LISA Pathfinder
Contents
1. 4 1 3 OEGS 81 4 1 4 OEGS 83 4 1 4 OEGS 85 4 1 4 OEGS 86 4 1 4 OEGS 88 4 1 4 OEGS 90 4 2 OEGS 93 4 2 OEGS 94 4 2 OEGS 95 4 2 OEGS 99 5 1 OEGS 100 5 1 OEGS 102 5 2 OEGS 103 5 2 OEGS 104 5 2 OEGS 106 5 3 OEGS 107 5 3 OEGS 108 5 3 OEGS 109 5 3 OEGS 110 5 3 OEGS 111 5 3 OEGS 112 5 3 OEGS 115 5 4 OEGS 116 5 4 OEGS 118 5 5 OEGS 119 5 5 OEGS 120 5 5 OEGS 123 5 6 OEGS 124 5 6 OEGS 125 5 6 OEGS 126 5 6 OEGS 127 5 6 OEGS 130 5 7 LISA Pathfinder Requirement Section Cross Reference OEGS 131 5 7 OEGS 133 5 8 OEGS 135 5 3 OEGS 136 5 8 OEGS 137 5 8 OEGS 138 5 8 OEGS 139 5 8 OEGS 142 5 9 OEGS 144 5 9 OEGS 146 5 9 OEGS 148 5 9 OEGS 151 5 9 OEGS 153 5 10 OEGS 155 5 10 OEGS 156 5 10 OEGS 157 5 10 OEGS 158 5 10 OEGS 159 5 10 OEGS 160 5 10 OEGS 161 5 10 OEGS 162 5 10 OEGS 163 5 10 OEGS 165 5 11 OEGS 167 5 11 OEGS 168 5 11 OEGS 169 5 11 OEGS 171 5 11 OEGS 172 5 11 OEGS 173 5 11 OEGS 174 5 11 OEGS 175 5 11 OEGS 176 5 11 OEGS 172. 4 1 1 Command and Control OEGS 40 CREATED T Standard Functions The FEE shall execute standard functions called by keywords as defined in AD 01 chapter tbd The keywords given below represent C amp C messages from the Core EGSE which identify mandatory and optional standard functions by the FEE Functions defined by these keywords shall only be used according to the syntax defined in AD 01 chapter tbd Keyword Remark AD1 tbd TRANSFER mandatory 1 z RESTART optional 3 START STOP optional 4 HALT CONTINUE O1 APPLY optional SET optional 6 REPORT REPLY mandatory Canbe replaced by HK TM 7 ee reporting ref AD 01 tbd TEST mandatory Can be replaced by HK TM 9 reporting ref AD 01 tbd GETTM mandatory Initiates HK TM reporting 10 Specific requirements when utilising remote commanding by the Core EGSE are given in the section below OEGS 44 CREATED T Specific Functions Specific functions executed in the FEE may be defined in addition to the standard functions Syntax and structure of the C amp C messages calling such specific function shall be in accordance with the C amp C message definition in AD 01 section tod Keywords and command syntax shall be described in detail in the individual EGSE ICD s and user manuals OEGS 45 CREATED T Local remote functions All functions executed on the FEE shall be called either from the local MMI or by remote command from the Core EGSE
3. SD 01 ESA Packet Telecommand Standard for commanding the spacecraft Contains the executables of all user data to conduct a test It mainly comprises a configuration specific sub set of SMDB data for the spacecrafts actual as built configuration the relevant automated procedures and synoptics running a test at Run Time using a dedicated Test Environment Packet according to SD 02 ESA Packet Telemetry Standard providing housekeeping data either from the spacecraft or from any other SCOE Front End Equipment Data Acquisition amp Processing Block DAPB EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 4 EADS ASTRIUM S2 ASU RS 5038 LISA Pathfinder Issue 2 1 5 References Page 7 of 30 1 5 1 Applicable Documents The following publications form part of this document to the extent specified herein Unless an issue is quoted for a document the current issue is deemed applicable When an issue is quoted that issue and no other shall be used AD 01 AD 02 RD 03 Core EGSE Interface Control Document S2 ASD tbd Lisa PathFinder Acronyms Abbreviations amp Terminology Document S2 ASU LI 1006 Pr
4. controlled and maintained by them It will not interface with the core EGSE or any of the FEE s The LTP will follow a development program similar to other platform flight equipments having Real Time Simulator RTS models and associated GMFE and SCOE s EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS _ LISA Pathfinder Issue 2 ASTRIUM Page 9 of 30 3 INSTRUMENT EGSE REQUIREMENTS Any specifications and or requirements associated with the DRS EGSE will be detailed in the EID A The LTP GMFE and SCOE s will be treated as FEE s and therefore will be subject to the requirements detailed in this document EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS _ LISA Pathfinder Issue 2 ASTRIUM Page 10 of 30 4 FEE REQUIREMENTS The requirements outlined below relate to all FEE 4 1 Function Requirements
5. 2 ASU RS 5038 T LISA Pathfinder Issue 2 ASTRIUM Page 1 of 30 EGSE Overall Requirements Specification Cl CODE 124 4200 UK EXPORT CONTROL RATING Not Listed Rated By D Head f Eg wee n 9 Cy de me oqozfor Checked by Approved by p Ee EU Ji of N Dunbar G Adams NOSE RR Bad Dem elses M Backler EADS Astrium Limited 2005 EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EADS Astrium Limited Registered in England and Wales No 2449259 Registered Office Gunnels Wood Road Stevenage Hertfordshire SG1 2AS England Document Autogenerated from DOORS Module LISA Pathfinder Level 3 EGSE EGSE Overall Requirements Specification EGSE Overall Requirements Specification doc S2 ASU RS 5038 EADS LISA Pathfinder Issue 2 ASTRIUM Page 2 of 30 INTENTIONALL Y BLANK EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS LI
