SSP_41165-RevN.docx

Segment Specification for the Japanese Experiment Module

International Space Station Program

Revision N

July 2018

EAR 99. This document contains data within the purview of the U.S. Export Administration Regulations (EAR), 15 CFR 730-774, and is export controlled. The document may be used only in the International Space Station (ISS) program to fulfill responsibilities of the Parties or of a Cooperating Agency of an ISS Partner in furtherance of the ISS Intergovernmental Agreement. Re-transfer or disclosure to, or use by, any persons other than citizens of ISS Program International Partner countries, or use for any other purpose, requires prior U.S. Government authorization.

National Aeronautics and Space Administration International Space Station Program Johnson Space Center Houston, Texas Contract No.: NNJ12GA46C

SSP 41165

Revision N

REVISION AND HISTORY

REVISION AND HISTORY

REVISION AND HISTORY

REVISION AND HISTORY

REVISION AND HISTORY

REVISION AND HISTORY

REVISION AND HISTORY

REVISION AND HISTORY

The following SCN numbers have been cancelled. The SCNs were never created and will never be released. The reason for these cancellations is that the content of the SSCNs has been incorporated into Revision M.

SCN 209 (SSCN 011525)

SCN 210 (SSCN 008942)

SCN 211 (SSCN 012037)

SCN 212 (SSCN 011028)

SCN 213 (SSCN 011768)

Incorporates SSCNs 008942, 011028, 011525, 011768, 012037, and 012743.

08-26-11

The following SCN numbers have been cancelled. The SCNs were never created and will never be released. The reason for these cancellations is that the content of the SSCNs has been incorporated into Revision N.

SCN 214 (SSCN 012713)

SCN 215 (SSCN 012524)

SCN 216 (SSCN 012906)

SCN 217 (SSCN 012597)

Program Release Incorporates SSCNs 012447, 012524, 012597, 012662, 012713, 012906, 012929, 013515, 013573, 013845, 015485, 015491,and 015608.

01-18-19

SSP 41165

Revision N

PREFACE

segment specification for the japanese experiment module This SSP 41165, Segment Specification establishes the performance and design requirements for the Japanese Experiment Module (JEM). Any changes to this document will be approved bilaterally by the National Aeronautics and Space Administration (NASA) and the Japan Aerospace Exploration Agency (JAXA) Program Managers. This document is under the control of the Space Station Control Board.

SEE DIRECTIVE APPROVAL

Kirk A. Shireman ISS Program Manager National Aeronautics and Space Administration

Date

Fumiya Tsutsui ISS Program Manager Japan Aerospace Exploration Agency

Date i

INTERNATIONAL SPACE STATION PROGRAM

segment specification for the Japanese Experiment Module

CONCURRENCE

july 2018

MAPI OP

book coordinator/dqa representative org

/s/ Gregg D. Singer

6/27/18 signature

DATE

NASA OM

nasa icwg chair

ORG

/s/ Walter J. Lueke

6/27/18

SIGNATURE

DATE

ii

TABLE OF CONTENTS

APPENDIX

TABLE

FIGURE

xiii

SCOPE

This specification establishes the performance and design requirements for the JEM. This specification has been developed using SSP 41171, Preparation of Program-Unique Specifications (a tailored version of MIL-STD-490, Specification Practices), as a guide for a type A System Segment Specification. Sections 1 and 3.1 are for informational purposes only and are not binding between NASA and JAXA. Documents listed in section 2 are applicable to JAXA only to the extent that they are referenced in section 3.

The paragraph headers in 3.2.1 are based on the functional decomposition allocations to the JEM in the International Space Station (ISS) System Specification. The requirements in section 3.2.1 define the performance of the JEM. Requirements in sections 3.2.2 through 3.6 are constraints with which the JEM must comply. The performance requirements herein are applicable during nominal operations only and do not account for maintenance or contingency events unless otherwise addressed.

Identification.

Not applicable.

System overview.

