SSP_50316-Rev_C.docx

Oxygen Generation System Rack to Node 3 Interface Control Document

International Space Station Program

Revision C October 20, 2010

Type 1 NASA Approved

National Aeronautics and Space Administration International Space Station Program Johnson Space Center Houston, TX Contract # PIC-NNJ09GA18B DRD # PIC-SI-01

European Space Agency

REVISION AND HISTORY PAGE

REV.

DESCRIPTION

PUB. DATE

Incorporates the following IRNs EFF 06/05/01: IRN 50316-01 (PIRN 50316-NA-0003), IRN 50316-02 (PIRN 50316-NA-0004C), IRN 50316-03 (PIRN 50316-NA-0005B), IRN 50316-04 (PIRN 50316-NA-0006), IRN 50316-05 (PIRN 50316-NA-0009), IRN 50316-06 (PIRN 50316-NA-0011), IRN 50316-07 (PIRN 50316-NA-0012), IRN 50316-08 (PIRN 50316-NA-0014)

03-11-02

CCBD ND3-00-0017 modifies pages 3-14 & 3-34 in accordance with the IRN 50316-09, EFF 05-23-02

CCBD ND3-00-0017 modifies pages viii, x, 3-15 & 3-35 in accordance with the IRN 50316-10, EFF 05-23-02

CCBD ND3-00-0017 modifies pages 3-17, 3-18, 3-19, 3-22 and 3-23 in accordance with the IRN 50316-11, EFF 05-23-02

CCBD ND3-00-0017 modifies pages 3-12 and 3-32 in accordance with the IRN 50316-12, EFF 05-23-02

CCBD ND3-00-0018 modifies pages 2-2, 3-1, 3-3, 3-6, 3-12, 3-16 through 3-20, 3-23, 3-25, 3-32, 3-37 through 3-39, 3-41, A-1, and A-3 in accordance with IRN 50016-13 EFF 06/27/02

CCBD ND3-00-0018 modifies pages 3-15 and 3-36 in accordance with IRN 50016-14 EFF 06/27/02

CCBD ND3-00-0018 modifies page 3-9 in accordance with IRN 50016-15 EFF 06/27/02

SSP 50316C October 20, 2010

SSP 50316C October 20, 2010 ii

REVISION AND HISTORY PAGE - Continued

REV.

DESCRIPTION

PUB. DATE

CCBD ND3-00-0019 modifies pages 3-13, 3-14, 3-15, 3-33, 3-34, 3-35 in accordance with the IRN 50316-16, EFF 9/19/02

CCBD ND3-00-0019 modifies pages viii, ix, xi, xii, 3-8, 3-16, 3-26, 3-28, 3-37, & 3-42 and adds pages 3-16.1, 3-16.2 and 3-16.3 in accordance

With the IRN 50316-17, EFF 9/19/02

CCBD ND3-00-0025 & ND3-00-0028 approve Revision B to replace Revision A in its entirety and incorporate the following IRNs, EFF 7/17/03: IRN 50316-09 (PIRN 50316-NA-0002B); IRN 50316-10 (PIRN 50316-NA-0007): IRN 50316-11 (PIRN 50316-NA-0015); IRN 50316-12 (PIRN 50316-NA-0018); IRN 50316-13 (PIRN 50316-NA-0016B); IRN 50316-14 (PIRN 50316-NA-0017A); IRN 50316-15 (PIRN 50316-NA-0019); IRN 50316-16 (PIRN 50316-NA-0020B); IRN 50316-17 (PIRN 50316-NA-0021A); IRN 50316-18 (PIRN 50316-NA-0013A): and IRN 50316-19 (PIRN 50316-NA-0022) 06-24-05

Revision C incorporates the following approved PIRNs:

PIRN SSCN

PIRN 50316-ES-0001 012698

PIRN 50316-NA-0023 012698

PIRN 50316-NA-0024 008007

PIRN 50316-NA-0025C 012698

PIRN 50316-NA-0026A 012698

PREFACE

The contents of this document are intended to be consistent with the tasks and products to be prepared by Program participants. The Oxygen Generation System Rack to Node 3 Interface Control Document, shall be implemented on all new ISS contractual and internal activities and shall be included in any existing contracts through contract changes. This document is under the control of the Vehicle Control Board as designated by the Space Station Control Board, and any changes or revisions will be approved by the Vehicle Control Board Chairperson.