6. A complete description of command and control functions available on the FEE shall be defined in the individual EGSE ICD s and user manuals EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS _ LISA Pathfinder Issue 2 ASTRIUM Page 11 of 30 4 1 2 Requirements for Communication with Core EGSE OEGS 48 CREATED T Application protocol client amp server Ref AD 01 section tbd The application protocol shall be implemented as specified in AD 01 section tbd with the FEE providing server services and the Core EGSE acting as client to all sockets established OEGS 49 CREATED T Two TCP IP sockets Two TCP IP stream sockets shall be established for communication to the Core EGSE One socket the receive link for receiving messages from the Core EGSE and performing the corresponding handshake if any The other socket the send link for all messages autonomously sent by the FEE to the Core EGSE see AD 01 section tbd If a command from the Core EGSE obtained via the receive link requests data transmission then this transmission shall be performed using the send link OEGS 51 CREATED T Provide service during start u
7. All signal input output interfaces video RF must support permanent open circuit and short circuit 5 13 Software Design amp Development All EGSE software for use in the higher level AIV shall be of a layered structure comprising the following three main layers System Software which is the fully commercial software environment chosen by the EGSE supplier It will typically consist of the operating system a relational database management system compilers interpreters graphic tools communication software e t c Operational Software which is provided by the EGSE supplier for use during the AIT program e g data archive operation software application software development environment measurement data evaluation software Application Software generated by the AIT team using the EGSE for particular test purposes control files test sequences synoptic display definitions data sets for simulation purpose AIT data base The following general design requirements for operational software and application software shall be met OEGS 207 CREATED R Operational software The EGSE operational software shall be based on commercially available and supported software Development of operational software for use during higher level AIT activities shall be in accordance with SD4 the ESA software engineering standard for small projects OEGS 208 CREATED R Application software Application software shall be developed according to the p
8. describing IP address and port number settings shall be provided in the equipment user manual OEGS 95 CREATED T EGSE Synchronisation Time synchronisation of FEE computers shall be achieved via the EGSE LAN by means of the UNIX standard Network Time Protocol NTP with the Core EGSE acting as the time server EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS LISA Pathfinder Issue 2 ASTRIUM Page 16 of 30 5 IMPLEMENTATION REQUIREMENTS This section provides general design implementation manufacturing and environmental requirements These requirements are applicable for the implementation as well as for selection of commercial equipment Justification shall be given in the case of deviation from the guidelines below 5 1 General OEGS 99 CREATED R General design approach The EGSE shall be based on commercially available and supported hardware and software as far as possible OEGS 100 CREATED R Metric Standards Design manufacture and assembly shall be consistent with the ISO metric standard and shall satisfy EU standards 5 2 Lifetime OEGS 102 CREATED A Continuous Operation The EGSE shall generally be desi
9. ease aaiae iania 28 Ee I 28 SAEI 28 FIGURES Figure 5 8 1 Container Forklift Dimensions ssssessseeeenem aa annin AAAA AAA NANANA AA ANA 19 Figure 5 12 1 EGSE Grounding Schematic sssrinds ai Naranai aA ARLE EANA AAAA PAA ATANN 23 Figure 5 15 1 Harness Identification Example sese nennen rennes 27 EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc S2 ASU RS 5038 EADS LISA Pathfinder Issue 2 SOM Page 4 of 30 INTENTIONALLY BLANK EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS _ LISA Pathfinder Issue 2 ASTRIUM Page 5 of 30 1 INTRODUCTION 1 1 Scope This document specifies the general requirements applicable to the Special Check Out Equipment SCOE and Gener
10. following information shall be recorded in ASCII log files e Instructions commands and messages received from the Core EGSE e keyboard entries during local operation e all events messages errors etc occurring during operations sent to the Core EGSE in remote mode e operator messages to the local display generated during local mode operation OEGS 74 CREATED T Log files management The following shall be applied as a minimum e Log files shall be created on the controller local disk using unambiguous file names indicating the test by name and the creation time e The size of a log file shall be limited to a reasonable file size i e 500 lines If this size is reached the current log file shall automatically be closed and a new file shall be opened Log files which are closed shall be accessible by the operator e Log files shall not be automatically deleted or overwritten OEGS 76 CREATED T Log entry time stamp Each entry in a log file shall be preceded by a time stamp indicating the date and time This shall be obtained from the controller system time in the format dd mm yyyy hh mm ss EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specificatio
