42137P1_RC_CD_012230.pdf

SSP 42137, Part 1, Revision C

National Aeronautics and Space Administration International Space Station Program Johnson Space Center Houston, T exas Contract No. NNJ09GA18B PIC−SI−01

International Space Station Program

Revision C

30 November 2009

TYPE 1 NASA APPROVED

SPACE STATION PROGRAM

Integrated T russ Segment S0 to Node 3 Interface Control Document, Part 1 esa european space agency

SSP 42137, Part 1, Revision C 30 November 2009

REVISION AND HISTORY PAGE

REV. DESCRIPTION PUB.

DATE

− Initial Release 12−08−94

CHANGE 1, IRN 0145 (REFERENCE SSCD 000145 EFF. 10−31−95) 06−14−96

CHANGE 2, IRN 0002 (REFERENCE SSCD 000102 EFF. 11−4−94) 11−04−96

CHANGE 3, IRN 0001 per CCR 000263 02−11−97

A Revision A released per SSCN 000913. 02−16−99 Incorporates SSCNs 000249 and 000913. This revision incorporates the changes to reference the Master ADL for the reference document’s revision and date

For Information: The PIRNs rolled into Revision A by previously released IRNs or as a part of Revision A are noted below with their associated SSCN.

PIRN 42137−0011E IRN 0002 SSCN 000102

PIRN 42137−0012 IRN 0002 SSCN 000102

PIRN 42137−0010B IRN 0145 SSCN 000145

PIRN 42137−0015B IRN 0003 SSCN 000249

PIRN 42137−0001B IRN 0001 SSCN 000263

PIRN 42137−0003A IRN 0001 SSCN 000263

PIRN 42137−0004A IRN 0001 SSCN 000263

PIRN 42137−0008 IRN 0001 SSCN 000263

Note: IRN 0003 was never released, but was cancelled, changes were incorporated into Revision A. IRN numbers 0004, 0005, and 0006 have been administratively cancelled.

B Revision B released per SSCN 006744, Eff. 05−02−02 07−22−03

For Information: The PIRNs rolled into Revision B by previously released IRNs or as a part of Revision B are noted below with their associated SSCN.

PIRN 42137−0006C SSCN 006744

PIRN 42137−0014 SSCN 006744

PIRN 42137−NA−0001EIRN 0007/0008 SSCN 001786

PIRN 42137−NA−0002C SSCN 006744

PIRN 42137−NA−0003 SSCN 006744

PIRN 42137−NA−0004 SSCN 006744

PIRN 42137−NA−0005 SSCN 006744

Revision B also closes IRN 0012 and associated SSCN 002611 as it was overcome by events.

NOTE: IRN 42137−NA−0001E incorporated into Revision B of SSP 42137 Part 1 adds Revision and Date to documents listed in Section 2. This was done when this ICD was changed from a USOS only to a USOS to IP ICD. SSCNs processed before release of Revision B were evaluated under the assumption that this document was under the USOS and impacts were covered by the update to SSP 50257 and therefore no impact to SSP 42137 was necessary. Now that this document has Revisions and Dates as an IP document, SSP 42137 Section 2 documents are not in sync with SSP 50257.

SSCN 001786 approves tasks assigned in SSCN 000859 and changes the Title.

REVISION AND HISTORY PAGE − Continued

REV. DESCRIPTION PUB.

DATE

C Revision C released per SSCN 012230, Eff. 05−13−10 06−03−10

Revision C incorporates the following approved PIRN/IRNs associated with the appropriate SSCNs:

PIRN IRN SSCN

42137−NA−0006 N/A 008215

42137−NA−0007 N/A 002199

42137−NA−0007 N/A 002588

42137−NA−0007 N/A 003213

42127−NA−0007 N/A 003282

42137−NA−0007 N/A 008255

42137−NA−0007 N/A 008939

42127−NA−0007 N/A 009086

42137−NA−0007 N/A 009111

42137−NA−0007 N/A 009475

42137−NA−0008D N/A 010560

i

PREFACE

The Space Station Program Integrated Truss Segment S0 to Node 3 Interface Control Document

(ICD), Part 1 defines the physical, functional, and environmental interfaces between the

Integrated Truss Segment (ITS) S0 and the Node 3 modules for the on-orbit interfaces.

The contents of this document are intended to be consistent with the task and products to be prepared by the International Space Station (ISS) Program Partners as defined in SSP 41000, International Space Station System Specification. This ICD shall be implemented on all new

ISS Program activities and shall be included in any existing contracts through contract changes.

This document is under the control of the Interface Control Working Group (ICWG) as described in SSP 30459, International Space Station Interface Control Plan.

ii

INTERNATIONAL SPACE STATION PROGRAM

INTEGRATED TRUSS SEGMENT S0 TO NODE 3

INTERFACE CONTROL DOCUMENT, PART 1

CONCURRENCE

Cristina M. Clark ARES/PI&C

PREPARED BY: PRINT NAME ORGN

/s/Victoria C. Rodriguez for Cristina M.

Clark

11/30/09

SIGNATURE DATE

CHECKED BY (ARES): Anh Tang ARES/PI&C

PRINT NAME ORGN

/s/Anh Tang 11/30/09

SIGNATURE DATE

DQA: Bonnie Johnson ARES/PI&C

PRINT NAME ORGN

/s/Bonnie Johnson 11/30/09

SIGNATURE DATE

APPROVED BY (NASA): Ty Richmond NASA/OM

PRINT NAME ORGN

/s/Tyson Richmond 12/1/09

SIGNATURE DATE

iii

INTERNATIONAL SPACE STATION PROGRAM

INTEGRATED TRUSS SEGMENT S0 TO NODE 3

INTERFACE CONTROL DOCUMENT, PART 1

LIST OF CHANGES

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

SSCBD ENTRY DATE CHANGE PARAGRAPH

249 11/14/98 3.2.1.3.1

3.2.1.3.1.1

3.2.1.3.1.1

3.2.1.3.1.2

3.2.1.3.1.3

3.2.1.3.1.4

3.2.1.3.2

3.2.1.3.2.1

3.2.1.3.2.1.1

3.2.1.3.2.2

3.2.1.3.2.3

3.2.1.3.2.4

3.2.2.3.1

3.2.2.3.1.1

3.2.2.3.2.1.1

3.2.2.3.1.2

3.2.2.3.1.3

3.2.2.3.1.4

3.2.2.3.2

3.2.2.3.2.1

3.2.2.3.2.1.1

3.2.2.3.2.2

3.2.2.3.2.3

3.2.2.3.2.4

913 2.0

249 11/14/98 3.2.1.3.1.1.1−1

3.2.1.3.2.1.1−1

3.2.2.3.1.1.1−1

3.2.2.3.2.1.1−1

6744 42137−0006C P:3.2.1.5.1.1, 3.2.2.5.1.1; F:3.2.1.5.1.1−1;

T:3.2.1.5.1.1−2 (Add)

6744 42137−0014 P: 3.2.1.1.1, 3.2.2.1.1, 3.2.1.5, 3.2.2.5, 3.2.1.3.1.1, 3.2.1.3.2.1, 3.2.2.3.1.1, 3.2.2.3.2.1; T:3.2.1.2.1.1.1−1 iv

