disk—Provides secondary storage for log files, memory dumps, and rebooting the system if the CompactFlash card fails.

•

EEPROM—Stores the serial number of the Routing Engine.

•

Interfaces for management access—Provide information about Routing Engine status to devices (console, laptop, or terminal server) connected to the Routing Engine ports located on the CIP.

The faceplate of the RE-2000 contains the following:

•

USB port—Provides a removable media interface through which you can install the Junos OS manually. Junos OS supports USB version 1.0.

•

Reset button—Reboots the Routing Engine when pressed.

•

Offline button—Takes the Routing Engine offline when pressed.

•

Extractor clips—Control the locking system that secures the Routing Engine.

•

LEDs—Table 9 on page 37 describes the functions of these LEDs.

Table 9: Routing Engine 2000 LEDs

DescriptionStateColorLabel

Indicates disk activity for the hard disk drive.On steadilyBlueHDD

Routing Engine is functioning normally.On steadilyGreenONLINE

Routing Engine is transitioning online.Blinking

Routing Engine has failed.On steadilyRed

T640 Core Router Hardware Guide

NOTE: The LEDs on the Routing Engine do not necessarily indicate

routing-related activity.

Documentation

Replacing a T640 Routing Engine on page 206•

• T640 Routing Engine Functions on page 8

• Maintaining the T640 Routing Engines on page 148

T640 T Series Control Boards (T-CBs) Description

This chassis supports up to two T-CBs. The Routing Engine requires an adjacent T-CB to provide control and monitoring functions for the router (see Figure 21 on page 38). These functions include determining Routing Engine mastership, controlling power and reset for the other router components, monitoring and controlling fan speed, and monitoring system status.

You can install up to two T-CBs in the router. Control boards install into the upper rear of the chassis in the slots labeled CB0 and CB1 (referred to as CB-0 and CB-1, top to bottom). If two T-CBs are installed, one functions as the master and the other as its backup. If the master fails or is removed, the backup restarts and becomes the master.

Each T-CB requires a Routing Engine to be installed in the adjacent slot. CB0 installs above RE0, and CB1 installs below RE1. T-CBs cannot function if a Routing Engine is not present in the adjacent slot.

If the host system is redundant, the backup T-CB is hot-removable and hot-insertable, but the master T-CB is hot-pluggable. A T-CB that is not redundant is hot-pluggable.

Figure 21: T-CB

NOTE: The T-CB requires Junos OS Release 7.0 or later.

Chapter 3: T640 Router Hardware Component Overview

Each T-CB consists of the following components:

•

100-MB Ethernet switch for intermodule communication.

•

PCI bus to the Routing Engines.

•

Processor subsystem (SPMB).

•

Three LEDs, located on the T-CB faceplate, indicate its status.

•

The T-CB online/offline button, located on the faceplate.

NOTE: When the adjacent Routing Engine is online, the online/offline

button on the T-CB faceplate is nonfunctional. For more information, see “Taking the T640 Host Subsystem Offline” on page 198.

•

Two configuration switches, located on the faceplate:

•

For a standalone T640 router, the M/S and CHASSISID configuration switches must always be set to S and 0.

•

For T640 routers connected to a TX Matrix platform, the M/S and CHASSIS ID configuration switches must always be set to M and the chassis identifier (ID) of the router. In this case, bothT-CBs must have the same chassis ID. For more information, see the TX Matrix Router Hardware Guide.

•

Two RJ-45 ports labeled AUX and CIP on the T-CB faceplate.

•

For a standalone T640 router, these ports are not used.

•

For T640 routers connected to a TX Matrix platform, only the CIP port is used. For more information, see the TX Matrix Router Hardware Guide.

Documentation

T640 Chassis Description on page 13•

• Replacing a T640 T-CB on page 201

• Maintaining the T640 T-CBs on page 149

T640 T Series Control Boards (T-CBs) LEDs

Three LEDs, located on the T-CB faceplate, indicate its status. Table 10 on page 39 describes the functions of the T-CB LEDs.

Table 10: T-CB LEDs

DescriptionStateColorLabel

T-CB is functioning as the master.On steadilyBlueMASTER

T-CB has failed.On steadilyYellowFAIL

T640 Core Router Hardware Guide

Table 10: T-CB LEDs (continued)

DescriptionStateColorLabel

T-CB is online and is functioning normally.On steadilyGreenOK

T-CB is powering up, but not online.Blinking

Documentation

T640 Chassis Description on page 13•

• Replacing a T640 T-CB on page 201

• Maintaining the T640 T-CBs on page 149

T640 SONET Clock Generators (SCGs) Overview

•

T640 Standard SONET Clock Generators (SCGs) Description on page 40

•

T640 SONET Clock Generators (SCGs) LEDs on page 41

T640 Standard SONET Clock Generators (SCGs) Description

The SONET Clock Generators (SCGs) provide 19.44-MHz Stratum 3 clock signal for the SONET/SDH interfaces on the router (see Figure 22 on page 40).

One SCG is shipped as part of the standard router configuration, but up to two SCGs can be installed to provide redundancy. SCGs are installed into the upper rear of the chassis in the slots labeled SCG0 and SCG1.

Backup SCGs are hot-removable and hot-insertable. Master and nonredundant SCGs are hot-pluggable.

Figure 22: SCG

Each standard SCG consists of the following components:

•

19.44-MHz Stratum 3 clock.

•

Field-programmable gate array (FPGA) that performs multiplexing of clock sources.

•

Three LEDs, located on the SCG faceplate, that display the status of the SCG.

•

SCG online/offline button, located on the SCG faceplate.

•

Two external clock inputs.

Chapter 3: T640 Router Hardware Component Overview

NOTE: The external clock inputs are not supported on the standard SONET

Clock Generator (SCG) .