11. height shall not exceed 2m This shall include any mains voltage isolation transformers which shall be mounted in the lowest possible rack portion This does not apply to COTS computer equipment OEGS 167 CREATED R Easy access for maintenance The racks and drawers shall be of a modular design allowing easy access for maintenance trouble shooting and replacement OEGS 168 CREATED R Drawer mounting The drawers shall be mounted on telescopic slides or angle bars and shall have locking handles or screw fastenings at the front OEGS 169 CREATED R Self steering wheels All EGSE items with a mass gt 40 kg shall be mounted on self steering wheels castors for transport over short distances within a facility Minimum diameter for these wheels shall be 80 mm OEGS 171 CREATED R Rack lifting by standard forklifts The EGSE racks shall be compatible with lifting by standard forklifts OEGS 172 CREATED R Castor lock devices The EGSE racks shall be either firmly supported on the floor or have devices to lock the castors OEGS 173 CREATED R Design for transportation Provisions for transportation handling and maintenance shall be incorporated in each rack and major unit The EGSE mechanical design shall withstand repeated transportation between integration test and launch sites without disassembly EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose o
12. status OEGS 67 CREATED R The self test may only be executed if the FEE application software is in offline mode i e no processing with the on board system instrument EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS _ LISA Pathfinder Issue 2 ASTRIUM Page 13 of 30 OEGS 68 CREATED T Self test diagnostic support The results of the self test shall be available at the Core EGSE and at the local console as an OK not OK message Further error reporting e g type of error diagnostic message shall also be available to enable further investigation in the event of a self test failure i e not OK OEGS 69 CREATED T Interfaces during self tests Self tests shall be possible with the FEE either connected or disconnected to the on board equipment OEGS 70 CREATED T Special attention shall be paid to the interfaces connecting the FEE with the on board equipment The self test shall ensure that those interfaces are in a well defined state such that no hazard may exist to the on board equipment 4 1 3 Log Files Management OEGS 72 CREATED T Log file generation During operations in both local and remote modes the
13. 14 4 2 Interface Requiremoenhls cree tenet be sanadacessubecedarabaddus ERU eR ERAI TRE ataesacarabaddea KU UO o RR ARUM REAL eel 15 5 IMPLEMENTATION REQUIREMENTS sess eren en en nee nns n nsn en nennnr tren einn sn tern nr nnne nne 16 xctl 16 DAMM 16 MESI EL 16 5 4 Cleanliness C EEEE 17 5 5 Parts amp Materials 17 5 6 Maintairiability amp Reliability xe rci rita cre de AE SENERA ROA 18 5 7 Interchangeability amp Replaceability sssssssesneeeneneene nennen nennen nnns 18 5 8 Transportation amp Contalner eterne tenen enn he aen an de o Rn seveaueduchaved LIEN npe LEX ex Red X nn E ERA 18 SO EnvironDiehl eec cert rede RR te a a aa REOR aaa ER eR sesangadivnnded TOR NERA CERES Ea denne E de ARMAR AREE EDS 19 M LUN duele i Em 20 5 11 Mechanical amp Thermal Design eese cernes eite n toan te bonn E d eon uo pera aea 21 x PA egrudsuem M 22 5 13 Software Design amp Development eeeeessesesse esses eee enne enn tenen natn nnne deant sana tran antenas 25 SX Ru ford HII EE 25 5 15 Identification amp Marking eei a cade ri On ED e aper ER e p E edo a EA Ra 26 6 VERIFICATION REQUIREMEN TS iri nna dea ra ae
14. 7 5 11 OEGS 178 5 11 OEGS 179 5 11 OEGS 180 5 11 OEGS 184 5 12 OEGS 186 5 12 OEGS 188 5 12 OEGS 190 5 12 OEGS 191 5 12 OEGS 192 5 12 OEGS 193 5 12 OEGS 194 5 12 OEGS 195 5 12 OEGS 197 5 12 OEGS 198 5 12 OEGS 199 5 12 OEGS 200 5 12 OEGS 202 5 12 OEGS 203 5 12 OEGS 207 5 13 OEGS 208 5 13 OEGS 210 5 14 OEGS 212 5 15 OEGS 214 5 15 OEGS 216 5 15 OEGS 217 5 15 OEGS 398 5 8 OEGS 399 5 8 Document Autogenerated from DOORS Module LISA Pathfinder Level 3 EGSE EGSE Overall Requirements Specification EGSE Overall Requirements Specification doc S2 ASU RS 5038 Issue 2 Page 29 of 30 S2 ASU RS 5038 EADS LISA Pathfinder issue 2 ASTRIUM Page 30 of 30 DOCUMENT CHANGE DETAILS ISSUE CHANGE AUTHORITY AUTHORITY CLASS RELEVANT RELEVANTINFORMATIONINSTRUCTIONS S2CA051 EM Update EGSE Grounding scheme OEGS 186 amp OEGS 195 DISTRIBUTION LIST INTERNAL EXTERNAL S Amos E Balaguer ESA D Head P Luetzow Wentzky ASD LTP N Dunbar H Sondermann ASD ESA Configuration Management Configuration Management Document Autogenerated from DOORS Module LISA Pathfinder Level 3 EGSE EGSE Overall Requirements Specification EGSE Overall Requirements Specification doc
15. 92 CREATED A R Harness electrical design Signal deterioration due to resistive inductive and capacitive behaviour of the interconnection lines or coax cables shall be such that all relevant applicable signal specifications are met OEGS 193 CREATED T Isolation Resistance The isolation resistance between loads which are not connected together and between shields and centre conductor and shield to shield shall be at least 10 MOhm at 500 VDC OEGS 194 CREATED R Shield routing Shields shall be routed continuously through any connectors on separate pins OEGS 195 CREATED R Termination of cable shields Termination to ground shall be at one side only to avoid ground loops This especially applies to any EGSE harnesses connected to the spacecraft flight equipment where shields shall be connected to ground at the EGSE side and shall be unconnected at the Spacecraft side see Figure 5 12 1 above Deviations from this baseline shall be subject to customer approval OEGS 197 CREATED R Hazardous voltages The design shall ensure that personnel cannot come into contact with exposed conducting surfaces carrying a voltage gt 24 V DC or gt 24 V AC peak OEGS 198 CREATED R Test points Test points shall be provided to allow easy isolation and identification of failed items without dismounting or disconnecting other equipment OEGS 199 CREATED R Test points short circuit Test points shall be short circuit protected to the extent practic