INTERNATIONAL SPACE STATION PROGRAM

INTEGRATED TRUSS SEGMENT S0 TO NODE 3

INTERFACE CONTROL DOCUMENT, PART 1

LIST OF CHANGES Continued

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

SSCBD ENTRY DATE CHANGE PARAGRAPH

859/1786 42137−NA−0001E Cover, Preface, Concurrence, P:1.1, 1.2, 3.1.1, 3.1.1.2, 3.1.1.3, 3.1.1.4, 3.1.1.7, 3.1.1.8, 3.1.2, 3.1.2.1, 3.2.1.2.1.1, 3.2.1.2.1.1.3, 3.1.2.2, 3.1.2.3, 3.2.1.1, 3.2.1.2.1, 3.2.1.2.2, 3.2.1.3.1, 3.2.1.3.1.1, 3.2.1.3.2, 3.2.1.4.1, 3.2.1.4.1.1, 3.2.1.4.1.2, 3.2.1.5, 3.2.1.5.2, 3.2.1.5.3, 3.2.1.6.1.2, 3.2.1.6.1.3, 3.2.1.6.1.4, 3.2.2, 3.2.2.1.4, 3.2.2.2.1, 3.2.2.3.2, 3.2.2.3.2.1.1, 3.2.2.4.1, 3.2.2.4.1.1, 3.2.2.4.1.2, 3.2.2.4.1.2.1, 3.2.2.4.1.2.2, 3.2.2.5, 3.2.2.5.1.1, 3.2.2.5.2, 3.2.2.5.5, 3.2.2.6.1.1, 3.2.2.6.1.2, 3.2.2.6.1.3, 3.2.2.6.1.4, 3.2.2.6.2.1.1, ADL

Updates, 3.2.1.6.1.5 (Add) F: 3.1.1−1, 3.2.1.2.1.1.3−1, 3.2.1.2.1.1.3−2, 3.2.1.2.1.1.3−3, 3.2.1.2.1.1.3−4, 3.2.1.2.1.1.3−5, 3.2.1.5.1.1−1 T: 3.2.1.2.1.1.1−1, 3.2.1.2.1.1.1−2, 3.2.1.3.2.1.1.1−1, 3.2.1.3.2.1.1−1, 3.2.2.3.2.1.1−1, 3.2.2.6.2.1.1−1

6744 11/30/01 42137−NA−0002C T: 3.2.1.2.1.1.1−1, 3.2.1.2.1.1.1−2

42137−NA−0003 T: 3.2.1.2.1.1.1−2

42137−NA−0004 P: 3.2.1.5.2, 3.2.2.5.2

42137−NA−0005 T: 3.2.1.2.1.1.1−1

008215 11/09 42137−NA−0006P: 3.2.12.1.1, 3.2.2.2.1.1, 3.2.2.2.1.1.1,

3.2.2.2.1.1.2, 3.2.2.2.1.2, 3.2.2.2.1.2.1,

3.2.2.2.1.2.2 F: 3.2.1.2−1

T: 3.2.1.2.1.1.1−1, 3.2.1.3.1.1.1−1, 3.2.1.3.2.1.1−1, 3.2.2.3.1.1.1−1, 3.2.2.3.2.1.1−1 v

INTERNATIONAL SPACE STATION PROGRAM

INTEGRATED TRUSS SEGMENT S0 TO NODE 3

INTERFACE CONTROL DOCUMENT, PART 1

LIST OF CHANGES Continued

SSCBD ENTRY DATE CHANGE PARAGRAPH

002199 11/09 42137−NA−0007 P: 2.1

002588, 003213, 003282, 008255, 008939, 009086, 009111, 009475

010560 11/09 42137−NA−0008P: 3.1.1, 3.1.1.3, 3.1.1.7, 3.1.1.8, 3.2.1.2.1.1,

3.2.1.2.1.1.3, 3.2.1.5 F: 3.1.1−1, 3.2.1.2−1, 3.2.1.2.1.1.3−1, 3.2.1.2.1.1.3−2, 3.2.1.2.1.1.3−3, 3.2.1.2.1.1.3−4, 3.2.1.2.1.1.3−5, 3.2.1.5.1.1−1 T: 3.2.1.2.1.1.1−1, 3.2.1.3.1.1.1−1, 3.2.1.3.2.1.1−1