Documentation

Replacing a T640 SCG on page 210•

• Maintaining the T640 SCGs on page 150

• Locating the T640 SCG Serial Number Label on page 375

T640 SONET Clock Generators (SCGs) LEDs

Three LEDs, located on the SCG faceplate, display the status of the SCG. Table 11 on page 41 describes the functions of the SCG LEDs.

Table 11: SCG LEDs

Documentation

Replacing a T640 SCG on page 210•

• Maintaining the T640 SCGs on page 150

DescriptionStateColorLabel

On steadilyGreenOK

SCG is online and is functioning normally.

SCG has failed.On steadilyYellowFAIL

SCG is functioning as master.On steadilyBlueMASTER

• Locating the T640 SCG Serial Number Label on page 375

T640 Craft Interface Overview

•

T640 Craft Interface Description on page 41

•

T640 Craft Interface Alarm LEDs and ACO/LT Button on page 42

•

T640 Craft Interface LCD and Navigation Buttons on page 43

•

T640 Craft Interface Host Subsystem LEDs on page 44

•

T640 Craft Interface SIB LEDs on page 45

•

T640 Craft Interface FPC LEDs and Online/Offline Buttons on page 45

T640 Craft Interface Description

The craft interface allows you to view status and troubleshooting information at a glance and to perform many system control functions. It is hot-insertable and hot-removable. The craft interface is located on the front of the router above the FPCs and contains the following:

T640 Core Router Hardware Guide

Figure 23: Front Panel of the T640 Craft Interface

Documentation

T640 Chassis Description on page 13•

• Troubleshooting Using the T640 Craft Interface LEDs

• Replacing a T640 Craft Interface on page 196

T640 Craft Interface Alarm LEDs and ACO/LT Button

Two large alarm LEDs are located at the upper left of the craft interface (see Figure 23 on page 42). The circular red LED lights to indicate a critical condition that can result in a system shutdown. The triangular yellow LED lights to indicate a less severe condition that requires monitoring or maintenance. Both LEDs can be lit simultaneously.

A condition that causes an LED to light also activates the corresponding alarm relay contact on the connector interface panel (CIP), as described in “T640 Alarm Relay Contacts” on page 48. The LCD on the craft interface reports the cause of the alarm, as described in “T640 Craft Interface LCD and Navigation Buttons” on page 43.

To deactivate red and yellow alarms, press the button labeled ACO/LT (for “alarm cutoff/lamp test”), which is located to the right of the alarm LEDs. Deactivating analarm turns off both LEDs and deactivates the device attached to the corresponding alarm relay contact on the CIP. However, the LCD continues to report the alarm message until you clear the condition that caused the alarm.

Table 12 on page 43 describes the alarm LEDs and alarm cutoff button in more detail.

Chapter 3: T640 Router Hardware Component Overview

Table 12: Alarm LEDs and Alarm Cutoff/Lamp Test Button

DescriptionStateColorShape

On steadilyRed

On steadilyYellow

——

Documentation

T640 Chassis Description on page 13•

• Troubleshooting Using the T640 Craft Interface LEDs

• Replacing a T640 Craft Interface on page 196

T640 Craft Interface LCD and Navigation Buttons

A four-line LCD is located in the craft interface, along with six navigation buttons. The LCD operates in two modes:

•

LED Idle Mode

Critical alarm LED—Indicates a criticalcondition that can cause the router to stop functioning. Possible causes include component removal, failure, or overheating.

Warningalarm LED—Indicatesa seriousbut nonfatal error condition, such as a maintenance alert or a significant increase in component temperature.

Alarm cutoff/lamp test button—Deactivates red and yellowalarms. Causesall LEDs on the craft interface to light (for testing purposes), when pressed and held.

•

LED Alarm Mode

During normal operation, the LCD operates in idle mode and reports current status information, as shown in Figure 24 on page 43.

Figure 24: T640 LCD in Idle Mode

The lines in the display report the following information:

•

First line—Router name.

•

Second line—Length of time the router has been running, reported in the following form:

Up days + hours:minutes

T640 Core Router Hardware Guide

•

To add a message that alternates every 2 seconds with the default status messages, use the set chassis display message command. For more information, see the Junos OS System Basics and Services Command Reference.

When a red or yellow alarm occurs, the LCD switches to alarm mode and reports the alarm condition, as shown in Figure 25 on page 44.

Figure 25: T640 LCD in Alarm Mode

The lines in the display report the following information:

Third and fourth lines—Status messages, which rotate at 2-second intervals. Some conditions, such as removal or insertion of a system component, can interrupt the messages.

•

First line—Router name.

•

Second line—Number of active alarms.

•

Third and fourth lines—Individual alarm messages, with the most severe condition shown first. The prefix oneach line indicates whether the alarm isa red(R) or yellow (Y) alarm.

For a list of alarm messages that can appear on the LCD, see “Troubleshooting Using the T640 Chassis and Interface Alarm Messages” on page 165.

Documentation

T640 Chassis Description on page 13•

• Troubleshooting Using the T640 Craft Interface LEDs

• Replacing a T640 Craft Interface on page 196

T640 Craft Interface Host Subsystem LEDs

Each host subsystem has three LEDs, located on the upper right of the craft interface, that indicate its status. The LEDs labeled HOST0 show the status of the Routing Engine in slot RE0 and the T-CB in slot CB0. The LEDs labeled HOST1 show the status of the Routing Engine in slot RE1 and the T-CB in slot CB1. Table 13 on page 44 describes the functions of the host subsystem LEDs.