16. ADS LISA Pathfinder Issue 2 ASTRIUM Page 15 of 30 For visualisation i e display and print of binary information such as archived HK TM packets commercial off the shelf tools e g Hex Editor by the operating system UltraEdit 32 by IDM Computer solutions Inc www idmcomp com for PC running under Windows are considered sufficient A dedicated application is not mandatory Interpreting the specific data structure such as the TM Source Packet is not required OEGS 88 CREATED T Archive files remote access The archive files shall be accessible from any LAN connected computer e g the Core EGSE via FTP 4 2 Interface Requirements OEGS 90 CREATED R Communication Interface to Core EGSE The communication between the FEE and the Core EGSE shall be performed by means of a Local Area Network LAN as per AD 01 section tbd e the physical network is referenced named EGSE LAN e Ethernet according to IEEE 802 3 e 10 Base 2 thin Ethernet or 10 100 Base T RJ45 connector twisted shielded pair e TCP IP stream socket peer to peer connections OEGS 93 CREATED R Ethernet Adapter According to AD 01 section tbd an Ethernet adapter supporting 100BaseT shall be provided with galvanically isolated line drivers in order to ensure no ground loops are induced via the network cabling OEGS 94 CREATED T IP address configuration All IP addresses and socket port numbers shall be configurable by the user A step by step procedure
17. CREATED R Container access Access to the containers shall be possible without the use of any tools If absolutely necessary simple tools maybe acceptable e g screwdriver OEGS 139 CREATED R Containers with forklift provisions The EGSE containers with a mass gt 30 kg when loaded shall be equipped with forklift provisions e g mounted on a pallet of dimensions as given by Figure 5 8 1 11 cm 1cm 60 cm 1 cm Figure 5 8 1 Container Forklift Dimensions OEGS 399 CREATED R All packing containers shall comply with ISPM 15 as detailed in AD 03 paragraph 3 13 5 9 Environment OEGS 142 CREATED R Transportation environment The EGSE shall meet the following transportation environment conditions e Temperature 50 C to 60 C e Humidity up to 100 RH e Pressure equivalent to 15 km altitude e Pressure change rate lt 20 hPa s OEGS 144 CREATED R Normal operational environment The EGSE shall be designed for operation in a laboratory environment which is conditioned as follows EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS LISA Pathfinder Issue 2 ASTRIUM Page 20 of 30 e Temperature 16 C
18. SA Pathfinder Issue 2 ASTRIUM Page 3 of 30 CONTENTS T INTRODUC TION ee 5 WV SCOPES E E AE E E E E E E E E E E ER 5 1 2 Applicability Tainatar aia a aaaea aaa aA na AN Ea AA AA AAA EAA AE 5 1 3 Requirements Identification n i isinic einean a a aaa a aiaa aaa aaaea 5 TA Tems and Definitions PT 6 NESEECATIAIERUSTRIT E I a QI a DTE 7 1 5 1 Applicable DOCUMENTS a is ianoaiiaea htt Hn nen End nn tp reca ER nada a UR ie a ERIT R Red beets 7 1 5 2 Reference Docutments uns itin nete thirteen et anter ea ee ga eR n dd nae MUR Fea REA TAa ENTRAR ERATIS Mn 7 1 5 3 Standards i cede tecse detected aada abduci acd Pec iba das e Medios blades bibe lesa b aaa edenda 7 2 ASSUMPTIONS ON INSTRUMENT EGSE CONCEPT sse enne eterne 8 3 INSTRUMENT EGSE REQUIREMENTS sssssssssssssssssenene enne trennen nnne remr nns n nne n nennen snnt nenne 9 A FEE sellis uce 10 4 1 Function Redqulrermients ioi ecce d ey bet ee etd dae na a Rd kt hdd y Rc e ee Rte ANON 10 4 1 1 Command and Control trn td ee tan a a RIPE esa y abe de ERR RRAQN RARI 10 4 1 2 Requirements for Communication with Core EGSE ssssssssssseeeeeee 11 4 1 3 Log Files Management ebrii tta etta ida EA e RR ena R E Ina a RE RI AE ER eR Ie aea dE Uus 13 4 1 4 HK TM Archive Files Management ssssssessseeeneeeenen nennen enne enne nnne enne
19. al The test points shall make use of common measurement probe types e g banana jacks or BNC test points or similar OEGS 200 CREATED R EMC Design The EGSE shall be designed to support EMC tests Therefore the EGSE generated background emissions during EMC tests shall stay at least 10 dB below the level to be verified and the EGSE shall be capable of withstanding the system susceptibility tests without malfunction This implies that equipment which must unavoidably be present in the EMC test chamber shall meet the same emission and susceptibility requirements as the on board equipment and further the stimulus EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS LISA Pathfinder Issue 2 ASTRIUM Page 25 of 30 feedback cabling to be used during system EMC tests shall be designed with proper shielding twisting for a minimum field to cable coupling OEGS 202 CREATED T Bonding resistance Bonding of adjacent structural parts and equipment within the EGSE racks shall be accomplished by metallic contacts providing an ohmic resistance of less than 50 mOhm OEGS 203 CREATED R Permanent open circuit and short circuit
