41004P1_H-1.pdf

SSP 41004, Part 1, Revision H

National Aeronautics and Space Administration International Space Station Program Johnson Space Center Houston, Texas Contract No. NAS15–10000

International Space Station Program

Revision H October 25, 2005

Common Berthing Mechanism to Pressurized Elements Interface Control Document Part 1

SSP 41004, Part 1 Revision H

October 25, 2005 ii

REVISION AND HISTORY PAGE

REV. DESCRIPTION PUB.

DATE

– BASELINE ISSUE (REFERENCE SSCBD BB003287 EFF. 02–25–92) 02–92

IRNs 0001 – 0035 (REFERENCE SSCBD BB003287A EFF. 04–03–92) 04–92

IRN 0036 (REFERENCE SSCBD BB003287B EFF. 07–16–92) 07–92

A REVISION A (REFERENCE IRN 0037, SSCBD BB003287B EFF. 07–16–92) 07–92

IRN 0038 (REFERENCE SSCBD BB003287C EFF. 11–13–92) 12–92

IRNs 0040 – 0046 (REFERENCE SSCBD BB003287C EFF. 11–13–92) 12–92

IRN 0048 (REFERENCE SSCBD BB003287C EFF. 11–13–92) 12–92

IRN 0049 (REFERENCE SSCBD BB003287D EFF. 12–18–92) 01–93

B REVISION B (REFERENCE IRN 0050, SSCBD BB003287D EFF. 12–18–92) 01–93

C REVISION C (REFERENCE SSCBD 000008, EFF. 3–23–94) 03–94

IRN 000067 (REFERENCE SSCD 000067 EFF. 10–11–94) 02–25–97

IRN 000145 (REFERENCE SSCD 000145 EFF. 10–31–95) (Release to File) 03–02–99

IRN 000061 (REFERENCE SSCD 000061 EFF. 12–19–95) (Release to File) 03–02–99

IRN 000179 (REFERENCE SSCD 000179, EFF. 04–26–96) (Release to File) 03–02–99

D REVISION D (REFERENCE SSCD 000428, EFF. 03–28–97) 04–01–97

IRN 000604 (REFERENCE SSCD 000604, EFF. 01–17–97) (Release to File) 03–02–99

INCORPORATES THE FOLLOWING PIRNS:

41004–NA–0026, NA–0027, NA–0028, NA–0029, NA–0030

E REVISION E (REFERENCE SSCD 000838, EFF. 04–14–98) (Release to File) 03–02–99

INCORPORATES THE FOLLOWING PIRNS:

41004–NA–0025, 41004–NA–0031, 41004–NA–0032B

F REVISION F (REFERENCE SSCD 001164, EFF. 08–11–98) 03–02–99

INCORPORATES THE FOLLOWING PIRNS:

41004–AS–0012A, 41004–AS–0014A, 41004–NA–0035, 41004–NA–0036A

October 25, 2005 iii

REVISION AND HISTORY PAGE

REV. DESCRIPTION PUB.

DATE

G REVISION G (REFERENCE SSCD 002448, EFF. 06–30–99 ) 07–14–99

Incorporate the following approved PIRNs which were created by the applicable Changes listed below:

SSCN 002448 – PIRNs 41004–AS–0013C, 41004–NA–0042

SSCN 001555 – PIRN 41004–NA–0041A

SSCN 001481 – PIRNs 41004–NA–0040A

SSCN 001594 – PIRN 41004–NA–0038A

SSCN 001465 – PIRN 41004–NA–0037B

H REVISION H (REFERENCE SSCD 009719, EFF. 06–07–06 ) 01–10–07

Incorporate the following approved PIRNs which were created by the applicable Changes listed below:

PIRN 41004–ES–0016 IRN N/A SSCN 009719

Rev D also closed SSCN 000554.

Rev G also closed SSCNs 000600, and 0000721.

The following changes were evaluated and were determined to be of no impact:

PIRN NA IRN N/A SSCN 000780

PIRN NA IRN N/A SSCN 001386

PIRN N/A IRN 0006 SSCN 001938

PIRN N/A IRN 0009 SSCN 003488

Rev H incorporates the following SSCN’s:

PIRN N/A IRN 0001 SSCN 001662

PIRN N/A IRN 0007 SSCN 002135

PIRN N/A IRN 0010 SSCN 002877

PIRN N/A IRN 0008 SSCN 002915

PIRN N/A IRN 0009 SSCN 003384

ERU: /s/ J. Rivas 01–10–07

October 25, 2005 iv

INTERNATIONAL SPACE STATION PROGRAM

COMMON BERTHING MECHANISM TO PRESSURIZED ELEMENTS

INTERFACE CONTROL DOCUMENT

PART 1

OCTOBER 25, 2005

Warren England BHOU

PREPARED BY: PRINT NAME ORGN

/s/ Warren England 4/10/06

SIGNATURE DATE

CHECKED BY: Quentin Henry BHOU

PRINT NAME ORGN

/s/ Quentin L. Henry 4/11/06

SIGNATURE DATE

APPROVED BY (NASA): Chau Hong OB/NASA

PRINT NAME ORGN

/s/ Chau Hong 4/4/06

SIGNATURE DATE

DQA: Merry McClain BHOU

PRINT NAME ORGN

/s/ Merry McClain 4/12/06

SIGNATURE DATE

October 25, 2005 v

Node 2 Project ConcurrenceÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁAlenia

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ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ/s/Andrea Lorenzoni

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ1/7/98

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁAndrea Lorenzoni

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁDate

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁNASA–MSFC

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ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁDate

October 25, 2005 vi

PREFACE

SSP 41004, Common Berthing Mechanism to Pressurized Elements Interface Control Document (ICD) shall be implemented on all new Program contractual and internal activity and shall be included in any existing contracts through contract changes. This document is under the control of the Space Station Control Board (SSCB); any changes or revisions will be approved by the

SSCB.

October 25, 2005 vii

INTERNATIONAL SPACE STATION PROGRAM

COMMON BERTHING MECHANISM TO PRESSURIZED ELEMENTS

INTERFACE CONTROL DOCUMENT

PART 1

LIST OF CHANGES

OCTOBER 25, 2005

(SHEET 1 OF 1)

All changes to paragraphs, tables, and figures in this document are shown below:

SSCBD ENTRY DATE CHANGE PARAGRAPH(S)