The JEM is a facility developed by JAXA for the purpose of supporting research and development experiments in a microgravity environment in earth orbit as a segment of the Space Station. The JEM supports internally and externally mounted user payloads, provides pressurized and unpressurized logistics support, and remote manipulation of external items.

applicable DOCUMENTS Paragraphs which reference documents identified with asterisks below are not applicable until JAXA review and concurrence.

Government documents.

Specifications, standards, and handbooks.

The following specifications, standards, and handbooks of the exact issue shown form a part of this specification to the extent specified herein. In the event of a conflict between the documents referenced herein and the contents of this specification, the contents of this specification shall be considered a superseding requirement.

SPECIFICATIONS

FEDERAL

None

MILITARY

None

STANDARDS

FEDERAL

None

MILITARY

MIL-STD-1553B

Rev. B Notice 2 September 8, 1986 Digital Time Division Command/Response Multiplex Data Bus (Reference paragraphs 3.2.2.9, 3.3.19, 3.3.21)

MIL-STD-490

Rev. A June 4, 1985 Specification Practices (Reference paragraph 1.0)

HANDBOOKS

FEDERAL

None

MILITARY

None

(Unless otherwise indicated, copies of United States (U.S.) federal and military specifications, standards, and handbooks are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.)

Other government documents, drawings, and publications.

The following other government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the exact issue shown applies to this segment specification.

OTHER GOVERNMENT DOCUMENTS

NASA

CR-99050

Revision C November 27, 1995 Electrical, Electronic and Electromechanical Parts Management and Implementation Plan for Japanese Experiment Module (JEM) (Reference paragraph 2.4)

CR-99117

Revision B August 1995 Japanese Experiment Module (JEM) Requirements for Materials and Processes (Reference paragraph 2.4)

ICD-A-21370-PM

Revision Basic + Change Packages 1 - 5 October 31, 2007 Shuttle Orbiter/JEM PM/RMS Cargo Element Interface (Reference paragraphs 3.1.5.1.4, 3.2.2.3, 3.3.11.1, 3.3.11.3, 3.3.11.3.1, 3.3.11.3.2, B3.3.11.1, B3.3.11.3)

ICD-A-21433-PS

Revision Basic + Change Packages 1-12 September 19, 2007 Shuttle Orbiter/Japanese Experiment Module (JEM-PS) Cargo Element Interfaces (Reference paragraphs 3.1.5.1.4, 3.2.2.3, 3.3.11.1, 3.3.11.3, 3.3.11.3.1, 3.3.11.3.2, B3.3.11.1, B3.3.11.3)

ICD-A-21434-EF

Revision Basic February 1, 2008 Shuttle Orbiter/JEM-EF Cargo Element Interface (Reference paragraphs 3.1.5.1.4, 3.2.2.3, 3.3.11.1, 3.3.11.3, 3.3.11.3.1, 3.3.11.3.2, B3.3.11.1, B3.3.11.3)

ICD-A-21434-ES

Revision Basic February 1, 2008 Shuttle Orbiter/Japanese Experiment Module (JEM-ES) Cargo Element Interface (Reference paragraphs 3.1.5.1.4, 3.2.2.3, 3.3.11.1, 3.3.11.3, 3.3.11.3.1, 3.3.11.3.2, B3.3.11.1, B3.3.11.3)

ICD-2-19001

(NSTS 07700 Volume XIV, Attachment 1) Rev. L January 15, 1998 Shuttle Orbiter/Cargo Standard Interfaces (Reference paragraph 3.3.6.6.2, 3.3.6.13.5.4, 3.3.6.13.6)

ICD-3-60060

Rev. Basic June 24, 1995 Manual Pressure Equalization Valve Sampling Adapter (External) ICD (Reference paragraphs 3.1.5.1.7, 3.2.2.12.1)

ICD-3-60067

Rev. Basic March 12, 1996 Manual Pressure Equalization Valve Sampling Adapter (Internal) ICD (Reference paragraphs 3.1.5.1.8, 3.2.2.12.2)