SSP 42137, Part 1, Revision C November 30, 2009

TABLE OF CONTENTS

PARAGRAPH PAGE

vi

1.0 INTRODUCTION 1 - 1

1.0 INTRODUCTION 1 - 1

1.1 PURPOSE & SCOPE 1 - 1

1.2 PRECEDENCE 1 - 1

1.3 DELEGATION OF AUTHORITY 1 - 1

2.0 DOCUMENTS 2 − 1

2.1 APPLICABLE DOCUMENTS 2 − 1

2.2 REFERENCE DOCUMENTS 2 − 3

3.0 INTERFACES 3 - 1

3.1 GENERAL 3 - 1

3.1.1 INTERFACE DESCRIPTION 3 - 1

3.1.1.1 ITS S0 DESCRIPTION 3 - 1

3.1.1.2 NODE 3 3 - 2

3.1.1.3 INTERFACE PLANE DESCRIPTION 3 - 2

3.1.1.4 COORDINATE SYSTEMS 3 - 2

3.1.1.5 TOLERANCES 3 - 2

3.1.1.6 ENGINEERING UNITS 3 - 2

3.1.1.7 PRE ITS S0 INTERFACE FUNCTIONS 3 - 2

3.1.1.8 NODE 3 INTERFACE FUNCTIONS 3 - 3

3.1.2 INTERFACE RESPONSIBILITIES 3 - 3

3.1.2.1 RESPONSIBILITY FOR ITS S0 3 - 3

3.1.2.2 RESPONSIBILITY FOR NODE 3 3 - 3

3.1.2.3 RESPONSIBILITY FOR UTILITY CONNECTORS 3 - 3

3.2 INTERFACE REQUIREMENTS 3 - 3

3.2.1 INTEGRATED TRUSS SEGMENT S0 3 - 3

3.2.1.1 INTERCONNECTING UTILITY HARDWARE 3 - 3

3.2.1.1.1 ACCESSIBILITY 3 - 3

3.2.1.1.2 ELECTRICAL CONNECTORS 3 - 4

3.2.1.1.3 ELECTRICAL UTILITY CABLE SPECIFICATIONS 3 - 4

3.2.1.1.3.1 ELECTRICAL POWER CABLE SPECIFICATIONS 3 - 4

3.2.1.1.3.2 VIDEO CABLE SPECIFICATIONS 3 - 4

3.2.1.1.3.3 HEAT EXCHANGER INSTRUMENTATION CABLES 3 - 4

3.2.1.1.4 REDUNDANT UTILITY INTERFACES 3 - 4

3.2.1.2 ELECTRICAL INTERFACES 3 - 4

3.2.1.2.1 SUPPLY POWER 3 - 4

3.2.1.2.1.1 POWER OUTPUTS 3 - 4

3.2.1.2.1.1.1 POWER QUALITY 3 - 4

3.2.1.2.1.1.2 FAULT PROTECTION 3 - 6

TABLE OF CONTENTS − Continued

PARAGRAPH PAGE

vii

3.2.1.2.1.1.3 DELETED 3 - 7

3.2.1.3 COMMUNICATIONS 3 - 7

3.2.1.3.1 VIDEO SIGNALS 3 - 7

3.2.1.3.1.1 OPTICAL PULSE FREQUENCY MODULATION NATIONAL TELEVISION

STANDARDS COMMITTEE VIDEO SIGNAL CHARACTERISTICS 3 - 7

3.2.1.3.1.1.1 OPTICAL PFM NTSC VIDEO SIGNAL RECEIVE POWER LEVELS 3 - 7

3.2.1.3.2 SYNC AND CONTROL SIGNALS 3 - 8

3.2.1.3.2.1 OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL CHARACTERISTICS 3 - 8

3.2.1.3.2.1.1 OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL TRANSMIT

POWER LEVELS 3 - 8

3.2.1.4 ELECTRONIC INTERFACES 3 - 8

3.2.1.4.1 INSTRUMENTATION AND CONTROLS 3 - 8

3.2.1.4.1.1 HX ORU CONTROL SIGNALS 3 - 8

3.2.1.4.1.2 HX ORU INSTRUMENTATION / SENSOR SIGNALS 3 - 9

3.2.1.4.1.2.1 HX ORU VALVE POSITION SENSORS 3 - 9

3.2.1.4.1.2.2 HX ORU TEMPERATURE SENSORS 3 - 9

3.2.1.5 STRUCTURAL INTERFACE 3 - 10

3.2.1.5.1 STRUCTURAL LOADS 3 - 10

3.2.1.5.1.1 CREW INDUCED LOADS 3 - 10

3.2.1.5.2 BONDING 3 - 11

3.2.1.5.3 MATERIALS AND FINISHES 3 - 11

3.2.1.5.4 STRUCTURAL DESIGN 3 - 11

3.2.1.5.5 FRACTURE CONTROL 3 - 11

3.2.1.6 ENVIRONMENTS 3 - 12

3.2.1.6.1 ELECTROMAGNETIC EFFECTS 3 - 12

3.2.1.6.1.1 ELECTROMAGNETIC COMPATIBILITY 3 - 12

3.2.1.6.1.2 GROUNDING 3 - 12

3.2.1.6.1.3 ELECTROSTATIC DISCHARGE 3 - 12

3.2.1.6.1.4 CORONA 3 - 12

3.2.1.6.1.5 ELECTROMAGNETIC SUSCEPTIBILITY 3 - 12

3.2.2 NODE 3 MODULE REQUIREMENTS 3 - 12

3.2.2.1 INTERCONNECTING UTILITY HARDWARE 3 - 12

3.2.2.1.1 ACCESSIBILITY 3 - 12

3.2.2.1.2 ELECTRICAL CONNECTORS 3 - 12

3.2.2.1.3 ELECTRICAL UTILITY CABLE SPECIFICATIONS 3 - 13

3.2.2.1.3.1 ELECTRICAL POWER CABLE SPECIFICATIONS 3 - 13

3.2.2.1.3.2 VIDEO CABLE SPECIFICATIONS 3 - 13

3.2.2.1.3.3 HEAT EXCHANGER INSTRUMENTATION CABLES 3 - 13

3.2.2.1.4 REDUNDANT UTILITY INTERFACES 3 - 13

PARAGRAPH PAGE

viii

3.2.2.2 ELECTRICAL INTERFACES 3 - 13

3.2.2.2.1 RECEIVE POWER 3 - 13

3.2.2.2.1.1 POWER INPUTS 3 - 13

3.2.2.2.1.1.1 POWER QUALITY 3 - 13

3.2.2.2.1.1.2 SOURCE IMPEDANCE (DELETED) 3 - 14

3.2.2.2.1.2 POWER INPUTS (DELETED) 3 - 14

3.2.2.2.1.2.1 POWER QUALITY (DELETED) 3 - 14

3.2.2.2.1.2.2 SOURCE IMPEDANCE (DELETED) 3 - 14

3.2.2.3 COMMUNICATIONS 3 - 14

3.2.2.3.1 VIDEO SIGNALS 3 - 14

3.2.2.3.1.1 OPTICAL PFM NTSC VIDEO SIGNAL CHARACTERISTICS 3 - 14

3.2.2.3.1.1.1 OPTICAL PFM NTSC VIDEO SIGNAL TRANSMIT POWER LEVELS 3 - 14

3.2.2.3.2 SYNC AND CONTROL SIGNALS 3 - 14

3.2.2.3.2.1 OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL CHARACTERISTICS 3 - 14

3.2.2.3.2.1.1 OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL RECEIVE

POWER LEVELS 3 - 14

3.2.2.4 ELECTRONIC INTERFACES 3 - 15

3.2.2.4.1 INSTRUMENTATION AND CONTROLS 3 - 15

3.2.2.4.1.1 HX ORU CONTROL SIGNALS 3 - 15

3.2.2.4.1.2 HX ORU INSTRUMENTATION / SENSOR SIGNALS 3 - 15

3.2.2.4.1.2.1 HX ORU VALVE POSITION SENSORS 3 - 15

3.2.2.4.1.2.2 HX ORU TEMPERATURE SENSORS 3 - 16

3.2.2.5 STRUCTURAL INTERFACE 3 - 16

3.2.2.5.1 STRUCTURAL LOADS 3 - 16

3.2.2.5.1.1 CREW INDUCED LOADS 3 - 16

3.2.2.5.2 BONDING 3 - 16

3.2.2.5.3 MATERIALS AND FINISHES 3 - 17

3.2.2.5.4 STRUCTURAL DESIGN 3 - 17

3.2.2.5.5 FRACTURE CONTROL 3 - 17

3.2.2.6 ENVIRONMENTS 3 - 17

3.2.2.6.1 ELECTROMAGNETIC EFFECTS 3 - 17

3.2.2.6.1.1 ELECTROMAGNETIC COMPATIBILITY 3 - 17

3.2.2.6.1.2 GROUNDING 3 - 17

3.2.2.6.1.3 ELECTROSTATIC DISCHARGE 3 - 17

3.2.2.6.1.4 CORONA 3 - 17

APPENDIX

A ABBREVIATIONS AND ACRONYMS A - 1

TABLES PAGE

ix

3.1.1.5−1 LINEAR TOLERANCES 3 - 2

3.2.1.2.1.1.1−1 ELECTRICAL INTERFACE PARAMETERS 3 - 6

3.2.1.2.1.1.1−2 ELECTRICAL INTERFACE FAULT CURRENT PARAMETERS 3 - 6

3.2.1.3.1.1.1−1 OPTICAL PFM NTSC VIDEO SIGNAL RECEIVE POWER 3 - 7

3.2.1.3.2.1.1−1 OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL TRANSMIT POWER 3 - 8

3.2.1.5.1.1−1 CREW INDUCED CONNECTOR LOADS 3 - 10

3.2.1.5.1.1−2 LIMIT LOADS RELATIVE TO POINT “O” IN FIG. 3.2.1.5.1.1−1 3 - 10

3.2.2.3.1.1.1−1 OPTICAL PFM NTSC VIDEO SIGNAL TRANSMIT POWER 3 - 14

3.2.2.3.2.1.1−1 OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL RECEIVE POWER 3 - 15.

FIGURES PAGE

x

3.1.1−1 INTEGRATED TRUSS SEGMENT S0 TO NODE 3 FUNCTIONAL

INTERFACES 3 - 1

3.2.1.2−1 ITS S0 TO NODE 3 ELECTRICAL INTERFACES 3 - 5

3.2.1.2.1.1.3−1 DELETED 3 - 7

3.2.1.2.1.1.3−1 DELETED 3 - 7

3.2.1.2.1.1.3−2 DELETED 3 - 7

3.2.1.2.1.1.3−2 DELETED 3 - 7

3.2.1.2.1.1.3−3 DELETED 3 - 7

3.2.1.2.1.1.3−3 DELETED 3 - 7

3.2.1.2.1.1.3−4 DELETED 3 - 7

3.2.1.2.1.1.3−4 DELETED 3 - 7

3.2.1.2.1.1.3−5 DELETED 3 - 7

3.2.1.2.1.1.3−5 DELETED 3 - 7

3.2.1.5.1.1−1 UTILITY TRAY CLEVIS−TO−NODE 3 INTERFACE TORQUE

AND MOMENT 3 - 11

1 - 1

1.0 INTRODUCTION

1.1 PURPOSE & SCOPE

The purpose of this document is to provide definition of physical and functional interface requirements between Integrated Truss Segment (ITS) S0 and Node 3. The scope of this document is limited to the interfaces between ITS S0 and Node 3.