Table 13: T640 Host Subsystem LEDs

DescriptionStateColorLabel

Host is offline.On steadilyRedFAIL

Host is online and is functioning normally.On steadilyGreenOK

Chapter 3: T640 Router Hardware Component Overview

Table 13: T640 Host Subsystem LEDs (continued)

DescriptionStateColorLabel

Host is functioning as the master.On steadilyGreenMASTER

Documentation

T640 Chassis Description on page 13•

• Troubleshooting Using the T640 Craft Interface LEDs

• Replacing a T640 Craft Interface on page 196

T640 Craft Interface SIB LEDs

Each SIBhas two LEDson the craft interfacethat indicate its status. The SIB LEDs, labeled

SIB0 through SIB4, are located on the upper right of the craft interface. The ACTIVE LED

is not replicated on the craft interface. Table 14 on page 45 describes the functions of the SIB LEDs.

Table 14: SIB LEDs on the Craft Interface

Documentation

T640 Chassis Description on page 13•

• Troubleshooting Using the T640 Craft Interface LEDs

• Replacing a T640 Craft Interface on page 196

DescriptionStateColorLabel

SIB has failed.On steadilyRedFAIL

SIB is functioning normally.On steadilyGreenOK

T640 Craft Interface FPC LEDs and Online/Offline Buttons

Each FPC slot has two LEDs that indicate its status.The FPC LEDs, labeled FPC0 through

FPC7, are located along the bottom of the craft interface. Table 15 on page 45 describes

the functions of the FPC LEDs.

Table 15: FPC LEDs

DescriptionStateColorLabel

FPC has failed.On steadilyRedFAIL

FPC is functioning normally.On steadilyGreenOK

FPC is starting up.Blinking

T640 Core Router Hardware Guide

Documentation

T640 Chassis Description on page 13•

• Troubleshooting Using the T640 Craft Interface LEDs

• Replacing a T640 Craft Interface on page 196

T640 Connector Interface Panel (CIP) Description

The Connector Interface Panel (CIP) consists of Ethernet, console, and auxiliary connectors for the Routing Engines and alarm relay contacts (see Figure 26 on page 47). The front electrostatic discharge point is located near the bottom of the CIP. The CIP is located at the left side of the FPC card cage.

The CIP is hot-pluggable.

Figure 26: CIP

Chapter 3: T640 Router Hardware Component Overview

Documentation

T640 Chassis Description on page 13•

• Replacing the T640 CIP on page 177

• Locating the T640 CIP Serial Number Label on page 371

T640 Routing Engine Ports

The CIP has two sets of ports that you use to connect the Routing Engines to external management devices. Fromthese management devices, youcan use theCLI toconfigure the router.

T640 Core Router Hardware Guide

The upper set of ports, labeled HOST 0, connects to the Routing Engine in slot RE0; and the lower set, labeled HOST 1, connectsto theRouting Enginein slotRE1. Eachset includes the following ports:

•

ETHERNET—Connects the Routing Engine through an Ethernet connection to a

management LAN (or any other device that plugs into an Ethernet connection) for out-of-band management. The port uses an autosensing RJ-45 connector to support both 10- and 100-Mbps connections. Two small LEDs on the left edge of the port indicate the connection in use: the yellow LED lights for a 10-Mbps connection and the green LED lights for a 100-Mbps connection.

CONSOLE—Connects the Routing Engine to a system console through an RS-232

(EIA-232) serial cable.

AUXILIARY—Connects theRouting Engine to a laptop,modem, or other auxiliary device

through an RS-232 (EIA-232) serial cable.

Documentation

T640 Connector Interface Panel (CIP) Description on page 46•

• T640 DB-9 Connector Pinouts for the Routing Engine AUXILIARY and CONSOLE Ports

on page 368

• T640 RJ-45 Connector Pinouts for the Routing Engine ETHERNET Port on page 367

• Replacing the T640 Connections to Routing Engine Interface Ports on page 180

T640 Alarm Relay Contacts

The CIPhas two alarm relay contacts for connecting the router to external alarmdevices. Whenever a system condition triggers eitherthe red oryellowalarm onthe craft interface, the alarm relay contacts are also activated. The alarm relay contacts are located below the Routing Engine ports. The terminal blocks that plug into the alarm relay contacts are supplied with the router. They accept wire of any gauge between 28-AWG and 14-AWG (0.08 and 2.08 mm2), which is not provided. Use the gauge of wire appropriate for the external device you are connecting.

Documentation

T640 Connector Interface Panel (CIP) Description on page 46•

• Replacing the T640 Alarm Relay Wires on page 184

• T640 Routing Engine Interface Cable and Wire Specifications on page 365

• T640 Routing Engine Ports on page 47

T640 Power System Overview

•

T640 Power System Description on page 49

•

T640 Two-Input 160-A DC Power Supply Overview on page 49

•

T640 Two-Input 160-A DC Power Supply LEDs on page 51

•

T640 Three-Input 240-A DC Power Supply Overview on page 52

•

T640 Three-Input 240-A DC Power Supply LEDs on page 53

•

T640 Four-Input 240-A DC Power Supply Overview on page 55

•

T640 Four-Input 240-A DC Power Supply LEDs on page 56

•

T640 Three-Phase Delta and Wye AC Power Supply Overview on page 57

•

T640 Three-Phase Delta and Wye AC Power Supply LEDs on page 60

T640 Power System Description

The T640 Core Router supports these power supplies:

•

Two Two-input 160-A DC power supplies are supported in Junos OS Release 5.3 and later.

•

Two Three-input 240-A DC power supplies in 2-INPUT mode are supported in Junos OS Release 8.5 and later.

•

Two Four-input 240-A DC power supplies are supported in Junos OS Release 10.0 and later.

Chapter 3: T640 Router Hardware Component Overview

NOTE: Mixing power supplies with a different number of inputs in the same

router is supported only during upgrade. Mixing different types of power supplies is not supported during normal operations.