20. eater Sim OBDH TT amp C Signals Signals east Coax Line Coax Line Il Facility Ground Bar S C Ground Bar p onere Figure 5 12 1 EGSE Grounding Schematic OEGS 188 CREATED R Grounding of desktop EGSE EGSE which for practical reasons cannot be installed in racks shall be grounded with the rules as EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc S2 ASU RS 5038 EADS LISA Pathfinder Issue 2 ASTRIUM Page 24 of 30 follows e from a spare mains power outlet inside the rack or e from a facility mains power outlet if the design provides galvanic isolation to all other EGSE OEGS 190 CREATED R Circuit grounding Electrical circuit ground shall be insulated from the equipment chassis ground wherever possible In cases where this cannot be achieved due to technical or physical reasons e g for RF equipment an additional separation transformer DC block or some other method shall be provided to exclude ground loops involving the on board equipment OEGS 191 CREATED R Circuit ground access The equipment circuit ground shall be accessible at ground studs of plugs at the equipment front or rear panel OEGS 1
21. fidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc S2 ASU RS 5038 EADS LISA Pathfinder Issue 2 ASTRIUM Page 17 of 30 OEGS 111 CREATED T National Safety Standards All EGSE shall be designed taking into account the applicable national and international safety standards and shall be tested accordingly The equipment shall be suitable marked with a CE identification label and the supplier shall provide the pertinent Declaration of Conformity DoC as part of the End Item Data Package Additional information is contained in AD 03 Para 11 OEGS 112 CREATED R Launch Site Safety Requirements All EGSE to be used at the launch site shall meet any specific Launch Site Safety Requirements OEGS 135 CREATED R Centre of Gravity The EGSE centre of gravity shall be as low as possible with any wheels attached as close as possible to the corners of the EGSE rack base This will ensure maximum stability during movement 5 4 Cleanliness OEGS 115 CREATED R Cleanability All EGSE shall be designed for easy cleanability i e flat surfaces and no sensivity to cleaning agents OEGS 116 CREATED R Surface treatment All EGSE to be used in the clean room or in contact with flight hardware shall be surface treated as far as pos
22. finder Issue 2 ASTRIUM Page 28 of 30 6 VERIFICATION REQUIREMENTS 6 1 General The Sub contractor will be responsible for the full verification against the specified requirements and will be subject to a formal verification close out 6 2 Test Equipment Adequate test equipment and simulators shall be made available to support the EGSE equipment verification process This test equipment is not deliverable and may therefore be obtained from the suppliers laboratory equipment inventory Of particular importance is the simulation of the communication interface with the Core EGSE and the simulation of the interfaces with the on board systems These shall be fully representative on all protocol layers including the physical interface EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 4 EADS ASTRIUM OEGS 40 OEGS 44 OEGS 45 OEGS 48 OEGS 49 OEGS 51 OEGS 52 OEGS 54 OEGS 55 OEGS 57 OEGS 59 OEGS 61 OEGS 62 OEGS 63 OEGS 64 OEGS 66 OEGS 67 OEGS 68 OEGS 69 4 1 2 OEGS 70 4 1 2 OEGS 72 4 1 3 OEGS 74 4 1 3 OEGS 76 4 1 3 OEGS 77 4 1 3 OEGS 78 4 1 3 OEGS 79
23. gned for continuous operation Test periods of up to 20 days shall be supported without the need for interruptions due to resource limitations such as disk space or storage medium exchange or routine maintenance activities OEGS 103 CREATED A Design lifetime The EGSE shall be designed for an operational lifetime extending at least 6 years after acceptance OEGS 104 CREATED A Assembly Cycles The EGSE shall be designed to withstand at least 10 cycles of packing transport storage unpacking and preparation for use 5 3 Safety OEGS 106 CREATED I R Design safety The EGSE design shall avoid sharp corners and edges and no material shall be used which may constitute a risk to the health of personnel OEGS 107 CREATED T Locking brake devices All movable equipment shall have locking brake devices OEGS 108 CREATED R Fail safe design The EGSE shall in no way be able to endanger the spacecraft system and or operating personnel Fail safe design shall be built in to ensure that any single point failure in the EGSE does not propagate and cause damage to the on board equipment OEGS 109 CREATED R Failure tolerant design The EGSE elements shall be designed for tolerance to failures in interfacing equipment i e the onboard equipment or other EGSE elements OEGS 110 CREATED A Inclined EGSE The EGSE shall remain stable when inclined at an angle of up to 20 EADS Astrium Ltd owns the copyright of this document which is supplied in con
24. hroughout the operational life of the equipment 5 8 Transportation amp Container OEGS 133 CREATED R Transport capability All EGSE shall be designed for road air including helicopter and ship transportation by normal commercial facilities readily available in Europe Transportation of the EGSE within Europe will be mainly by road OEGS 136 CREATED R Containers for transport and storage All EGSE items shall be provided with re useable containers to comply with the transport and storage environments given herein OEGS 137 CREATED R Container environmental protection Containers shall be designed to protect the EGSE from the worst case transportation environment as specified below If the transported EGSE does not comply EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS _ LISA Pathfinder Issue 2 ASTRIUM Page 19 of 30 with the specified environmental conditions the containers shall provide adequate protective measures OEGS 138 CREATED R Minimum packing preparation The EGSE containers shall be designed such that the EGSE item preparation for packing and the packing process are kept to a minimum OEGS 398