001662 N/A 2.1

002135 N/A 2.1

002915 N/A 2.1

003384 N/A 2.1

009719 ES–0016 3B.2.2.4.2.1

009719 N/A 2.1

TABLE OF CONTENTS

PARAGRAPH PAGE

viii

1.0 INTRODUCTION 1 – 1

1.1 PURPOSE 1 – 1

1.2 SCOPE 1 – 1

1.3 PRECEDENCE 1 – 1

1.4 DELEGATION OF AUTHORITY 1 – 1

1.5 RESPONSIBILITY AND CHANGE AUTHORITY 1 – 1

2.0 DOCUMENTS 2 – 1

2.1 APPLICABLE DOCUMENTS 2 – 1

2.2 REFERENCE DOCUMENTS 2 – 4

3A.0 ACTIVE COMMON BERTHING MECHANISM TO PRESSURIZED ELEMENTS

INTERFACES 3A – 1

3A.1 GENERAL 3A – 1

3A.1.1 INTERFACE DESCRIPTION 3A – 1

3A.1.1.1 ACTIVE COMMON BERTHING MECHANISM DESCRIPTION 3A – 1

3A.1.1.2 PRESSURIZED ELEMENT DESCRIPTION 3A – 1

3A.1.1.3 INTERFACE PLANE DESCRIPTION 3A – 1

3A.1.1.4 COORDINATE SYSTEM 3A – 1

3A.1.1.5 ENGINEERING UNITS AND TOLERANCES 3A – 1

3A.1.1.5.1 TOLERANCE 3A – 1

3A.1.1.6 ACTIVE COMMON BERTHING MECHANISM INTERFACE FUNCTIONS 3A – 4

3A.1.1.7 PRESSURIZED ELEMENT INTERFACE FUNCTIONS 3A – 4

3A.1.2 INTERFACE RESPONSIBILITIES 3A – 4

3A.1.2.1 RESPONSIBILITY FOR THE ACTIVE COMMON BERTHING MECHANISM 3A – 4

3A.1.2.2 RESPONSIBILITY FOR PRESSURIZED ELEMENT 3A – 4

3A.1.2.2.1 RESPONSIBILITY FOR LABORATORY ELEMENT (USL) 3A – 4

3A.1.2.2.2 RESPONSIBILITY FOR HABITATION ELEMENT (HAB) 3A – 4

3A.1.2.2.3 RESPONSIBILITY FOR NODE 3A – 5

3A.1.2.2.4 DELETED 3A – 5

3A.1.2.3 RESPONSIBILITY FOR UTILITY CONNECTORS 3A – 5

3A.2 INTERFACE REQUIREMENTS 3A – 5

3A.2.1 ACTIVE COMMON BERTHING MECHANISM INTERFACE REQUIREMENTS 3A – 5

3A.2.1.1 ENVELOPE REQUIREMENTS 3A – 5

3A.2.1.1.1 ENVELOPE 3A – 5

3A.2.1.1.1.1 STAYOUT ZONE FOR ACBM M/D DEPLOYABLE MECHANISM BELOW

XCBM =0 (RADIAL PORT ONLY) 3A – 5

October 25, 2005 ix

TABLE OF CONTENTS

PARAGRAPH PAGE

3A.2.1.1.2 RESERVED VOLUMES 3A – 6

3A.2.1.1.2.1 ACTIVE COMMON BERTHING MECHANISM HARDWARE 3A – 6

3A.2.1.2 MASS PROPERTIES 3A – 7

3A.2.1.2.1 CENTER OF MASS 3A – 7

3A.2.1.2.2 DELETED 3A – 10

3A.2.1.2.3 MASS LIMITATIONS 3A – 10

3A.2.1.3 STRUCTURAL/MECHANICAL ATTACHMENT 3A – 10

3A.2.1.3.1 DELETED 3A – 10

3A.2.1.3.2 INTERCONNECTING UTILITY HARDWARE 3A – 10

3A.2.1.3.2.1 ACCESSIBILITY 3A – 10

3A.2.1.3.2.2 REDUNDANCY 3A – 10

3A.2.1.3.2.3 ELECTRICAL CONNECTORS 3A – 10

3A.2.1.3.2.4 UTILITY CABLE SPECIFICATIONS 3A – 10

3A.2.1.3.2.4.1 COMMAND/CONTROL DATA BUS CABLE SPECIFICATIONS 3A – 10

3A.2.1.3.2.4.2 POWER CABLE SPECIFICATIONS 3A – 11

3A.2.1.3.3 VESTIBULE CLEARANCES 3A – 11

3A.2.1.3.3.1 UTILITY JUMPER ENVELOPE 3A – 11

3A.2.1.3.4 ATMOSPHERIC CONTAINMENT 3A – 11

3A.2.1.3.4.1 DELETED 3A – 11

3A.2.1.4 ELECTRICAL INTERFACES 3A – 11

3A.2.1.4.1 CURRENT RATING 3A – 11

3A.2.1.4.1.1 POWER QUALITY 3A – 11

3A.2.1.5 ELECTRONIC INTERFACES 3A – 11

3A.2.1.5.1 COMMAND/CONTROL DATA BUS 3A – 11

3A.2.1.5.1.1 DATA BUS FORMAT/STANDARD 3A – 11

3A.2.1.5.1.2 DATA BUS SIGNAL CHARACTERISTICS 3A – 11

3A.2.1.5.1.3 DATA BUS CONNECTIVITY 3A – 12

3A.2.1.5.1.3.1 DATA BUS COUPLING 3A – 12

3A.2.1.5.1.3.2 DATA BUS INTERFACE IMPEDANCES 3A – 12

3A.2.1.5.1.4 TERMINAL OPERATIONS 3A – 12

3A.2.1.5.1.5 DATA BUS INTERFACE FUNCTIONS 3A – 12

3A.2.1.5.1.6 DATA BUS SERVICE AVAILABILITY 3A – 12

3A.2.1.6 SOFTWARE INTERFACES 3A – 12

3A.2.1.7 ENVIRONMENTS 3A – 12

October 25, 2005 x

TABLE OF CONTENTS

PARAGRAPH PAGE

3A.2.1.7.1 ELECTROMAGNETIC EFFECTS 3A – 12

3A.2.1.7.1.1 ELECTROMAGNETIC COMPATIBILITY 3A – 12

3A.2.1.7.1.2 ELECTROMAGNETIC INTERFERENCE 3A – 13

3A.2.1.7.1.3 GROUNDING 3A – 13

3A.2.1.7.1.4 BONDING 3A – 13

3A.2.1.7.1.5 CABLE AND WIRE DESIGN 3A – 13

3A.2.1.7.1.6 ELECTROSTATIC DISCHARGE 3A – 13

3A.2.1.7.1.7 CORONA 3A – 13

3A.2.1.7.2 STRUCTURAL LOADS 3A – 13

3A.2.1.7.2.1 BERTHING AND ON ORBIT 3A – 13

3A.2.1.7.2.2 LAUNCH AND LANDING 3A – 15

3A.2.1.7.3 VIBROACOUSTICS 3A – 16

3A.2.1.8 THERMAL 3A – 17

3A.2.1.9 DEPRESSURIZATION 3A – 17

3A.2.1.10 REPRESSURIZATION 3A – 17

3A.2.2 PRESSURIZED ELEMENT INTERFACE REQUIREMENTS 3A – 18

3A.2.2.1 ENVELOPE REQUIREMENTS 3A – 18

3A.2.2.1.1 ENVELOPE 3A – 18

3A.2.2.1.2 RESERVED VOLUMES 3A – 18

3A.2.2.1.2.1 ACTIVE COMMON BERTHING MECHANISM HARDWARE 3A – 18

3A.2.2.2 MASS PROPERTIES 3A – 18

3A.2.2.3 STRUCTURAL/MECHANICAL ATTACHMENT 3A – 18

3A.2.2.3.1 DELETED 3A – 18

3A.2.2.3.2 INTERCONNECTING UTILITY HARDWARE 3A – 18

3A.2.2.3.2.1 ACCESSIBILITY 3A – 18

3A.2.2.3.2.2 REDUNDANCY 3A – 18

3A.2.2.3.2.3 ELECTRICAL CONNECTORS 3A – 18

3A.2.2.3.2.4 UTILITY CABLE SPECIFICATIONS 3A – 19

3A.2.2.3.2.4.1 COMMAND/CONTROL DATA BUS CABLE SPECIFICATIONS 3A – 19

3A.2.2.3.2.4.2 POWER CABLE SPECIFICATIONS 3A – 19

3A.2.2.3.3 VESTIBULE CLEARANCES 3A – 19

3A.2.2.3.3.1 UTILITY JUMPER ENVELOPE 3A – 19

3A.2.2.3.4 ATMOSPHERIC CONTAINMENT 3A – 19

3A.2.2.4 ELECTRICAL INTERFACES 3A – 19

October 25, 2005 xi

TABLE OF CONTENTS

PARAGRAPH PAGE

3A.2.2.4.1 SUPPLY POWER 3A – 19

3A.2.2.4.1.1 POWER QUALITY 3A – 19

3A.2.2.4.1.2 POWER CONTROL 3A – 19

3A.2.2.4.1.2.1 OVER–VOLTAGE/OVER–CURRENT PROTECTION 3A – 19

3A.2.2.5 ELECTRONIC INTERFACES 3A – 19

3A.2.2.5.1 COMMAND/CONTROL DATA BUS 3A – 19

3A.2.2.5.1.1 DATA BUS FORMAT/STANDARD 3A – 20

3A.2.2.5.1.2 DATA BUS SIGNAL CHARACTERISTICS 3A – 20

3A.2.2.5.1.3 DATA BUS CONNECTIVITY 3A – 20

3A.2.2.5.1.3.1 DATA BUS COUPLING 3A – 20

3A.2.2.5.1.3.2 DATA BUS INTERFACE IMPEDANCES 3A – 20

3A.2.2.5.1.4 TERMINAL OPERATIONS 3A – 20

3A.2.2.5.1.5 DATA BUS INTERFACE FUNCTIONS 3A – 20

3A.2.2.5.1.6 DATA BUS SERVICE AVAILABILITY 3A – 20

3A.2.2.6 SOFTWARE INTERFACES 3A – 20

3A.2.2.7 ENVIRONMENTS 3A – 21

3A.2.2.7.1 ELECTROMAGNETIC EFFECTS 3A – 21

3A.2.2.7.1.1 ELECTROMAGNETIC COMPATIBILITY 3A – 21

3A.2.2.7.1.2 ELECTROMAGNETIC INTERFERENCE 3A – 21

3A.2.2.7.1.3 GROUNDING 3A – 21