Documentation

Powering On a DC-Powered T640 Router on page 130•

• Maintaining the T640 Power Supplies on page 159

• T640 DC Power System Electrical Specifications on page 347

T640 Two-Input 160-A DC Power Supply Overview

•

Two-Input 160-A DC Power Supply Description on page 49

•

Two-Input 160-A DC Power Supply Inputs on page 50

•

Two-Input 160-A DC Power Supply Load Sharing and Fault Tolerance on page 50

Two-Input 160-A DC Power Supply Description

Each two-input 160-A DC power supply weighsapproximately 23lb (10.5kg) andconsists of two inputs, two 80-A (@ –48 VDC) circuit breakers, a fan, and LEDs to monitor the status of the power supply. Figure 27 on page 50 shows the two-input 160-A DC power supply.

T640 Core Router Hardware Guide

Figure 27: Two-Input 160-A DC Power Supply

Two-Input 160-A DC Power Supply Inputs

Each two-input 160-A DC power supply has two inputs—INPUT 1 and INPUT 0, from top to bottom—each with its own 80-A (@ –48 VDC) circuit breaker.

NOTE: All inputs on the two-input 160-A DC powersupply in slotPEM0 must

be powered by dedicatedpower feeds derived from feed A, and all inputs on the two-input 160-A DC power supply in slot PEM1 must be powered by dedicated power feeds derived from feed B. This configuration provides the commonly deployed A/B feed redundancy for the system.

Table 16 on page 50 describes which components are powered by each input.

Table 16: Components Powered by Each Input

Provides Power to These ComponentsInput

INPUT 0

Two-Input 160-A DC Power Supply Load Sharing and Fault Tolerance

When the router is operating normally and both power supplies in a redundant power system are switched on, load sharing between them occurs automatically. When one power supply fails or is turned off, the other power supply immediately assumes the entire electrical load for the system. A single power supply with both inputs active can provide full power for as long as the router is operational. Table 17 on page 51 describes the behavior of the two-input160-A DC power supply and router if one of the inputs fails.

FPCs in slots FPC0 and FPC1, SIBs, T-CBs, Routing Engines, CIP, craft interface, and fan trays

FPCs in slots FPC2 through FPC7INPUT 1

Table 17: Fault Tolerance

Fault Tolerance When One Input Fails or Is DisconnectedRedundancy

Nonredundant power supplies

If either input fails, the router shuts down.

NOTE: We recommend that you install redundant power supplies.

Chapter 3: T640 Router Hardware Component Overview

If either input on one power supply fails, the other power supply assumes the electrical load for both inputs. If one of the inputs on the other power supply is not functional, the router shuts down.

Documentation

Redundantpowersupplies

T640 Power System Description on page 49•

• Powering On a DC-Powered T640 Router on page 130

• Maintaining the T640 Power Supplies on page 159

T640 Two-Input 160-A DC Power Supply LEDs

Four LEDs on each two-input 160-A DC power supply faceplate indicate the status of the power supply. In addition, a power supply failure triggers the red alarm LED on the craft interface. Table 18 on page 51 describes the functions of the power supply LEDs.

Table 18: Two-Input 160-A DC Power Supply LEDs

On steadilyYellowCB TRIP

DescriptionStateColorLED

Circuit breaker is on.On steadilyGreenCB OK

Circuit breaker is off.Off

Circuit breaker is not turned on, or host subsystem has detected a failure and has turned the circuit breaker off.

Off

On steadilyYellowOVER TEMP

Off

On steadilyBlueDC OK

Blinking

No problems have occured with circuit breaker, or the power supply is off.

Power supply has exceeded recommended temperature.

Power supply is within the recommended temperature or is not turned on.

Power supply is installed correctly and is functioning normally.

Power supply is starting up, is not properly installed, or is not functioning correctly. One of the inputs mighthave failed, or the power supplymight not be receiving sufficient power.

Power supply is not powered on.Off

T640 Core Router Hardware Guide

Documentation

T640 Power System Description on page 49•

• Powering On a DC-Powered T640 Router on page 130

• Maintaining the T640 Power Supplies on page 159

T640 Three-Input 240-A DC Power Supply Overview

•

Three-Input 240-A DC Power Supply Description on page 52

•

Three-Input 240-A DC Power Supply Inputs on page 52

•

Three-Input 240-A DC Power Supply Load Sharing and Fault Tolerance on page 53

Three-Input 240-A DC Power Supply Description

Each three-input 240-A DCpower supply weighsapproximately 25 lb(11.3 kg)and consists of three inputs, three 80-A circuit breakers, a fan, and LEDs to monitor the status of the power supply. Figure 28 on page 52 shows the three-input 240-A DC power supply in

2-INPUT mode.

Figure 28: Three-Input 240-A DC Power Supply

Three-Input 240-A DC Power Supply Inputs

The three-input 240-A DC powersupply inputsare labeled INPUT 0, INPUT 1, and INPUT2, from top to bottom. Each input consists of –48 VDC and return, each with its own 80-A circuit breaker. The input mode switch on the faceplate allows you to set the DC power supply to either 2–INPUT or 3–INPUTmode. 2-INPUTmode isrequired for the T640router and TX Matrix router.

Table 19 on page 53 describes which components are powered by each input.

Chapter 3: T640 Router Hardware Component Overview

Table 19: Components Powered by Each Three-Input 240-A DC Power Supply Input

Three-Input ModeInput

INPUT 0

T640-SIBs, T-CBs, fan trays, Routing Engines, and FPCs in slots FPC0 and

FPC1

FPCs in slots FPC2 through FPC7INPUT 1

Documentation

INPUT 2

This input is not supported in 2–INPUT mode.