1.2 PRECEDENCE

In the event of conflict between SSP 41000, System Specification for the International Space Station (ISS), and the contents of this Interface Control Document (ICD), the requirements of SSP 41000 shall take precedence.

1.3 DELEGATION OF AUTHORITY

This document is prepared and maintained in accordance with SSP 30459, International Space Station Interface Plan, and jointly signed by National Aeronautics and Space Administration (NASA) and Agencia Spatiale Italiana (ASI).

2 − 1

2.0 DOCUMENTS

2.1 APPLICABLE DOCUMENTS

The following documents form part of this ICD to the extent specified herein

DOCUMENT NO. TITLE

SSP 30219 Space Station Reference Coordinate Systems Rev. H 01 June 2005 Reference Paragraph: 3.1.1.4

SSP 30233 Space Station Requirements for Materials and Processes Rev. H 06 March 1998 References Paragraphs: 3.2.1.5.3, 3.2.2.5.3

SSP 30237 Space Station Electromagnetic Emission and Susceptibility Rev. G Requirements

DCN 029. 037

03 May 2002 Reference Paragraphs: 3.2.1.6.1.5

SSP 30240 Space Station Grounding Requirements Rev. D

DCN 009, 010

31 July 2002 References Paragraphs: 3.2.1.6.1.2, 3.2.2.6.1.2

SSP 30242 Space Station Cable/Wire Design and Control Requirements Rev. F for Electromagnetic Compatibility 31 July 2002 References Paragraphs: 3.2.1.1.3, 3.2.2.1.3

SSP 30243 Space Station System Requirements for Electromagnetic Rev. G, DCN 017 Compatibility 31 July 2002 References Paragraphs: 3.2.1.6.1.1, 3.2.1.6.1.3, 3.2.1.6.1.4, 3.2.2.6.1.1

3.2.2.6.1.3, 3.2.2.6.1.4

SSP 30245 Space Station Electrical Bonding Requirements Rev F, DCN 023 03 May 2002 References Paragraphs: 3.2.1.5.2, 3.2.2.5.2

2 − 2

DOCUMENT NO. TITLE

SSP 30263:002 Remote Power Controller Module (RPCM) Standard Interface Rev. M Control Document 19 June 98 Reference Table: 3.2.1.2.1.1.1−1

SSP 30426 Space Station External Contamination Control Requirements Rev. D 21 Jan. 94 References Paragraphs: 3.2.1.5.3, 3.2.2.5.3

SSP 30558 Fracture Control Requirements for Space Station Rev. B 30 June 94 References Paragraphs: 3.2.1.5.5, 3.2.2.5.5

SSP 30559 Structural Design and Verification Requirements Rev. D 27 July 2007 References Paragraphs: 3.2.1.5.4, 3.2.2.5.4

SSP 50002 International Space Station Video Standard Rev. Basic 15 Sep. 94 References Paragraphs: 3.2.1.3.1.1, 3.2.1.3.2.1, 3.2.2.3.1.1, 3.2.2.3.2.1

SSP 50005 International Space Station Flight Crew Integration Standard Rev. E (NASA−STD−3000/T) 30 June 2006 References Paragraphs: 3.2.1.1.1, 3.2.1.5, 3.2.2.1.1, 3.2.2.5

SSQ 21635 Connectors and Accessories, Electrical, Circular, Miniature, Rev. K IVA/EVA Compatible, Space Quality, General Specification for 29 October 2002 References Paragraphs: 3.2.1.1.2, 3.2.2.1.2

SSQ 21652 Wire, Electric, Silicone Insulated, Nickel Coated Copper, Rev. F Space Quality, General Specification for 15 Jan 2000 References Paragraphs: 3.2.1.1.3.1, 3.2.2.1.3.1

SSQ 21654 Cable, Single Fiber, Multimode Space Quality, General Rev. C Specification for 03 May 1999 References Paragraphs: 3.2.1.1.3.2, 3.2.2.1.3.2

2 − 3

DOCUMENT NO. TITLE

SSQ 21656 Wire and Cable, Electrical, Fluoropolymer−Insulated Nickel Rev. D Coated Copper or Copper Alloy General Specification for 15 Jan 2000 References Paragraphs: 3.2.1.1.3.1, 3.2.1.1.3.3, 3.2.2.1.3.1, 3.2.2.1.3.3

2.2 REFERENCE DOCUMENTS

The following documents are referenced in this ICD for context and user convenience.

SSP 41000 Space Station System Specification Reference Paragraph 1.2

SSP 30459 ISS Interface Control Plan Reference Paragraph 1.3

3 - 1

3.0 INTERFACES

3.1 GENERAL

3.1.1 INTERFACE DESCRIPTION

The interfaces between ITS S0 and Node 3 consist of the connectors for the utilities. Figure 3.1.1−1 shows the functional interfaces.

Node 3ITS S0

PRIMARY POWER

SECONDARY HEAT EXCHANGER

HEAT EXCHANGER DATA

TRAY STRUCTURAL ATTACHMENT*

VIDEO *

VIDEO SYNC AND CONTROL

FIGURE 3.1.1−1 INTEGRATED TRUSS SEGMENT S0 TO NODE 3 FUNCTIONAL

INTERFACES

POWER

* − These interfaces are only scarred and do not cross the interface plane.

3.1.1.1 ITS S0 DESCRIPTION

The ITS S0 is the center truss segment of the Space Station, providing attachment of the truss to the Module pattern by means of the Module−to−Truss Structure (MTS).

3 - 2

3.1.1.2 NODE 3

The purpose of Node 3 is to act as a building block to connect the system elements; provide a pressurized passageway between berthed elements; and distribute/transfer commands and data, audio and video, electrical power, atmosphere, water, generate oxygen, and provide thermal energy to adjacent elements.

3.1.1.3 INTERFACE PLANE DESCRIPTION

The utility interface plane is between connector halves from ITS S0 jumpers and the connector halves from Node 3. Node 3 provides a scar interface for structural attachment to S0.

3.1.1.4 COORDINATE SYSTEMS

The ITS S0 coordinate system and Node 3 coordinate system are defined in SSP 30219, Space Station Reference Coordinate Systems.

3.1.1.5 TOLERANCES

Linear tolerances on English dimensions are as indicated in Table 3.1.1.5−1 unless otherwise noted. Angular tolerances are +/−0.5 degrees unless otherwise noted.

TABLE 3.1.1.5−1 LINEAR TOLERANCES

English Dimension Implied Tolerance

X.XX +/−0.03

X.XXX +/−0.010

3.1.1.6 ENGINEERING UNITS

Unless otherwise noted herein, all dimensions are in the English system of inch/pounds/seconds units.