Kevin Window Vehicle Office Manager ISS Program Office

INTERNATIONAL SPACE STATION PROGRAM

Oxygen Generation System Rack to Node 3 Interface Control Document

CONCURRENCE

OM/ARES

(PRINT NAME)

ORG

/s/ Gregg D. Singer

3/28/11

(SIGNATURE)

DATE

OM/ARES

(PRINT NAME)

ORG

/s/ Sharon E. Hock

3/28/11

(SIGNATURE)

DATE

OM/NASA

(PRINT NAME)

ORG

/s/ Tyson E Richmond

4-5-11

(SIGNATURE)

DATE

OM/ARES

(PRINT NAME)

ORG

/s/ Victoria C. Rodriguez

3/28/2011

(SIGNATURE)

DATE

INTERNATIONAL SPACE STATION PROGRAM

oxygen generation system rack to Node 3 interface control DOCUMENT

LIST OF CHANGES

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

Table of Contents

List of figures

3.1.1.1-1 Oxygen Generation System Rack to Node 3 Functional Interface

list of tables

appendix list

A ABBREVIATIONS AND ACRONYMS A - 1

SSP 50316C October 20, 2010 iii xv iv

INTRODUCTION

Purpose The purpose of this document is to define the physical, functional, and environmental interface between the Oxygen Generation System Rack (OGS) and the Node 3.

Scope The scope of this document is limited to the interfaces between the OGS and the Node 3.

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

delegation of authority NASA may delegate the responsibility for preparation and maintenance of this ICD.

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

3-6

DOCUMENTS

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

(Reference 3.1.4.1.1)

MIL-STD-1553B

Rev B Notice 2 8-Sept-1986 Digital Time Division Command/Response Multiplex Data Bus (Reference 3.2.1.6.1, 3.2.1.6.1.1, 3.2.1.6.1.2, 3.2.1.6.1.2.1, 3.2.1.6.1.3, 3.2.1.6.1.4, 3.2.2.5.2, 3.2.2.5.2.1, 3.2.2.5.2.2, 3.2.2.5.2.2.1, 3.2.2.5.2.3, 3.2.2.5.2.4)

(Reference Table 3.2.1.6-1 )

(Reference 3.2.1.7)

(Reference 3.1.1.1)

(Reference 1.5)

(Reference 3.2.1.5.1.1, 3.2.2.5.1.1)

(Reference 3.2.1.6)

(Reference 3.2.1.4.2.2.1, 3.2.1.4.3.1.1, 3.2.2.4.2.2.1, 3.2.2.4.3.1.1)

(Reference 3.2.1.1, 3.2.1.2.1, 3.2.1.3, 3.2.1.8.1, 3.2.1.8.2, 3.2.1.8.2.1, 3.2.1.8.3, 3.2.1.8.4.1.4, 3.2.2.1, 3.2.2.2.1, 3.2.2.3, 3.2.2.7.2, 3.2.2.7.3, 3.2.2.7.4.1.4, Figure 3.2.1.3-1)

(Reference 3.1.3, 3.2.1.3, 3.2.1.8.1, 3.2.1.8.4.1.4, 3.2.2.3, 3.2.2.7.1, 3.2.2.7.4.1.4, Figure 3.2.1.3-1)

(Reference 1.3)

(Reference 3.2.1.3.1.1, 3.2.2.3.1.1)

(Reference 3.2.1.7)

(Reference 3.2.2.5.3)

(Reference Tables 3.2.1.5-3, 3.2.1.5-4)

(Reference Tables 3.2.1.6-1)

(Reference Table 3.2.1.4-2)

Interfaces

GENERAL

INTERFACE DESCRIPTION

The interfaces specified herein are applicable to the OGS and the Node 3. The Node 3 will provide power, data, thermal coolant, feed water, carbon dioxide (scar), nitrogen, environmental, cabin atmosphere, and the structural/mechanical interfaces at the rack location. The OGS will provide data, return thermal coolant, waste nitrogen/hydrogen, waste water, waste methane/carbon dioxide (scar), cabin oxygen, environmental, cabin atmosphere and structural/mechanical interfaces. A functional interface diagram is shown in Figure 3.1.1.1-1 Oxygen Generation System Rack to Node 3 Functional Interface Diagram.