Three-Input 240-A DC Power Supply Load Sharing and Fault Tolerance

When the router is operating normally and both power supplies are switched on, load sharing between them occurs automatically. When one power supply fails or is turned off, the other power supply immediately assumes theentire electrical loadfor the system. A single power supply canprovide fullpower for aslong as the router is operational. Table 20 on page 53 describes the behavior of the power supply if one of the inputs fails.

Table 20: Fault Tolerance

Fault Tolerance When One Input Fails or is DisconnectedRedundancy

Nonredundant power supply

Redundant power supplies

T640 Power System Description on page 49•

• Powering On a DC-Powered T640 Router on page 130

If this input fails, the router shuts down.

NOTE: We recommend that you install redundant power supplies.

If an input on one power supply fails, the other power supply assumes theelectrical loadfor allinputs. Ifone input on the other power supply is not functional, the router shuts down.

• Maintaining the T640 Power Supplies on page 159

T640 Three-Input 240-A DC Power Supply LEDs

LEDs on each power supply faceplate (see Figure 29 on page 54) indicate the status of the power supply. In addition, a power supply failure triggers the red alarm LED on the craft interface. Table 21 on page 54 describes the functions of the power supply LEDs.

T640 Core Router Hardware Guide

Figure 29: Three-Input 240-A DC Power Supply LEDs

Table 21 on page 54 describes the three-input 240-A DC power supply LEDs.

Table 21: Three-Input 240-A DC Power Supply LEDs

input

Off

DescriptionStateColorLED

Circuit breaker is on.On steadilyGreenCB ON—One per

Circuit breaker is not turned on, or host subsystem has detected a failure and has turned the circuit breaker off.

Documentation

On steadilyBlueDC OK—One per

power supply

Blinking

PRESENT—One

per input

On steadilyYellowOVER

TEMP—One per

power supply

Off

T640 Power System Description on page 49•

• Powering On a DC-Powered T640 Router on page 130

When the power supply is correctly set to 2-INPUT mode and INPUT 0 and INPUT1 are properlyenergized, the DC OK LED indicates that the power supply is functioning normally.

Power supply is starting up, is not functioning, is not properly installed, or is not operating properly.

Input is receiving voltage.On steadilyGreenINPUT

Input voltage is not present.Off

Power supply has exceeded recommended temperature.

Power supply is within the recommended temperature or the power supply is not on.

• Maintaining the T640 Power Supplies on page 159

T640 Four-Input 240-A DC Power Supply Overview

g004659

LEDs

Circuit breakers

•

Four-Input 240-A DC Power Supply Description on page 55

•

Four-Input 240-A DC Power Supply Inputs on page 55

•

Four-Input 240-A DC Power Supply Load Sharing and Fault Tolerance on page 55

Four-Input 240-A DC Power Supply Description

Each four-input 240-A DC power supply weighs approximately 26.6 lb (12.0 kg) and consists of four inputs, four 60-A circuit breakers, a fan, and LEDs to monitor the status of the power supply. Figure 30 on page 55 shows the four-input 240-A DC power supply.

Figure 30: Four-Input 240-A DC Power Supply

Chapter 3: T640 Router Hardware Component Overview

Four-Input 240-A DC Power Supply Inputs

The four-input 240-ADC power supply inputs are labeled INPUT 0, INPUT1, and INPUT 2, and INPUT 3 from top to bottom. Each input consists of –48 VDC and return, each with its own 60-A circuit breaker.

Table 22 on page 55 describes which components are powered by each input.

Table 22: Components Powered by Each Four-Input 240-A DC Power Supply Input

ComponentsInput

SIBs, control boards,Routing Engines, andhalf thesystem fanpowerINPUT 0

FPCs in slots FPC0 and FPC1 and half the system fan powerINPUT 1

FPCs in slots FPC2 through FPC4INPUT 2

FPCs in slots FPC5 through FPC7INPUT 3

Four-Input 240-A DC Power Supply Load Sharing and Fault Tolerance

CIRCUITBREAKERS FOR MIN. 60 SEC.TO DE-ENERGIZE THE UNIT COMPLETELYBEFORE TURN ON.

g004660

Power supply LEDs

60A

INPUT 3

T640 Core Router Hardware Guide

A single power supply can provide full power for as long as the router is operational. If any of the four inputs fails, the router shuts down, and the other power supply assumes the electrical load for all four inputs.

Documentation

T640 Four-Input 240-A DC Power Supply LEDs on page 56•

• Troubleshooting the T640 Power System on page 171

• Replacing a T640 Four-Input 240-A DC Power Supply on page 254

• T640 DC Power Supply Electrical Specifications on page 348

T640 Four-Input 240-A DC Power Supply LEDs

LEDs on each four-input 240-A DC power supply faceplate (see Table 23 on page 56) indicate the status of the power supply. In addition, a power supply failure triggers the red alarm LED on the craft interface. Figure 31on page56 displays the powersupply LEDs.

Figure 31: Four-Input 240-A DC Power Supply LEDs

Table 23: Four-Input 240-A DC Power Supply LEDs

PRESENT—One

per input

input

power supply

Off

On steadilyBlueDC OK—One per

Blinking

DescriptionStateColorLED

Input is receiving voltage.On steadilyGreenINPUT

Input voltage is not present.Off

Circuit breaker is on.On steadilyGreenCB ON—One per

Circuit breaker is not turned on, or host subsystem has detected a failure and has turned the circuit breaker off.

When all four inputs are properly energized, the DC OK LED indicates that thepower supplyis functioning normally.

