Universal Serial Bus
Cables and Connectors
Class Document
Revision 2.0
August 2007
Cables and Connectors Class Document Revision 2.0
ii August 2007
Revision History
Rev Date Filename Comments
2.0 RC 6 August 10, 2007 CabConnRC6_Aug10.doc Added Go/No-go & latch measurement for Micro series
Added Drain wire inspection process
Added pin contact visual inspection
Added clarifying text to 4-axis test description
2.0 RC5 June 5, 2007 CabConn20RC5_June5 Removed Shielding Effectiveness
Replace Rotational Continuity with 4-Axis continuity
Other miscellaneous minor changes
2.0 RC4 May, 2007 CabConn20RC4_May07 Cable Construction inspection added
2.0 April 4, 2007 CabConn20 Removed Shielding Effectiveness,
Added power line resistance test
Added cable rotation test
2.0 February 14, 2007 CabConn Rev 2.0 Edits from Tsuyoshi YAMANE of Matsushita
2.0 February 13, 2007 CabConn Rev 2.0 Edited by Jim Koser new chart from Hirose
2.0 February 7, 2007 CabConn Rev 2.0 Edited draft
2.02RC2 February 6, 2007 CabConnRC2_02-06-07 Work group editorials
2.01RC2 December 6, 2006 CabConnRC2_12-06-06 Work group editorials
2.0RC2 July 11, 2006 CabConnRC2_7-11-06 Added durability requirements for Ruggedized Standard
“A” receptacle and durability requirements for Micro
series
2.0RC2 June 7, 2006 CabConnRC2_6-7-06 Added new critical dimensions drawings for standard “A”
and “B” plugs and receptacles and changed the criteria
for “mini” products to the use of go – no go gages in
Appendix B
2.0RC2 March 24, 2006 CabConnRC2_3-23-06.doc Added new IP agreement
2.0RC2 December 03,2003 CabConnRC2.doc Final edit during USB DWG meeting in Austin prior to
posting the document to Web site
2.0RC1 October 29, 2002 CabConnRC1.doc Adjust formatting in technical edit pass
2.0RC August 13, 2002 Rewrite of test program to reflect current practice and
general updates to reflect changes in the USB
Specification.
1.1 September 1, 1999 Editorial Update for improved use. Add Appendices ‘A’
and ‘B.’
1.0 May 22, 1999 Accepted unanimously by USB-IF DWG after 30-day
posting without negative comment.
1.0RC March 27, 1999 Release for industry comment
0.9a January 19, 1999 Moved to Revision 0.9 by consensus of the Cable &
Connector Work Group. Pending final editorial cleanup
RRs to be voted on at a special Cable & Connector Work
Group meeting February 21, 1999.
0.9RC December 18, 1998 Moves Document to 0.9RC by consensus of the Cable &
Connector Group to Version 0.9 without Appendices
Drawings and Lab Listings. Special dispensation by the
DWG to move to Revision 1.0 for use at the January 1999
Plug Fest.
0.8 October 20, 1998 Release for industry comment
Revision 2.0 Cables and Connectors Class Document
August 2007 iii
0.7m October 16, 1998 Adds Addenda content
0.7f October 9. 1998 Adds additional Application Specific USB Product
Specification content.
0.7 September 30, 1998 Supersedes segments of Chapter 6 Revision 1.1 Release
Candidate 1.0c.
Please send comments via electronic mail Admin@usb.org
INTELLECTUAL PROPERTY DISCLAIMER
THIS SPECIFICATION IS PROVIDED TO YOU “AS IS” WITH NO WARRANTIES WHATSOEVER,
INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-INFRINGEMENT, OR FITNESS
FOR ANY PARTICULAR PURPOSE. THE AUTHORS OF THIS SPECIFICATION DISCLAIM ALL
LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PROPRIETARY RIGHTS,
RELATING TO USE OR IMPLEMENTATION OF INFORMATION IN THIS SPECIFICATION. THE
PROVISION OF THIS SPECIFICATION TO YOU DOES NOT PROVIDE YOU WITH ANY LICENSE,
EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY
RIGHTS.
All product names are trademarks, registered trademarks, or service marks of their respective owners.
USB Cables and Connectors Class Document
© Copyright 2007, USB Implementers Forum
All rights reserved.