3A.2.2.7.1.4 BONDING 3A – 21

3A.2.2.7.1.5 CABLE AND WIRE DESIGN 3A – 21

3A.2.2.7.1.6 ELECTROSTATIC DISCHARGE 3A – 21

3A.2.2.7.1.7 CORONA 3A – 21

3A.2.2.7.2 STRUCTURAL LOADS 3A – 21

3A.2.2.7.2.1 BERTHING AND ON ORBIT 3A – 21

3A.2.2.7.2.2 LAUNCH AND LANDING 3A – 22

3A.2.2.7.3 VIBROACOUSTICS 3A – 22

3A.2.2.8 THERMAL 3A – 22

3A.2.2.9 DEPRESSURIZATION 3A – 22

3A.2.2.10 REPRESSURIZATION 3A – 22

3B.0 PASSIVE COMMON BERTHING MECHANISM TO PRESSURIZED ELEMENT

INTERFACES 3B – 1

3B.1 GENERAL 3B – 1

October 25, 2005 xii

TABLE OF CONTENTS

PARAGRAPH PAGE

3B.1.1 INTERFACE DESCRIPTION 3B – 1

3B.1.1.1 PASSIVE COMMON BERTHING MECHANISM DESCRIPTION 3B – 1

3B.1.1.2 PRESSURIZED ELEMENT DESCRIPTION 3B – 1

3B.1.1.3 INTERFACE PLANE DESCRIPTION 3B – 1

3B.1.1.4 COORDINATE SYSTEM 3B – 1

3B.1.1.5 ENGINEERING UNITS AND TOLERANCES 3B – 1

3B.1.1.5.1 TOLERANCE 3B – 3

3B.1.1.6 PASSIVE COMMON BERTHING MECHANISM INTERFACE FUNCTIONS 3B – 3

3B.1.1.7 PRESSURIZED ELEMENT INTERFACE FUNCTIONS 3B – 3

3B.1.2 INTERFACE RESPONSIBILITIES 3B – 3

3B.1.2.1 RESPONSIBILITY FOR THE PASSIVE COMMON BERTHING MECHANISM 3B – 3

3B.1.2.2 RESPONSIBILITY FOR PRESSURIZED ELEMENT 3B – 3

3B.1.2.2.1 RESPONSIBILITY FOR LABORATORY ELEMENT 3B – 3

3B.1.2.2.1.1 RESPONSIBILITY FOR HABITATION ELEMENT 3B – 3

3B.1.2.2.1.2 RESPONSIBILITY FOR NODE 3B – 3

3B.1.2.2.1.3 RESPONSIBILITY FOR CUPOLA 3B – 3

3B.1.2.2.1.4 DELETED 3B – 4

3B.1.2.2.1.5 DELETED 3B – 4

3B.1.2.2.1.6 RESPONSIBILITY FOR PRESSURIZED MATING ADAPTER 3B – 4

3B.1.2.2.1.7 DELETED 3B – 4

3B.1.2.2.1.8 RESPONSIBILITY FOR Z1 INTEGRATED TRUSS SEGMENT (Z1) 3B – 4

3B.2 INTERFACE REQUIREMENTS 3B – 4

3B.2.1 PASSIVE COMMON BERTHING MECHANISM INTERFACE REQUIREMENTS 3B – 4. . .

3B.2.1.1 ENVELOPE REQUIREMENTS 3B – 4

3B.2.1.1.1 ENVELOPE 3B – 4

3B.2.1.1.2 RESERVED VOLUMES 3B – 6

3B.2.1.1.2.1 PASSIVE COMMON BERTHING MECHANISM HARDWARE 3B – 6

3B.2.1.2 MASS PROPERTIES 3B – 6

3B.2.1.2.1 CENTER OF MASS 3B – 6

3B.2.1.2.2 DELETED 3B – 6

3B.2.1.2.3 MASS LIMITATIONS 3B – 6

3B.2.1.2.4 MASS LIMITATIONS FOR NODE 1, PMA1, AND PMA 2 3B – 6

3B.2.1.3 STRUCTURAL/MECHANICAL ATTACHMENT 3B – 6

3B.2.1.3.1 DELETED 3B – 6

October 25, 2005 xiii

TABLE OF CONTENTS

PARAGRAPH PAGE

3B.2.1.3.2 DELETED 3B – 6

3B.2.1.3.3 VESTIBULE CLEARANCES 3B – 6

3B.2.1.3.3.1 UTILITY JUMPER ENVELOPE 3B – 6

3B.2.1.3.4 ATMOSPHERIC CONTAINMENT 3B – 6

3B.2.1.4 ENVIRONMENTS 3B – 7

3B.2.1.4.1 ELECTROMAGNETIC EFFECTS 3B – 7

3B.2.1.4.1.1 GROUNDING 3B – 7

3B.2.1.4.1.2 BONDING 3B – 7

3B.2.1.4.2 STRUCTURAL LOADS 3B – 7

3B.2.1.4.2.1 BERTHING AND ON ORBIT 3B – 7

3B.2.1.4.2.2 LAUNCH AND LANDING 3B – 7

3B.2.1.4.3 VIBROACOUSTICS 3B – 7

3B.2.1.5 THERMAL 3B – 10

3B.2.1.6 DEPRESSURIZATION 3B – 10

3B.2.1.7 REPRESSURIZATION 3B – 10

3B.2.2 PRESSURIZED ELEMENT INTERFACE REQUIREMENTS 3B – 10

3B.2.2.1 ENVELOPE REQUIREMENTS 3B – 10

3B.2.2.1.1 ENVELOPE 3B – 10

3B.2.2.1.2 RESERVED VOLUMES 3B – 10

3B.2.2.1.3 PASSIVE COMMON BERTHING MECHANISM HARDWARE 3B – 10

3B.2.2.2 MASS PROPERTIES 3B – 10

3B.2.2.3 STRUCTURAL/MECHANICAL ATTACHMENT 3B – 10

3B.2.2.3.1 DELETED 3B – 10

3B.2.2.3.2 DELETED 3B – 10

3B.2.2.3.3 VESTIBULE CLEARANCES 3B – 10

3B.2.2.3.3.1 UTILITY JUMPER ENVELOPE 3B – 10

3B.2.2.3.4 ATMOSPHERIC CONTAINMENT 3B – 11

3B.2.2.4 ENVIRONMENTS 3B – 11

3B.2.2.4.1 ELECTROMAGNETIC EFFECTS 3B – 11

3B.2.2.4.1.1 GROUNDING 3B – 11

3B.2.2.4.1.2 BONDING 3B – 11

3B.2.2.4.2 STRUCTURAL LOADS 3B – 11

3B.2.2.4.2.1 BERTHING AND ON ORBIT 3B – 11

3B.2.2.4.2.2 LAUNCH AND LANDING 3B – 11

October 25, 2005 xiv

TABLE OF CONTENTS

PARAGRAPH PAGE

3B.2.2.4.3 VIBROACOUSTICS 3B – 11

3B.2.2.5 THERMAL 3B – 11

3B.2.2.6 DEPRESSURIZATION 3B – 12

3B.2.2.7 REPRESSURIZATION 3B – 12

APPENDIX

A ABBREVIATIONS AND ACRONYMS A – 1

B INDEX OF TBDS/TBRS/TBCS B –1

October 25, 2005 xv

TABLE OF CONTENTS

TABLE PAGE

3A.1.1.5.1–1 LINEAR TOLERANCES 3A –4

3A.2.1.7.2.1–1 ELEMENT TO ELEMENT ICDS 3A–15

3A.2.1.7.2.2–1 ACBM LIFTOFF AND LANDING ACCELERATION ENVIRONMENT 3A – 16. .

3A.2.1.7.2.2–2 ELEMENT TO ELEMENT INTERFACE CONTROL DOCUMENTS FOR

INTERFACES LAUNCHED MATED 3A – 16

3A.2.1.7.3–1 ACTIVE COMMON BERTHING MECHANISM TO PRESSURIZED ELEMENTS

LAUNCH VIBROACOUSTICS 3A – 17

3B.2.1.4.2.2–1 PCBM LIFTOFF AND LANDING ACCELERATION

ENVIRONMENT 3B – 9

3B.2.1.4.3–1 PASSIVE COMMON BERTHING MECHANISM TO PRESSURIZED

ELEMENTS LAUNCH VIBROACOUSTICS 3B – 9

October 25, 2005 xvi

TABLE OF CONTENTS

Figure PAGE

3A.1.1–1 ACTIVE COMMON BERTHING MECHANISM TO PRESSURIZED

ELEMENT FUNCTIONAL INTERFACE DIAGRAM 3A – 2

3A.1.1.4–1 ACTIVE COMMON BERTHING MECHANISM COORDINATE

SYSTEM 3A – 3

3A.2.1.1.1–1 ACTIVE COMMON BERTHING MECHANISM ENVELOPE 3A – 8

3A.2.1.1.1–1 ACTIVE COMMON BERTHING MECHANISM ENVELOPE 3A – 8

3A.2.1.2.1–1 MOTOR CONTROLLER ASSEMBLY CENTER OF GRAVITY 3A – 9

3A.2.1.7.2.1–1 LOAD TRANSFORMATION DIAGRAM 3A – 14

3A.2.1.7.2.2–1 SPACE SHUTTLE REFERENCE DIRECTIONS 3A – 16

3B.1.1.4–1 PASSIVE COMMON BERTHING MECHANISM COORDINATE

SYSTEM 3B – 2

3B.2.1.1.1–1 PASSIVE COMMON BERTHING MECHANISM ENVELOPE 3B – 5

3B.2.1.4.2.1–1 LOAD TRANSFORMATION DIAGRAM 3B – 8

October 25, 2005

1 – 1

1.0 INTRODUCTION

The Space Station Common Berthing Mechanism (CBM) will be used on the Agenzia Spaziale Italiana (ASI) pressurized element, European Space Agency (ESA) pressurized element, the Japan Aerospace Exploration Agency (JAXA) pressurized elements, and the National Aeronautics and Space Administration (NASA) pressurized elements including the Z1 Integrated Truss Segment, all of which are hereinafter referred to simply as PEs.

