SSP_41151-RevH.docx
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- Human Space Flight Technical Integration Contract (HSFTIC) Federal contract opportunity
- Solicitation number
- 80JSC019R0023
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This is a notice for a Request for Proposal for the Human Space Flight Technical Integration Contract. The National Aeronautics and Space Administration Johnson Space Center plans to issue this RFP for technical integration services. The solicitation is anticipated to be released on November 1, 2019, with proposals due by December 11, 2019. This is a total small business set-aside with a North American Industry Classification System code of 541715 and 1,250 employee size standard. The contract documents and any amendments will be available at the provided websites. Prospective offerors must notify the office of their intent to submit a proposal. Offerors are responsible for monitoring the website and downloading their own copy of the solicitation. All technical questions must be submitted in writing by email or fax, with no phone questions accepted.
SSP 41151-RevH
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SSP 41151
Revision H INTERFACE REQUIREMENTS DOCUMENT UNITED STATES ON-ORBIT SEGMENT TO JAPANESE EXPERIMENT MODULE
International Space Station Program
Revision H
August 2016
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
REVISION AND HISTORY
REV.
DESCRIPTION
PUB. DATE
− A
B
C
(Reference SSCB CD000002, dated 02−07−94, Eff. 03/22/94) Revision A (SSCD 000099, EFF. 11−04−94) DCN 005 per SSCD 000109
DCN 006 per SSCD 000067, EFF. 11−21−95 (Release to File) DCN 001 per SSCD 000145, EFF. 10−31−95 (Release to File) DCN 004 per SSCD 000200, EFF. 10−16−95 (Release to File) DCN 003 per SSCD 000185, EFF. 05−07−96 (Release to File) DCN 007 per SSCD 000147, EFF. 08−05−96 (Release to File) DCN 002 per SSCD 000180, EFF. 01−18−96 (Release to File) DCN 009 per SSCD 000102, EFF. 06−10−97 (Release to File) DCN 011 per SSCD 000102, EFF. 06−10−97 (Release to File) DCN 010 per SSCD 000263, EFF. 10−03−97 (Release to File) DCN 012 per SSCD 000239, EFF. 03−31−98 (Release to File) Revision B per SSCD 000415, EFF. 01−29−98
DCN 014 per SSCD 000253, EFF. 09−24−98 (Release to File) DCN 018 per SSCD 000479, EFF. 09−29−97 (Release to File) DCN 025 per SSCD 000324, EFF. 03−28−97 (Release to File) DCN 019 per SSCD 000335, EFF. 02−06−98 (Release to File) DCN 028 per SSCD 000557, EFF. 03−16−98 (Release to File) DCN 033 per SSCD 000470, EFF. 05−16−98 (Release to File) DCN 021 per SSCD 000311, EFF. 06−28−98 (Release to File) DCN 026 per SSCD 000412, EFF. 08−20−97 (Release to File) DCN 044 per SSCD 001343, EFF. 03−08−99 (Release to File) Revision C per SSCD 001343, EFF. 03−08−99)
03−22−94
06−29−96
11−12−98
11−12−98
11−12−98
11−12−98
11−12−98
11−12−98
11−12−98
11−12−98
11−12−98
11−12−98
11−12−98
05−20−99
05−20−99
05−20−99
05−20−99
05−20−99
05−20−99
05−20−99
05−20−99
05−20−99
05−20−99
REVISION AND HISTORY - Continued
PUB. DATE
D
The following DCNs have been cancelled. The content of the SSCNs authorizing release of the DCNs has been incorporated into Revision D.
DCN 020 PER SSCN 000269
DCN 022 PER SSCN 000249
DCN 032 PER SSCN 000663
DCN 034 PER SSCN 000600
DCN 036 PER SSCN 000737
DCN 039 PER SSCN 000580
DCN 041 PER SSCN 000580
DCN 045 PER SSCN 002494
DCN 046 PER SSCN 002494
DCN 047 PER SSCN 000580
DCN 048 PER SSCN 001386
DCN 049 PER SSCN 001324
DCN 050 PER SSCN 001324
DCN 052 PER SSCN 001021
DCN 054 PER SSCN 002494
DCN 055 PER SSCN 005652
DCN 074 PER SSCN 001662
Revision D closes the following SSCNs as they were withdrawn or overcome by events: 000264, 000346, 000290 (DCN0059) Revision D retires the following DCNs as they were withdrawn: 043, 056, 057, 058, 075, 076, 077, 079, and 080
Revision D per SSCD 005652, EFF. 03−20−02
The following DCNs have been cancelled. The content of the SSCNs authorizing release of the DCNs have been incorporated into Revision E.
DCN 027 PER SSCN 000391
DCN 053 PER SSCN 001464
DCN 073 PER SSCN 001680
DCN 078 PER SSCN 007351
DCN 091 PER SSCN 007351
DCN 095 PER SSCN 007351
DCN 096 PER SSCN 007351
DCN 098 PER SSCN 006154
DCN 100 PER SSCN 007351
DCN 113 PER SSCN 007351
07−26−02
PUB. DATE
E
Revision E closes the following SSCNs and associated DCNs as they have been overcome by events:
DCN 051 PER SSCN 001927
DCN 060 PER SSCN 002045
DCN 061 PER SSCN 002107
Revision E also closes the following SSCNs as they have been overcome by events: 000554, 000567, 000583, 000588, 000591, 000673, 000773, 000780, 000823 000832, 000844, 000845, 000877, 000889, 000894, 000915, 001026, 001262, 001481, 001594, 001920
Revision E per SSCD 007351, EFF. 12−11−02 Revision F closes the following SSCNs and associated DCNs DCN 0116 PER SSCN 007414
DCN 0117 PER SSCN 008781
DCN 0121 PER SSCN 008781
DCN 0124 PER SSCN 008781
The following DCNs have been cancelled. The content of the SSCNs authorizing release of the DCNs have been incorporated into Revision E by DCN 092
DCN 070 incorporates SSCN 001704 Administrative cancel DCN 008 incorporates SSCN 001740 Administrative cancel DCN 056 incorporates SSCN 001920 Administrative cancel DCN 071 incorporates SSCN 001929 Administrative cancel DCN 063 incorporates SSCN 002133 Administrative cancel DCN 064 incorporates SSCN 002134 Administrative cancel DCN 065 incorporates SSCN 002191 Administrative cancel DCN 066 incorporates SSCN 002130 Administrative cancel DCN 067 incorporates SSCN 002485 Administrative cancel DCN 068 incorporates SSCN 001938 Administrative cancel DCN 081 incorporates SSCN 002820 Administrative cancel DCN 082 incorporates SSCN 003213 Administrative cancel DCN 084 incorporates SSCN 003690 Administrative cancel DCN 085 incorporates SSCN 003746 Administrative cancel DCN 089 incorporates SSCN 004676 Administrative cancel DCN 090 incorporates SSCN 002877 Administrative cancel DCN 107 incorporates SSCN 002588 Administrative cancel DCN 110 incorporates SSCN 005651 Administrative cancel
06−24−03
PUB. DATE
F G
G
Revision F also closes the following SSCNs as they have overcome by events:
07−07−05
08−20−09
DCN 017 SSCN 000256
DCN 029 SSCN 000480
DCN 031 SSCN 000561
DCN 069 SSCN 002135
DCN 097 SSCN 005645
DCN 062 SSCN 002345
Revision F per SSCN 008781, EFF. 11−30−04 Revision G closes the following SSCNs and associated DCNs DCN 0130 PER SSCN N/A DCN 0132 PER SSCN N/A DCN 0133 PER SSCN N/A DCN 0144 PER SSCN N/A DCN 0146 PER SSCN N/A
DCN 0140 PER SSCN 003282, 007474, 8007, 8255, 009476, 003928,
008197, 008487, 009111, 009993, 010546
Revision G per SSCN 011525, EFF, 5−4−09
Revision H closes the following SSCNs and associated DCNs
DCN 0157 PER SSCN 010782, 010866, 010915
DCN 0163 PER SSCN 010445, 010904, 011294, 011737, 012037, 012906,
013845
The following DCNs will not be used as their assigned contents has been incorporated into DCN 163: SSCN 010445 (DCN 153), SSCN 011294 (DCN 162), 011737 (DCN 155), 012037 (DCN 158), 012906 (DCN 160).
The following DCNs have been cancelled. The content of the SSCNs authorizing release of the DCNs have been incorporated into Revision H by DCN 157 DCN 0149 incorporates SSCN 10866 Administrative cancel DCN 0151 incorporates SSCN 10915 Administrative cancel
SSCN 11388 and DCN 0154 are cancelled because documents SSP 30237 and SSP 30237** are no longer in the SSP 41151 document
SSCN 15370 is being incorporated into Revision H directly, therefore no DCN was created.
| REV |
| DESCRIPTION |
| PUB. |
DATE
| H |
| Revision H (Reference per SSCN 15491, EFF. 10-12-16) |
| Program Release |
| 11-30-16 |
PREFACE
INTERFACE REQUIREMENTS DOCUMENT UNITED STATES ON-ORBIT SEGMENT TO JAPANESE EXPERIMENT MODULE This Interface Requirements Document (IRD) defines the physical and functional interface requirements between the United States On-orbit Segment (USOS) and the Japanese Experiment Module (JEM). This IRD provides all interface requirements necessary to develop Space Station Interface Control Documents (ICDs), and the associated verification requirements, in a verification matrix form, as necessary to verify both sides of the interface.