3.1.1.7 PRE ITS S0 INTERFACE FUNCTIONS

The ITS S0 provides the following functions at the interface to Node 3:

A. Supply Primary Power

B. Supply Secondary Heat Exchanger Power

C. Supply and Receive Heat Exchanger Instrumentation Signals

D. Scar Video Sync and Control and scar Receive Video

E. Deleted

3 - 3

3.1.1.8 NODE 3 INTERFACE FUNCTIONS

Node 3 provides the following functions at the interface to the ITS S0:

A. Receive Primary Power

B. Receive Secondary Power

C. Supply and Receive Heat Exchanger Instrumentation Signals

D. Video and Video Sync Control Signals are only scarred at the Node 3 interface and do not cross over the S0 interface.

E. The Node 3 provides a scar clevis for the S0 tray. S0 no longer interfaces it’s utility tray.

3.1.2 INTERFACE RESPONSIBILITIES

ITS S0 and Node 3 shall conform to the interface controlled by this document.

3.1.2.1 RESPONSIBILITY FOR ITS S0

Boeing Huntington Beach (BHB) shall provide ITS S0.

3.1.2.2 RESPONSIBILITY FOR NODE 3

ASI/Alenia shall provide the Node 3 Module.

3.1.2.3 RESPONSIBILITY FOR UTILITY CONNECT ORS

BHB and ASI/Alenia shall be responsible for providing their respective fluid and electrical connector halves.

3.2 INTERFACE REQUIREMENTS

3.2.1 INTEGRATED TRUSS SEGMENT S0

3.2.1.1 INTERCONNECTING UTILITY HARDWARE

ITS S0 shall incorporate provisions for the connection of utilities to Node 3 during on−orbit assembly. Utility interfaces shall contain physical provisions to preclude incorrect installation of utility lines and shall not be lockwired or staked.

3.2.1.1.1 ACCESSIBILITY

Avionic connectors shall comply with SSP 50005, paragraphs 14.3, 14.4, and 14.6.4.3, requirements for accessibility by Extravehicular Activity (EVA)−suited crewmembers.

3 - 4

3.2.1.1.2 ELECTRICAL CONNECT ORS

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

3.2.1.1.3 ELECTRICAL UTILITY CABLE SPECIFICA TIONS

Cable and wire design shall be in accordance with SSP 30242.

3.2.1.1.3.1 ELECTRICAL POWER CABLE SPECIFICA TIONS

Power cables shall conform to SSQ 21652 or to SSQ 21656.

3.2.1.1.3.2 VIDEO CABLE SPECIFICA TIONS

The video interconnect cables shall comply with the requirements of SSQ 21654.

3.2.1.1.3.3 HEAT EXCHANGER INSTRUMENTATION CABLES

Heat exchanger instrumentation utility cables shall conform to SSQ 21656.

3.2.1.1.4 REDUNDANT UTILITY INTERFACES

The ITS S0 shall provide redundant utility interfaces for power distribution, and heat exchanger instrumentation.

Alternate or redundant functional paths shall be separated or protected at the interface such that a credible event which causes the loss of one functional path will not result in the loss of the alternate or redundant functional path(s).

3.2.1.2 ELECTRICAL INTERFACES

The ITS S0 to Node 3 electrical interfaces are shown in Figure 3.2.1.2−1.

3.2.1.2.1 SUPPLY POWER

The ITS S0 shall supply power to Node 3 through the power circuits specified below.

3.2.1.2.1.1 POWER OUTPUTS

The ITS S0 to Node 3 electrical interfaces shall include the circuits NODE32A, NODE34A, NODE31B, and NODE32B. Circuits ECPNODE3, ECPHTRNODE3, ECPLTNODE3, and ECPLTHTRNODE3 are scarred on both S0 and Node 3 with no connectivity between them.

3.2.1.2.1.1.1 POWER QUALITY

The steady state voltage over the interface operating current range shall be within the envelope shown in Tables 3.2.1.2.1.1.1−1 and 3.2.1.2.1.1.1−2.

3 - 5

ITS S0

NODE32A

PDGFSSRMS1NODE3(1)

NODE 3

NODE34A

PDGFSSRMS2NODE3(1)

PDGFPL1NODE3(1)

PDGFBACKUPNODE3(1)

PDGFPL2NODE3(1)

ECPHTRNODE3(2)

ECPNODE3(2)

NODE31B

NODE32B

FIGURE 3.2.1.2−1 ITS S0 TO NODE 3 ELECTRICAL INTERFACES

ECPLHTRNODE3(2)

ECPLTNODE3(2)

Notes: 1. The PDGF has been removed from Node 3. The PDGF connectors are scarred on the S0 side, but the utilities do not cross the S0 interface.

2. These connections are scarred on both the S0 and the Node 3 with no connectivity between them.

3 - 6

TABLE 3.2.1.2.1.1.1−1 ELECTRICAL INTERFACE PARAMETERS

Circuit Name Interface

Vrange (volts) Operating

Current (amps) Overcurrent Protection

Min Steady State Wire

Rating

ECPNODE3 (4) 114 to 126 0 to 1.41 3.5A RPC(2) 4.2A ECPHTRNODE3 (4) 114 to 126 0 to 0.65 3.5A RPC(2) 4.2A NODE32A 119 to 173 0 to 65 See Table

3.2.1.2.1.1.1−2 78A

NODE34A 117 to 173 0 to 65 See Table 3.2.1.2.1.1.1−2

78A

PDGFSSRMS1NODE3 (3) 116 to 126 0 to 17.7 (1) PDGFSSRMS2NODE3 (3) 116 to 126 0 to 17.7 (1) PDGFPL1NODE3 (3) 116 to 126 0 to 17.7 (1) PDGFPL2NODE3 (3) 116 to 126 0 to 17.7 (1) PDGFBACKUPNODE3 (3) 116 to 126 0 to 4.4 12A RPC(2)

ECPLTNODE3 (4) 115 to 126 0 to 2.3 3.5 RPC(2) 4.2A ECPLTHTRNODE3 (4) 115 to 126 0 to 0.73 3.5 RPC(2) 4.2A NODE31B 117 to 173 0 to 65 See Table

3.2.1.2.1.1.1−2 78A

NODE32B 117 to 173 0 to 65 See Table 3.2.1.2.1.1.1−2

78A

Notes:

(1) Protection is equivalent with SSP30263:002, Type II.

(2) Protection is equivalent with SSP30263:002, Type V.

(3) These PDGF utilities are only scarred on the S0 side and do not cross the Node 3 interface.

(4) These connectors are scarred on both S0 and Node 3 with no connectivity between them.

TABLE 3.2.1.2.1.1.1−2 ELECTRICAL INTERF ACE FAULT CURRENT PARAMETERS

Circuit Names Source Limited Maximum Fault Current

Trip Current Threshold Range

(amps)

Trip Time/Max.

Fault Duration

(msec)

NODE32A

NODE34A

NODE31B

NODE32B

No more than 4,000 amps peak surge to be limited to no more than 350 amps within 80 msec of fault onset

78.25 to 85.75 108 to 130

3.2.1.2.1.1.2 FAULT PROTECTION

ITS S0 shall provide protection as shown in Table 3.2.1.2.1.1.1−1.

3 - 7

3.2.1.2.1.1.3 DELETED

Figure 3.2.1.2.1.1.3−1 DELETED

Figure 3.2.1.2.1.1.3−2 DELETED

Figure 3.2.1.2.1.1.3−3 DELETED

Figure 3.2.1.2.1.1.3−4 DELETED

Figure 3.2.1.2.1.1.3−5 DELETED

3.2.1.3 COMMUNICATIONS

3.2.1.3.1 VIDEO SIGNALS

ITS S0 shall receive from Node 3 the signals described in the following subparagraphs.