25. ic Modular Front End Equipment GMFE used during the various test phases of the Lisa Pathfinder program For simplification the equipment SCOE and GMFE which is planned to be operated by the Core EGSE is addressed as Front End Equipment FEE as it is considered a front end to the Core EGSE All equipment including the core EGSE is addressed as the Electrical Ground Support Equipment EGSE 1 2 Applicability This specification is conceived as a higher level applicable document to the EGSE and covers the following items e the communication to the Core EGSE e the hardware and software interfaces e the design implementation requirements e the verification requirements The definition of the specific function and performance parameter requirements associated with the individual EGSE elements are expected to form part of the relevant lower level EGSE requirement specifications The location of this document within the Lisa PathFinder document hierarchy is detailed in RD 02 1 3 Requirements Identification Requirements within this document are shown in an italic font Each requirement is proceeded by a summary line that contains the following fields delimited by Doors Requirement Number OGSE xyz This is a unique number assigned consecutively Created From Shows parent requirement Test Method T Test A Analysis Inspection R Review of Design D Definition If tables are considered part of a requiremen
26. l be applied as a minimum e Archive files shall be created on the controller local disk using unambiguous file names indicating the test by name and the creation time e The size of a archive file shall be limited to a reasonable file size i e 500 entries If this size is reached the current archive file shall automatically be closed and new file shall be opened Archive files which have been closed shall be accessible by the operator e Archive files shall not be automatically deleted or overwritten OEGS 85 CREATED T Archive entry time stamp Each entry in an archive file shall be preceded by a time stamp indicating date and time This shall be obtained from the controller system time in the format dd mm yyyy hh mm ss OEGS 86 CREATED T Archive file browsing and retrieval It shall be possible to browse through the archive files directory by means of a standard i e operating system utility file manager and to retrieve archive files corresponding to a required time and date The contents of the selected archive file shall then be available for displaying and printing EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 E
27. llows e high common mode noise rejection by physically separated primary secondary windings and separate shielding for each winding capacitive coupling between primary and secondary windings shall be 1pF e class Il double reinforced insulation e compliant with DIN VDE 0551 EN 60742 EN 61010 e protection earth at the output connectors e grounding stud for connecting the rack chassis and the protection earth OEGS 184 CREATED A Mains power supply The EGSE interface with the facility provided mains power shall be as follows EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc S2 ASU RS 5038 LISA Pathfinder Issue 2 ASTRIUM Page 23 of 30 e One single connection via single phase or three phase power plug depending on the rack total power consumption e Voltage 230V 10 16 A max AC single phase 400V 10 96 32 A max AC three phase e Frequency 50 Hz 10 96 e Connector Type 230V European Standard 400V IEC 309 CEE 16A or 32A OEGS 186 CREATED T EGSE rack grounding The EGSE grounding shall be supported according to the schematics outlined in Figure 5 12 1 SCOE A Signals LO Signals iF 4 Signals pan Signal H
28. n written by the user in a high level command language to control the execution of a test Contains statements to send commands to the spacecraft and to other EGSE items and to process the telemetry and other data coming from the S C and other EGSE items synonym Test Sequence Control File ASCII data structure replacing the entire source packet Application Data Field of a standard TC Source Packet These packets are used to exchange commands and feedback data between the Core EGSE and Front End Equipments Data from a SCOE representing either measurement data from the spacecraft or data directly measured at a dedicated spacecraft interface Set of electronic magnetic optical etc equipment to stimulate and or simulate the S C s interfaces like sensors and actuators and or other units e g sun batteries A list of procedure language commands stored in an ASCII disk file During a Test Session a script can be called by file name and the commands contained are interpreted and executed sequentially similar to DOS batch file Database containing all definitions for all data structures for the spacecraft TM and TC and for all stimuli and feed back data structures to and from other EGSE items SMDB Command to a SCOE to execute a stimulation of a spacecraft interface Field within the Application Data Field of a TM TC Source Packet identifying the data structure provided with this packet Packet according to