The contents of this document equally apply to the National Aeronautics and Space Administration (NASA) and to its contractor and to the Japan Aerospace Exploration Agency (JAXA) and its contractor. The USOS to JEM IRD shall be implemented on all new International Space Station Program contractual and internal activities. This document is under the control of the Space Station Control Board (SSCB), and any changes or revisions will be bilaterally approved by the NASA Program Manager and the JAXA Program Manager.
INTERNATIONAL SPACE STATION PROGRAM
INTERFACE REQUIREMENTS DOCUMENT United States ON-Orbit Segment TO JAPANESE EXPERIMENT MODULE
CONCURRENCE
August 2016 iii
TABLE OF CONTENTS
| PARAGRAPH | PAGE | |
| 1.0 | INTRODUCTIOn | 1-1 |
| 1.1 | PURPOSE AND SCOPE | 1-1 |
| 1.2 | PRECEDENCE | 1-1 |
| 1.3 | CHANGE AUTHORITY | 1-1 |
| 1.4 | RESPONSIBILITIES | 1-1 |
| 1.5 | engineering units | 1-1 |
| 1.6 | conversions | 1-1 |
| 2.0 | DOCUMENTS | 2-1 |
| 2.1 | applicable documents | 2-1 |
| 2.2 | reference documents | 2-4 |
| 3.0 | INTERFACE REQUIREMENTS | 3-1 |
| 3.1 | INTERFACE DESCRIPTION | 3-1 |
| 3.1.1 | on-orbit location | 3-1 |
| 3.1.2 | STRUCTURAL INTERFACE | 3-1 |
| 3.1.3 | UTILITY INTERFACES | 3-1 |
| 3.2 | SSMB NODE 2 TO JEM INTERFACE REQUIREMENTS | 3-1 |
| 3.2.1 | STRUCTURAL/MECHANICAL INTERFACES | 3-1 |
| 3.2.1.1 | COMMON BERTHING MECHANISM INTERFACES | 3-1 |
| 3.2.1.1.1 | CBM ATTACHMENT | 3-1 |
| 3.2.1.1.2 | ON-ORBIT INTERFACE LOADS | 3-1 |
| 3.2.1.1.3 | ON-ORBIT THERMAL STRUCTURAL LOADS | 3-4 |
| 3.2.1.1.3.1 | ON-ORBIT THERMALLY INDUCED STRUCTURAL LOADS | 3-4 |
| 3.2.1.1.3.2 | ON−ORBIT THERMALLY INDUCED LOADS SPECTRA | 3-5 |
| 3.2.1.2 | UTILITY MECHANICAL INTERFACES | 3-7 |
| 3.2.1.2.1 | UTILITY INTERFACE PROVISIONS | 3-7 |
| 3.2.1.2.2 | UTILITY MATING | 3-7 |
| 3.2.1.2.3 | UTILITY ACCESSIBILITY | 3-7 |
| 3.2.1.3 | PASSAGEWAY CLEARANCE | 3-7 |
| 3.2.1.4 | DELETED | 3-8 |
| 3.2.2 | ELECTRICAL/ELECTRONIC INTERFACES | 3-8 |
| 3.2.2.1 | power interfaces | 3-9 |
| 3.2.2.1.1 | ssmb node 2 power to jem-pm | 3-9 |
| 3.2.2.1.1.1 | power rating | 3-9 |
| 3.2.2.1.1.2 | power quality | 3-9 |
| 3.2.2.1.1.2.1 | operational bus voltage | 3-9 |
| 3.2.2.1.1.2.2 | voltage envelope | 3-9 |
| 3.2.2.1.1.2.3 | abnormal voltage envelope | 3-10 |
| 3.2.2.1.1.2.4 | source output impedance | 3-12 |
| 3.2.2.1.1.2.5 | phase and gain margins | 3-15 |
| 3.2.2.1.1.3 | output protection | 3-15 |
| 3.2.2.1.1.4 | DELETED | 3-15 |
| 3.2.2.1.1.5 | fault current return | 3-15 |
| 3.2.2.1.1.6 | return grounding | 3-15 |
| 3.2.2.1.1.7 | bonding | 3-15 |
| 3.2.2.1.1.8 | Power feeder isolation | 3-15 |
| 3.2.2.1.2 | power outlets | 3-15 |
| 3.2.2.1.2.1 | power rating | 3-15 |
| 3.2.2.1.2.2 | power quality | 3-15 |
| 3.2.2.1.2.3 | output protection | 3-16 |
| 3.2.2.1.2.3.1 | overcurrent protection | 3-16 |
| 3.2.2.1.2.3.2 | deleted | 3-16 |
| 3.2.2.1.2.4 | DELETED | 3-16 |
| 3.2.2.1.2.5 | available outlets | 3-16 |
| 3.2.2.2 | avionics INTERFACES | 3-16 |
| 3.2.2.2.1 | Functional ALLOCATION data interface | 3-16 |
| 3.2.2.2.1.1 | COMMAND INTERFACE | 3-16 |
| 3.2.2.2.1.2 | CAUTION AND WARNING (C&W) | 3-17 |
| 3.2.2.2.1.3 | FILE MANAGEMENT | 3-17 |
| 3.2.2.2.1.4 | TELEMETRY | 3-18 |
| 3.2.2.2.1.5 | Ancillary data service | 3-18 |
| 3.2.2.2.1.6 | NOT APPLICABLE | 3-18 |
| 3.2.2.2.1.7 | Modes | 3-18 |
| 3.2.2.2.1.8 | JEM Activation | 3-18 |
| 3.2.2.2.1.9 | fault detection isolation and recovery (FDIR) | 3-18 |
| 3.2.2.2.1.10 | US PCS Functional Interface | 3-19 |
| 3.2.2.2.2 | control bus cb ext-1 and cb ext-2 interfaces | 3-19 |
| 3.2.2.2.2.1 | failure tolerance | 3-19 |
| 3.2.2.2.2.2 | link protocol | 3-21 |
| 3.2.2.2.2.3 | electrical ports for us portable computers | 3-21 |
| 3.2.2.2.2.4 | bus control | 3-21 |
| 3.2.2.2.2.5 | bus time distribution | 3-21 |
| 3.2.2.2.2.5.1 | time distribution data rates | 3-21 |
| 3.2.2.2.2.5.2 | time code definition | 3-21 |
| 3.2.2.2.2.6 | communications services | 3-22 |
| 3.2.2.2.2.7 | control bus functional interfaces | 3-22 |
| 3.2.2.2.2.7.1 | element level control commands | 3-22 |
| 3.2.2.2.2.7.2 | normal status data | 3-22 |
| 3.2.2.2.2.7.3 | CAUTION AND WARNING | 3-22 |
| 3.2.2.2.2.7.4 | message | 3-23 |
| 3.2.2.2.2.7.5 | SS Ancillary data | 3-23 |
| 3.2.2.2.2.7.6 | data wrap | 3-23 |
| 3.2.2.2.2.7.7 | SSMB AND US portable computer (LOCATED IN JEM) INTERFACE | 3-23 |
| 3.2.2.2.2.7.8 | control and monitor functions | 3-23 |
| 3.2.2.2.2.7.9 | file transfer data interface | 3-23 |
| 3.2.2.2.2.7.10 | SPLIT SCREEN DATA INTERFACE | 3-24 |
| 3.2.2.2.2.8 | data rates | 3-24 |
| 3.2.2.2.2.9 | Link Availability | 3-25 |
| 3.2.2.2.2.10 | terminations | 3-25 |
| 3.2.2.2.3 | local bus payload - jem (lb pl-jem) interfaces | 3-26 |
| 3.2.2.2.3.1 | LB PL-jem functional interface | 3-26 |
| 3.2.2.2.3.2 | electrical port for us portable computer | 3-26 |
| 3.2.2.2.3.3 | terminations | 3-26 |
| 3.2.2.2.4 | JEM payload bus e interface | 3-26 |
| 3.2.2.2.4.1 | JEM payload bus e functional interface | 3-29 |
| 3.2.2.2.4.2 | ELECTRICAL PORT FOR JEM PORTABLE COMPUTER | 3-29 |
| 3.2.2.2.4.3 | terminations | 3-29 |
| 3.2.2.2.5 | deleted | 3-29 |
| 3.2.2.2.5.1 | deleted | 3-29 |
| 3.2.2.2.6 | local bus checs-jem interfaces | 3-29 |
| 3.2.2.2.6.1 | terminations | 3-30 |
| 3.2.2.2.7 | high rate data link signals | 3-30 |
| 3.2.2.2.7.1 | HRDL functional description | 3-32 |
| 3.2.2.2.7.2 | data interface | 3-32 |
| 3.2.2.2.7.3 | logical interface | 3-32 |
| 3.2.2.2.7.4 | high rate interface medium | 3-32 |