JSC 26895

Revision Baseline 28 October 1997 Guidelines for Assessing the Toxic Hazard of Spacecraft Chemicals and Test Materials (Reference paragraph 3.3.3)

JSC 63828

Revision C October 2010 Bio-Safety Review Board Operations and Requirements Document (Reference paragraph 3.3.3)

JSC 64825

Revision Baseline 9 July 2009 Guidelines for Assessing the Flammability Hazard of Spacecraft Chemicals and Test Materials (Reference paragraph 3.3.3)

KHB 1700.7

Revision B September 30, 1992 Space Shuttle Payload Ground Safety Handbook (Reference paragraph 3.3.6.14)

NASDA-ESPC-2900

Rev. B March 28, 2016 JEM Payload Accommodation Handbook - Volume 3 Exposed Facility/Payload Standard Interface Control Document (Reference paragraph 3.1.5.1.5.2)

NASDA-ESPC-840

Rev. H Nov. 25, 1999 Japanese Experiment Module (JEM) System Specification (Reference paragraph 3.7.1.3)

NHB 8060.1

Rev. C April 2, 1991 Flammability, Odor, Offgassing, and Compatibility Requirements and Test Procedures for Materials in Environments that Support Combustion (Reference Figure 4)

NSTS 07700, Volume XIV, Appendix 7 Rev. J, CN 1, CN 2 April 19, 2000 System Description and Design Data - Extravehicular Activities (Reference paragraphs 3.3.6.12.3.1, 3.3.10.4)

NSTS 14046

Rev. D July 1997 Payload Verification Requirements (Reference paragraph 3.2.7)

NSTS 37329

Rev. B, Change 3 October 18, 2004 Structural Integration Analyses Responsibility Definition for Space Shuttle Vehicle and Cargo Element Developers (Reference paragraph 3.3.10.5)

SSP 30219

Rev. J 1 May 2008 Space Station Reference Coordinate Systems (Reference paragraphs 3.2.1.1.8.1, 3.2.2.8, 3.2.2.11, Table VI, VII, XXIII)

SSP 30233

Rev. F, DCN (SSCN 7292, SSCN 9111) March 6, 1998 Space Station Requirements for Materials and Processes (Reference paragraph 3.3.1.3, 3.3.1.3.1)

SSP 30243

Rev. E, DCN 003, 005, 007, 014, (SSCN 10915) June 9, 1998 Space Station Requirements for Electromagnetic Compatibility (Reference paragraph 3.3.2)

SSP 30245

Rev. E, DCN 019, (SSCN 6154), (SSCN 7474), 030, (SSCN 10866), (SSCN 10915) October 15, 1999 Space Station Electrical Bonding Requirements (Reference paragraph 3.3.11.1)

SSP 30256:001

Rev. J October 17, 2012 Extravehicular Activity (EVA) Standard Interface Control Document (Reference paragraphs 3.2.2.6, 3.5.1.1)

SSP 30312

Rev. H, DCN 002 November 22, 1999 Electrical, Electronic, and Electromechanical (EEE) and Mechanical Parts Management and Implementation Plan for Space Station Program (Reference paragraphs 3.3.1.4, 3.3.6.8.1.2)

SSP 30420

Rev. B June, 1993 Space Station Electromagnetic, Ionizing Radiation, and Plasma Environment Definition and Design Requirements (Reference paragraph 3.2.6.5)

SSP 30423

Rev. H January 15, 2000 Space Station Approved Electrical, Electronic and Electromechanical Parts List (Reference paragraph 3.3.20.1)

SSP 30425

Rev. B February 8, 1994 Space Station Program Natural Environment Definition for Design (Reference paragraphs 3.2.6.2, 3.2.6.4, 3.2.6.5, 3.2.6.7, 3.2.6.8, 3.2.6.9)

SSP 30426

Rev. D, DCN 001 January 21, 1994 Space Station External Contamination Control Requirements (Reference paragraphs 3.2.6.3, 3.3.15.2)