3.2.1.3.1.1 OPTICAL PULSE FREQUENCY MODULA TION NATIONAL TELEVISION

STANDARDS COMMITTEE VIDEO SIGNAL CHARACTERISTICS

The optical Pulse Frequency Modulation (PFM) National Television Standards Committee (NTSC) video signal characteristics shall be in accordance with SSP 50002, paragraphs 3.2.1.5.4 and 3.2.1.5.5.

3.2.1.3.1.1.1 OPTICAL PFM NTSC VIDEO SIGNAL RECEIVE POWER LEVELS

The ITS S0 shall meet all transmission quality requirements with minimum average optical PFM NTSC video signal input power, at ambient temperature, provided by Table 3.2.1.3.1.1.1−1 Optical PFM NTSC Video Signal Receive Power at each signal interface.

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁTABLE 3.2.1.3.1.1.1−1 OPTICAL PFM NTSC VIDEO SIGNAL RECEIVE POWER

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁSource to Destination

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁITS S0 Input ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVideo Source

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁDestination

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOptical Power (dBm) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁNode 3 PDGF (1)

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVSW 3

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ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁNode 3 PDGF (1)

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVSW 2

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ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁNode 3 PDGF (1)

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVSW 1

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ−20.1

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁExt Port #14 (2)

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVSW 3

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ−20.0

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁNotes:

(1) These Utilities are only scarred at the S0 and do not cross the Node 3 interface.

(2) These connectors are scarred on both the S0 and Node 3 with no connectivity between them.

3 - 8

3.2.1.3.2 SYNC AND CONTROL SIGNALS

The ITS S0 shall transmit to Node 3 the signals described in the following subparagraphs.

3.2.1.3.2.1 OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL CHARACTERISTICS

The optical PFM NTSC sync and control signal characteristics shall be in accordance with SSP 50002, paragraphs 3.2.1.5.4 and 3.2.1.5.5.

3.2.1.3.2.1.1 OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL TRANSMIT POWER

LEVELS

The minimum average optical PFM NTSC sync and control signal transmit power, measured at ambient temperature, transmitted by the ITS S0 shall meet Table 3.2.1.3.2.1.1−1 at each signal interface.

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁTABLE 3.2.1.3.2.1.1−1 OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL

TRANSMIT POWER

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁSource to Destination

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ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁDestination

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOptical Power (dBm)

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVSW 1

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁNode 3 PDGF (1)

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ−19.0

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVSW 2

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁNode 3 PDGF (1)

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ−19.0

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVSW 3

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁExt Port #14 sync (2)

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ−19.3

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁNotes:

(1) These Utilities are only scarred at S0 and do not cross the Node 3 Interface.

(2) These connectors are scarred on both S0 and Node 3 with no connectivity between them.

3.2.1.4 ELECTRONIC INTERFACES

3.2.1.4.1 INSTRUMENTATION AND CONTROLS

The ITS S0 to Node 3 interface shall provide instrumentation and control signals for two (2) Heat Exchangers (HX) Orbital Replacement Units (ORUs) as defined in the following paragraphs.

3.2.1.4.1.1 HX ORU CONTROL SIGNALS

All HX ORU control signals are conditioned second power. The maximum voltage level associated with these signals is 126 Volts DC. Short circuit current protection shall be provided

3 - 9 by ITS S0 for each control signal. The short circuit current for each control signal shall not exceed 3.0 Amps DC.

Loop A HX ORU’s and Loop B HX ORU’s are redundant utility interfaces. Routing and separation of associated wiring shall meet the requirements of paragraph 3.2.1.1.4.

ITS SO shall provide 4 signals to command valves that control Node 3 Loop A HX ORU. These include (1) Command the Bypass Valve to NORMAL Flow, (2) Command the Bypass Valve to Bypass Flow, (3) Command the Isolation/Relief Valve to Open, and (4) Command the Isolation/Relief valve to CLOSE.

ITS SO shall provide 4 signals to command valves that control Node 3 Loop B HX ORU. These include (1) Command the Bypass Valve to NORMAL Flow, (2) Command the Bypass Valve to Bypass Flow, (3) Command the Isolation/Relief Valve to Open, and (4) Command the Isolation/Relief valve to CLOSE.

3.2.1.4.1.2 HX ORU INSTRUMENTATION / SENSOR SIGNALS

3.2.1.4.1.2.1 HX ORU VALVE POSITION SENSORS

ITS S0 shall provide excitation voltage required for monitoring each Node 3 HX ORU limit switch as described below. The maximum excitation voltage provided by ITS S0 when switch contacts are OPEN shall be 29 volts DC. ITS S0 shall limit the current to closed switch contacts to 0.2 mA maximum.

Loop A HX ORU and Loop B HX ORU are redundant utility interfaces. Routing and separation of associated wiring shall meet the requirements of paragraph 3.2.1.1.4.

ITS S0 shall receive 4 signals from Node 3 for monitoring Node 3 Loop A HX ORU valve status. Closed contacts on limit switches located in the Node 3 Loop A HX ORU indicate (1) the Bypass Valve is in full NORMAL position. (2) the Bypass valve is in full Bypass position. (3) the Isolation/Relief Valve is in fully OPEN position, and (4) the Isolation/Relief Valve is in fully CLOSED position.

ITS S0 shall receive 4 signals from Node 3 for monitoring Node 3 Loop B HX ORU valve status. Closed contacts on limit switches located in the Node 3 Loop B HX ORU indicate (1) the Bypass Valve is in full NORMAL position. (2) the Bypass valve is in full Bypass position. (3) the Isolation/Relief Valve is in fully OPEN position, and (4) the Isolation/Relief Valve is in fully CLOSED position.

3.2.1.4.1.2.2 HX ORU TEMPERATURE SENSORS

ITS S0 shall provide excitation for two temperature measurements listed below. Each measurement is defined as low level analog 1.0 mA current loop configured for a standard Resistance Temperature Device (RTD) sensor.

Sensors for Loop A HX ORU and Loop B HX ORU as defined below are redundant utility interfaces. Routing and separation of wiring shall meet the requirements of paragraph 3.2.1.1.4.

3 - 10

ITS S0 shall receive 1 signal from Node 3 for monitoring Node 3 Loop A HX ORU ammonia outlet temperature.

ITS S0 shall receive 1 signal from Node 3 for monitoring Node 3 Loop B HX ORU ammonia outlet temperature.

3.2.1.5 STRUCTURAL INTERFACE

Interfaces requiring accessibility by EVA suited crew members shall comply with paragraphs 14.3, 14.4, 14.5.3, and 14.6.2.3.A,C,E,G of SSP 50005.

3.2.1.5.1 STRUCTURAL LOADS

3.2.1.5.1.1 CREW INDUCED LOADS

The connector interfaces between the ITS S0 and the Hab shall be designed to withstand the crew induced loads listed in Table 3.2.1.5.1.1−1. The crew induced limits loads at the interface of the utility tray to Node 3 clevis shall be as shown in Table 3.2.1.5.1.1−2. These loads are applied at the centroid of the clivis pin shown in Figure 3.2.1.5.1.1−1.

TABLE 3.2.1.5.1.1−1 CREW INDUCED CONNECTOR LOADS

Description of

Load Limit Load Type of Load Direction of

Load Comments

Inadvertent kick/bump

125 lbf Quasi−Static concentrated load over 0.5 inch diameter circular area

Any direction Accidental impact applied to hardware near (within 24 in.) of translation paths or work sites.