| 3.2.2.2.7.5 | high rate data link input characteristics | 3-32 |
| 3.2.2.2.7.6 | high rate data link output characteristics | 3-32 |
| 3.2.2.2.7.7 | high rate data link jumper attenuation | 3-32 |
| 3.2.2.2.8 | Medium rate data link (MrdL) interface | 3-33 |
| 3.2.2.2.8.1 | payload lan interface | 3-33 |
| 3.2.2.2.8.2 | pcs lan interface | 3-33 |
| 3.2.2.2.9 | caution and warning manual activation and acknowledge signal interface | 3-33 |
| 3.2.2.2.9.1 | interface description | 3-33 |
| 3.2.2.2.9.2 | wire harness length | 3-33 |
| 3.2.2.3 | audio interfaces | 3-33 |
| 3.2.2.3.1 | HARDWIRED AUDIO | 3-33 |
| 3.2.2.3.1.1 | ssmb transmit optical linear pulse code modulated (lpcm) audio signal characteristics | 3-35 |
| 3.2.2.3.1.1.1 | optical lpcm audio signal power levels | 3-35 |
| 3.2.2.3.1.2 | jem transmit optical linear pulse code modulated (lpcm) audio signal characteristics | 3-35 |
| 3.2.2.3.1.2.1 | Optical lpcm audio signal power levels | 3-35 |
| 3.2.2.3.2 | audio interface standard | 3-36 |
| 3.2.2.3.3 | WIRELESS COMMUNICATION | 3-36 |
| 3.2.2.3.3.1 | communication cable specification | 3-38 |
| 3.2.2.3.3.2 | UHF Communication Distribution | 3-38 |
| 3.2.2.3.3.3 | interface Impedance | 3-38 |
| 3.2.2.3.3.4 | interface vswr | 3-38 |
| 3.2.2.3.3.5 | INTERFACE POWER LEVEL | 3-38 |
| 3.2.2.3.3.6 | LINK LOSS IN JEM | 3-38 |
| 3.2.2.3.4 | HARDWIRED AUDIO DATA BUS | 3-38 |
| 3.2.2.4 | video interfaces | 3-39 |
| 3.2.2.4.1 | VIDEO TRUNK INTERFACE IMPLEMENTATION | 3-39 |
| 3.2.2.4.2 | deleted | 3-41 |
| 3.2.2.4.3 | VIDEO signal INTERFACE STANDARD | 3-41 |
| 3.2.2.4.3.1 | JEM TRANSMIT OPTICAL PULSE FREQUENCY MODULATION (PFM) NATIONAL TELEVISION STANDARDS COMMITTEE (NTSC) VIDEO SIGNAL CHARACTERISTICS | 3-41 |
| 3.2.2.4.3.1.1 | JEM transmit optical pfm ntsc video signal power levels | 3-41 |
| 3.2.2.4.3.2 | SSMB TRANSMIT OPTICAL PFM NTSC VIDEO SIGNAL CHARACTERISTICS | 3-41 |
| 3.2.2.4.3.2.1 | SSMB TRANSMIT OPTICAL PFM NTSC VIDEO SIGNAL power levels | 3-41 |
| 3.2.2.4.3.3 | SSMB TRANSMIT OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL CHARACTERISTICS | 3-42 |
| 3.2.2.4.3.3.1 | SSMB TRANSMIT OPTICAL PFM NTSC SYNC AND CONTROL SIGNAL power levels | 3-42 |
| 3.2.2.4.4 | video system CONTROL INTERFACE | 3-42 |
| 3.2.2.4.5 | CAMERA CONTROL SIGNAL | 3-43 |
| 3.2.2.4.6 | simultaneous video downlink | 3-43 |
| 3.2.2.4.7 | split screen function | 3-43 |
| 3.2.3 | THERMAL INTERFACES | 3-43 |
| 3.2.3.1 | ACTIVE THERMAL INTERFACES | 3-43 |
| 3.2.3.1.1 | INTERFACE LOCATION | 3-43 |
| 3.2.3.1.2 | INTERFACE CHARACTERISTICS (NOMINAL MODE) | 3-43 |
| 3.2.3.1.2.1 | jem MODERATE TEMPERATURE (MT) INTERFACE HEAT LOAD CAPABILITY | 3-43 |
| 3.2.3.1.2.2 | JEm LOW TEMPERATURE (LT) INTERFACE HEAT LOAD CAPABILITY | 3-43 |
| 3.2.3.1.2.3 | Single Fault Tolerant Support | 3-43 |
| 3.2.3.1.2.4 | jem MT INTERFACE TEMPERATURE | 3-44 |
| 3.2.3.1.2.4.1 | supply interface temperature (JEM-PM INLET) | 3-44 |
| 3.2.3.1.2.4.2 | return interface temperature (ssmb node 2 inlet) | 3-44 |
| 3.2.3.1.2.5 | jem LT INTERFACE TEMPERATURE | 3-44 |
| 3.2.3.1.2.5.1 | supply interface temperature (JEM-PM INLET) | 3-44 |
| 3.2.3.1.2.5.2 | return interface temperature (ssmb node 2 inlet) | 3-44 |
| 3.2.3.1.2.6 | jem MT INTERFACE DESIGN PRESSURE | 3-44 |
| 3.2.3.1.2.7 | jem LT INTERFACE DESIGN PRESSURE | 3-44 |
| 3.2.3.1.2.8 | jem MT INTERFACE FLOW RATE | 3-44 |
| 3.2.3.1.2.9 | jem LT INTERFACE FLOW RATE | 3-44 |
| 3.2.3.1.2.10 | jem MT INTERFACE PRESSURE DROP | 3-45 |
| 3.2.3.1.2.11 | jem LT INTERFACE PRESSURE DROP | 3-45 |
| 3.2.3.1.2.12 | node 2 MT INTERFACE WATER loop VOLUME | 3-45 |
| 3.2.3.1.2.13 | Node 2 LT INTERFACE WATER loop VOLUME | 3-45 |
| 3.2.3.1.2.14 | JEM MT INTERFACE WATER LEAKAGE | 3-45 |
| 3.2.3.1.2.15 | jem LT INTERFACE WATER LEAKAGE | 3-45 |
| 3.2.3.1.3 | COOLANT SPECIFICATION | 3-45 |
| 3.2.3.2 | PASSIVE THERMAL INTERFACES | 3-46 |
| 3.2.3.2.1 | structural interface temperature | 3-46 |
| 3.2.3.2.1.1 | jem-pm to ssmb node 2 interface temperature | 3-46 |
| 3.2.3.2.1.2 | ssmb node 2 to jem-pm interface temperature | 3-46 |
| 3.2.3.2.2 | structural interface heat transfer | 3-46 |
| 3.2.3.2.2.1 | jem-pm to/from ssmb node 2 heat transfer | 3-46 |
| 3.2.3.2.2.2 | ssmb node 2 to/from jem-pm heat transfer | 3-46 |
| 3.2.4 | ENVIRONMENTAL CONTROL AND LIFE SUPPORT INTERFACES | 3-46 |
| 3.2.4.1 | INTERMODULE VENTILATION | 3-46 |
| 3.2.4.1.1 | Imv INTERFACE | 3-46 |
| 3.2.4.1.2 | IMV INTERFACE PRESSURE loss | 3-46 |
| 3.2.4.1.3 | IMV INTERFACE TEMPERATURE | 3-47 |
| 3.2.4.1.4 | ImV INTERFACE FLOW RATE | 3-47 |
| 3.2.4.1.5 | IMV INTERFACE HEAT LOAD | 3-47 |
| 3.2.4.1.6 | IMV NOISE LEVEL | 3-47 |
| 3.2.4.2 | WASTE WATER | 3-48 |
| 3.2.4.2.1 | wasTE WATER INTERFACE | 3-48 |
| 3.2.4.2.2 | WASTE WATER INTERFACE PRESSURE | 3-48 |
| 3.2.4.2.3 | WASTE WATER INTERFACE steady state TEMPERATURE | 3-48 |
| 3.2.4.2.4 | deleted | 3-48 |
| 3.2.4.2.5 | WASTE WATER INTERFACE FLOW RATE (peak) | 3-48 |
| 3.2.4.2.6 | WASTE WATER INTERFACE FREE GAS LEVEL | 3-48 |
| 3.2.4.2.7 | WASTE WATER INTERFACE PARTICULATE size | 3-49 |
| 3.2.4.2.8 | waste water interface temperature | 3-49 |
| 3.2.4.2.9 | Waste water interface maximum design pressure | 3-49 |
| 3.2.4.3 | RESERVED | 3-49 |
| 3.2.4.3.1 | DELETED | 3-49 |
| 3.2.4.3.2 | DELETED | 3-49 |
| 3.2.4.3.3 | DELETED | 3-49 |
| 3.2.4.3.4 | DELETED | 3-49 |
| 3.2.4.3.5 | DELETED | 3-49 |
| 3.2.4.4 | GASEOUS NITROGEN | 3-49 |
| 3.2.4.4.1 | GASEOUS NITROGEN INTERFACE | 3-49 |
| 3.2.4.4.2 | GASEOUS NITROGEN INTERFACE PRESSURE | 3-49 |