The Node 3 to OGS interface plane is defined at the rack interface panel and rack structural/mechanical attach points. Note: The only exception is oxygen released to the cabin and atmosphere exchange between the Node 3 and OGS. In these cases the interface plane is not relevant.

Figure 3.1.1.1-1 Oxygen Generation System Rack to Node 3 Functional Interface Diagram

OXYGEN GENERATION SYSTEM Description The OGS is contained in an International Standard Payload Rack (ISPR) containing the Oxygen Generation Assembly (OGA), Power Supply Module, Remote Power Distribution Assembly (RPDA)/Remote Power Controller Module (RPCM), Rack Interface Panel, Bracket Assembly/Coldplate mounting, Rack Power Switch (RPS), Smoke Detector, Avionics Air Assembly (AAA), coldplates, rack structure, and scarring for the Carbon Dioxide Reduction Assembly (CRA). The OGS Rack is fully compatible with the ISPR attachment mechanisms and envelopes.

Node 3 DESCRIPTION The Node 3 is a pressurized element used to supplement and in some cases replace the Habitation Module’s functions for crew accommodations. The Node 3 will contain Environmental Control Life Support System (ECLSS), Waste and Hygiene Compartment (W&HC), and Avionics Racks.

INTERFACE RESPONSIBILITIES

RESPONSIBILITY FOR Oxygen Generation System Unless otherwise noted herein, Marshall Space Flight Center (MSFC), under agreement with the International Space Station (ISS) Program Office, has the responsibility for designing the OGS to the interface requirements herein.

RESPONSIBILITY FOR Node 3 Unless otherwise noted herein, Agenzia Spaziale Italiana has the responsibility for designing the Node 3 to the interface requirements herein.

RESPONSIBILITY FOR interconnect cabling/tubing/connectors The Node 3 is responsible for providing interconnecting cabling/tubing/connectors to the rack interface panel. The OGS is responsible for providing rack interface panel connectors. Male halves of the connectors are provided at the rack interface panel of the OGS. Female connector halves are parts of the Node 3.

COORDINATE SYSTEMS

The coordinate system applicable to the Node 3 to OGS interface is as defined in SSP 41017, Part 2, paragraph 3.1.3.

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

Tolerances Linear tolerances on English dimensions are as indicated in Table 3.1.4.1-1 Linear Tolerances. Linear tolerances on metric dimensions are derived from English measurements and tolerances as defined in ASTM E380, Standard Practice for Use of the International System of Units (The Modernized Metric System), section 4.5. Angular tolerances are ±0.1° on all angles unless otherwise stated.

Table 3.1.4.1-1 Linear Tolerances

INTERFACE REQUIREMENTS

OXYGEN GENERATION SYSTEM RACK REQUIREMENTS

ENVELOPE REQUIREMENTS

The OGS shall comply with the envelopes defined in SSP 41017, Part 1, paragraph 3.2.1.1, except for the presence of the Rack Interface Panel specified in 3.2.1.3.1.

MASS Properties

MASS

The OGS shall comply with the mass requirements defined in SSP 41017, Part 1, paragraph 3.2.1.2.

CENTER OF MASS

Deleted.

STRUCTURAL/MECHANICAL ATTACHMENT

The structural/mechanical interface description shall be as defined in SSP 41017, Part 1, paragraph 3.2.1.3.

The OGS structural/mechanical interface is as defined in SSP 41017, Part 2, paragraphs 3.2 and 3.3.

Rack Interface Panel The OGS shall incorporate provisions for a rack interface panel for connection of utilities between OGS and Node 3. The interface plane is at the rack interface panel located on the OGS systems rack as shown in Figure 3.2.1.3-1 OGS/Node 3 Rack Interface Plane. Figure 3.2.1.3-2, OGS Specific Panel Connector Locations, defines the rack interface panel layout.

Accessibility The OGS to Node 3 utility shall comply with accessibility requirements of SSP 50005.

Functional Interface Plane is the external surface of the Rack Interface Panel on the OGS Rack.

OGS

Rack Interface Panel in Node 3

L C

L C Z Rack Attach Point X Y

Center Point of Surface of the Rack Interface Panel See SSP 41017 for Datum point definition Datum

Coordinates from Rack Datum point X = 19.63 Y = -11.12 Z = 5.19

Figure 3.2.1.3-1 OGS/Node 3 Rack Interface Plane

NOTE 1: View of RIP is from front face of rack.