SSP 30482 Volume 1 Rev. C July 7, 1997 Electric Power Specifications and Standards Volume 1: EPS Electrical Performance Specifications (Reference paragraph 3.2.1.1.1.32, B.3.2.1.1.1.32)

SSP 30482 Volume 2 Rev. A, DCN 001, 002, 003, 004 January, 1994 Electric Power Specifications and Standards Volume 2: Consumer Constraints (Reference paragraphs 3.2.1.1.1.32, B.3.2.1.1.1.32)

SSP 30512

Rev. C June 3, 1994 Space Station Ionizing Radiation Design Environment (Reference paragraph 3.2.6.6)

SSP 30558

Rev. C August 24, 2001 Fracture Control Requirements for Space Station (Reference paragraphs 3.3.6.4.1, 3.3.10.1)

SSP 30559

Rev. C, DCN (SSCN 9111) September 29, 2000 Structural Design and Verification Requirements (Reference paragraph 3.3.10.1)

SSP 30560

Rev. Basic June, 1991 Glass, Window, and Ceramic Structural Design and Verification Requirements (Reference paragraph 3.3.10.1)

SSP 30573

Rev. E December 2, 2009 Space Station Program Fluid Procurement and Use Control Specification (Reference paragraph 3.3.12)

SSP 30575

Rev. E April 2007 Space Station Interior and Exterior Operational Location Coding System (Reference paragraph 3.3.7.3)

SSP 41002

Current Issue International Standard Payload Rack to NASA/ESA/JAXA Modules Interface Control Document (Reference Table X)

SSP 41015, Part 1 Revision G

IRN 41015-0004, 0014

September 23, 2005 Common Hatch And Mechanisms To Pressurized Elements Interface Control Document Part 1 (Reference paragraph 3.3.11.6)

SSP 41151

Current Issue Interface Requirements Document United States On-orbit Segment to Japanese Experiment Module (Reference paragraphs 3.1.5.1.1, 3.1.5.1.3, 3.2.1.1.1.5, 3.2.1.1.1.15, 3.2.1.1.1.16, 3.2.1.1.1.32, 3.2.1.1.1.34, 3.2.1.1.1.35, 3.2.1.1.1.42, 3.2.1.1.1.43, 3.2.1.1.1.44, 3.2.1.1.1.45, 3.2.1.1.1.51, 3.2.1.1.1.52, 3.2.2.9, 3.2.2.13.1, 3.2.2.13.2, 3.2.2.15, 3.2.2.16, 3.2.4.8.5, Tables VIII, IX, X)

SSP 41151

Appendix D Current Issue United States On-orbit Segment to Japanese Experiment Module Interface Requirements Document Appendix D Software Interfaces (Reference paragraphs 3.2.1.1.1.13, 3.2.1.1.1.14, 3.2.1.1.1.16, 3.2.1.1.1.17, 3.2.1.1.1.21, 3.2.1.1.1.22, 3.2.1.1.1.52, 3.2.1.1.1.53, 3.2.1.1.8.1, 3.3.19, 3.3.21)

SSP 41152

Current Issue Interface Requirements Document International Standard Payload Rack (ISPR) (Reference paragraphs 3.1.5.1.5.1, 3.2.1.1.1.23, 3.2.1.1.1.24, 3.2.1.1.1.25, 3.2.1.1.1.26, 3.2.1.1.1.27, 3.2.1.1.1.28, 3.2.1.1.1.29, 3.2.2.4, 3.2.2.9, 3.3.24, Tables III, IX)

SSP 41171

Rev. B September 7, 1998 Preparation of Program-Unique Specifications (Reference paragraph 1.0)

SSP 42000

Current Issue United States On-orbit Segment to Japanese Experiment Module Interface Control Document (Reference Table X)

SSP 42004, Part I Current Issue Mobile Servicing System (MSS) to User (Generic) Interface Control Document Part I (Reference paragraphs 3.1.5.1.3, 3.3.11.3.1, 3.3.11.3.2)