| 3.2.4.4.3 | gaseous nitrogen interface mdp | 3-49 |
| 3.2.4.4.4 | GASEOUS NITROGEN INTERFACE TEMPERATURE | 3-50 |
| 3.2.4.4.5 | GASEOUS NITROGEN INTERFACE FLOW RATE | 3-50 |
| 3.2.4.5 | ATMOSPHERE SAMPLING | 3-50 |
| 3.2.4.5.1 | ATMOSPHERE SAMPLING INTERFACE | 3-50 |
| 3.2.4.5.2 | ATMOSPHERE SAMPLING INTERFACE PRESSURE | 3-50 |
| 3.2.4.5.3 | ATMOSPHERE samplING INTERFACE TEMPERATURE | 3-50 |
| 3.2.4.5.4 | ATMOSPHERE SAMPLING INTERFACE FLOW RATE | 3-50 |
| 3.2.4.5.5 | ATMOSPHERE SAMPLING LINE | 3-50 |
| 3.2.4.5.5.1 | pressure loss | 3-50 |
| 3.2.4.5.5.2 | volume of gas | 3-50 |
| 3.2.5 | induced environments | 3-50 |
| 3.2.5.1 | electromagnetic compatibility | 3-50 |
| 3.3 | ssmb to jem-pm POWER DATA GRAPPLE FIXTURE (PDGF) INTERFACE REQUIREMENTS | 3-51 |
| 3.3.1 | STRUCTURAL/MECHANICAL INTERFACES | 3-51 |
| 3.3.2 | ELECTRICAL/ELECTRONICS INTERFACES | 3-51 |
| 3.3.2.1 | POWER INTERFACES | 3-51 |
| 3.3.2.1.1 | POWER FROM SSRMS | 3-51 |
| 3.3.2.1.2 | operating current | 3-51 |
| 3.4 | SSMB to jem flight releasable grapple fixtures (frgfs) interface requirements | 3-51 |
| 3.4.1 | STRUCTURAL/MECHANICAL INTERFACES | 3-51 |
| 3.5 | CHeCS TO JEM-PM INTERFACE REQUIREMENTS | 3-51 |
| 3.5.1 | STRUCTURAL/MECHANICAL INTERFACES | 3-51 |
| 3.5.2 | ELECTRICAL/ELECTRONICS INTERFACES | 3-51 |
| 3.5.2.1 | POWER INTERFACE | 3-51 |
| 3.5.2.2 | DATA INTERFACE | 3-52 |
| 3.5.2.3 | THERMAL INTERFACES | 3-52 |
| 3.5.2.3.1 | HEAT REJECTION | 3-52 |
| 3.6 | portable equipment to jem-pm interface requirements | 3-52 |
| 3.6.1 | structural/mechanical attachment | 3-52 |
| 3.6.2 | power interfaces | 3-52 |
| 4.0 | interface verification | 4-1 |
| 4.1 | Responsibilities | 4-1 |
| 4.2 | interface verification methods | 4-11 |
| 4.2.1 | Analysis and similarity | 4-11 |
| 4.2.2 | Review of design | 4-11 |
| 4.2.3 | inspection | 4-12 |
| 4.2.4 | demonstration | 4-12 |
| 4.2.5 | test | 4-12 |
| 4.3 | joint interface verification requirements | 4-13 |
| 5.0 | NOTES | 5-1 |
| 5.1 | deleted | 5-1 |
APPENDIX
| a.3 | ssmb node 2 elm-ps interface requirements | a-1 |
| b | abbreviations and acronyms | b-1 |
| c | TBD/TBC MATRIX | c-1 |
TABLE
| 3.2.1.1.2-1 | JEM/Node 2 Resultant Berthing Contact Forces | 3-2 |
| 3.2.1.1.2-2 | JEM/Node 2 Coupled Interface Loads | 3-3 |
| 3.2.1.1.2-3 | Contact Point Contact Loads(To be used for Common berthing mechanism design only) | 3-3 |
| 3.2.1.1.2-4 | On-orbit Transient Loads Spectra | 3-3 |
| 3.2.1.1.3.1-1 | ON-ORBIT THERMALLY INDUCED STRUCTURAL LOADS | 3-4 |
| 3.2.1.1.3.1-2 | ACBM/PCBM INTERFACE BOLT LOCATIONS | 3-5 |
| 3.2.1.1.3.2-1 | ON-ORBIT TRANSIENT THERMAL LOADS | 3-6 |
| 3.2.1.1.3.2-2 | ON-ORBIT THERMALLY INDUCED LOADS SPECTRUM (2 PAGES) | 3-6 |
| 3.2.1.1.3.2-3 | ON-ORBIT THEMALLY INDUCED MEAN BERTHING LOADS | 3-7 |
| 3.2.2.2.2.5.1-1 | SSMB TO JEM INTERFACE | 3-21 |
| 3.2.2.2.2.8-1 | SSMB TO JEM/JCP INTERFACE | 3-24 |
| 3.2.2.2.2.8-2 | SSMB TO JEM/RMS INTERFACE | 3-25 |
| 3.2.2.2.2.8-3 | SSMB TO JEM/DIU-III AB INTERFACE | 3-25 |
| 3.2.2.3.1.1.1-1 | OPTICAL LPCM AUDIO SIGNAL POWER | 3-35 |
| 3.2.2.3.1.2.1-1 | OPTICAL LPCM AUDIO SIGNAL POWER | 3-36 |
| 3.2.2.4.3.1.1-1 | OPTICAL PFM NTSC VIDEO SIGNAL POWER | 3-41 |
| 3.2.2.4.3.2.1-1 | optical pfm ntsc video signal power | 3-42 |
| 3.2.2.4.3.3.1-1 | optical pfm ntsc sync and control signal power | 3-42 |
| 3.2.4.1.6-1 | NOISE LEVEL (1) | 3-47 |
| 4.1-1 | SPACE STATION/JAPANESE EXPERIMENT MODULE INTERFACE VERIFICATION MATRIX (9 Pages) | 4-2 |
| A.3.2.1.1.2-1 | ELM-PS/Node 2 Resultant Berthing Contact Forces | a-1 |
| A.3.2.1.1.2-2 | ELM-PS/Node 2 Resultant Interface Loads | a-2 |
| A.3.2.1.1.2-3 | Contact Point Contact Loads (to be used for Common Berthing Mechanism Design Only) | a-2 |
| A.3.2.1.1.3.1-1 | ON-ORBIT THERMALLY INDUCED STRUCTURAL LOADS | a-3 |
| A.3.2.1.1.3.1-2 | ACBM/PCBM INTERFACE BOLT LOCATIONS | a-4 |
| A.3.2.1.1.3.2-1 | ON-ORBIT TRANSIENT THERMAL LOADS | a-5 |
| A.3.2.1.1.3.2-2 | ON-ORBIT THERMALLY INDUCED LOADS SPECTRUM | a-6 |
| A.3.2.1.1.3.2-3 | ON-ORBIT THERMALLY INDUCED MEAN BERTHING LOADS | a-6 |
| A.3.2.4.1.6-1 | NOISE LEVEL (1) | a-11 |
| C-1 | to be determined items | c-1 |
FIGURE
| 3.2.1.1.2-1 | JEM-PM INTERFACE LOADS APPLICATION | 3-2 |
| 3.2.1.1.3.1-1 | ACBM/PCBM INTERFACE PLANE ATTACHMENT BOLT LOCATIONS | 3-5 |
| 3.2.1.3-1 | JEM-PM HATCH/SSMB NODE 2 PASSAGE CLEARANCE ENVELOPE | 3-8 |
| 3.2.2.1.1.2.2-1 | VOLTAGE ENVELOPE | 3-10 |
| 3.2.2.1.1.2.3-1 | ABNORMAL VOLTAGE ENVELOPE | 3-11 |
| 3.2.2.1.1.2.4-1 | SOURCE OUTPUT IMPEDANCE (SINGLE DDCU) | 3-13 |
| 3.2.2.1.1.2.4-2 | SOURCE OUTPUT IMPEDANCE (PARALLEL DDCUs) | 3-14 |
| 3.2.2.1.1.4-1 | DELETED | 3-15 |
| 3.2.2.2.2-1 | CONTROL BUS CB EXT-1 AND CB EXT-2 INTERFACES | 3-20 |
| 3.2.2.2.3-1 | local bus payload-jem interface | 3-27 |
| 3.2.2.2.4-1 | JEM PAYLOAD BUS E INTERFACE | 3-28 |
| 3.2.2.2.5-1 | DELETED | 3-29 |
| 3.2.2.2.6-1 | LOCAL BUS CHECS-JEM INTERFACE | 3-30 |
| 3.2.2.2.7-1 | HIGH RATE DATA LINK INTERFACE | 3-31 |
| 3.2.2.3.1-1 | HARDWIRED AUDIO INTERFACE | 3-34 |
| 3.2.2.3.3-1 | WIRELESS AUDIO INTERFACE | 3-37 |
| 3.2.2.4.1-1 | VIDEO INTERFACE | 3-40 |
| A.3.2.1.1.2-1 | ELM-PS INTERFACE LOADS APPLICATION | a-2 |
| A.3.2.1.1.3.1-1 | ACBM/PCBM INTERFACE PLANE ATTACHMENT BOLT LOCATIONS | a-4 |
| A.3.2.1.3-1 | ELM-PS HATCH/SSMB NODE 2 PASSAGE CLEARANCE ENVELOPE | a-7 |
| A.3.2.2.1.2.1-1 | SOURCE IMPEDANCE MAGNITUDE | a-8 |
| A.3.2.2.1.2.1-2 | SOURCE IMPEDANCE PHASE | a-9 |
INTRODUCTIOn This IRD establishes the interface requirements between NASA and JAXA, with respect to the SSMB to JEM interfaces.