NOTE 2: All Connector Master Keyways are in the 12:00 o’clock position.

Figure 3.2.1.3-2 OGS Specific Panel Connector Locations SSP 50316C October 20, 2010

FLuid Interfaces Fire Suppressant The OGS shall receive fire suppressant via injection into the front panel of the rack.

RECEIVE COOLANT

The OGS shall receive single-phase moderate temperature loop water coolant from the Node 3 for active heat acquisition and transport. The receive coolant interfaces are at the rack interface panel shown in Figure 3.2.1.3-2 OGS Specific Panel Connector Locations.

OGS heat transport capability

OGS HEAT LOAD

The Heat Load rejected to the Moderate Temperature Loop (MTL) by the OGS Rack, including CRA, shall be limited to 2880 watts.

receive Coolant characteristics receive coolant specification The OGS shall receive coolant with the requirements of SSP 30573, Fluid Procurement and Use Control Specification.

receive coolant temperature The OGS shall receive moderate temperature coolant at 61 to 65 deg Fahrenheit (16 to 18.3 deg Celsius).

RECEIVE COOLANT PRESSURE

The OGS shall receive moderate temperature coolant at an operating pressure range of 18 to 100 psia (184 to 690 kPa).

RECEIVE coolant Flow rate The OGS shall receive moderate temperature loop coolant at a minimum flow rate of 483 lb./hr.

RECEIVE coolant quantity The OGS shall contain no more than 10.0 lbs. (4.54 kg) of water in its internal cooling loop for the moderate temperature loop.

RECEIVE coolant leakage rate The OGS maximum coolant leakage rate, for moderate temperature loop coolant received at the maximum pressure specified in paragraph 3.2.1.4.2.2.3, shall be 9E-3 scc/hr.

Receive Coolant connector The OGS Rack shall receive coolant at the Rack Interface Panel via a “MT Water Supply” connector as defined in Table 3.2.1.4-2 Fluid Interface Connectors.

SSP 50316C October 20, 2010

3-8

Table 3.2.1.4-2 Fluid Interface Connectors

(1) Categories as defined in Boeing drawing 683-16348.

(2) Vendor part numbers and keying as defined by Symetrics drawing 200.

(3) Actual vendor part number will be different to meet H2 material compatibility requirements. Functional interface remains unchanged from noted part number.

(4) All vendor category 2 quick disconnects have been qualified at 250 psia operational, 500 psia proof, and 1000 psia burst.

(5) The Waste Gas (CO2/CH4) interface was included as a scar for CO2 Reduction. However, the final design of the CO2 Reduction Assembly does not utilize this interface, and the associated connectors are to be left unmated.

RETURN COOLANT

The OGS shall return moderate temperature coolant to the Node 3. The return coolant interfaces are at the rack interface panel shown in Figure 3.2.1.3-2 OGS Specific Panel Connector Locations.

Return COOLANT CHARACTERISTICS Return COOLANT SPECIFICATIONS The return water coolant shall comply with the requirements of SSP 30573.

Return COOLANT TEMPERATURE The OGS shall return moderate temperature coolant at 61 to 120 °F.

RETURN coolant pressure drop The OGS (including CRA) shall have a moderate temperature coolant pressure drop of 7.2 + 0.1 psid at a flow rate of 483 lb/hr.

Return Coolant connector The OGS Rack shall return coolant at the Rack Interface Panel via a “MT Water Return” connector as defined in Table 3.2.1.4-2 Fluid Interface Connectors.

Receive Nitrogen The OGS shall receive nitrogen from the Node 3. The nitrogen interface is at the rack interface panel shown in Figure 3.2.1.3-2 OGS Specific Panel Connector Locations.

Receive Nitrogen Temperature The OGS shall receive nitrogen from the Node 3 at a temperature range of 60 to 113 deg Fahrenheit (15.6 to 45 deg Celsius).

Receive Nitrogen Pressure The OGS shall receive nitrogen from the Node 3 at a pressure range of 90 to 135 psia. The nominal pressure range while the nitrogen system is in use/flowing shall be 90 to 120 psia and while not in use/flowing is 110 to 135 psia.

Receive Nitrogen maximum design Pressure The OGS shall receive nitrogen at a maximum pressure of 200 psia. This can occur only during off nominal situations.