SSP 50005

Rev. E, DCN (SSCN 012447), DCN (SSCN 012662), DCN (SSCN 012929) June 30, 2006 International Space Station Flight Crew Integration Standard (NASA-STD-3000/T) (Reference paragraphs 3.2.1.1.1.7, 3.2.1.1.1.15, 3.2.1.1.1.16, 3.2.1.1.1.18, 3.2.2.7, 3.3.3, 3.3.3.2, 3.3.3.5, 3.3.6.6.1, 3.3.6.8.2, 3.3.6.12.1, 3.3.6.12.4.1, 3.3.7.1, 3.3.7.2.1, 3.3.7.2.2, 3.3.7.2.3, 3.3.7.4, 3.3.7.5, 3.3.7.6, 3.3.7.7, 3.5.1.2, B.3.3.6.12.1, Table XX)

SSP 50007

Rev. D February 2006 Space Station Inventory Management System Bar Code Label Requirements and Specification (Reference paragraphs 3.3.3, 3.3.3.1)

SSP 50014

Rev. B September 3, 1997 International Space Station Utility Coding Specification (Reference paragraph 3.3.3)

SSP 50036

Rev. C April 15, 2003 Microgravity Control Plan (Reference paragraph 3.2.1.1.4.1)

SSP 50184

Rev. B May 25, 2001 Physical Media, Physical Signaling & Link-Level Protocol Specifications for Ensuring Interoperability of High Rate Data Link Stations on the International Space Station (Reference paragraph 3.2.2.9)

SSP 50251, Part 1 Rev. B, IRN 0003 May 30, 2003 ARIS to Pressurized Element Interface Control Document Part 1 (Reference paragraph 3.2.2.14)

SSP 50342

Rev. C August 18, 2010 MIL-STD-1553 Remote Terminal Test Exceptions Report (Reference paragraph 3.3.21)

SSQ 21635

Rev. K October 29, 2002 Connectors and Accessories, Electrical, Circular, Miniature, IVA/EVA Compatible, Space Quality, General Specification for (Reference paragraph 3.3.23.1)

SSQ 21636

Rev. F January 15, 2000 Connectors and Accessories, Electrical, Rectangular, Rack and Panel, Space Quality, General Specification for (Reference paragraph 3.3.23.1)

SSQ 21655

Rev. F January 15, 2000 Cable, Electrical, MIL-STD-1553 Databus, Space Quality, General Specification for (Reference paragraph 3.3.23.1)

SSQ 26000

Rev. Basic October 16, 1996 Space Station Program Office Standard Repair for Sharp Edges on SSQ 21635 NZGL Type Connector Assemblies and Components (Reference paragraph 3.3.6.12.3.1)

Nongovernment publications.

The following documents of the exact issue shown form a part of this specification to the extent specified herein. In the event of a conflict between the documents referenced herein and the contents of this specification, the contents of this specification shall be considered a superseding requirement.

SPECIFICATIONS

INDUSTRY

ISO/IEC 8802-3

4th Edition July 8, 1993 (withdrawn) Information Technology - Local and Metropolitan Area Networks - Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications (Reference paragraph 3.2.2.10)

SPACE STATION PROGRAM

NONE

Order of precedence.

In the event of a conflict between the text of this specification and references cited herein, the text of this specification takes precedence. Nothing in this specification, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

Meet or exceed.

The following documents have been identified as meeting or exceeding the applicable Space Station Program (SSP) documents referenced herein:

JAXA Document Meets or Exceeds ISS Document

CR-99117 SSP 30233

CR-99050 SSP 30312

SYSTEM REQUIREMENTS

System definition.

System description.

The JEM is a facility consisting of a laboratory, logistics modules and robotic manipulator for the purpose of supporting research and development experiments in a microgravity environment in an earth orbit. The JEM supports permanent human habitation as a segment of the Space Station. The JEM can support both internal and external user payloads and can transfer equipment and user payloads from the laboratory to the vacuum of space without the need of a pressure suited crewmember. The JEM system diagram is shown in Figure 1, JEM functional flow and layout.