There are two types of CBMs used on the Space Station. These are referred to as the Active Common Berthing Mechanism (ACBM) and the Passive Common Berthing Mechanism (PCBM). Section 3A paragraphs are applicable to the ACBM only unless referenced by a PCBM paragraph. Section 3B paragraphs are applicable to the PCBM only. ‘CBM’ will be used to refer to either the ACBM or the PCBM, interchangeably.

1.1 PURPOSE

The purpose of this document is to provide definition of the structural/mechanical, electrical, and data interface functional requirements between the CBM and the PEs. The CBM provides a means of structural attachment and pressurized crew transfer between PEs when berthed.

1.2 SCOPE

The scope of this document is limited to interfaces between the CBM and the PE.

1.3 PRECEDENCE

In the event of conflict between SSP 41162, Segment Specification for the U.S. On–orbit Segment, and the contents of this ICD, the requirements of SSP 41162 shall take precedence.

1.4 DELEGATION OF AUTHORITY

The Prime Contractor shall delegate the responsibility for preparation and maintenance of this

ICD.

1.5 RESPONSIBILITY AND CHANGE AUTHORITY

This document is prepared and maintained in accordance with SSP 30459, NASA Space Station Interface Control Plan.

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This Page Intentionally Left Blank

October 25, 2005

2 – 1

2.0 DOCUMENTS

The following documents of the exact issue shown form a part of this document to the extent specified herein.

2.1 APPLICABLE DOCUMENTS

DOCUMENT NO. TITLE

ASTM E380 Standard Practice for Use of the International System of Rev A Units (SI) (the Modernized Metric System) 1 Jan 93 References 3A.1.1.5.1, 3B.1.1.5.1

MIL–STD–1553 Digital Time Division Command/Response Mulitplexer Revision B Data Bus Notice 2 8 Sep 86 References 3A.2.1.5.1.1, 3A.2.1.5.1.2, 3A.2.1.5.1.3.1, 3A.2.1.5.1.3.2, 3A.2.1.5.1.4, 3A.2.1.5.1.5, 3A.2.2.3.2.4.1, 3A.2.2.5.1.1, 3A.2.2.5.1.2, 3A.2.2.5.1.3.1, 3A.2.2.5.1.3.2, 3A.2.2.5.1.4, 3A.2.2.5.1.5

SSP 30240 Space Station Grounding Requirements Rev C 30 Sep 98 References 3A.2.1.7.1.3, 3A.2.2.7.1.3, 3B.2.1.4.1.1, 3B.2.2.4.1.1

SSP 30242 Space Station Cable/Wire Design and Control Rev E Requirements for Electromagnetic Compatibility 30 Sep 98 References 3A.2.1.7.1.5, 3A.2.2.7.1.5

SSP 30243 Space Systems Requirements for Electromagnetic Rev E Compatibility 9 Jun 98

DCN 003, 004

References 3A.2.1.7.1.1, 3A.2.1.7.1.6, 3A.2.1.7.1.7, 3A.2.2.7.1.1, 3A.2.2.7.1.6, 3A.2.2.7.1.7

SSP 30245 Space Station Electrical Bonding Requirements Rev D 4 Jun 98 DCN 004, 005 and 006 References 3A.2.1.7.1.4, 3A.2.2.7.1.4, 3B.2.1.4.1.2, 3B.2.2.4.1.2

SSP 30482 Electrical Power Specifications and Standards, Volume 1:

Volume I EPS Electrical Performance Specifications Rev C, DCN 003, SSCN 2915 7 July 97 References 3A.2.1.7.1.2, 3A.2.2.4.1.1, 3A.2.2.7.1.2

October 25, 2005

2 – 2

DOCUMENT NO. TITLE

SSP 30482 Electrical Power Specification and Standard Volume II Rev A 1 Jan 94 DCNs 001, 002, 003, 004, and SSCNs 2135 and 2915 References 3A.2.1.4.1.1

SSP 41140 Node Element 1 to U.S. Habitation Element ICD References Table 3A.2.1.7.2.1–1

SSP 41141 Node Element 1 to U.S. Laboratory Element ICD References Table 3A.2.1.7.2.1–1

SSP 41142 Node Element 1 to Cupola Element ICD References Table 3A.2.1.7.2.1–1, Table 3A.2.1.7.2.2–2

SSP 41143 Node Element 2 to U.S. Laboratory Element ICD References Table 3A.2.1.7.2.1–1

SSP 41145 Node Element 1 to Airlock Element ICD References Table 3A.2.1.7.2.1–1

SSP 41150 Interface Requirements Document, Space Station Manned Base (SSMB) to Columbus Attached Pressurized Module (APM)

References Table 3A.2.1.7.2.1–1

SSP 41151 Interface Requirements Document,Space Station Manned Base to Japanese Experiment Module

References 3B.2.1.4.2.1, 3B.2.2.4.2.1, 3A.2.1.6, 3A.2.2.6

SSP 41175–02 Space Station Management and Control to ISS Software Book 2 Interface Control Document References Paragraph 3.A.2.2.6

SSP 41178–27 Software Interface Control Document Part 1 Internal Rev B Multiplexer/Demultiplexer to International Space Station 01 April, 2000 Book 27, Common Berthing Mechanism Interface References Paragraph 3.A.2.2.6

SSP 42007 United States On–Orbit Segment to Mini Pressurized Logistics Module Interface Control Document, Part 1

References Table 3A.2.1.7.2.1–1

SSP 42097 Space Station Program Pressurized Mating Adapter 2 & 3 to U.S. Pressurized Elements Core (Node 2 to PMA) Interface Control Document, Part 1

References Table 3A.2.1.7.2.1–1, Table 3A.2.1.7.2.2–2

SSP 42122 Node Element 1 to Pressurized Docking Module References Table 3A.2.1.7.2.1–1, Table 3A.2.1.7.2.2–2

SSP 44030 Integrated Truss Segment Z1 to Node 1 ICD References Table 3A.2.1.7.2.1–1

October 25, 2005

2 – 3

DOCUMENT NO. TITLE

SSP 50005 International Space Station Flight Crew Standard Rev B 9 Aug 95

DCN 001, 002, 003, 004, 005

and 006 References 3A.2.1.3.2, 3A.2.1.3.2.1, 3A.2.2.3.2, 3A.2.2.3.2.1

SSP 50023 Thermal Control Plan Rev Basic 15 Apr 94 References 3A.2.1.8, 3A.2.2.8, 3B.2.1.5, 3B.2.2.5

SSQ 21635 General Specification for Connectors and Accessories, Rev H Electrical, Circular, Miniature, IVA/EVA/Robot 1 Aug 97 Compatible, Space Quality

DCN 001, 011, 012, 013, 014

and 015 References 3A.2.1.3.2.3, 3A.2.2.3.2.3

SSQ 21655 General Specification for Cable, Electrical, Rev E MIL–STD–1553B Data Bus, Space Quality 15 Jul 98 References 3A.2.1.3.2.4.1, 3A.2.2.3.2.4.1

SSQ 21656 General Specification for Wire and Cable, Electric, Rev C Fluoropolymer–insulated, Nickel Coated Copper or 25 Apr 96 Copper Alloy DCN 001 and 002 References 3A.2.1.3.2.4.2, 3A.2.2.3.2.4.2

October 25, 2005

2 – 4

2.2 REFERENCE DOCUMENTS

DOCUMENT NO. TITLE

SSP 30459 NASA Space Station Interface Control Plan Rev F 23 Mar 94 References 1.5

SSP 41162 USOS Segment Specification References 1.3

SSP 41175 Station Management and Control to ISSA ICD References 3A.2.1.6

October 25, 2005

3A – 1

3A.0 ACTIVE COMMON BERTHING MECHANISM TO PRESSURIZED ELEMENTS

INTERFACES

3A.1 GENERAL

This section defines the functional interface requirements between the ACBM and the PEs.