Receive Nitrogen Flow rate The OGS shall receive nitrogen from the Node 3 at a flow rate up to 0.2 lb./min, assuming the OGS is the only active nitrogen use point.

Receive Nitrogen Interface control Instrumentation and controls of the gaseous nitrogen interface shall be located within the OGS.

receive Nitrogen connector The OGS rack shall receive nitrogen at the Rack Interface Panel via an “N2” connector as defined in Table 3.2.1.4-2 Fluid Interface Connectors.

Receive Feed water The OGS shall receive feed water from the Node 3 either from the potable water bus or the fuel cell bus. The feed water interface is at the rack interface panel shown in Figure 3.2.1.3-2 OGS Specific Panel Connector Locations.

Receive feed water Temperature The OGS shall receive feed water from the Node 3 at a temperature range of 65 to 113 deg Fahrenheit (18.3 to 45 deg Celsius).

Receive feed water Pressure The OGS shall receive feed water from the Node 3 at a pressure range of 14 to 30 psig.

Receive feed water maximum design Pressure The OGS shall receive feed water at a maximum pressure of 35 psig.

Receive feed water Flow rate The OGS shall receive feed water from the Node 3 at a maximum flow rate of 100 lb/hr at the minimum interface pressure.

Receive feed water Interface control Instrumentation and controls of the feed water interface shall be located within the OGS.

Receive feed water connector The OGS rack shall receive feed water at the Rack Interface Panel via a “Feed Water” connector as defined in Table 3.2.1.4-2 Fluid Interface Connectors.

receive feed water quality The feed water received by the OGS rack will be potable water in accordance with SSP 50318, Table VI or fuel cell water from the potable water storage rack.

Supply Waste water The OGS shall supply waste water to the Node 3. The waste water interface is at the rack interface panel shown in Figure 3.2.1.3-2 OGS Specific Panel Connector Locations. The OGS will supply waste water to Node 3 only when the Water Recovery System (WRS) is available to receive waste water.

Supply Waste water Temperature The OGS shall supply waste water to the Node 3 at a temperature range of 63 to 113 deg Fahrenheit (17.2 to 48.9 deg Celsius).

Supply Waste water Pressure The OGS shall supply waste water to the Node 3 at a back pressure of 0 to 8 psig.

Supply Waste water maximum design Pressure The waste water bus Maximum Design Pressure (MDP), resulting from the worst case two failure condition, is 85 psig. The OGS will not deliver water to the bus when this failure condition exists.

Supply Waste water Flow rate The OGS shall supply waste water to the Node 3 at a nominal flow rate up to 0.54 lb./hr (scar) and at a maximum flow rate of 200 lb/hr. The maximum flow condition occurs only when the OGA rejects feed water to the waste water bus.

Supply waste water Interface control Instrumentation and controls of the waste water interface shall be located within the OGS.

Supply waste water connector The OGS rack shall supply waste water at the Rack Interface Panel via a “Waste Water” connector as defined in Table 3.2.1.4-2 Fluid Interface Connectors.

supply waste water gas content The OGS shall supply waste water to the Node 3 with a maximum gas content of 10% by volume at 40F and 20.7 psia.

SUPPLY Waste GAS The OGS rack will supply waste gases from both the OGA and the CRA to Node 3 at the H2/N2 interface on the rack interface panel, as shown in Figure 3.2.1.3-2 OGS Specific Panel Connector Locations. Under nominal operation, the CRA will supply waste gas only when the OGA is not supplying waste gas.

SUPPLY Waste GAS Temperature

SUPPLY Waste GAS Pressure

a. The OGS shall supply waste hydrogen and nitrogen to the Node 3 at a pressure from 2.0 x 10-4 to 0.5 psia.

b. The OGS shall supply waste carbon dioxide or methane to the Node 3 at a pressure from 0 to 1 psia.

SUPPLY Waste gas maximum design Pressure

SUPPLY Waste GAS Flow rate

a. The OGS shall supply waste hydrogen and nitrogen to the Node 3 at a maximum flow rate of 0.12 lb./hr.

b. The OGS shall supply waste carbon dioxide and methane to the Node 3 at a maximum flow rate of 0.72 lb./hr.

Supply waste gas connector

SUPPLY WASTE GAS WATER CONTENT

RECeive Carbon DIoxide (SCAR) The OGS shall receive carbon dioxide from the Node 3. The carbon dioxide interface is at the rack interface panel shown in Figure 3.2.1.3-2 OGS Specific Panel Connector Locations.

