Juniper Networks Hardware Manual page 2

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Juniper Networks, Inc.
1194 North Mathilda Avenue
Sunnyvale, California 94089
USA
408-745-2000
www.juniper.net
This product includes 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 memory allocation software developed by Mark Moraes, copyright © 1988, 1989, 1993, University of Toronto.
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.
This product includes software developed by Maker Communications, Inc., copyright © 1996, 1997, Maker Communications, Inc.
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.
M120 Multiservice Edge Router Hardware Guide
Copyright © 2010, Juniper Networks, Inc.
All rights reserved. Printed in USA.
Writing: Sheila Nolte
Editing: Stella Hackell, Fran Mues
Illustration: Faith Bradford Brown
Cover Design: Edmonds Design
Revision History
October 2010—Corporate rebranding.
August 2010—Corporate rebranding.
January 2010—Corrected power supply terminology. Updated FPC description.
November 2009—Updated LED amber to yellow and updated power supply terminology.
October 2009—Updated product names. Revised sections into modular topics for easier customer access.
12 October 2008—530-017784-01 Revision 4. Added external clock synchronization.
29 June 2007—530-017784-01 Revision 3. Added air filter replacement recommendation. Added additional safety information and DC input
voltages. Updated the connect DC power procedure.
30 March 2007—530-017784-01 Revision 2. Updated AC plug information and added the design specification for the Italian AC power cord.
12 January 2007—530-017784-01 Revision 1. Added FEB redundancy support.
2 November 2006—530-014640-01 Revision 2. Updated FPC Type 2 throughput.
6 October 2006—530-014640-01 Revision 1. Initial Release
The information in this document is current as of the date listed in the revision history.
YEAR 2000 NOTICE
ii Copyright © 2010, Juniper Networks, Inc.