EVA handling load

45 lbf (35 in−lbf for connector panels for mate/demate of connector)

Quasi−static concentrated load over 1.25 inch radius circular area

Any direction This load can be applied anytime to any hardware by the EVA crewmember when in a foot restraint.

All hardware must be designed to this load as a minimum. This force would be applied by the palm of the glove, tip of a boot or knee.

TABLE 3.2.1.5.1.1−2 LIMIT LOADS RELA TIVE TO POINT “O” IN FIG. 3.2.1.5.1.1−1

Fx 186 lbs

Fy 213 lbs

Fz 213 lbs

Mx 4363 in−lbs

My 4364 in−lbs

Mz 0 in−lbs

3 - 11

Z

Y

Scarred Node 3 structural Interface Surface

Point ”O” (located at the center of the clevis pin)

The X axis extends from Point ”O” into the page

FIGURE 3.2.1.5.1.1−1 UTILITY TRAY CLEVIS−TO−NODE 3 INTERFACE TORQUE AND

MOMENT

3.2.1.5.2 BONDING

The ITS S0 to Node 3 umbilical interface shall meet the requirements of SSP 30245. Space Station Electrical Bonding requirements. The on−orbit bonding shall meet the requirements for a Class H Bond when permanently mated.

3.2.1.5.3 MATERIALS AND FINISHES

Materials and finishes at the hardware interface shall be compatible with the environment and with interfacing hardware per the requirements of SSP 30233, paragraph 4.5.4.

Materials located near sensitive hardware such as radiators and window cavities shall have lower outgassing rates per the requirements of SSP 30426, paragraph 3.2.2.3.

3.2.1.5.4 STRUCTURAL DESIGN

Structural design shall meet the requirements of SSP 30559.

3.2.1.5.5 FRACTURE CONTROL

The ITS S0 interfacing hardware shall meet the fracture control requirements of SSP 30558.

3 - 12

3.2.1.6 ENVIRONMENTS

3.2.1.6.1 ELECTROMAGNETIC EFFECTS

3.2.1.6.1.1 ELECTROMAGNETIC COMPATIBILITY

The ITS S0 to Node 3 interface shall meet the requirements of SSP 30243, Space Station Systems Requirements for Electromagnetic Compatibility.

3.2.1.6.1.2 GROUNDING

The ITS S0 to Node 3 interface shall meet the requirements of SSP 30240, Space Station Grounding Requirements.

3.2.1.6.1.3 ELECTROSTATIC DISCHARGE

The ITS S0 to Node 3 interface shall meet the requirements of SSP 30243.

3.2.1.6.1.4 CORONA

The ITS S0 to Node 3 interface shall meet the requirements of SSP 30243.

3.2.1.6.1.5 ELECTROMAGNETIC SUSCEPTIBILITY

The ITS S0 to Node 3 interface shall meet the requirements of SSP 30237.

3.2.2 NODE 3 MODULE REQUIREMENTS

3.2.2.1 INTERCONNECTING UTILITY HARDWARE

Node 3 shall incorporate provisions for the connection of utilities to ITS S0 during on−orbit assembly. Utility interfaces shall contain physical provisions to preclude incorrect installation of utility lines and shall not be lockwired or staked.

3.2.2.1.1 ACCESSIBILITY

Avionic connectors shall comply with SSP 50005, paragraphs 14.3, 14.4, and 14.6.4.3, requirements for accessibility by EVA−suited crewmembers.

3.2.2.1.2 ELECTRICAL CONNECT ORS

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

3 - 13

3.2.2.1.3 ELECTRICAL UTILITY CABLE SPECIFICA TIONS

Cable and wire design shall be in accordance with SSP 30242.

3.2.2.1.3.1 ELECTRICAL POWER CABLE SPECIFICA TIONS

Power cables shall conform to SSQ 21652 or SSQ 21656.

3.2.2.1.3.2 VIDEO CABLE SPECIFICA TIONS

The video interconnect cables shall comply with the requirements of SSQ 21654.

3.2.2.1.3.3 HEAT EXCHANGER INSTRUMENTATION CABLES

Heat exchanger instrumentation utility cables shall conform to SSQ 21656.

3.2.2.1.4 REDUNDANT UTILITY INTERFACES

Node 3 shall provide redundant utility interfaces for power distribution, and heat exchanger instrumentation. Alternate or redundant functional paths shall be separated or protected at the interface such that a credible event which causes the loss of one functional path will not result in the loss of the alternate or redundant functional path(s).

3.2.2.2 ELECTRICAL INTERFACES

The Node 3 to ITS S0 electrical interfaces are shown in Figure 3.2.1.2−1.

3.2.2.2.1 RECEIVE POWER

Node 3 shall provide the capability to receive power from ITS S0 through the power circuits specified below.

3.2.2.2.1.1 POWER INPUTS

The ITS S0 to Node 3 electrical interfaces shall include the circuits NODE31B, NODE32B, NODE34A, ECPNODE3, ECPHTRNODE3, ECPLTNODE3, ECPLTHTRNODE3, and

NODE32A.

3.2.2.2.1.1.1 POWER QUALITY

The operating current range shall be within the limits shown in Table 3.2.1.2.1.1.1−1 for all steady state voltages within the envelope shown in this Table.

3 - 14

3.2.2.2.1.1.2 SOURCE IMPEDANCE (DELETED)

3.2.2.2.1.2 POWER INPUTS (DELETED)

3.2.2.2.1.2.1 POWER QUALITY (DELETED)

3.2.2.2.1.2.2 SOURCE IMPEDANCE (DELETED)

3.2.2.3 COMMUNICATIONS

3.2.2.3.1 VIDEO SIGNALS

Node 3 shall transmit to the ITS S0 the signals described in the following subparagraphs.

3.2.2.3.1.1 OPTICAL PFM NTSC VIDEO SIGNAL CHARACTERISTICS

The optical PFM NTSC video signal characteristics shall be in accordance with SSP 50002, paragraphs 3.2.1.5.4 and 3.2.1.5.5.

3.2.2.3.1.1.1 OPTICAL PFM NTSC VIDEO SIGNAL TRANSMIT POWER LEVELS

The minimum average optical PFM NTSC video signal transmit power, measured at ambient temperature, transmitted by Node 3 shall meet Table 3.2.2.3.1.1.1−1 at each signal interface.

TABLE 3.2.2.3.1.1.1−1 OPTICAL PFM NTSC VIDEO SIGNAL TRANSMIT POWER

Source to Destination Node 3 Output Video Source Destination Optical Power (dBm)

Ext Port #14 VSW 3 −18.3

3.2.2.3.2 SYNC AND CONTROL SIGNALS

Node 3 shall receive from the ITS S0 the signals described in the following subparagraphs.

3.2.2.3.2.1 OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL CHARACTERISTICS

The optical PFM NTSC sync and control signal characteristics shall be in accordance with SSP 50002, paragraphs 3.2.1.5.4 and 3.2.1.5.5.

3.2.2.3.2.1.1 OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL RECEIVE POWER

LEVELS

Node 3 shall meet all transmission requirements with minimum average optical PFM NTSC sync and control signal receive power, at ambient temperature, provided by Table 3.2.2.3.2.1.1−1 at each signal interface.