3A.1.1 INTERFACE DESCRIPTION

The ACBM to PE interface consists of structural/mechanical and utility interfaces. A functional interface diagram is shown in Figure 3A.1.1–1, Active Common Berthing Mechanism to Pressurized Element Functional Interface Diagram.

3A.1.1.1 ACTIVE COMMON BERTHING MECHANISM DESCRIPTION

The ACBM is a mechanism, which serves as part of a common PE to PE interface. The ACBM contains the active components necessary to accomplish the PE to PE berthing operation.

3A.1.1.2 PRESSURIZED ELEMENT DESCRIPTION

The PE is any element that utilizes the ACBM for on–orbit berthing to another element.

3A.1.1.3 INTERFACE PLANE DESCRIPTION

The ACBM to PE interface plane lies at the PE bulkhead. The structural/mechanical interface plane is defined at the XCBM=0 plane for the ACBM and at the bulkhead feedthroughs for the ACBM utilities.

3A.1.1.4 COORDINATE SYSTEM

The ACBM coordinate system is shown in Figure 3A.1.1.4–1, Active Common Berthing Mechanism Coordinate System.

3A.1.1.5 ENGINEERING UNITS AND TOLERANCES

Dimensions in this document are shown in the English (inch, pound, second) system of units followed by the equivalent metric value in parenthesis. Measurements may be verified in either system of units.

3A.1.1.5.1 TOLERANCE

Linear tolerances on English dimensions are as indicated in Table 3A.1.1.5.1–1, Linear Tolerances. Linear tolerances on metric dimensions are derived from English measurements and tolerances as defined in ASTM E380, Standard Practice for Use of the International System of Units (SI) (The Modernized Metric System), Section 4.5. Angular tolerances are ±0.1 degrees on all angles, unless otherwise stated.

October 25, 2005

3A – 2

POWER

ACBM PE

DATA

STRUCTURAL/MECHANICAL

ATTACHMENT

FIGURE 3A.1.1–1 ACTIVE COMMON BERTHING MECHANISM TO PRESSURIZED

ELEMENT FUNCTIONAL INTERFACE DIAGRAM

October 25, 2005

3A – 3

FIGURE 3A.1.1.4–1 ACTIVE COMMON BERTHING MECHANISM COORDINATE SYSTEM

ACBM PE

+XACBM

A

A

+ZACBM

RACBM

VIEW A–A

CL

+YACBM

NOTE: RACBM and θACBM define a radial coordinate system.

+ZACBM

θACBM

ACBM

Interface Plane

October 25, 2005

3A – 4

TABLE 3A.1.1.5.1–1 LINEAR TOLERANCES

ENGLISH DIMENSION IMPLIED TOLERANCE (INCHES)

X.XX +/– 0.030

X.XXX +/– 0.010

3A.1.1.6 ACTIVE COMMON BERTHING MECHANISM INTERFACE FUNCTIONS

ACBM shall support the following functions at the interface to PE:

A. Support Structural/Mechanical Attachment

B. Receive Power

C. Supply Data

D. Receive Data

3A.1.1.7 PRESSURIZED ELEMENT INTERFACE FUNCTIONS

PE shall support the following functions at the interface to ACBM:

A. Support Structural/Mechanical Attachment

B. Supply Power

C. Control Power

D. Supply Data

E. Receive Data

3A.1.2 INTERFACE RESPONSIBILITIES

3A.1.2.1 RESPONSIBILITY FOR THE ACTIVE COMMON BERTHING MECHANISM

Boeing Defense and Space Group (BD&SG) carries the responsibility for designing the ACBM to the interface requirements herein.

3A.1.2.2 RESPONSIBILITY FOR PRESSURIZED ELEMENT

3A.1.2.2.1 RESPONSIBILITY FOR LABORATORY ELEMENT (USL)

Unless otherwise noted herein, BD&SG carries the responsibility for designing the USL ACBM interface to the requirements imposed on the PE.

3A.1.2.2.2 RESPONSIBILITY FOR HABITATION ELEMENT (HAB)

Unless otherwise noted herein, BD&SG carries the responsibility for designing the Hab ACBM interface to the requirements imposed on the PE.

October 25, 2005

3A – 5

3A.1.2.2.3 RESPONSIBILITY FOR NODE

Unless otherwise noted herein, BD&SG carries the responsibility for designing the Node ACBM interface to the requirements imposed on the PE.

3A.1.2.2.4 DELETED

3A.1.2.3 RESPONSIBILITY FOR UTILITY CONNECTORS

The PE responsible agency shall be responsible for bulkhead feedthroughs for ACBM utilities.

BD&SG shall be responsible for interfacing utility connectors.

3A.2 INTERFACE REQUIREMENTS

3A.2.1 ACTIVE COMMON BERTHING MECHANISM INTERFACE REQUIREMENTS

3A.2.1.1 ENVELOPE REQUIREMENTS

3A.2.1.1.1 ENVELOPE

The ACBM shall not exceed the envelope defined in Figure 3A.2.1.1.1–1, Active Common Berthing Mechanism Envelope.

3A.2.1.1.1.1 STAYOUT ZONE FOR ACBM M/D DEPLOYABLE MECHANISM BELOW XCBM

=0 (RADIAL PORT ONLY)

The ACBM Meteroid Debris Deployable Mechanism (683–14599) as installed onto either Node 2 or Node 3 radial ports shall remain within the volume shown in Figure 3A.2.1.1.1.1–1, Radial Port Mechanism Envelope. This stayout zone only defines the volume below the ACBM to PE interfaces (Xcbm = 0).

October 25, 2005

3A – 6

SECTION A–A

(7

0) 2.

(101.6) 4.00

(62.4) 2.455

(1016.6) 40.025

45°

Stay–out zone

NOTE: Envelope shown in figure is typical for four places.

FIGURE 3A.2.1.1.1.1–1 RADIAL PORT MECHANISM ENVELOPE

3A.2.1.1.2 RESERVED VOLUMES

3A.2.1.1.2.1 ACTIVE COMMON BERTHING MECHANISM HARDWARE

The ACBM hardware mounting and operation shall not interfere with PE hardware.

October 25, 2005

3A – 7

3A.2.1.2 MASS PROPERTIES

3A.2.1.2.1 CENTER OF MASS

ACBM ring assembly Center of Gravity (CG) is X= 2.5 (63.5), Y= 0.0 and Z= 0.0 ± 0.5 inches (12.7). The motor controller assembly CG is shown in Figure 3A.2.1.2.1–1, Motor Controller Assembly Center of Gravity.

October 25, 2005

3A – 8

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉ

∅ 82.00 MAX (2083)

R 12.00 MAX

(305)

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ

ÉÉÉÉÉÉÉÉ CLEAR PASSAGE ENVELOPE (On–Orbit Berthed Configuration)

ACBM HARDWARE ENVELOPE

ACBM HARDWARE MAY ENCROACH ON THIS AREA PROVIDED THE INTRUSION DOES NOT

INTERFERE WITH PE STRUCTURE

10.15 MAX (257.8)

See Notes 2 & 3

11.15 MAX (283.2)

See Note 4

3.25 (82.55)

3.35 (85.1)

∅ 179.35

(4555.49) MAX

1.0 (25) MAX

XACBM=0

PE

STRUCTURE REF

CENTERLINE MODULE AXIS

Notes 1: Applicable to ACBM Radial Ports with closed deployable M/D covers. Axial ACBM Ports do not have M/D covers and do not have the diameter limit.

2: Applicable to Axial Port ACBMs.

3: Does not include any MLI covers on Axial Ports.

4: Applicable to Radial Port ACBMs at bumper locations.

5: Above envelope does not include fixes M/D skirts

See Note 1

50.00 MIN

50.00 REF

(1270.0)

See Note 2See Note 2

73.55 Ref

(1868.17)

(Ref Node Radial Port Measured from Node

Longitudinal Axis)

54.83 MAX (1393)

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉ

(See Note 2)

+ZCBM 0° REF

19.05°

19.05° θ = 90°ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ2 X 2.10 (53.3)

R 44.00 (1117.6)

2X R 41.5 (1054.1)

2 X 0.90 MAX (22.9)

Bumpers on radial ports (4 places) See Note 4

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ See note 5

A

A

B

B

SECTION BB

SECTION AA

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ 8.45

11.15 (283.2)

XACBM = 0

R = 41.5 (1054.1)

CL

FIGURE 3A2.1.1.1–1 ACTIVE COMMON BERTHING MECHANISM ENVELOPE

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉXACBM = 0

R = 41.5 (1054.1) (214.6)

11.15 (283.2)

8.45 (214.6)

October 25, 2005

3A – 9

Corrector Reference

TOP

12.28 (311.9)

5.76 + .5 (146.3)

8.43 + .5 (214.1)

17.0 (431.8)

4.5 (114.3)

1.35 + .5 (34.3)

FIGURE 3A.2.1.2.1–1 MOTOR CONTROLLER ASSEMBLY CENTER OF GRAVITY

October 25, 2005

3A – 10

3A.2.1.2.2 DELETED

3A.2.1.2.3 MASS LIMITATIONS

The ACBM mass shall not exceed 685 lb (311 Kg).