Either the power supply is starting up, or it is not functioning, not properly installed, or not operating properly.

g004953

Chapter 3: T640 Router Hardware Component Overview

Table 23: Four-Input 240-A DC Power Supply LEDs (continued)

DescriptionStateColorLED

On steadilyYellowOVER

TEMP—One per

power supply

Off

Documentation

T640 Four-Input 240-A DC Power Supply Overview on page 55•

• Maintaining the T640 Power Supplies on page 159

• Troubleshooting the T640 Power System on page 171

• Replacing a T640 Four-Input 240-A DC Power Supply on page 254

T640 Three-Phase Delta and Wye AC Power Supply Overview

•

Three-Phase Delta AC Power Supply Description on page 57

•

Three-Phase Wye AC Power Supply Description on page 58

•

AC Power Supply Load Sharing and Fault Tolerance on page 59

Three-Phase Delta AC Power Supply Description

Each three-phase delta AC power supply weighs approximately 31.0 lb (14.06 kg). A metal wiring compartment contains the AC terminal block and ground labeled GND. The AC terminal block consists of three input terminals labeled L1, L2, and L3, from left to right. Thepower switch providespower to the router. Each power supply’s cooling system consists of two fans, a front air filter, and a side air filter. LEDs provide the status of the power supply. Figure 32 on page 57 shows the three-phase delta AC power supply.

Power supply has exceeded recommended temperature.

Power supply is within the recommended temperature or the power supply is not on.

Figure 32: Three-Phase Delta AC Power Supply

Figure 33 on page 58 shows the three-phase delta AC power supply connections.

L1 L2 L3

g004951

L1 L2 L3

g004959

T640 Core Router Hardware Guide

Figure 33: Three-Phase Delta AC Power Supply Connections

Figure 34 on page 58 shows the three-phase delta AC power cord.

Figure 34: Three-Phase Delta AC Power Cord

Three-Phase Wye AC Power Supply Description

Each three-phase wye AC power supply weighs approximately 31.0 lb (14.06 kg). A metal wiring compartment contains the AC terminal block and ground labeled GND. The AC terminal block consists of four input terminals labeled L1, L2, L3, and N, from left to right. The power switch provides power to the router. Each power supply’s cooling system consists of two fans, a front air filter, and a side air filter. LEDs provide the status of the power supply. Figure 35 on page 59 shows the three-phase wye AC power supply.

g004953

L1 L2 L3 N

g004950

g004960

Chapter 3: T640 Router Hardware Component Overview

Figure 35: Three-Phase Wye AC Power Supply

Figure 36 on page 59 shows the three-phase wye AC power supply connections.

Figure 36: Three-Phase Wye AC Power Supply Connections

Figure 37 on page 59 shows the three-phase wye AC power cord.

Figure 37: Wye Three-Phase AC Power Cord

AC Power Supply Load Sharing and Fault Tolerance

When the router is operating normally and both power supplies are switched on, load sharing between them occurs automatically. When one power supply fails or is turned

L1 L2 L3

g004952

Power supply LEDs

ACOKDCOKOVER

TEMP

T640 Core Router Hardware Guide

off, the other power supply immediately assumes theentire electrical loadfor the system. A single power supply can provide full power for as long as the router is operational.

Documentation

T640 Power System Description on page 49•

• T640 Three-Phase Delta and Wye AC Power Supply LEDs on page 60

• Troubleshooting the T640 Power System on page 171

• T640 AC Power Requirements on page 356

• T640 AC Power Cord Specifications on page 358

T640 Three-Phase Delta and Wye AC Power Supply LEDs

Figure 38 on page 60 shows the LEDs on each three-phase delta AC power supply faceplate. The three-phase wye AC power supply has the same LEDs. The LEDs in Table 24 on page 60 indicate the status of the power supply. In addition, a power supply failure triggers the red alarm LED on the craft interface.

Figure 38: Delta AC Power Supply LEDs

Table 24: Delta AC Power Supply LEDs

power supply

On steadilyGreenAC OK—One per

Off–

On steadilyBlueDC OK—One per

Blinking

Off–

DescriptionStateColorLED

The AC terminal block is receiving voltage.

The AC terminal block is not receiving voltage.

Power supply is functioning normally.

Powersupply isstarting up, oris not functioning or operating properly, or is not properly installed.

The power supply fails or the AC terminal block is not receiving voltage.

Chapter 3: T640 Router Hardware Component Overview

Table 24: Delta AC Power Supply LEDs (continued)

DescriptionStateColorLED

TEMP—One per

power supply

Documentation

T640 Three-Phase Delta and Wye AC Power Supply Overview on page 57•

• Troubleshooting the T640 Power System on page 171

• T640 AC Power Requirements on page 356

T640 Cooling System Description

The cooling system components work together to keep all router components within the acceptable temperaturerange. Figure 39on page 61shows the airflowthrough therouter.

Figure 39: Airflow Through the Chassis

On steadilyYellowOVER

Off–

Power supply has exceeded recommended temperature.

If the DC OK and AC OK are on steadily, this LED indicates that power supply is within the recommended temperature.

The host subsystem monitors the temperature of the router components. When the router is operating normally, the fans function at lower than full speed. If a fan fails or the ambient temperature rises above a threshold, the speed of the remaining fans is automatically adjusted to keep the temperature within the acceptable range. If the ambient maximum temperature specification is exceeded and the system cannot be adequately cooled, the Routing Engine shuts down some or all of the hardware components.

T640 Core Router Hardware Guide

The cooling system consists of the following components:

•

All fan trays and filters are hot-insertable and hot-removable.

Two front fan trays—The front fan trays each contain six fans and are interchangeable. The front fan trays cool the components installed in the front card cage (the FPCs, PICs, CIP, and midplane).

Front air filter.

Rear fan tray—The rear fan tray contains eight fans or five blowers, and cools the components installed in the rear card cage (theRouting Engines, Control Boards, SCGs, and the SIBs). The rear fan tray is not interchangeable with the front trays.

Rear air filter.