PURPOSE AND SCOPE
This IRD defines the physical and functional interface requirements between the SSMB and the JAXA JEM. The design of the Space Station to JAXA JEM interfaces in response to this IRD are controlled in SSP 42000, United States On-orbit Segment to JEM Interface Control Document (ICD). Interface design verification will be performed by each party according to the interface verification requirements as defined in Section 4 of this IRD. This IRD is not intended for specifying hardware exchange between JAXA and NASA. Software interface requirements between the Space Station Manned Base (SSMB) and Japanese Experiment Module (JEM) are documented in SSP 41151, United States On-orbit Segment to Japanese Experiment Module Interface Requirements Document Appendix D Software Interfaces.
PRECEDENCE
The overall functional requirements on the SSMB and the JEM are contained in SSP 41165, Segment Specification for the Japanese Experiment Module, in SSP 41162, United States On-orbit Segment Specification, and in this IRD. These documents together form a consistent set of requirements to be implemented by NASA and JAXA, as appropriate. In case of conflict between these documents and SSP 41000, System Specification for the International Space Station, SSP 41000 shall take precedence, to the extent it is applicable to each Partner.
CHANGE AUTHORITY
Changes to this document are controlled bilaterally via the Space Station Control Board (SSCB).
RESPONSIBILITIES
Unless otherwise noted herein, NASA and JAXA are responsible for designing and verifying, respectively, the SSMB and the JEM to the interface requirements established in this IRD.
engineering units Unless otherwise noted herein, all dimensions in this document are shown in the English (inch, pound, second) system of units followed by the equivalent International System (metric) value shown in parenthesis. Measurements may be verified by either system of units.
conversions The unit conversions are in accordance with ASTM-E380, Standard Practice for Use of the International System of Units (SI) (The Modernized Metric System), Section 4.5.
SSP 41151
Revision H
1-1
DOCUMENTS
applicable documents The following documents of the exact issue shown form a part of this document to the extent specified herein:
ISO 9314-1
January 1, 1989 Information Processing Systems, Fiber, Distributed Data Interface - Physical Layer Protocol
| References |
| (3.2.2.2.7.2) |
MIL-STD-1553
Revision B, Notice 2 September 8, 1986 Digital Time Division Command/Response Multiplex Data Bus
| References |
| (3.2.2.2.2, 3.2.2.2.2.1, 3.2.2.2.2.2, 3.2.2.2.2.4, 3.2.2.2.3, 3.2.2.2.4, 3.2.2.2.5, 3.2.2.2.6, 3.5.2.2) |
SSP 30243
Revision E
DCN 003, 004, 005, 006, 008, 007, 014, 023, (SSCN 11294)
June 9, 1998 Space Station Requirements for Electromagnetic Compatibility
| References |
| (3.2.5.1) |
SSP 30243**
Revision E
DCN 003, 004, 006, (SSCN 11294)
June 9, 1998 Space Station Requirements for Electromagnetic Compatibility
| References |
| (3.2.5.1) |
SSP 30245
Revision G
DCN 030, 036, 040
August 8, 2003 Space Station Electrical Bonding Requirements
| References |
| (3.2.2.1.1.7) |
SSP 30245**
Revision D
DCN 004, 005, 006, 007, 008, 030, 036
June 4, 1998 Space Station Electrical Bonding Requirements
| References |
| (3.2.2.1.1.7) |
SSP 30482
Revision C July 7, 1997 Electrical Power Specifications and Standards:Volume I, EPS Electrical Performance Specifications
| References |
| (3.2.2.1.1.2, 3.2.2.1.1.2.3, 3.2.2.1.2.2) |
SSP 30482**
Revision B
CN-002
January 2, 1996 Electrical Power Specifications and Standards:Volume I, EPS Electrical Performance Specifications
| References |
| (3.2.2.1.1.2, 3.2.2.1.1.2.3, 3.2.2.1.2.2) |
SSP 30573
Revision E December 2, 2009 Space Station Program Fluid Procurement and Use Control Specification
| References |
| (3.2.3.1.3) |
SSP 41151
Appendix D Current Issue United States On-orbit Segment to Japanese Experiment Module Interface Requirements Document Appendix D Software Interfaces
| References |
| (1.1, 3.2.2.2) |
SSP 42000
Current Issue United States On-orbit Segment to Japanese Experiment Module Interface Control Document
| References |
| (1.1, 3.2.2.2) |
SSP 42004
Current Issue Mobile Servicing System (MSS) to User (Generic) Interface Control Document Part 1
| References |
| (3.3.2.1.1) |
SSP 50001
Basic May 2, 1995 International Space Station Audio Bus Standard
| References |
| (3.2.2.3.2) |
SSP 50002*
Revision A, DCN 001, 002 October 20, 2000 International Space Station Video Standard
| References |
| (3.2.2.4.3.1, 3.2.2.4.3.2, 3.2.2.4.3.3) |
SSP 50002**
Revision A October 20, 2000 International Space Station Video Standard
| References |
| (3.2.2.4.3.1, 3.2.2.4.3.2, 3.2.2.4.3.3) |
SSP 50184
Revision B March 25, 2001 Physical Media, Physical Signaling & Link-Level Protocol Specifications for Ensuring Interoperability of High Rate Data Link Stations on the International Space Station
| References |
| (3.2.2.2.7.3) |
SSQ 21653
Revision D January 15, 2000 Cable, Coaxial, Twinaxial, and Triaxial Flexible and Semirigid, General Specification For
| References |
| (3.2.2.3.3.1) |
SSQ 21654
Revision C May 3, 1999 Cable, Single Fiber, Multimode, Space Quality, General Specification For
| References |
| (3.2.2.2.7.4, 3.2.2.4.3) |
*Document not applicable until JAXA concurs **Document applicable to ASI Node 2 only reference documents The following documents are referenced in this IRD for context and user convenience:
| ASTM-E380 |
| Standard Practice for Use of the International System of Units (SI) (The Modernized Metric System) |
| References |
| (1.6) |
| SSP 41000 |
| System Specification for the International Space Station |
| References |
| (1.2) |
| SSP 41162 |
| United States On-orbit Segment Specification |
| References |
| (1.2) |
| SSP 41165 |
| Segment Specification For The Japanese Experiment Module |
| References |
| (1.2) |
| SSP 50035 |
| NASDA-NASA Bilateral Integration and Verification Plan |
| References |
| (4.0, 4.1, 4.3) |
2-4
INTERFACE REQUIREMENTS
Section 3 contains the interface requirements for the SSMB to JEM. Unless otherwise noted herein, the requirements apply to all JEM elements including the JEM-Pressurized Module (PM), JEM-Exposed Facility, Experiment Logistics Module (ELM)-Pressurized Section (PS), ELM-Exposed Section, and the JEM Remote Manipulator System (RMS).
INTERFACE DESCRIPTION
on-orbit location The forward end of the JEM-PM shall berth to the port-side radial port of the SSMB Node 2.
STRUCTURAL INTERFACE
The SSMB Node 2 to JEM structural interface shall occur at the plane between the Passive Common Berthing Mechanism (PCBM) and the JEM-PM.
UTILITY INTERFACES
The utility interfaces between the SSMB Node 2 and the JEM shall occur at the JEM-PM pressure bulkhead feed-through.
