Juniper T640 Hardware Manual page 3

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).
2–INPUT
31 December 2008— 530-021112-01 Revision 3. Added the 3-input 240-A power supply in mode. Updated the power requirements.
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 on the title page.
YEAR 2000 NOTICE
Juniper Networks hardware and software products are Year 2000 compliant. 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.
END USER LICENSE AGREEMENT
The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with) Juniper Networks
software. Use of such software is subject to the terms and conditions of the End User License Agreement ("EULA") posted at
http://www.juniper.net/support/eula.html. By downloading, installing or using such software, you agree to the terms and conditions of
that EULA.
Copyright © 2013, Juniper Networks, Inc. iii