RECeive Carbon DIoxide Temperature The OGS shall receive carbon dioxide from the Node 3 at a temperature range of 55 to 113 deg Fahrenheit (13 to 45 deg Celsius) (TBR).

RECeive Carbon DIoxide Pressure The OGS shall receive carbon dioxide from the Node 3 at a pressure from 0 to 1 psia.

RECeive Carbon DIoxide maximum design Pressure The OGS shall receive carbon dioxide from the Node 3 at a maximum pressure of 15.2 psia.

RECeive Carbon DIoxide Flow rate The OGS shall receive carbon dioxide from the Node 3 at a flow rate up to 2 lb/hr.

RECeive Carbon DIoxide Interface control Instrumentation and controls of the carbon dioxide interface shall be located within the OGS.

Receive carbon dioxide connector The OGS rack shall receive CO2 at the Rack Interface Panel via a “CO2” connector as defined in Table 3.2.1.4-2 Fluid Interface Connectors.

SUPPLY CABIN OXYGEN

The OGS shall supply oxygen directly to the Node 3 cabin from the face of the rack. The location of the oxygen port is shown in Figure 3.2.1.4.9-1, OGS Rack Faceplate.

SUPPLY CABIN OXYGEN Temperature The OGS shall supply cabin oxygen to the Node 3 at a temperature range of 60 to 113 deg Fahrenheit (15.6 to 45 deg Celsius).

SUPPLY CABIN OXYGEN Pressure The OGS shall supply cabin oxygen to the Node 3 at a back pressure of 0 psig.

SUPPLY CABIN OXYGEN Flow rate The OGS shall supply cabin oxygen to the Node 3 at a maximum flow rate of 0.85 lb./hr.

Supply CABIN OXYGEN Interface control Instrumentation and controls of the cabin oxygen interface shall be located within the OGS.

SUPPLY CABIN OXYGEN WATER CONTENT

The OGS shall supply oxygen having a water content of less than 5 cc/day to the Node 3 cabin.

RECEIVE CABIN AIR

The OGS shall receive cabin air from the Node 3 cabin at a flow rate of 5.9 cfm via a AAA inlet port on the OGS Rack faceplate. Additional characteristics of Node 3 cabin air are defined in 3.2.1.8.4 herein. The location of the AAA inlet port is shown in Figure 3.2.1.4.9-1, OGS Rack Faceplate.

RETURN RACK AIR

The OGS shall return rack air to the Node 3 cabin via rack leakage.

RETURN RACK AIR TEMPERATURE

The OGS shall return rack air to the Node 3 cabin at a temperature range of 66 to 78 deg Fahrenheit (18.9 to 25.6 deg Celsius).

RETURN RACK AIR PRESSURE

The OGS shall return rack air to the Node 3 cabin at a back pressure of 0 psig.

RETURN RACK AIR FLOW RATE

The OGS shall return rack air to the Node 3 cabin at a flow rate of 5.9 cfm.

CABIN AIR HEAT LOAD

The heat load imposed on the cabin air by the combination of rack air return and cabin oxygen supply from the OGS rack shall not exceed 30 Watts sensible and 10 Watts latent.

3-15

OXYGEN

OUTLET

PORT

Figure 3.2.1.4.9-1 OGS Rack Faceplate (page 1 of 2)

Section C-C -J-

Detail A

Figure 3.2.1.4.9-1 OGS Rack Faceplate (page 2 of 2)

ELECTRICAL INTERFACES

Receive POWER The Node 3/OGS Rack electrical power interfaces are at the rack interface panel shown in Figure 3.2.1.3-2 OGS Specific Panel Connector Locations.

a. The OGS rack shall receive a single 6 kW main power feed from Node 3 on connector J1 at the RIP.

b. The OGS rack shall receive a single 3 kW main power feed from Node 3 on connector J2 at the RIP.

The electrical power connector pin assignments are shown in Table 3.2.1.5-3 J1 Main Power Connector Description and Pin Assignments and in Table 3.2.1.5-4 J2 Main Power Connector Description and Pin Assignments.