Cables and Connectors Class Document Revision 2.0
iv August 2007
Contributors
Name Company E-mail Address
James R. Koser Foxconn Electronics – CCWG Chair jim.koser@foxconn.com
Tsuneki Watanabe Foxconn Electronics t.watanabe@foxconn.com
Jim Zhao Foxconn Electronics Jim.zhao@foxconn.com
George G. Olear II Contech Research – Co-Editor ggo@contechresearch.com
Jaremy Flake ATL Technology – CCWG Scribe jaremyf@atlconnect.com
Glen Chandler Acon glenc@acon.com
George Yee Acon George.Yee@acon.com
Roy Ting ELKA International Ltd. roy@elka.com.tw
Sophia Liu ETC (Electronic Test Center, Taiwan) scl@etc.org.tw
Bill Northey FCI William.northey@fciconnect.com
Jack Lu Foxlink International, Inc. Jack_lu@foxlink.com
Wen Yang Foxlink International, Inc. wen@foxlink.com
Yasuhiro Ishii Fujikura Ltd Yishii@fujikura.co.jp
Shigreu Ashida Fujikura Ltd Ashidas@fujikura.co.jp
Marksuk Piyavit Fujikura Ltd MPiyavit @fujikura.com
Hiromichi Kato Fujikura Ltd pakl@fujikura.com
Sathid Inthon Fujikura Ltd isathid @fujikura.com
Makoto Kikuchi Fujikura Ltd mkikuchi@fujikura.co.jp
Hiroshi Nakazawa Hirose Electric Co. Ltd Hiroshi Nakazawa@hirose.co.jp
Yousuke Takeuchi Hirose Electric Co. Ltd Yousuke_Takeuchi@hirose.co.jp
Shinya Tono Hirose Electric Co. Ltd Shinya_tohno@hirose.co.jp
Karl Kwiat Hirose Electric Co. Ltd kkwiat@hirose.com
Kazunori Ichikawa Hirose Electric Co. Ltd Kazunori_Ichikawa@hirose.co.jp
Toshi Sasaki Honda Connectors t.sasaki@honda-connectors.co.jp
Jim Eilers Hosiden eilersjm@hoaco.com
Tsuyoshi Kitagawa Hosiden kitagawat@hoaco.com
David Suryoutomo Japan Aviation Electronics, Inc suryoutomod@jae.com
Ron Muir Japan Aviation Electronics, Inc muirr@jae.com
Kazuhiro Saito Japan Aviation Electronics, Inc saitouk@jae.co.jp
Takahiro Deguchi JST Mfg. Co. Ltd tdeguchi@jst-mfg.com
Yasuhira Miya JST Mfg. Co. Ltd ymiya@jst-mfg.com
Revision 2.0 Cables and Connectors Class Document
August 2007 v
Yoichi Nakazawa JST Mfg. Co. Ltd ynakazawa@jst-mfg.com
Hironori Handa JST Mfg. Co. Ltd hhanda@jst-mfg.com
Vincent Chen Longwell vince@longwell.com
Ron Ward Matsushita Electronics rward@us.pewg.panasonic.com
Hitoshi Kawamura Mitsumi h_kawamura@sales.mitsumi.co.jp
Atsushi Nishio Mitsumi a_nishio@eeb.mitsumi.co.jp
Yasuhiko Shinohara Mitsumi y_shinohara@eeb.mitsumi.co.jp
Scott Sommers Molex Scott.sommers@molex.com
E. Mark Rodda Motorola PCS markrodda@motorola.com
Sheldon Singleton National Technical Systems sheldons@ntscorp.com
Sam Liu Newnex saml@newnex.com
Jan Fahllund Nokia Corporation Jan.h.fahllund@nokia.com
Kai Silvennoine Nokia Corporation Kai.silvennoine@nokia.com
Richard Petrie Nokia Corporation Richard.petrie@nokia.com
Jussi Takaneva Nokia Corporation Jussi.Takaneva@nokia.com
Panu Ylihaavisto Nokia Corporation Panu.Ylihaavisto@nokia.com
Arthur Zarnowitz Palm arthur.zarnowitz@palm.com
Dave Peters Palm dave.peters@palm.com
Tetsuji Kawaguchi Panasonic (Matsushita) t Kawaguchi@us.pewg.panasonic.com
Satoshi Yamamoto Panasonic (Matsushita) koteyamd@sei.mew.co.jp
Tsuyoshi Yamane Panasonic (Matsushita) Yamane.tsuyoshi@mail.mew.co.jp
Naoyuki Ono SMK Naoyuki@smk.co.jp
Eric Yagi SMK s-yagi@smkusa.com
Scott Shuey Tyco Electronics. scott.shuey@tycoelectronics.com
Masaru Ueno Tyco Electronics Ueno.masaru@ tycoelectronics.com
Mark Paxson USB-IF. mpaxson@vtm-inc.com
Ed Beeman 2010 Tech for USB-IF ed.beeman@2010tech.com
Cables and Connectors Class Document Revision 2.0
vi August 2007
Table of Contents
1 Introduction................................................................................................................ 1
1.1 Purpose ....................................................................................................................... 1
1.2 Scope........................................................................................................................... 1
1.3 Related Documents ..................................................................................................... 1
1.4 Terms and Abbreviations............................................................................................. 1
2 Management Overview.............................................................................................. 5
3 USB Electrical, Mechanical and Environmental Compliance Standards............. 6
4 Acceptance Criteria, Test Methods and Test Procedures................................... 10
4.1 Integrators List (IL)..................................................................................................... 10
4.2 USB Logo Usage....................................................................................................... 10
4.3 Compliance Test Report............................................................................................ 10
4.4 Connector and Cable Assembly Physical Certification ............................................. 10
4.5 General Information................................................................................................... 11
4.5.1 Mated Pairs................................................................................................................ 11
4.5.2 Before Testing ........................................................................................................... 11
4.5.3 Test Sequences......................................................................................................... 11
4.6 Sample Selection....................................................................................................... 12
4.7 USB Compliance Testing Interval.............................................................................. 12
4.8 Primary Qualification Approval Testing ..................................................................... 12
4.9 Sustaining Qualification Approval Testing................................................................. 13
4.10 Compliance Test Sequences..................................................................................... 13