FIGURE 1. JEM functional flow and layout JEM flight system.

The JEM flight system is comprised of five major sections which are launched and assembled on orbit.

The Pressurized Module (PM) is a laboratory which provides crewmembers a shirt-sleeve environment for experimental research in areas such as space medicine, life sciences, materials processing, and biotechnologies. The PM can also transfer equipment to and from the vacuum of space without having to depressurize the entire laboratory.

The Exposed Facility (EF) is an unpressurized pallet structure exposed to the environments of space to support user payloads for the purpose of experimental research in areas such as communications, science, engineering, materials processing, and earth observation. The EF supplies user payloads with structural support, thermal conditioning, power, video, and data services.

The Experiment Logistics Module-Pressurized Section (ELM-PS) is a pressurized passive storage and carrier module for consumables, Orbital Replaceable Unit (ORU), and internal user payloads.

The Experiment Logistics Module-Exposed Section (ELM-ES) is an unpressurized storage and carrier module for external ORU and EF user payloads.

The JEM Remote Manipulator System (RMS) is a robotic system used for the transport and positioning of external user payloads. The JEM RMS is comprised of both an internal and external section. The external section consists of a main arm and a fine arm for robotics manipulation. The internal section allows an Intravehicular Activity (IVA) crew to operate the external robotics.

Deleted.

Missions.

The primary mission of the JEM is to provide supporting functions and operations to multiple users. These functions and operations provide a capability for:

Threat.

Not applicable.

System diagrams.

The JEM system level functional schematic, functional flow, and system level layout is shown in Figure 1.

Interface requirements.

External interfaces.

The JEM functional external interfaces are as shown in Figure 2.

FIGURE 2. JEM external interfaces United States On-orbit Segment external interface descriptions.

The JEM interface with the United States On-orbit Segment (USOS) consists of structural, mechanical, and utility connections. At the JEM to USOS pressurized interface the JEM receives electrical power, and gaseous nitrogen from the USOS, shares data, thermal energy, video, audio, atmosphere, structural, mechanical, loads and vibrations with the USOS and returns water to the USOS. This interface also allows for crew, payload and equipment translation between the USOS and JEM. The USOS to JEM physical and functional interface requirements are as defined in SSP 41151, Interface Requirements Document United States On-orbit Segment to Japanese Experiment Module.

Deleted.

Canadian Mobile Servicing System external interface descriptions.

The JEM interface with the Mobile Servicing System (MSS) consists of mechanical and utility connections. These interfaces permit the MSS to translate and position the JEM and to provide necessary “keep alive” utilities. At this interface the JEM can receive power and shares a mechanical interface, loads, and vibrations. The MSS to JEM physical and functional interface requirements are as defined in SSP 41151, sections 3.3 and 3.4 and SSP 42004, Mobile Servicing System (MSS) to User (Generic) Interface Control Document Part I, section A3.

Orbiter external interface descriptions.

The JEM interface with the Orbiter consists of mechanical and utility connections during JEM transport in the Orbiter cargo bay and handling by the Orbiter RMS. The JEM to Orbiter physical and functional interface requirements are as defined in ICD-A-21370-PM, Shuttle Orbiter/JEM PM/RMS Cargo Element Interface, ICD-A-21433-PS, Shuttle Orbiter/Japanese Experiment Module (JEM-PS) Cargo Element Interfaces, ICD-A-21434-EF, Shuttle Orbiter/JEM-EF Cargo Element Interface, and ICD-A-21434-ES, Shuttle Orbiter/Japanese Experiment Module (JEM-ES) Cargo Element Interface.

User payload external interface descriptions.

Internal user payload external interface descriptions.

The JEM interface with internal user payloads consists of mechanical and utility connections. At this interface the JEM provides power, thermal conditioning, gases, and vacuum resources to, and shares data and video with user payloads. The user payload to JEM interface requirements are as defined in SSP 41152, Interface Requirements Document International Standard Payload Rack (ISPR).