SSMB NODE 2 TO JEM INTERFACE REQUIREMENTS
STRUCTURAL/MECHANICAL INTERFACES
COMMON BERTHING MECHANISM INTERFACES
CBM ATTACHMENT
The SSMB Node 2 Active Common Berthing Mechanism (ACBM) shall attach to the JEM-PM PCBM.
ON-ORBIT INTERFACE LOADS
Node 2 shall support the induced load environment defined in the current revision of the Node 2 Prime Item Development Specification (PIDS). The JEM-PM shall withstand on-orbit transient induced limit loads at the SSMB to JEM-PM interface not to exceed the values listed in Tables 3.2.1.1.2-1, JEM/Node 2 Resultant Berthing Contact Forces and 3.2.1.1.2-2, JEM/Node 2 Coupled Interface Loads. The CBM Berthing contact point contact loads between the SSMB and JEM-PM defined in Table 3.2.1.1.2-3, Contact Point Contact Loads (To be Used for Common Berthing Mechanism Design Only) shall be used for CBM design only. The on-orbit induced peak limit loads at the JEM-PM/Passive CBM interface are applied as shown in Figure 3.2.1.1.2-1, JEM-PM Interface Loads Application. The load components within each load case shall be applied concurrently in any combination of positive and negative values for each component. The associated on-orbit transient load spectrum is shown in Table 3.2.1.1.2-4, On-orbit Transient Loads Spectra and is referenced to the maximum design loads.
FIGURE 3.2.1.1.2-1 JEM-PM INTERFACE LOADS APPLICATION
TABLE 3.2.1.1.2-1 JEM/Node 2 Resultant Berthing Contact Forces
| Axial (lb) |
| RSS Shear (lb) |
| RSS Moment (in-lb) |
| Torsion (in-lb) |
| -9,170 |
| 750 |
| 141,000 |
| 27,900 |
| -9,160 |
| 840 |
| 125,400 |
| 35,500 |
| -9,090 |
| 570 |
| 160,700 |
| 20,400 |
| -9,160 |
| 770 |
| 126,100 |
| 33,500 |
| -1,990 |
| 1,490 |
| 12,400 |
| 95,800 |
| -1,980 |
| 1,210 |
| 13,500 |
| 99,400 |
| -1,950 |
| 1,170 |
| 12,800 |
| 111,400 |
| -7,520 |
| 1,520 |
| 102,300 |
| 55,400 |
| -7,320 |
| 1,870 |
| 87,800 |
| 72,200 |
TABLE 3.2.1.1.2-2 JEM/Node 2 Coupled Interface Loads
| Axial (lb) |
| RSS Shear (lb) |
| RSS Moment (in-lb) |
| Torsion (in-lb) |
| 2,160 |
| 440 |
| 200,700 |
| 23,600 |
| 770 |
| 940 |
| 334,400 |
| 86,900 |
| 280 |
| 740 |
| 349,700 |
| 84,600 |
| 990 |
| 920 |
| 114,200 |
| 245,700 |
| 1,260 |
| 1,430 |
| 228,500 |
| 118,500 |
| 1,110 |
| 2,070 |
| 94,800 |
| 60,300 |
| 600 |
| 1,000 |
| 303,600 |
| 79,500 |
| 1,190 |
| 1,970 |
| 285,900 |
| 141,800 |
TABLE 3.2.1.1.2-3 Contact Point Contact Loads (To be used for Common berthing mechanism design only)
| Alignment Pin Load (lb) |
| Shear Guide Load (lb) |
| Plunger Load (lb) |
| 1,320 |
| 290 |
| 570 |
TABLE 3.2.1.1.2-4 On-orbit Transient Loads Spectra
Amplitude Tier
| (% of Design-to Load) |
| Cycle Count |
| 90-100 |
| 2 |
| 80-90 |
| 6 |
| 70-80 |
| 44 |
| 60-70 |
| 1,300 |
| 50-60 |
| 1,700 |
| 40-50 |
| 8,000 |
| 30-40 |
| 19,000 |
| 20-30 |
| 82,000 |
| 15-20 |
| 106,000 |
| 10-15 |
| 240,000 |
| 5-10 |
| 1,000,000 |
| 2.5-5 |
| 17,000,000 |
3-20
ON-ORBIT THERMAL STRUCTURAL LOADS
ON-ORBIT THERMALLY INDUCED STRUCTURAL LOADS
The SSMB Node 2 and JEM-PM shall support the induced loads associated with maximum ACBM to PCBM temperature differential at the time of CBM berthing, combined with the induced loads associated with a maximum ACBM to PCBM transient (steady state) temperature differential or the loads specified in Table 3.2.1.1.3.1-1, On-orbit Thermally Induced Structural Loads, applied at the ACBM to PCBM interface plane.
TABLE 3.2.1.1.3.1-1 ON-ORBIT THERMALLY INDUCED STRUCTURAL LOADS
| On-orbit Thermal Loads |
| CASE 1 |
| CASE 2 |
| CASE 3 |
| CASE 4 |
FRAD (Radial, Positive Outboard, lb) MTANG (Tangential, in-lb) 15,500 5,280 15,500 5,280 -15,500 -5,280 -15,500 -5,280
Axial (ZREF, lb)
Bolt Position 1 -205 -900 -320 -680 -430 -330 -290 -780 -810 -215 -280 -975 -260 -370 -815 -220 -205 -900 -320 -680 -430 -330 -290 -780 -810 -215 -280 -975 -260 -370 -815 -220
Notes:
1) The load case is to be applied that maximizes internal loads in the structure.
2) The radial shear and tangential moment loads are to be applied at each of the ACBM to PCBM powerbolt attachment locations, simultaneously, resulting in zero net shear and moment loads at the interface plane. The powerbolt attachment locations are identified in Table 3.2.1.1.3.1-2, ACBM/PCBM Interface Bolt Locations, and Figure 3.2.1.1.3.1-1, ACBM/PCBM Interface Plane Attachment Bolt Locations.
3) The axial loads are to be combined with the shear and moment loads at each of the powerbolt locations of Table 3.2.1.1.3.1-2. The axial loads are to be applied simultaneously and sequentially at the powerbolt clock angle, achieved by clocking both clockwise and counterwise that maximizes internal element loads.
TABLE 3.2.1.1.3.1-2 ACBM/PCBM INTERFACE BOLT LOCATIONS
INTERFACE
BOLT
| RADIUS (in) |
| θ (deg) |
| A |
| 36.639 |
| 11.25 |
| B |
| 36.639 |
| 33.75 |
| C |
| 36.639 |
| 56.25 |
| D |
| 36.639 |
| 78.75 |
| E |
| 36.639 |
| 101.25 |
| F |
| 36.639 |
| 123.75 |
| G |
| 36.639 |
| 146.25 |
| H |
| 36.639 |
| 168.75 |
| I |
| 36.639 |
| 191.25 |
| J |
| 36.639 |
| 213.75 |
| K |
| 36.639 |
| 236.25 |
| L |
| 36.639 |
| 258.75 |
| M |
| 36.639 |
| 281.25 |
| N |
| 36.639 |
| 303.75 |
| O |
| 36.639 |
| 326.25 |
| P |
| 36.639 |
| 348.75 |
FIGURE 3.2.1.1.3.1-1 ACBM/PCBM INTERFACE PLANE ATTACHMENT BOLT LOCATIONS
ON−ORBIT THERMALLY INDUCED LOADS SPECTRA
The SSMB Node 2 and JEM−PM shall withstand the thermally induced structural loads due to the maximum on−orbit temperature difference across the ACBM to PCBM interface or the loads specified in Table 3.2.1.1.3.2−1, On−Orbit Transient Thermal Loads, when cycled fully reversible according to the loads spectra of Table 3.2.1.1.3.2−2, On−Orbit Thermally Induced Loads Spectrum, about the mean berthing loads of Table 3.2.1.1.3.2−3, On−Orbit Thermally Induced Mean Berthing Loads.
TABLE 3.2.1.1.3.2-1 ON-ORBIT TRANSIENT THERMAL LOADS
| CASE 1 |
| CASE 2 |
| CASE 3 |
| CASE 4 |
FRAD (Radial, Positive Outboard, lb) MTANG (Tangential, in-lb) +2000 +680 +2000 +680 -2000 -680 -2000 -680
Axial (ZREF, lb)
Bolt Position 1 -205 -900 -320 -680 -430 -330 -290 -780 -810 -215 -280 -975 -260 -370 -815 -220 -205 -900 -320 -680 -430 -330 -290 -780 -810 -215 -280 -975 -260 -370 -815 -220
Notes:
1) The load case is to be applied that maximizes internal loads in the structure.
2) The radial shear and tangential moment loads are to be applied at each of the ACBM to PCBM powerbolt attachment locations, simultaneously, resulting in zero net shear and moment loads at the interface plane. The powerbolt attachment locations are identified in Table 3.2.1.1.3.2-2 and Figure 3.2.1.1.3.1-1.