3A.2.1.3 STRUCTURAL/MECHANICAL ATTACHMENT

The ACBM shall supply structural and mechanical provisions for mechanical attachment to the

PE.

3A.2.1.3.1 DELETED

3A.2.1.3.2 INTERCONNECTING UTILITY HARDWARE

The ACBM interface design shall incorporate provisions for the mechanical connection of data and power between the ACBM and the PE in accordance with SSP 50005, International Space Station Flight Crew Standard.

3A.2.1.3.2.1 ACCESSIBILITY

The utility interface design shall comply with SSP 50005, requirements for Intra Vehicular Activity (IVA) accessibility.

Interface connections shall be manually mateable with one PE hatch open in the berthed configuration.

3A.2.1.3.2.2 REDUNDANCY

The ACBM shall supply redundant utility interfaces to the PE for data and power.

3A.2.1.3.2.3 ELECTRICAL CONNECTORS

The characteristics for electrical connectors inside the vestibule shall be in accordance with SSQ 21635, General Specifications for Connectors and Accessories, Electrical, Circular, Miniature, IVA/EVA/Robot Compatible, Space Quality.

3A.2.1.3.2.4 UTILITY CABLE SPECIFICATIONS

3A.2.1.3.2.4.1 COMMAND/CONTROL DATA BUS CABLE SPECIFICATIONS

The physical characteristics for MIL–STD–1553 cable shall be in accordance with SSQ 21655, General Specification for Cable, Electrical, MIL–STD–1553B Data Bus, Space Quality.

October 25, 2005

3A – 11

3A.2.1.3.2.4.2 POWER CABLE SPECIFICATIONS

Secondary power cables shall conform to SSQ 21656, General Specification for Wire and Cable, Electric, Fluoropolymer–insulated, Nickel Coated Copper or Copper Alloy.

3A.2.1.3.3 VESTIBULE CLEARANCES

3A.2.1.3.3.1 UTILITY JUMPER ENVELOPE

The ACBM shall provide an unobstructed area in addition to the clear passage envelope for the installation of utility jumpers between PEs when berthed and outfitted.

3A.2.1.3.4 ATMOSPHERIC CONTAINMENT

The ACBM to PE interface shall not exceed 0.021 sccs leakage air at 14.7 psia (101.4 KPa).

3A.2.1.3.4.1 DELETED

3A.2.1.4 ELECTRICAL INTERFACES

3A.2.1.4.1 CURRENT RATING

The ACBM shall be rated at a minimum of 16.8A for each of two redundant power strings. Each power string shall draw a maximum of 5.0 Amps total from the PE.

3A.2.1.4.1.1 POWER QUALITY

The power quality shall be in accordance with interface C of SSP 30482, Volume II, Electrical Power Specifications and Standards, except the minimum steady state voltage delivered to the CBM is 111.5 Vdc.

3A.2.1.5 ELECTRONIC INTERFACES

3A.2.1.5.1 COMMAND/CONTROL DATA BUS

The ACBM to PE data interface shall be provided on two separate, bi–directional one–failure tolerant paths.

3A.2.1.5.1.1 DATA BUS FORMAT/STANDARD

The ACBM to PE data interface format shall be in accordance with MIL–STD–1553.

3A.2.1.5.1.2 DATA BUS SIGNAL CHARACTERISTICS

The ACBM to PE data interface signal characteristics shall be in accordance with

MIL–STD–1553.

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3A – 12

3A.2.1.5.1.3 DATA BUS CONNECTIVITY

3A.2.1.5.1.3.1 DATA BUS COUPLING

The ACBM to PE data interface shall be transformer coupled in accordance with

MIL–STD–1553.

3A.2.1.5.1.3.2 DATA BUS INTERFACE IMPEDANCES

The ACBM to PE data interface impedance shall be in accordance with MIL–STD–1553.

3A.2.1.5.1.4 TERMINAL OPERATIONS

The ACBM shall respond as a remote terminal to the PE bus controller in accordance with

MIL–STD–1553.

3A.2.1.5.1.5 DATA BUS INTERFACE FUNCTIONS

The ACBM shall provide the following terminal capabilities:

A. Message entry on bus transmission failure for both no remote terminal response and status word indication of message error.

B. Support the following MIL–STD–1553 protocol options:

B.1. All required and operational states in the MIL–STD–1553 status word.

B.2. All MIL–STD–1553 mode codes.

B.3. Broadcast commands with and without data words.

3A.2.1.5.1.6 DATA BUS SERVICE AVAILABILITY

The ACBM to PE data interface shall be available to receive commands and provide status prior to and during all berthing/deberthing activity at that port.

3A.2.1.6 SOFTWARE INTERFACES

The ACBM to PE software interfaces shall be in accordance with SSP 41175, Station Management and Control to ISS Software Interface Control Document, for U.S. elements and SSP 41151, SSMB to Japanese Experiment Module Interface Requirements Document Appendix D Software Interfaces, for the JEM.

3A.2.1.7 ENVIRONMENTS

3A.2.1.7.1 ELECTROMAGNETIC EFFECTS

3A.2.1.7.1.1 ELECTROMAGNETIC COMPATIBILITY

The ACBM to PE interface shall meet the requirements of SSP 30243, Space Station Systems Requirements for Electromagnetic Compatibility.

October 25, 2005

3A – 13

3A.2.1.7.1.2 ELECTROMAGNETIC INTERFERENCE

The ACBM to PE interface shall meet the requirements of SSP 30482, Space Station Electric Power Specifications and Standards Volume 1: EPS Electrical Performance Specifications.

3A.2.1.7.1.3 GROUNDING

The ACBM to PE interface shall meet the requirements of SSP 30240, Space Station Grounding Requirements.

3A.2.1.7.1.4 BONDING

The ACBM to PE structural/mechanical interface shall meet the requirements of SSP 30245, Space Station Electrical Bonding Requirements. The bonding shall meet the requirements for a Class R bond.

3A.2.1.7.1.5 CABLE AND WIRE DESIGN

The ACBM to PE cable and wire interface shall meet the requirements of SSP 30242, Space Station Cable/Wire Design and Control Requirements for Electromagnetic Compatibility

3A.2.1.7.1.6 ELECTROSTATIC DISCHARGE

The ACBM to PE interface shall meet the requirements of SSP 30243.

3A.2.1.7.1.7 CORONA

The ACBM to PE interface shall meet the requirements of SSP 30243.

3A.2.1.7.2 STRUCTURAL LOADS

3A.2.1.7.2.1 BERTHING AND ON ORBIT

The ACBM to PE interface shall survive loads induced on the ACBM as defined in the documents listed in Table 3A.2.1.7.2.1–1, Element to Element ICDs and transformed as depicted in Figure 3A.2.1.7.2.1–1, Load Transformation Diagram without loss of functionality as defined herein.

October 25, 2005

3A – 14

FIGURE 3A.2.1.7.2.1–1 LOAD TRANSFORMATION DIAGRAM

Interface load point is defined at the origin of the CBM Coordinate System

+ZCBM

+XCBM

Bending Moment

Shear Load

Axial LoadTorsion

5.15

Load Application Point

NOTE: Combine loads in all possible combinations.

Moment Arm

October 25, 2005

3A – 15

TABLE 3A.2.1.7.2.1–1 ELEMENT TO ELEMENT ICDS

SSP 41140 Node Element 1 to U.S. Habitation Element ICD

SSP 41141 Node Element 1 to U.S. Laboratory Element ICD

SSP 41142 Node Element 1 to Cupola Element ICD

SSP 41143 Node Element 2 to U.S. Laboratory Element ICD

SSP 41145 Node Element 1 to Airlock Element ICD

SSP 41150 Space Station Manned Base to Columbus Attached Pressurized Module IRD

SSP 42007 United States On–orbit Segment to Mini Pressurized Logistics Module ICD

SSP 42097 Pressurized Mating Adapter to U.S. Pressurized Elements ICD

SSP 42122 Node Element 1 to Pressurized Mating Adapter ICD

SSP 44030 ITS Z1 to Node 1 ICD

3A.2.1.7.2.2 LAUNCH AND LANDING

The ACBM to PE interface shall survive CBM launch and landing loads (one cycle) defined in Table 3A.2.1.7.2.2–1, ACBM Liftoff and Landing Acceleration Environment. ACBM to Node interfaces that are launched with a Pressurized Mating Adapter (PMA) or Cupola attached to the ACBM shall survive the launch and landing loads defined in the documents listed in Table 3A.2.1.7.2.2–2, Element to Element Interface Control Documents For Interfaces Launched Mated.