Each power supply contains one fan that cools that power supply.

Documentation

Maintaining the T640 Air Filters on page 146•

• Maintaining the T640 Fan Trays on page 147

• Troubleshooting the T640 Cooling System on page 168

T640 Cable Management System Description

The cable management system (see Figure 40 on page 62) consists of a row of nine semicircular plastic bobbins mounted on the front of therouter below the FPC card cage. The PIC cables pass between the bobbins and into the tray, keeping the cables organized and securely in place. The curvature of the bobbins also helps maintain the proper bend radius for optical PIC cables.

You can pull the cable management system up and outward to lock it into the maintenance position. This allows you to access the lower fan tray and the front air filter.

Figure 40: Cable Management System

Documentation

• T640 Router Description on page 3

• T640 Chassis Description on page 13

• Removing the T640 Cable Management System on page 102

PART 2

T640 Router Initial Installation

•

Preparing for T640 Router Installation on page 65

•

T640 Router Installation Overview on page 69

•

Unpacking the T640 Router on page 71

•

Installing the T640 Router Mounting Hardware on page 77

•

Installing the T640 Router in to a Rack on page 85

•

Installing the T640 Router Using a Mechanical Lift on page 87

•

Installing the T640 Router Without a Mechanical Lift on page 95

•

Grounding the T640 Router on page 115

•

Connecting the T640 Router to External Devices on page 117

•

Providing Power to the T640 Router on page 123

•

Performing the Initial T640 Junos OS Configuration on page 139

T640 Core Router Hardware Guide

CHAPTER 4

Preparing for T640 Router Installation

•

T640 Site Preparation Checklist on page 65

•

T640 Rack Requirements on page 66

•

T640 Clearance Requirements for Airflow and Hardware Maintenance on page 68

T640 Site Preparation Checklist

The checklist in Table 25 on page 65 summarizes the tasks you need to perform when preparing a site for router installation.

Table 25: Site Preparation Checklist

DatePerformed ByFor More InformationItem or Task

Environment

Verify that environmental factors such as temperatureand humidity donot exceedrouter tolerances.

“T640 Environmental Specifications” on page 343

Power

Measure distance between external power sources and router installation site.

Locate sites for connection of system grounding.

Calculate the power consumption and requirements.

Rack

Verify that your rack meets the minimum requirements for the installation of the router.

Plan rack location, including required space clearances.

“T640 DC Power Distribution” on page 353

“T640 DC Power Cable Specifications” on page 352

“T640 Chassis Grounding Cable and Lug Specifications” on page 345

“T640 DC Power System Requirements” on page 350

“T640 Rack Requirements” on page 66

“T640 Clearance Requirements for Airflow and Hardware Maintenance” on page 68

T640 Core Router Hardware Guide

Table 25: Site Preparation Checklist (continued)

DatePerformed ByFor More InformationItem or Task

If arack isused, secure rack tofloor andbuilding structure.

Cables

Acquire cables and connectors:

•

Determine the number of cables needed based on your planned configuration.

•

Review the maximum distance allowed for each cable. Choose the length ofcable based on the distance between the hardware components being connected.

Plan the cable routing and management.

Documentation

T640 Router Installation Summary on page 69•

• Safety Requirements, Warnings, and Guidelines for Installing the T640 Router on

page 85

• T640 Chassis Lifting Guidelines on page 310

T640 Rack Requirements

“T640 Rack Requirements” on page 66

“Calculating Power Budget for Fiber-Optic Cable for M Series, MX Series, and T Series Routers” on page 363

“Calculating Power Margin for Fiber-Optic Cable for M Series, MX Series, and T Series Routers” on page 363

“Maintaining T640 PICs and PIC Cables” on page 156

The T640 Core Router can be installed in a rack or cabinet. Many types of racks are acceptable, including four-post (telco) racks and open-frame racks. An example of an open-frame rack is shown in Figure 41 on page 67.

The router isdesigned forinstallation in a 19-in. rack as defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronics Industry Association (http://www.eia.org).

With the use ofadapters, therouter is designed to fit intoa 600-mm-wide rack, asdefined in the four-part Equipment Engineering (EE); European telecommunications standard for equipment practice (document numbers ETS 300 119-1 through 119-4) published by the European Telecommunications Standards Institute (http://www.etsi.org). Use approved wing devices to narrow the opening between the rails.

The rack rails must be spaced widely enough to accommodate the router chassis's external dimensions: 37.45 in. (95.1 cm) high, 31 in.(78.7 cm)deep, and 17.43 in. (44.3 cm) wide. The outer edges of the mounting brackets extend the width to 19 in. (48.3 cm). The spacing of rails and adjacent racks must also allow for the clearances around the router and rack that are specified in “T640 Clearance Requirements for Airflow and Hardware Maintenance” on page 68.

Chapter 4: Preparing for T640 Router Installation

The chassis height of 37.45 in. (95.1 cm) is approximately 21.4 U. A U is the standard rack unit defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronics Industry Association. You can stack two routers in a rack that has at least 42.8 U (74.9 in. or 1.90 m) of usable vertical space.

The rack must be strong enough to support the weight of the fully configured router, up to approximately 565 lb (256.3 kg). If you stack two fully configured routers in one rack, it must be capable of supporting about 1130 lb (512.6 kg).

Figure 41: Typical Open-Frame Rack

Documentation

Always secure therack to thestructure ofthe building. If your geographical area issubject to earthquakes, bolt the rack to the floor. For maximum stability, also secure the rack to ceiling brackets. For more information, see “Before You Install the T640 Rack-Mounting Hardware” on page 77.