4.10.1 Inspection EIA 364-18 ............................................................................................... 13
4.10.2 Test Group ‘1’ ............................................................................................................ 14
4.10.3 Test Group ‘2’ ............................................................................................................ 17
4.10.4 Test Group ‘3’ ............................................................................................................ 18
4.10.5 Test Group ‘4’ ............................................................................................................ 19
4.10.6 Test Group ‘5’ ............................................................................................................ 20
4.10.7 Test Group ‘6’ ............................................................................................................ 20
4.10.8 Test Group ‘7’ ............................................................................................................ 21
4.10.9 Test Group ‘8’ ............................................................................................................ 21
5 Certification Acceptance and Submission ........................................................... 23
5.1 Compliance Test Report............................................................................................ 23
5.2 Listing, Authorization and Notification ....................................................................... 23
5.2.1 Listing ........................................................................................................................ 23
5.2.2 Authorization to use Certified USB Logo................................................................... 23
5.2.3 Notification ................................................................................................................. 23
Appendices............................................................................................................................. 24
A Testing by Similarity – General Guidelines ............................................................... 24
B Critical Dimensions.................................................................................................... 27
Revision 2.0 Cables and Connectors Class Document
August 2007 vii
USB 2.0 Group 7 - Standard “A” PLUG ................................................................................. 27
USB 2.0 Group 7 - Standard “A” Receptacle.......................................................................... 28
USB 2.0 Group 7 - Standard “B” PLUG .................................................................................. 29
USB 2.0 Group 7 - Standard “B” RECEPTACLE.................................................................... 30
USB 2.0 Group 7 - MINI “B” PLUG ......................................................................................... 31
USB 2.0 Group 7 - MINI “B” RECEPTACLE........................................................................... 31
USB 2.0 Group 7 – Micro-USB A-Plug .................................................................................... 32
USB 2.0 Group 7 – Micro-USB B-Plug .................................................................................... 33
USB 2.0 Group 7 – Micro-USB B-Receptacle.......................................................................... 34
USB 2.0 Group 7 – Micro-USB AB-Receptacle ....................................................................... 37
C Attenuation Table....................................................................................................... 39
D 4-Axis Continuity Test................................................................................................ 40
List of Tables
Table 3-1 USB Electrical, Mechanical and Environmental Compliance Standards...................6
Table 4-1 Standard Test Conditions.............................................................................................11
Table 4-2 Performance Levels ......................................................................................................11
Table 4-3 Primary Qualification Approval Testing......................................................................12
Table 4-4 Test Group '1' Durability, Vibration, Shock, Cable Retention and Mating/Un-mating
Force 14
Table 4-5 Test Group '2' Temperature Life ..................................................................................17
Table 4-6 Test Group '3' Mixed Flowing Gas...............................................................................18
Table 4-7 Test Group '4' Insulation Resistance, Dielectric Withstanding Voltage, Thermal Shock
& Humidity Temperature Cycling ...............................................................................................19
Table 4-8 Test Group '5' Solderability..........................................................................................20
Table 4-9 Test Group '6' High Frequency Testing ......................................................................20
Table 4-10 Test Group '7' Critical Dimensions ..........................................................................21
Table 4-11 Test Group '8' Cable ..................................................................................................21
Revision 2.0 Cables and Connectors Class Document
August 2007 1
1 Introduction
1.1 Purpose
This document describes the mechanical, electrical, environmental, design and performance criteria and
voluntary supplier compliance requirements for USB connectors, cable and fabricated cable assemblies. In
addition, this document provides detailed requirements for the design, approval and implementation of
application specific USB connectors and fabricated cable assemblies.