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3A – 16

TABLE 3A.2.1.7.2.2–1 ACBM LIFTOFF AND LANDING ACCELERATION

ENVIRONMENT

Liftoff n n n

Landing g’s g’s g’s x y z n n n g’s g’s g’s x y z

+/– 4.3 +/– 2.3

+/– 8.1

+/– 4.1 +/– 3.7

+/– 6.9

Acclerations act at CG and apply concurrently in all possible combinations xy z for each event. Reference Figure 3A.2.1.7.2.2–1 for coordinate axes.

rx rad/sec^2 +/–5.8 ry rad/sec^2 +/–20.0 rz rad/sec^2 +/–3.7 rx rad/sec^2 +/–4.4 ry rad/sec^2 +/–14.5 rz rad/sec^2 +/–11.2

FIGURE 3A.2.1.7.2.2–1 SPACE SHUTTLE REFERENCE DIRECTIONS

TABLE 3A.2.1.7.2.2–2 ELEMENT TO ELEMENT INTERFACE CONTROL DOCUMENTS FOR

INTERFACES LAUNCHED MATED

SSP 41142 Node Element 1 to Cupola Element ICD

SSP 42097 Pressurized Mating Adapter to U.S. Pressurized Elements ICD

SSP 44122 Node Element 1 to Pressurized Docking Module Adapter ICD

3A.2.1.7.3 VIBROACOUSTICS

The ACBM to PE interface shall survive the launch vibroacoustics defined in Table 3A.2.1.7.3–1, Active Common Berthing Mechanism to Pressurized Elements Launch Vibroacoustics for all elements except those launched mated to another PE. ACBM to Node interfaces, which are launched with a PMA or Cupola attached to the ACBM, shall survive the launch vibroacoustics defined in the documents listed in Table 3A.2.1.7.2.2–2 without loss of functionality as defined herein.

October 25, 2005

3A – 17

TABLE 3A.2.1.7.3–1 ACTIVE COMMON BERTHING MECHANISM TO PRESSURIZED

ELEMENTS LAUNCH VIBROACOUSTICS

LOCATION FREQUENCY ACCELERATION

Tangential to PE endcone surface

20 Hz 20–80 Hz

80 Hz 80–100 Hz

100–200 Hz 200–2000 Hz

2000 Hz

Composite

0.0007 G2/Hz

+ 5.0 dB/Oct

0.007 G2/Hz

+ 9.32 dB/Oct

0.014 G2/Hz

– 9.0 db/Oct

0.000014 G2/Hz

1.8 GRMS

Normal to PE Endcone Surface

20 Hz 20–100 Hz

100 Hz 100–125 Hz 125–300 Hz

300–2000 Hz 2000 Hz

Composite

0.003 G2/Hz

+ 6.0 dB/Oct

0.068 G2/Hz

+9.32 dB/Oct

0.14 G2/Hz

– 9.0 dB/Oct

0.00046 G2/Hz

7.0 GRMS

Duration 7.5 Secs/Mission

3A.2.1.8 THERMAL

The ACBM to PE interface shall function as described herein when exposed to the thermal radiation environment per SSP 50023, Thermal Control Plan. SSP 50023 specifies math models and/or thermal design analysis criteria for interface design.

3A.2.1.9 DEPRESSURIZATION

The ACBM to PE interface shall survive a 0.76 psi/sec (5.24 KPa/sec) depressurization rate over the range of 15.2 psia (104.8 KPa) to 5.5E–12 psia (2.7E–10 Torr) without loss of functionality as specified herein.

3A.2.1.10 REPRESSURIZATION

The ACBM to PE interface shall survive a 0.30 psi/sec (2.07 KPa/sec) repressurization rate over the range of 5.5E–12 psia (2.7E–10 Torr) to 15.2 psia (104.8 KPa) without loss of functionality as specified herein.

October 25, 2005

3A – 18

3A.2.2 PRESSURIZED ELEMENT INTERFACE REQUIREMENTS

3A.2.2.1 ENVELOPE REQUIREMENTS

3A.2.2.1.1 ENVELOPE

PE shall not interfere with ACBM hardware within the envelope defined in Figure 3A.2.1.1.1–1.

3A.2.2.1.2 RESERVED VOLUMES

3A.2.2.1.2.1 ACTIVE COMMON BERTHING MECHANISM HARDWARE

The PE shall not interfere with ACBM hardware mounting or operation.

3A.2.2.2 MASS PROPERTIES

The PE shall accommodate an ACBM with mass properties as defined in paragraph 3A.2.1.2.

3A.2.2.3 STRUCTURAL/MECHANICAL ATTACHMENT

The PE shall supply structural and mechanical provisions for the mechanical attachment of the

ACBM.

3A.2.2.3.1 DELETED

3A.2.2.3.2 INTERCONNECTING UTILITY HARDWARE

The PE interface design shall incorporate provisions for the mechanical connection of data and power between the PE and the ACBM in accordance with SSP 50005.

3A.2.2.3.2.1 ACCESSIBILITY

The utility interface design shall comply with SSP 50005 requirements for IVA accessibility.

Interface connections shall be manually mateable with one PE hatch open in the berthed configuration.

3A.2.2.3.2.2 REDUNDANCY

The PE shall supply redundant utility interfaces for ACBM data and power.

3A.2.2.3.2.3 ELECTRICAL CONNECTORS

The characteristics for electrical connectors inside the vestibule shall be in accordance with SSQ 21635.

October 25, 2005

3A – 19

3A.2.2.3.2.4 UTILITY CABLE SPECIFICATIONS

3A.2.2.3.2.4.1 COMMAND/CONTROL DATA BUS CABLE SPECIFICATIONS

The physical characteristics for MIL–STD–1553 cable shall be in accordance with SSQ 21655.

3A.2.2.3.2.4.2 POWER CABLE SPECIFICATIONS

Secondary power cables shall conform to SSQ 21656.

3A.2.2.3.3 VESTIBULE CLEARANCES

3A.2.2.3.3.1 UTILITY JUMPER ENVELOPE

The PE utility jumpers within the vestibule shall be routed within the unobstructed area provided by the ACBM.

3A.2.2.3.4 ATMOSPHERIC CONTAINMENT

The PE to ACBM interface shall not exceed 0.021 sccs leakage air at 14.7 psi (101.4 KPa).

3A.2.2.4 ELECTRICAL INTERFACES

3A.2.2.4.1 SUPPLY POWER

PE shall supply a maximum of 16.8 A per each of two redundant power strings. Each power string shall be rated at a minimum of 5.0 Amps total to the ACBM.

The Japanese Experiment Module (JEM) shall supply a minimum of 5.0 Amps per each of the two redundant power strings.

3A.2.2.4.1.1 POWER QUALITY

The power quality shall be in accordance with interface C of SSP 30482, Volume I, Electrical Power Specifications and Standards, except the minimum steady state voltage delivered to the CBM is 111.5 Vdc.

3A.2.2.4.1.2 POWER CONTROL

3A.2.2.4.1.2.1 OVER–VOLTAGE/OVER–CURRENT PROTECTION

The PE shall provide over–voltage/over–current protection for the ACBM power.

3A.2.2.5 ELECTRONIC INTERFACES

3A.2.2.5.1 COMMAND/CONTROL DATA BUS

The PE to ACBM data interface shall be provided on two separate, bi–directional, one–failure tolerant paths.

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3A – 20

3A.2.2.5.1.1 DATA BUS FORMAT/STANDARD

The PE to ACBM data interface format shall be in accordance with MIL–STD–1553.

3A.2.2.5.1.2 DATA BUS SIGNAL CHARACTERISTICS

The PE to ACBM data interface signal characteristics shall be in accordance with

MIL–STD–1553.

3A.2.2.5.1.3 DATA BUS CONNECTIVITY

3A.2.2.5.1.3.1 DATA BUS COUPLING

The PE to ACBM data interface shall be transformer coupled in accordance with

MIL–STD–1553.

3A.2.2.5.1.3.2 DATA BUS INTERFACE IMPEDANCES

The PE to ACBM data interface impedance shall be in accordance with MIL–STD–1553.

3A.2.2.5.1.4 TERMINAL OPERATIONS

The PE shall be the MIL–STD–1553 bus controller for the PE to ACBM data bus interface.