External user payload external interface descriptions.

The JEM interface with external user payloads consists of mechanical and utility connections. At this interface the JEM provides power and thermal conditioning resources to, and shares data and video with user payloads. The requirements to be met by external user payloads are defined in JAXA document NASDA-ESPC-2900, JEM Payload Accommodation Handbook - Volume 3 Exposed Facility/Payload Standard Interface Control Document.

Crew external interface descriptions.

The JEM interfaces with the crew to allow monitor and control of user payloads, conduct of scientific experiments, and to perform maintenance tasks.

Interfaces with MPEV External Sampling Adapter.

The JEM provides mechanical and fluid interfaces with the Manual Pressure Equalization Valve (MPEV) External Sampling Adapter. The detailed requirements for these physical and functional interfaces are as specified in ICD-3-60060, Manual Pressure Equalization Valve Sampling Adapter (External) ICD.

Interfaces with MPEV Internal Sampling Adapter.

The JEM provides mechanical and fluid interfaces with the MPEV Internal Sampling Adapter (ISA). The detailed requirements for these physical and functional interfaces are as specified in ICD-3-60067, Manual Pressure Equalization Valve Sampling Adapter (Internal) ICD.

Deleted.

FIGURE 3. Deleted United States furnished material.

Characteristics.

Performance characteristics.

State: Perform mission-on-orbit.

A stable condition of the Space Station defined by the provision of human habitable environment to support the accomplishment of mission objectives.

Mode: Standard.

This mode represents the core operations of the Space Station when it is tended or preparing to support a human presence. The vehicle actively determines and controls its attitude nonpropulsively. This mode provides a “shirt sleeve” environment for the crew. Both internal and external user payload operations are being supported, monitored, and controlled. The crew can perform IVA maintenance actions. The functional capabilities for this mode are in the following paragraphs.

Capability: Relieve overpressure.

Deleted.

Capability: Equalize pressure.

The JEM shall equalize the pressure differential between the JEM at 14.9 psia and an adjacent vestibule at vacuum to less than 0.01 psid within three minutes.

Capability: Control atmosphere temperature.

Capability: Control atmosphere moisture.

Capability: Circulate atmosphere.

Capability: Control internal lighting.

Capability: Illuminate internal area.

The JEM shall illuminate the interior of the JEM to the levels as specified in accordance with SSP 50005, International Space Station Flight Crew Integration Standard (NASA-STD-3000/T), Figure 8.13.3.1.2-1.

Capability: Illuminate video area - external.

The JEM shall illuminate the external video camera areas.

Capability: Isolate to recovery level.

The JEM shall automatically isolate detected failures to the functional recovery level for those functions requiring automatic recovery, identified in Table I, On-orbit JEM functions requiring automatic FDIR capability, Automatic Isolation/Recovery column.

TABLE I. On-orbit JEM functions requiring automatic FDIR capability (2 pages)

Assessment (2) Automatic Isolation/Recovery (3)

Equalize pressure

Control internal lighting

Illuminate internal area

Illuminate video area - external

Control airborne particulate contaminants

Control airborne microbial growth

Provide remote visual access

Set up voice communication

Transmit voice communication

Receive voice communication

Generate pointing and support data

Limit acceleration

Perform external robotic operations

Capability: Recover lost function.

The JEM shall automatically implement pre-defined recovery procedures for failures of those functions requiring automatic recovery, identified in Table I, Automatic Isolation/Recovery column.

Capability: Isolate for safing.

The JEM shall automatically isolate to the safing level detected hazards that may, within 24 hours, manifest a catastrophic or critical hazard.

Capability: Safe.

The JEM shall automatically safe, in less time than time to catastrophic or critical effect, any hazard that may, within 24 hours, manifest a catastrophic or critical hazard.

Capability: Maintain station mode.

Capability: Transition station mode.