Table 3.2.1.5-3 J1 Main Power Connector Description and Pin Assignments CONNECTOR ID (J1 Power)

PIN FUNCTION TABLE

Table 3.2.1.5-4 J2 Main Power Connector Description and Pin Assignments CONNECTOR ID (J2 Power)

PIN FUNCTION TABLE

SSQ 21652

SSQ 21652

POWER QUALITY

Applicable electrical power quality standards are defined in SSP 30482, Electrical Power Specifications and Standards, Volume 1 for “Interface B”.

MDM hardwire interface The Node 3 shall exchange MDM hardwire data with the following OGS components in accordance with SSP 30261:002:

a. Avionics Air Assembly

b. Rack Power Switch

c. Area Smoke Detector

d. CO2 Valve

e. Carbon Dioxide Management Subassembly (CMS) Pressure Transducer The MDM hardwire interface is at the rack interface panel shown in Figure 3.2.1.3-2 OGS Specific Panel Connector Locations. The MDM hardwire data connector pin assignments are shown in Table 3.2.1.6-1 J3 Hardwire Data Connector Description and Pin Assignments. The OGS to Node 3, MDM hardwire cables shall be less than 60 feet in length.

Table 3.2.1.6-1 J3 Hardwire Data Connector Description and Pin Assignments CONNECTOR ID (J3 Hardwire Data)

J3 PIN FUNCTION TABLE

mil-std-1553B interfaces Node 3 shall provide the following 1553B data interfaces to the following components in the OGS Rack. Each interface shall consist of two separate, bi-directional 1553B stubs.

a. OGA Process Controller

b. Sabatier Reactor Subassembly (SRS) (scar).

c. RPCM.

d. CMS (scar).

The 1553B data interfaces are provided by J4 for Bus A and J5 for Bus B at the rack interface panel shown in Figure 3.2.1.3-2 OGS Specific Panel Connector Locations. The 1553 data connector pin assignment is shown Table 3.2.1.6-2 J4 1553B A Data Connector Description and Pin Assignments and in Table 3.2.1.6-3 J5 1553B B Data Connector Description and Pin Assignments.

Table 3.2.1.6-2 J4 1553B A Data Connector Description and Pin Assignments CONNECTOR ID (J4 1553B Channel A)

PIN FUNCTION TABLE

Table 3.2.1.6-3 J5 1553B B Data Connector Description and Pin Assignments CONNECTOR ID (J5 1553B Channel B)

PIN FUNCTION TABLE

1553B BUS STANDARD FORMAT

The Node 3/OGS Rack 1553B interface shall be in accordance with MIL-STD-1553B.

1553B bus signal characteristics The OGS /Node 3 data interface signal characteristics shall be in accordance with MIL-STD-1553B.

1553B bus coupling

a. The Node 3/OGS 1553B interfaces shall be transformer coupled, on the Node 3 side of the Interface, in accordance with MIL-STD-1553B.

b. The OGS 1553B harness inside the rack shall be less than 10 feet.

terminal operations The OGS components with software shall respond as a remote terminal to the Node 3 bus controller in accordance with MIL-STD-1553B.

1553B bus interface functions The OGS shall provide the MIL-STD-1553B interface capability defined in paragraph 3.2.1.7 herein.

Time distribution Not applicable.

SOFTWARE INTERFACES

The OGS Rack to Node 3 software interfaces shall be as defined in the following documents:

environments OGS Bonding Interface The OGS Rack shall provide a bonding receptacle in accordance with SSP 41017, part 1, paragraphs 3.2.1.3.4 and 3.2.2.3.5, and SSP 41017, part 2, paragraph 3.2.1.

STRUCTURAL LOADS

The OGS shall withstand structural loads as specified in SSP 41017, Part 1, paragraph 3.2.1.4.3, without loss of functionality as defined herein.

Acceleration The OGS shall withstand launch and landing accelerations as defined in SSP 41017, Part 1, paragraph 3.2.1.4.2, without loss of functionality as defined herein.

vibroacoustics The OGS shall withstand launch and landing vibroacoustics as defined in SSP 41017, Part 1, paragraph 3.2.1.4.1, without loss of functionality as defined herein.

ATMOSPHERE

The OGS shall exchange atmosphere with the Node 3 cabin.

ATMOSPHERE CHARACTERISTICS

atmosphere temperature The OGS shall operate in an ambient atmosphere temperature of 63° to 85°F.

atmosphere pressure The OGS shall operate in the Node 3 at ambient pressures between 13.9 to 15.2 psia.