3) The axial loads are to be combined with the shear and moment loads at each of the powerbolt locations of Table 3.2.1.1.3.1-2. The axial loads are to be applied simultaneously and sequentially at the powerbolt clock angle, achieved by clocking both clockwise and counterwise that maximizes internal element loads.
TABLE 3.2.1.1.3.2-2 ON-ORBIT THERMALLY INDUCED LOADS SPECTRUM (2 PAGES)
LOAD SPECTRUM
| Amplitude Tier % |
| Cycle Count |
| 90-100 |
| 150 |
| 80-90 |
| 250 |
| 70-80 |
| 500 |
| 60-70 |
| 5000 |
| 50-60 |
| 50000 |
| 40-50 |
| 30000 |
| 30-40 |
| 20000 |
| 20-30 |
| 5100 |
| 10-20 |
| 0 |
| 0-10 |
| 0 |
TABLE 3.2.1.1.3.2-3 ON-ORBIT THEMALLY INDUCED MEAN BERTHING LOADS
| CASE 1 |
| CASE 2 |
FRAD (Radial, Positive Outboard, lb) MTANG (Tangential, in-lb) +13,500 +4600 -13,500
- 4600
Notes:
1) The load case is to be applied that maximizes internal loads in the structure.
2) The radial shear and tangential moment loads are to be applied at each of the ACBM to PCBM powerbolt attachment locations, simultaneously, resulting in zero net shear and moment loads at the interface plane. The powerbolt attachment locations are identified in Table 3.2.1.1.3.1-2 and Figure 3.2.1.1.3.1-1.
UTILITY MECHANICAL INTERFACES
UTILITY INTERFACE PROVISIONS
The JEM-PM and the SSMB Node 2 interface design shall incorporate provisions for the mechanical connection of all data, video, audio, power, thermal coolant, atmosphere, oxygen, waste water, nitrogen, and atmosphere sample utilities between the JEM and the SSMB.
UTILITY MATING
All internal utility interface connections shall be designed to be manually mateable after opening the SSMB Node 2 hatch and before opening the JEM-PM hatch.
UTILITY ACCESSIBILITY
The JEM-PM internal utilities shall be accessible from inside the pressurized vestibule after the JEM-PM is berthed to the SSMB Node 2, so that mating of the JEM-PM to SSMB Node 2 internal utility interfaces can be performed by Intravehicular Activity (IVA). When the JEM-PM is berthed to the SSMB Node 2, the JEM-PM external utilities shall be accessible so that mating of the external utilities can be performed by Extravehicular Activity (EVA).
SSMB Node 2 internal utilities shall be accessible from inside the pressurized vestibule after the JEM-PM is berthed to the SSMB Node 2, so that mating of JEM-PM to SSMB Node 2 internal utility interfaces can be performed by IVA. Mating of external utilities shall be performed by EVA.
PASSAGEWAY CLEARANCE
For nominal operation, the clearance of the JEM-PM hatch and the SSMB Node 2 passage envelope for ingress/egress of the crew to/from the JEM-PM shall be no less than that shown in Figure 3.2.1.3-1, JEM-PM Hatch/SSMB Node 2 Passage Clearance Envelope.
FIGURE 3.2.1.3-1 JEM-PM HATCH/SSMB NODE 2 PASSAGE CLEARANCE ENVELOPE
DELETED
ELECTRICAL/ELECTRONIC INTERFACES
power interfaces ssmb node 2 power to jem-pm The SSMB Node 2 to JEM-PM interface shall provide 24.0 kW minimum electrical power capability from the SSMB to the JEM-PM via two independent power feeders at the JEM-PM bulkhead, channels JEM-PM 1 and JEM-PM 2.
power rating Each power feeder shall be rated at 12.0 kW minimum.
power quality The power quality of each power feeder at the SSMB Node 2 to JEM-PM interface shall comply with SSP 30482, Electrical Power Specifications and Standards: Volume I, EPS Electrical Performance Specifications, and provide the performance of Interface A with the following exceptions.
operational bus voltage The steady state bus voltage (not including transients or ripple) shall be from 120.6 to 126 Vdc.
voltage envelope The voltage transient in response to a 3.125 kW load change shall be within the envelope shown in Figure 3.2.2.1.1.2.2-1, Voltage Envelope.
FIGURE 3.2.2.1.1.2.2-1 VOLTAGE ENVELOPE
abnormal voltage envelope The voltage transient in response to an abnormal condition, as described in SSP 30482, shall be within the envelope shown in Figure 3.2.2.1.1.2.3-1, Abnormal Voltage Envelope.
FIGURE 3.2.2.1.1.2.3-1 ABNORMAL VOLTAGE ENVELOPE
source output impedance When a single Direct Current to Direct Current Converter Unit (DDCU) is providing power, the magnitude and phase of the source impedance shall be within the acceptable region shown in Figure 3.2.2.1.1.2.4-1, Source Output Impedance (Single DDCU). When two DDCUs, operating in parallel, are providing power, the magnitude and phase of the source impedance shall be within the acceptable region shown in Figure 3.2.2.1.1.2.4-2, Source Output Impedance (Parallel DDCUs). For magnitude, the acceptable region is at or below the maximum values shown. For phase, the acceptable region is bounded by the maximum and minimum values shown.
FIGURE 3.2.2.1.1.2.4-1 SOURCE OUTPUT IMPEDANCE (SINGLE DDCU)
FIGURE 3.2.2.1.1.2.4-2 SOURCE OUTPUT IMPEDANCE (PARALLEL DDCUs) phase and gain margins The load impedance shall maintain 3dB gain and 30 degree phase margins with respect to the source impedance of Figure 3.2.2.1.1.2.4-1 for a single DDCU and Figure 3.2.2.1.1.2.4.-2 for two parallel DDCU’s. The margin will be maintained if the magnitude of the load impedance is 3dB above the source impedance magnitude from 100Hz to 100kHz. In frequencies where the load impedance is not 3dB greater than the source impedance, the separation between the load impedance phase and the source impedance phase shall not exceed 150 degrees. The source impedance phase is the entire region from maximum phase to minimum phase on Figures 3.2.2.1.1.2.4-1 and 3.2.2.1.1.2.4-2.
output protection Each power feeder output shall be overcurrent protected.
DELETED
FIGURE 3.2.2.1.1.4-1 DELETED
fault current return The SSMB Node 2 to JEM-PM interface shall provide a single-fault tolerant fault-current return path.
return grounding Each power feeder return shall be referenced to chassis at the SSMB Node 2 source.
bonding The SSMB Node 2 to JEM-PM interface shall be in accordance with SSP 30245, Space Station Electrical Bonding Requirements, for a Class R bond.
Power feeder isolation Each SSMB Node 2 to JEM-PM power feeder shall provide power from independent sources.
power outlets The JEM-PM shall provide 0.4 kW minimum to each power outlet in the JEM-PM.
The SSMB shall provide 0.4 kW minimum to the power outlet in the SSMB United States Laboratory (USL).
power rating Each power outlet power feeder shall be rated at 0.4 kW minimum.
power quality The power quality at each power outlet power feeder shall comply with SSP 30482, Volume I and provide the performance of Interface C.
output protection overcurrent protection Each power outlet output shall provide overcurrent protection.
deleted
DELETED
available outlets The JEM-PM shall provide 5 power outlets for operating NASA Crew Health Care System (CHeCS) equipment, NASA portable computers, and the following NASA portable equipment:
| A. | Vacuum Cleaner |
| B. | Fluid Servicer |
The SSMB shall provide 1 power outlet for operating JAXA portable computers.
avionics INTERFACES This section describes the physical, functional and data interfaces necessary to provide command and data communications between the SSMB and the JEM. The detailed interfaces such as message formats, data formats, data definitions, and interface timing will be specified in SSP 42000. The detailed communication protocol requirements and interface parameter definitions are contained in SSP 41151 Appendix D.