29. n doc 2 ASU RS 5038 EADS LISA Pathfinder Issue 2 ei Page 14 of 30 OEGS 77 CREATED T Log Entry Visualisation All events subject to log file entry shall be displayed on line i e at the time of occurrence in a synoptic window on the controller local console Filters shall be available to allow selection of the message types to be displayed This shall include an All message selection OEGS 78 CREATED T Log file browsing and retrieval It shall be possible to browse through the log files directory by means of a standard i e operating system utility file manager and to retrieve log files corresponding to a required time and date The contents of the selected log file shall then be available for displaying and printing OEGS 79 CREATED T Log files remote access The log files shall be accessible from any LAN connected computer e g the Core EGSE via FTP 4 1 4 HK TM Archive Files Management OEGS 81 CREATED T HK TM archiving In local operation mode all FEE internal HK TM parameters acquired during a test shall be recorded in a telemetry archive file in the form of binary FEE internal HK TM Source packets as generated for transfer to the Core EGSE see AD2 section tbd During remote operations from the Core EGSE such local archiving is not required as all HK TM packets are transferred to the Core EGSE and are subject to archiving by the Core EGSE OEGS 83 CREATED T Archive files management The following shal
30. nce shall be easily accessible OEGS 125 CREATED R Description of Maintenance Procedure Components shall be identified and maintenance procedures described within the equipment users manual dedicated maintenance chapter OEGS 126 CREATED R Manufacturing amp Assembly Standards The EGSE shall be manufactured and assembled to the usual standards of ground based electronic instrumentation and engineering practice of spacecraft testing Judgment and acceptance of EGSE shall be based on the design margin applied possible failure modes and their effect and soundness of the design OEGS 127 CREATED R EGSE Downtime The EGSE shall be designed for a minimum downtime including routine maintenance in order not to jeopardize the overall satellite AIT programme Maximum EGSE reliability shall be attained by a combination of the following services which shall be provided by the EGSE suppliers 24 hours response service for first aid trouble shooting support e spare parts maintenance and repair service which guarantees a down time of not more than 48 hours 5 7 Interchangeability amp Replaceability OEGS 130 CREATED R Interchangeability The EGSE sub assemblies parts and components bearing the same part number shall be both physically and functionally interchangeable OEGS 131 CREATED R Replaceability Equipment design tolerances shall not be more stringent than necessary to achieve the performance and replacement ability required t
31. nfiguration Item Cl number e Nomenclature of the item e Contract number OEGS 214 CREATEDI I Container identification label Each container shall in addition to the above be marked with the information as follows e Lisa Pathfinder project e ltem All up weight e Item CoG e Safe Working Load e Hoisting point identification e Special safety instructions e Re usable container marking e content identification nomenclature with S N OEGS 216 CREATED I Location of identification label The identification labels of EGSE drawers shall be located such that removal of the drawers is not necessary in order to ascertain their part number All Printed Circuit Boards PCB and other removable items shall be clearly marked with their part number All part numbers shall include their relevant change revision index Instruction plates shall be securely fastened to enclosures instrument panels and shall be placed in positions where they can easily be read Precautionary markings shall be provided as necessary to warn personnel of any hazardous conditions and precautions to be observed OEGS 217 CREATEDI I Harness identification A numbering system shall be used for identification of cables plugs and connectors of all EGSE components These ID numbers shall appear on all relevant diagrams drawings and associated parts lists and manuals Labeling the cable itself is outlined as an example by Figure 5 15 1 EADS Astrium Ltd owns the c
32. nnel for nominal and non nominal tasks OEGS 157 CREATED I It shall be possible to slide a drawer to its full forward position without disconnecting any cables EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS _ LISA Pathfinder Issue 2 OSTREM Page 21 of 30 OEGS 158 CREATED R Panels which need frequent operator access shall be at an ergonomic height OEGS 159 CREATED R Any adjustments that are required during normal operation shall be carried out from the front panels OEGS 160 CREATED R All permanent connections shall be on the rear of the EGSE racks OEGS 161 CREATED R The rack side walls shall be extended to protect the front panel elements from any possible crash damage during rack movement OEGS 162 CREATED R Critical front panel switches e g power ON OFF Remote Local Self test shall be protected against inadvertent activation OEGS 163 CREATED R Red lamps on front panels shall be reserved for alarm no go or failure indications only 5 11 Mechanical amp Thermal Design OEGS 165 CREATED R Rack layout The EGSE shall be housed in standard 19 racks or consoles wherever possible overall