Atmosphere humidity The OGS shall operate in an atmosphere with a dew point of 40° to 60°F (4.5° to 15.5°C) and a relative humidity between 25% to 70%.

REPRESSURIZATION/DEPRESSURIZATION

The OGS rack structure, when exposed to pressure changes caused by fire suppression, controlled module depressurization, and controlled module pressurization, will not permanently deform. The rack structure shall withstand the following conditions:

Max. Depressurization rate per SSP 41017, paragraph 3.2.1.4.4.

Max. Repressurization rate = 8 psi/min (920 Pa/s) OXYGEN concentration The OGS shall operate within an oxygen concentration of up to 24.1%.

NODE 3 INTERFACE REQUIREMENTS

ENVELOPE REQUIREMENTS

The Node 3 shall reserve volume for the OGS rack envelope as defined in SSP 41017, Part 1, paragraph 3.2.2.1, except for (1) the volume to route the utilities to the Rack Interface Panel and (2) the volume to stow the utilities for launch.

MASS PROPERTIES

MASS

The Node 3 shall accommodate an integrated rack with the mass requirements defined in SSP 41017, Part 1, paragraph 3.2.2.2.

CENTER OF MASS

Deleted.

STRUCTURAL/MECHANICAL ATTACHMENT

The structural/mechanical interface description is defined in SSP 41017, Part 1, paragraph 3.2.2.3.

The Node 3 structural/mechanical interface is as defined in SSP 41017, Part 2, paragraphs 3.2 and 3.3.

RACK Interface panel The Node 3 shall interface with an OGS rack interface panel for connection of utilities between Node 3 and OGS. The interface plane is at the rack interface panel as shown in Figure 3.2.1.3-1 OGS/Node 3 Rack Interface Plane. Figure 3.2.1.3-2 OGS Specific Panel Connector Locations defines the rack interface panel layout.

Accessibility The Node 3 to OGS utility shall comply with accessibility requirements of SSP 50005.

FLUID INTERFACES

Fire suppressant Not applicable.

SUPPLY COOLANT

The Node 3 shall supply single-phase moderate temperature loop water coolant to the OGS for active heat acquisition and transport. The supply coolant interfaces are at the rack interface panel shown in Figure 3.2.1.3-2 OGS Specific Panel Connector Locations.

Node 3 HEAT TRANSPORT CAPABILITY The Node 3 shall accommodate a maximum MTL heat load from the OGS Rack, including CRA, of 2880 Watts.

supply Coolant characteristics supply coolant specification The single-phase water coolant shall comply with the requirements of SSP 30573.

supply coolant temperature The Node 3 shall supply moderate temperature coolant at 61 to 65 °F (16 to 18.3 °C).

supply coolant pressure The Node 3 shall nominally supply moderate temperature coolant at an operating pressure in the range of 18 to 100 psia.

Supply Coolant Flow Rate The Node 3 shall supply moderate temperature loop coolant at a minimum flow rate of 483 lb./hr.

SUPPLY coolant rate/PRESSURE DROP The Node 3 shall accommodate a pressure drop of 7.2 + 0.1 psid at a flow rate of 483 lb/hr across the rack to Node 3 Moderate Temperature Loop interface.

SUPPLY coolant quantity Not Applicable.

SUPPLY coolant leakage rate The Node 3 shall accommodate a rack coolant leakage rate of 9E-3 scc/hr at the maximum pressure specified in paragraph 3.2.2.4.2.2.3.

Supply Coolant connector The Node 3 shall supply coolant at the rack interface panel via a “MT Water Supply” connector as defined in Table 3.2.1.4-2 Fluid Interface Connectors.

receive RETURN COOLANT The Node 3 shall receive moderate temperature return coolant from the OGS. The receive return coolant interfaces are at the rack interface panel shown in Figure 3.2.1.3-2 OGS Specific Panel Connector Locations.

receive RETURN COOLANT CHARACTERISTICS receive RETURN COOLANT SPECIFICATIONS The Node 3 shall receive coolant with the requirements of SSP 30573.

receive RETURN COOLANT TEMPERATURE The Node 3 shall receive return moderate temperature coolant at a temperature in the range of 61 to 120°F.

Return Coolant connector The Node 3 shall receive coolant at the rack interface panel via a “MT Water Return” connector as defined in Table 3.2.1.4-2 Fluid Interface Connectors.

SUPPLY Nitrogen The Node 3 shall supply…