T640 Chassis Description on page 13•

• Installing the T640 Mounting Hardware for a Four-Post Rack or Cabinet on page 78

• Installing the T640 Mounting Hardware for an Open-Frame Rack on page 81

• Safety Requirements, Warnings, and Guidelines for Installing the T640 Router on

page 85

T640 Core Router Hardware Guide

T640 Clearance Requirements for Airflow and Hardware Maintenance

When planning the installation site, you need to allow sufficient clearance around the rack (see Figure 42 on page 68):

•

For the cooling system to function properly, the airflow around the chassis must be unrestricted. Figure 39 on page 61 depicts the airflow in the router.

NOTE: If you mount the router in a cabinet, be sure that ventilation is

sufficient to prevent overheating.

•

For service personnel to remove and install hardware components, there must be adequate space at the front and back of the router. At least 24 in. (61 cm) is required both in front of and behind the router. NEBS GR-63 recommends that you allow at least 30 in. (72.6 cm) in front of the rack and 24 in. (61.0 cm) behind the rack.

Figure 42: T640 Chassis Dimensions and Clearance Requirements

Documentation

• T640 Chassis Description on page 13

• T640 Cooling System Description on page 61

• Safety Requirements, Warnings, and Guidelines for Installing the T640 Router on

page 85

• T640 Physical Specifications on page 341

CHAPTER 5

T640 Router Installation Overview

•

T640 Router Installation Summary on page 69

T640 Router Installation Summary

It is important to proceed through the installation process in the following order:

1. Prepare your installation site.

See “T640 Site Preparation Checklist” on page 65.

2. Review the safety guidelines.

See “General Safety Guidelines for M Series, MX Series, and T Series Routers” on page 303.

3. Unpack the router and verify the parts received.

“Unpacking the T640 Router” on page 71.

4. Install the mounting hardware.

See “Installing the T640 Mounting Hardware for a Four-Post Rack or Cabinet” on page 78 or “Installing the T640 Mounting Hardware for an Open-Frame Rack” on page 81.

5. Install the router.

See “Mounting the T640 Chassis Using a Mechanical Lift” on page 89 or “Installing the T640 Chassis in the Rack Manually” on page 104.

6. Ground the router.

See “Connecting the T640 Grounding Cable” on page 115.

7. Connect the router to a management device.

See “Connecting the T640 Router to a Management Console or Auxiliary Device” on page 119.

8. Power on the router.

See “Powering On a DC-Powered T640 Router” on page 130.

9. Perform the initial system configuration.

See “Initially Configuring the T640 Router” on page 139.

T640 Core Router Hardware Guide

Documentation

• T640 Chassis Description on page 13

• Safety Requirements, Warnings, and Guidelines for Installing the T640 Router on

page 85

• T640 Chassis Lifting Guidelines on page 310

Juniper networks T640 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

List of Figures

List of Tables

About the Documentation

Junos OS Documentation and Release Notes

Objectives

Audience

Documentation Conventions

Documentation Feedback

Requesting Technical Support

Self-Help Online Tools and Resources

Opening a Case with JTAC

T640 Router Description

T640 Field-Replaceable Units (FRUs)

T640 Router FRU Overview

T640 FRU List

T640 Component Redundancy

T640 System Architecture Description

T640 Routing Engine Functions

T640 Packet Forwarding Engine Architecture

Data Flow Through the T640 Router

T640 Chassis Description

T640 Midplane Description

T640 Flexible PIC Concentrators (FPCs) Overview

T640 FPC Description

FPC Terminology

Identifying T640 FPCs

T640 FPCs Supported

T640 PIC Description

T640 Switch Interface Boards (SIBs) Description

T640 Host Subsystem Overview

T640 Host Subsystem Description

T640 Routing Engine Overview

T640 Routing Engine Description

T640 RE-600 Description

T640 RE-1600 Description

T640 RE-2000 Description

T640 T Series Control Boards (T-CBs) Description

T640 T Series Control Boards (T-CBs) LEDs

T640 SONET Clock Generators (SCGs) Overview

T640 Standard SONET Clock Generators (SCGs) Description

T640 SONET Clock Generators (SCGs) LEDs

T640 Craft Interface Overview

T640 Craft Interface Description

T640 Craft Interface Alarm LEDs and ACO/LT Button

T640 Craft Interface LCD and Navigation Buttons

T640 Craft Interface Host Subsystem LEDs

T640 Craft Interface SIB LEDs

T640 Craft Interface FPC LEDs and Online/Offline Buttons

T640 Connector Interface Panel (CIP) Description

T640 Routing Engine Ports

T640 Alarm Relay Contacts

T640 Power System Overview

T640 Power System Description

T640 Two-Input 160-A DC Power Supply Overview

Two-Input 160-A DC Power Supply Description

Two-Input 160-A DC Power Supply Inputs

Two-Input 160-A DC Power Supply Load Sharing and Fault Tolerance

T640 Two-Input 160-A DC Power Supply LEDs

T640 Three-Input 240-A DC Power Supply Overview

Three-Input 240-A DC Power Supply Description

Three-Input 240-A DC Power Supply Inputs

Three-Input 240-A DC Power Supply Load Sharing and Fault Tolerance

T640 Three-Input 240-A DC Power Supply LEDs

T640 Four-Input 240-A DC Power Supply Overview

Four-Input 240-A DC Power Supply Description

Four-Input 240-A DC Power Supply Inputs

Four-Input 240-A DC Power Supply Load Sharing and Fault Tolerance

T640 Four-Input 240-A DC Power Supply LEDs

T640 Three-Phase Delta and Wye AC Power Supply Overview

Three-Phase Delta AC Power Supply Description

Three-Phase Wye AC Power Supply Description

AC Power Supply Load Sharing and Fault Tolerance

T640 Three-Phase Delta and Wye AC Power Supply LEDs

T640 Cooling System Description

T640 Cable Management System Description