3A.2.2.5.1.5 DATA BUS INTERFACE FUNCTIONS

The PE shall support the following terminal capabilities from the ACBM:

A. Message entry on bus transmission failure for both no remote terminal response and status word indication of message error.

B. Support the following MIL–STD–1553 protocol options:

B.1. All required and operational states in the MIL–STD–1553 status word.

B.2. All MIL–STD–1553 mode codes.

B.3. Broadcast commands with and without data words.

3A.2.2.5.1.6 DATA BUS SERVICE AVAILABILITY

The PE to ACBM data interface shall be available to send commands and receive status prior to and during all berthing/deberthing activity at that port.

3A.2.2.6 SOFTWARE INTERFACES

The PE to ACBM interfaces are defined in SSP 41175 Book 2, Station Management and Control to ISS Software Interface Control Document, SSP 41178 Book 27 for U.S. Elements and Node 2, and SSP 41151 Appendix D, for the JEM.

October 25, 2005

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3A.2.2.7 ENVIRONMENTS

3A.2.2.7.1 ELECTROMAGNETIC EFFECTS

3A.2.2.7.1.1 ELECTROMAGNETIC COMPATIBILITY

The PE to ACBM interface shall meet the requirements of SSP 30243.

3A.2.2.7.1.2 ELECTROMAGNETIC INTERFERENCE

The PE to ACBM interface shall meet the requirements of SSP 30482, Space Station Electric Power Specifications and Standards Volume 1: EPS Electrical Performance Specifications.

3A.2.2.7.1.3 GROUNDING

The PE to ACBM interface shall meet the requirements of SSP 30240.

3A.2.2.7.1.4 BONDING

The PE to ACBM structural/mechanical interface shall meet the requirements of SSP 30245.

The bonding shall meet the requirements for a Class R bond.

3A.2.2.7.1.5 CABLE AND WIRE DESIGN

The PE to ACBM cable and wire interface shall meet the requirements of SSP 30242.

3A.2.2.7.1.6 ELECTROSTATIC DISCHARGE

The PE to ACBM interface shall meet the requirements of SSP 30243.

3A.2.2.7.1.7 CORONA

The PE to ACBM interface shall meet the requirements of SSP 30243.

3A.2.2.7.2 STRUCTURAL LOADS

3A.2.2.7.2.1 BERTHING AND ON ORBIT

The PE to ACBM interface shall survive loads induced on the ACBM as defined in the documents listed in Table 3A.2.1.7.2.1–1 and transformed as depicted in Figure 3A.2.1.7.2.1–1 without loss of functionality as defined herein.

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3A.2.2.7.2.2 LAUNCH AND LANDING

The PE to ACBM interface shall survive launch and landing loads defined in Table 3A.2.1.7.2.2–1. Node to ACBM interfaces that are launched with a PMA or Cupola attached to the ACBM shall survive the launch and landing loads defined in the documents listed in Table 3A.2.1.7.2.2–2.

3A.2.2.7.3 VIBROACOUSTICS

The PE to ACBM interface shall survive the launch vibroacoustics defined in Table 3A.2.1.7.3–1 for all elements, except those launched mated to another PE. Node to ACBM interfaces, which are launched with a PMA or Cupola attached to the ACBM, shall survive the launch vibroacoustics defined in the documents listed in Table 3A.2.1.7.2.2–2 without loss of functionality as defined herein.

3A.2.2.8 THERMAL

The PE to ACBM interface shall function as described herein when exposed to the thermal radiation environment per SSP 50023. SSP 50023 specifies math models and/or thermal design analysis criteria for interface design.

3A.2.2.9 DEPRESSURIZATION

The PE to ACBM interface shall survive a 0.76 psi/sec (5.24 KPa/sec) depressurization rate over the range of 15.2 psia (104.8 KPa) to 5.5E–12 psia (2.7E–10 Torr) without loss of functionality as specified herein.

3A.2.2.10 REPRESSURIZATION

The PE to ACBM interface shall survive a 0.30 psi/sec (2.07 KPa/sec) repressurization rate over

October 25, 2005

3B – 1

3B.0 PASSIVE COMMON BERTHING MECHANISM TO PRESSURIZED ELEMENT

INTERFACES

3B.1 GENERAL

This section defines the functional interface requirements between the PCBM and the PEs.

3B.1.1 INTERFACE DESCRIPTION

The PCBM to PE interface consists of a structural/mechanical interface only.

3B.1.1.1 PASSIVE COMMON BERTHING MECHANISM DESCRIPTION

The PCBM is a device that serves as part of a common PE to PE interface. The PCBM contains the passive components necessary to accomplish the PE to PE berthing operation.

3B.1.1.2 PRESSURIZED ELEMENT DESCRIPTION

The PE is any element that utilizes the PCBM for on–orbit berthing to another element.

3B.1.1.3 INTERFACE PLANE DESCRIPTION

The PCBM to PE structural/mechanical interface plane lies at the PE bulkhead flange, which is defined at the XPCBM=0 plane.

3B.1.1.4 COORDINATE SYSTEM

The PCBM coordinate system is shown in Figure 3B.1.1.4–1, Passive Common Berthing Mechanism Coordinate System.

3B.1.1.5 ENGINEERING UNITS AND TOLERANCES

Dimensions in this document are shown in the English (inch, pound, second) system of units followed by the equivalent SI (metric) value in parenthesis. Measurements may be verified in either system of units.

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3B – 2

FIGURE 3B.1.1.4–1 PASSIVE COMMON BERTHING MECHANISM

COORDINATE SYSTEM

PCBM PE

+XPCBM

A

A

+ZPCBM

RPCBM

VIEW A–A

CL

+YPCBM

NOTE: RPCBM and θPCBM define a radial coordinate system.

+ZPCBM

θPCBM

PCBM

Interface Plane

October 25, 2005

3B – 3

3B.1.1.5.1 TOLERANCE

Linear tolerances on English dimensions are as indicated in Table 3A.1.1.5.1–1. Linear tolerances on metric dimensions are derived from English measurements and tolerances as defined in ASTM E380, Section 4.5. Angular tolerances are ±0.1 degrees on all angles unless otherwise stated.

3B.1.1.6 PASSIVE COMMON BERTHING MECHANISM INTERFACE FUNCTIONS

The PCBM shall support structural/mechanical attachment at the interface to PE.

3B.1.1.7 PRESSURIZED ELEMENT INTERFACE FUNCTIONS

The PE shall support structural/mechanical attachment at the interface to PCBM.

3B.1.2 INTERFACE RESPONSIBILITIES

3B.1.2.1 RESPONSIBILITY FOR THE PASSIVE COMMON BERTHING MECHANISM

BD&SG carries the responsibility for designing the PCBM to the interface requirements herein.

3B.1.2.2 RESPONSIBILITY FOR PRESSURIZED ELEMENT

3B.1.2.2.1 RESPONSIBILITY FOR LABORATORY ELEMENT

Unless otherwise noted herein, BD&SG carries the responsibility for designing the USL to PCBM interface to the requirements imposed on the PE.

3B.1.2.2.1.1 RESPONSIBILITY FOR HABITATION ELEMENT

Unless otherwise noted herein, BD&SG carries the responsibility for designing the Hab to PCBM interface to the requirements imposed on the PE.

3B.1.2.2.1.2 RESPONSIBILITY FOR NODE

Unless otherwise noted herein, BD&SG carries the responsibility for designing the Node to PCBM interface to the requirements imposed on the PE.

3B.1.2.2.1.3 RESPONSIBILITY FOR CUPOLA

Unless otherwise noted herein, BD&SG carries the responsibility for designing the Cupola to PCBM interface to the requirements imposed on the PE.

October 25, 2005

3B – 4

3B.1.2.2.1.4 DELETED

3B.1.2.2.1.5 DELETED

3B.1.2.2.1.6 RESPONSIBILITY FOR PRESSURIZED MATING ADAPTER

Unless otherwise noted herein, McDonnell Douglas Aerospace (MDA) carries the responsibility for designing the PMA to PCBM interface to the requirements imposed on the PE.

3B.1.2.2.1.7 DELETED

3B.1.2.2.1.8 RESPONSIBILITY FOR Z1 INTEGRATED TRUSS SEGMENT (Z1)

Unless otherwise noted herein, Rocketdyne carries the responsibility for designing the Z1 to PCBM interface to the requirements imposed on the PE.

3B.2 INTERFACE REQUIREMENTS

3B.2.1 PASSIVE COMMON BERTHING MECHANISM INTERFACE REQUIREMENTS

3B.2.1.1 ENVELOPE REQUIREMENTS

3B.2.1.1.1 ENVELOPE

The PCBM shall not exceed the envelope defined in Figure 3B.2.1.1.1–1,…