3 - 15

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁTABLE 3.2.2.3.2.1.1−1 OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL RECEIVE

POWER

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁSource to Destination

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁNode 3 Input

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVideo Source

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁDestination

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOptical Power (dBm) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVSW 3

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁExt Port #14 sync

ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ−20.9

3.2.2.4 ELECTRONIC INTERFACES

3.2.2.4.1 INSTRUMENTATION AND CONTROLS

The Node 3 to ITS S0 interface shall provide instrumentation and control for two (2) HX ORU’s which are located in Node 3 and are defined as follows:

3.2.2.4.1.1 HX ORU CONTROL SIGNALS

All HX ORU Control Signals are conditioned secondary power. The maximum voltage level associated with these signals is 126 volts DC. Short circuit current protection shall be provided by ITS S0 for each control signal. The short circuit current for each control signal shall not exceed 3.0 Amps DC.

Loop A HX ORU’s and Loop B HX ORU’s are redundant utility interfaces. Routing and separation of associated wiring shall meet the requirements of paragraph 3.2.2.1.4.

The Node 3 shall receive 4 signals to command valves that control Node 3 Loop A HX ORU.

These include (1) Command the Bypass Valve to NORMAL Flow, (2) Command the Bypass Valve to Bypass Flow, (3) Command the Isolation/Relief Valve to Open, and (4) Command the Isolation/Relief valve to CLOSE.

The Node 3 shall receive 4 signals to command valves that control Node 3 Loop B HX ORU.

These include (1) Command the Bypass Valve to NORMAL Flow, (2) Command the Bypass Valve to Bypass Flow, (3) Command the Isolation/Relief Valve to Open, and (4) Command the Isolation/Relief valve to CLOSE.

3.2.2.4.1.2 HX ORU INSTRUMENTATION / SENSOR SIGNALS

3.2.2.4.1.2.1 HX ORU VALVE POSITION SENSORS

Node 3 shall receive excitation voltage required for monitoring each Node 3 HX ORU limit switch as described below. The maximum excitation voltage provided by ITS S0 when switch contacts are OPEN shall be 29 volts DC. ITS S0 shall limit the current to closed switch contacts to 0.2 mA maximum.

Loop A HX ORU and Loop B HX ORU are redundant utility interfaces. Routing and separation of associated wiring shall meet the requirements of paragraph 3.2.1.1.4.

3 - 16

Node 3 shall provide 4 signals for monitoring Node 3 Loop A HX ORU valve status. Closed contacts on limit switches located in the Node 3 Loop A HX ORU indicate (1) the Bypass Valve is in full NORMAL position. (2) the Bypass valve is in full Bypass position. (3) the Isolation/Relief Valve is in fully OPEN position, and (4) the Isolation/Relief Valve is in fully CLOSED position.

Node 3 shall provide 4 signals for monitoring Node 3 Loop B HX ORU valve status. Closed contacts on limit switches located in the Node 3 Loop B HX ORU indicate (1) the Bypass Valve is in full NORMAL position. (2) the Bypass valve is in full Bypass position. (3) the Isolation/Relief Valve is in fully OPEN position, and (4) the Isolation/Relief Valve is in fully CLOSED position.

3.2.2.4.1.2.2 HX ORU TEMPERATURE SENSORS

Node 3 shall receive excitation for two temperature measurements listed below. Each measurement is defined as low level analog 1.0 mA current loop configured for a standard RTD sensor.

Sensors for Loop A HX ORU and Loop B HX ORU as defined below are redundant utility interfaces. Routing and separation of wiring shall meet the requirements of paragraph 3.2.1.1.4.

Node 3 shall provide 1 signal for monitoring Node 3 Loop A HX ORU ammonia outlet temperature.

Node 3 shall provide 1 signal for monitoring Node 3 Loop B HX ORU ammonia outlet temperature.

3.2.2.5 STRUCTURAL INTERFACE

Node 3 shall provide structural attachment of the umbilical tray from ITS S0. Interfaces requiring accessibility by EVA suited crew members shall comply with paragraphs 14.3, 14.4, 14.5.3, and 14.6.2.3 A,C,E,G of SSP 50005.

3.2.2.5.1 STRUCTURAL LOADS

3.2.2.5.1.1 CREW INDUCED LOADS

The connector interfaces between the ITS S0 and the Hab shall be designed to withstand the crew induced loads listed in Table 3.2.1.5.1.1−1. The crew induced limit loads at the interface of the utility tray to Node 3 clevis shall be shown in Table 3.2.1.5.1.1−2. These loads are applied at the centroid of the clevis pins shown in Figure 3.2.1.5.1.1−1.

3.2.2.5.2 BONDING

The Node 3 to the ITS S0 umbilical interface shall meet the requirements of SSP 30245. Space Station Electrical Bonding requirements. The on−orbit bonding shall meet the requirements for a Class H Bond when permanently mated.

3 - 17

3.2.2.5.3 MATERIALS AND FINISHES

Materials and finishes at the hardware interface shall be compatible with the environment and with interfacing hardware per the requirements of SSP 30233, paragraph 4.5.4.

Materials located near sensitive hardware such as radiators and window cavities shall have lower outgassing rates per the requirements of SSP 30426, paragraph 3.2.2.3.

3.2.2.5.4 STRUCTURAL DESIGN

Structural design shall meet the requirements of SSP 30559.

3.2.2.5.5 FRACTURE CONTROL

The Node 3 interfacing hardware shall meet the fracture control requirements of SSP 30558.

3.2.2.6 ENVIRONMENTS

3.2.2.6.1 ELECTROMAGNETIC EFFECTS

3.2.2.6.1.1 ELECTROMAGNETIC COMPATIBILITY

The Node 3 to ITS S0 interface shall meet the requirements of SSP 30243, Space Station Systems Requirements for Electromagnetic Compatibility.

3.2.2.6.1.2 GROUNDING

The Node 3 to ITS S0 interface shall meet the requirements of SSP 30240, Space Station Grounding Requirements

3.2.2.6.1.3 ELECTROSTATIC DISCHARGE

The Node 3 to ITS S0 interface shall meet the requirements of SSP 30243.

3.2.2.6.1.4 CORONA

The Node 3 to ITS S0 interface shall meet the requirements of SSP 30243.

A - 1

APPENDIX A ABBREVIA TIONS AND ACRONYMS

A.1 ABBREVIA TIONS AND ACRONYMS

A amperes amp ampere

ASI Agencia Spatiale Italiana

BHB Boeing Huntington Beach

DC/dc Direct Current dBm decibels referenced to one Milliwatt

EMC Electromagnetic Compatibility

EVA Extravehicular Activity

Ext External

GPS Global Positioning Satellite hr Hour

HX Heat Exchanger

Hz Hertz

ICD Interface Control Document

ICWG Interface Control Working Group in inch in−lbs Inch−Pounds

ISS International Space Station

ITS Integrated Truss Segment

IVA Intravehicular Activity lbf pounds force lbs pounds m milli mA milliAmperes

A - 2

ABBREVIATIONS AND ACRONYMS − Continued msec millisecond

MTS Module−to−Truss Structure

NASA National Aeronautics and Space Administration

NTSC National Television Standards Committee

ORU Orbital Replacement Unit

PDGF Power Data Grapple Fixture

PFM Pulse Frequency Modulation

PL Payload

RTD Resistance Temperature Device

RPC Remote Power Controller/Converter

RPCM Remote Power Controller Module sec second

S0 Segment 0

SSP Space Station Program

SSQ Space Station Quality

SSRMS Space Station Remote Manipulator System

STD Standard

TBD To be determined

USOS United States On−Orbit Segment Specification

V volt(s)

VSW Video Switch