1.2 Scope
The information provided in this document serves as a guideline for design, development and voluntary
compliance testing of USB connectors and fabricated cables assemblies, as well as defining mechanical, electrical,
environmental and performance characteristics. As such, it defines how USB connectors, cable and fabricated
cables assemblies are to be implemented and how manufacturers and/or fabricators will interact with the
voluntary compliance requirements.
1.3 Related Documents
American Society for Testing and Materials
ASTM-D-4565 Standard Test Methods for Physical and Environmental Performance Properties of
Insulations and Jackets for Telecommunications Wire and Cable. This specification
is available through the World Wide Web site http://www.astm.org/
ASTM-D-4566 Standard Test Methods for Electrical Performance Properties of Insulations and
Jackets for Telecommunications Wire and Cable. This specification is available
through the World Wide Web site http://www.astm.org/
ANSI/EIA 364-C Electrical Connector/Socket Test Procedures Including Environmental
Classifications, approved 1994. Available in hard copy – reference search site
http://www.nssn.org/information.html
Underwriters Laboratories
UL STD-94 Test procedures used to classify polymeric materials 94HB, 94V-1, 94V-2, 94-5VA,
94-5VB, 94VTM-0, 94VTM-1, 94VTM-2, 94HBF, 94HF-1, and 94HF-2. This
specification is available through the World Wide Web site http://www.comm-
2000.com/
UL Subject-444 Type CMP (plenum cable), Type CMR (riser cable), Type CM (commercial cable),
and Type CMX (cable for restricted use. This specification is available through the
World Wide Web site http://www.comm-2000.com/
[USB2.0] Universal Serial Bus Specification, revision 2.0 (also referred to as the USB
Specification). This specification is available on the World Wide Web site
http://www.usb.org.
USB On-The-Go On-The-Go Supplement to the USB 2.0 Specification (also referred to as the USB
On-The-Go Specification). This specification is available on the World Wide Web
site http://www.usb.org.
1.4 Terms and Abbreviations
Term Description
Cables and Connectors Class Document Revision 2.0
2 August 2007
Term Description
A2LA The American Association for Laboratory Accreditation
(A2LA) is a non-profit, professional membership society.
A2LA coordinates and manages a broad-spectrum,
nationwide laboratory accreditation system and offers
training and continuing education in laboratory practices and
management.
A2LA offers accreditation to private, independent (for hirer),
in-house and government testing laboratories in the following
fields: acoustics and vibration; biological; chemical;
construction materials; electrical; environmental; geotechnical;
mechanical; calibration; and, nondestructive and thermal.
ANSI American National Standards Institute
Approved Integrators List (AIL) A listing available to USB-IF member companies at
http://www.usb.org listing cable and connector products that
have successfully completed a Voluntary Compliance Testing
program conducted in accordance with the most current
version of the USB Specification’s Electrical, Mechanical and
Environmental Performance Standards as shown in Chapter 6,
Chapter 7 and this document.
ASTM American Society for Testing and Materials.
ASUPS The acronym for Application Specific USB Product
Specification. An ASUPS describes the unique characteristics
of a special purpose nonstandard USB connector or cable
assembly specification.
C of C Certificate of Compliance.
Characteristic A physical, chemical, visual or any other measurable property
of a product or material.
Contact Point One electrical contact of a multi-contact connector.
CTR Conformance Test Report
Defect Any nonconformance of the unit of product with specified
requirements.
Defective Unit A unit of product that contains one or mor