Functional ALLOCATION data interface
COMMAND INTERFACE
| A. | Schedule execution |
| 1. | SSMB shall execute the Space Station (SS) master timeline. |
| 2. | JEM shall execute JEM local Onboard Data File (ODF) initiated by Tier 1 commands. |
| 3. | JEM shall send execution status of JEM ODF to SSMB for ground. |
| B. | Command distribution |
| 1. | SSMB shall transfer JEM commands to the JEM from the ground and SS portable computer. |
| C. | Command log |
| 1. | SSMB shall log all commands. |
| 2. | JEM shall log all JEM commands. |
| D. | Command response |
| 1. | JEM shall send back command response. |
| 2. | JEM shall provide parameters related to the command execution in the cyclic status data. |
| 3. | SSMB shall provide the capability to downlink command response data from JEM. |
CAUTION AND WARNING (C&W)
| A. | Alarm annunciation and suppression |
| 1. | JEM shall notify alarm class 1-3 event of the Command and Control (C&C) Multiplexer/Demultiplexer (MDM) when an event is detected, changes alarm level, and returns to normal condition. |
| 2. | SSMB shall provide the capability for Tier 1 to inhibit each JEM Caution and Warning (C&W). |
| 3. | SSMB shall provide the capability for Tier 1 to suppress each JEM C&W audio annunciation. |
| 4. | JEM shall turn on JEM Master Alarm Light (MAL) by Tier 1 command. |
| 5. | SSMB shall annunciate C&W, if the event annunciation is not suppressed: |
| a. | SSMB shall generate C&W commands to turn on lights on JEM MALs. |
| b. | SSMB shall generate commands for audio alarms on JEM Audio Terminal Units (ATUs). |
| 6. | SSMB shall notify ground of C&W status. |
| B. | C&W logging and log display |
| 1. | SSMB shall log all C&W. |
| 2. | SSMB shall provide fault summary display to SS portable computers. |
| C. | C&W limit changes |
| 1. | JEM shall provide the capability for Tier 1 to change limit values for each event detection. |
| D. | Acknowledge |
| 1. | SSMB shall detect C&W Acknowledge input from the JEM MAL panel. |
| 2. | SSMB shall generate commands to turn-off the JEM MAL. |
| E. | Manual Activation |
| 1. | SSMB shall detect C&W Manual Activation input from the JEM MAL panel. |
| 2. | SSMB shall generate C&W. |
FILE MANAGEMENT
| A. | SSMB shall transfer file data from/to ground to/from JEM. |
| B. | File transfer shall be controlled and managed by ground. |
TELEMETRY
| A. | S-band telemetry |
| 1. | JEM shall send all core Health and Status (H&S) and payload safety data periodically for S-band telemetry. |
| 2. | SSMB shall select telemetry data out of collected data. |
| 3. | SSMB shall format all telemetry frame and downlink them. |
| 4. | SSMB shall continuously record core telemetry, including JEM core telemetry. |
| B. | Ku-band telemetry |
| 1. | SSMB shall allocate high rate data link (HRDL) to JEM to downlink Japanese payload H&S and science data as Ku-band telemetry. |
| 2. | SSMB shall record Ku-band telemetry data, including JEM Ku-band telemetry data during communications outages. |
Ancillary data service
| A. | SSMB shall send SSMB ancillary data to JEM. |
| B. | JEM shall distribute the SSMB ancillary data to Japanese payloads. |
| C. | SSMB shall select necessary ancillary data out of collected data from JEM and distribute them to United States (US) payloads and to the ground. |
| D. | JEM shall send to the SSMB the position, orientation, and mass of manipulated objects. |
NOT APPLICABLE
Modes
| A. | Relationship of SSMB modes and JEM modes |
| 1. | SSMB mode and JEM mode shall be consistent. |
| B. | Mode transition rules |
| 1. | SSMB shall change SSMB mode according to schedule or crew/ground command and send JEM necessary commands. |
| 2. | JEM shall change JEM mode or inhibit/enable JEM function according to Tier 1 command in order to keep consistency with SSMB mode. |
JEM Activation
| A. | SSMB shall support JEM activation function |
| B. | SSMB shall monitor JEM activation status. |
fault detection isolation and recovery (FDIR)
| A. | SSMB shall detect a failure with the JEM Control Processor (JCP) and reconfigure communications with the backup JCP. |
| B. | SSMB shall shut off JEM power, when JEM requests it. |
| C. | SSMB shall send JEM necessary commands to reconfigure JEM. |
US PCS Functional Interface The SSMB shall provide US PCS crew displays for the JEM systems as required for overall International Space Station control and monitoring, including the following items:
| A. | Control and monitoring of the JEM systems when the JEM Systems Laptop Terminal is unavailable. |
| B. | Control and monitoring of the JEM systems related to Safety and Emergency, which are necessary for the crew to control centrally. |
control bus cb ext-1 and cb ext-2 interfaces Two MIL-STD-1553B, Digital Time Division Command/Response Multiplex Data Bus, control buses, CB EXT-1 and CB EXT-2, shall be provided between the SSMB and the JEM for JAXA provided computers, US portable computers, and CBM components as shown in Figure 3.2.2.2.2-1, Control Bus CB EXT-1 and CB EXT-2 Interfaces.
failure tolerance Each MIL-STD-1553B control bus interface shall be provided on a one-failure tolerant path as specified in Figure 3.2.2.2.2-1.
FIGURE 3.2.2.2.2-1 CONTROL BUS CB EXT-1 AND CB EXT-2 INTERFACES
link protocol Each control bus interface link shall use the MIL-STD-1553B for electrical characteristics and protocol.
electrical ports for us portable computers The control buses shall interconnect with two power outlets located in the JEM-PM for the US portable computers supporting SSMB operations. The power characteristics of the power outlets are defined in Section 3.2.2.1.2.
bus control The buses’ transactions shall be controlled by the SSMB MIL-STD-1553B bus controller.
bus time distribution Time shall be provided at the SSMB to JEM control buses’ interface. The accuracy of the distributed time is max. 2.5 msec later than the Global Positioning System based time reference (under nominal conditions).
Note: These statements assume that the time data from the external time source has been available for at least a 24 hour period since the C&C MDM was commanded to use the time source and that the external time data continues to be available to the station.
time distribution data rates The control buses shall support time distribution and synchronization with the transaction rates and data volumes as specified in Table 3.2.2.2.2.5.1-1, SSMB to JEM Interface.
TABLE 3.2.2.2.2.5.1-1 SSMB TO JEM INTERFACE
| Functional Interface Identification |
| Transaction Rate |
| Bits per Transaction/Bits per Second (Note 1)/ Subaddresses Required |
| Broadcast Time |
| 1 Hz |
| 0.5K/0.5K/1 |
| Broadcast Sync (with data) |
| 10 Hz |
| 32/320/1 |
Note:
1) Data Volumes include overhead associated with logical protocol.
time code definition See SSP 41151, Appendix D, paragraph D.3.3.1.5.2 communications services The control bus interfaces shall provide the following communication services:
| A. | Data transmission with error detection and retransmission |
| B. | Data transmission without error detection and without retransmission |
| C. | Data transmission with sequence check and retransmission |
| D. | Data transmission without sequence check and without retransmission |
control bus functional interfaces The JEM and the SSMB control bus interfaces shall provide bi-directional links on the control bus for the following types of commands and data:
element level control commands All commands including the following shall be sent from the SSMB to the JEM:
| A. | JEM mode and inhibit commands as related to SS modes |
| B. | JEM system commands |
| C. | JEM procedure execution commands |
| D. | JEM depressurization/repressurization commands |
| E. | JEM MAL on/off commands |
| F. | JEM payload commands |
| G. | File management commands |
| H. | JEM reconfiguration commands related SS-wide Fault Detection and Isolation Recovery (FDIR) |
| I. | Checkout Commands |
Command response for SSMB to JEM commands shall be sent back to the SSMB for each command sent to the JEM.
normal status data All normal status data such as JEM mode, system health and status data and payload safety data shall be sent from the JEM to the SSMB to be used for downlink telemetry, continuous recording, US portable computer display, ancillary data service and data monitoring in the SSMB.
CAUTION AND WARNING
The C&W data shall be sent to the SSMB from the JEM and shall be displayed, downlinked, logged and annunciated in the SSMB. C&W data shall indicate the following types of information:
| A. | Event name |
| B. | Event class |
| C. | Event location |
| D. | Message Identification |
| E. | Time |
message The following types of messages shall be transferred from the JEM to the SSMB:
| A. | C&W acknowledgement |
| B. | Display message |
| C. | Application message (e.g., JEM shut down request) |
SS Ancillary data SS ancillary data such as SS mode and Guidance, Navigation and Control data shall be sent from the SSMB to the JEM.
data wrap Not Applicable.
SSMB AND US portable computer (LOCATED IN JEM) INTERFACE Information sent to the US portable computer shall include the following types of data and commands:
| A. | Integrated plan |
| B. | Fault summary log |
| C. | Station-wide display data |
| D. | Plan related commands |
| E. | Station-wide related commands |
control and monitor functions Control commands and monitoring data for the following items shall be initiated and monitored by the SSMB software or crew members from US portable computers:
| A. | JEM command and data during activation/deactivation via the Data Interface Unit (DIU)-III A or (DIU)-III B |
| B. | CBM control commands and monitor data |
file transfer data interface The SSMB and the JEM control bus shall transfer file data between the JEM and ground.
SPLIT SCREEN DATA INTERFACE
The SSMB Video System connectivity status data related to the JEM split screen function shall be sent from the SSMB to JEM to support RMS operations.
Video split screen requests shall be sent from the JEM to SSMB to support RMS operations.
data rates Each control bus interface shall support a data/command transaction rate as specified in…
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