33. oduct Assurance Requirements for Sub contractors S2 ASU RS 1005 Paragraphs 5 8 and 10 plus additional paragraphs as specified herein 1 5 2 Reference Documents The publications listed below were used in the preparation of this document and contain background information relating to the subjects addressed RD 01 RD 02 1 5 3 Standards SD 01 SD 02 SD 03 SD 04 Lisa PathFinder Packet Utilisation Standard LPF PUS S2 SYS ICD 2001 Specification and Plans Document Tree S2 ASU PT 1002 ESA Packet Telecommand Standard ESA PSS 04 107 ESA Packet Telemetry Standard ESA PSS 04 106 Ground Systems and Operations Telemetry and Telecommand Packet Utilizatio ECSS E 70 41A Software Part 1 Principles and Requirements ECSS E 40 EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS _ LISA Pathfinder Issue 2 ASTRIUM Page 8 of 30 2 ASSUMPTIONS ON INSTRUMENT EGSE CONCEPT At present there are two instrument packages on the Lisa PathFinder spacecraft the Disturbance Reduction System DRS and the LISA Test Package LTP The DRS will be under the control of NASA and will be designed procured
34. opyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc S2 ASU RS 5038 EADS LISA Pathfinder Nie ASTRIUM Page 27 of 30 max m mazi m A y mum S k P La di M FPASQODE 4 FPA SCOE FOB PTI 715100 PT 71 510 XM b S N 006 L amp SN 006 FEC2 q pA X EN lt L f M L o o Cable Ca ble S C Connector unit name J unit name identifier PTI no PTI no S C name EGSE Connector i J i EVE vonnector serial no serial no connected S S or Bracket identifier one lable j connected unit for each connector J l of J Cable_Labels dsf Jf P02 maso i example Figure 5 15 1 Harness Identification Example EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc S2 ASU RS 5038 EADS LISA Path
35. or cyclical reporting of FEE house keeping data to the Core EGSE specific EGSE Internal HK TM Source Packet s shall be provided by the FEE conforming to AD 01 section tbd Packet Structure and parameter details shall be described in detail in the equipment ICD and user manual as outlined in AD 01 section tbd Packet Data Field OEGS 62 CREATED T Reset command The FEE shall accept a reset command via the FEE local console or LAN while in on line mode and via the FEE local console when in off line mode The reset shall bring the complete FEE into a default state corresponding to the initial status including disconnection of the logical link to the Core EGSE OEGS 63 CREATED T Operation during switch over Switching between local and remote operation shall be possible in any operational mode without affecting the operational conditions OEGS 64 CREATED T Switch over communication Upon switching from local to remote the FEE shall communicate its operational status to the Core EGSE Due to manual intervention during local operation the Core EGSE software may find the FEE in an operational state different to that previously commanded when switched back to remote The implementation of this requirement shall avoid unnecessary error messages OEGS 66 CREATED T Self test mode It shall be possible to initiate a self test mode either locally on the FEE console or from the Core EGSE via the LAN interface depending on the operational
36. p During startup of the application software system at the FEE the network communication services shall be provided automatically without any manual intervention OEGS 52 CREATED T Initial status After mains power on or after reset the FEE shall assume a local off line operational mode with the following characteristics e remote operation mode inactive i e socket disconnected amp off line ref AD 01 section tbd e all stimulus from the FEE to be inactive e FEE with archiving facility archive subsystem inactive e remote interface to Core EGSE ready to receive socket connection request OEGS 54 CREATED T Accept command messages The FEE shall accept and execute command messages called C amp C from the Core EGSE embedded into command source packets as defined in AD 01 section tbd OEGS 55 CREATED T Remote command The FEE shall accept a Transfer remote C amp C command from the Core EGSE via LAN if the logical link was previously established by a connection request This command shall establish a FEE configuration as follows e remote operation active ref AD 01 section tbd e nochange to processes running at the time of switching to remote operation e FEE with archiving facility archive subsystem ready for mandatory recording EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in
37. roject check out software plan 5 14 Workmanship OEGS 210 CREATEDII Workmanship The EGSE shall be designed fabricated and finished to a high quality of fit and finish and for adherence to the specified requirements Particular attention shall be given to the absence of burrs and sharp edges which might cause injury to personnel or damage to flight or ground hardware Paint finishes shall be free of runs voids dirt over spray and subsurface voids or contamination Attention shall be paid to neatness and thoroughness of soldering and wiring EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc S2 ASU RS 5038 EADS LISA Pathfinder Issue 2 ASTRIUM Page 26 of 30 5 15 Identification amp Marking OEGS 212 CREATED I EGSE identification label The EGSE identification plates shall be visible when installed and their locations shall be defined in the assembly drawings If the label size is such that all identifiable criteria cannot be specified the order of precedence for identification data shall be as follows but the part number serial number and configuration number are mandatory on all configuration items e Partnumber e Serial number e Co
38. sible in order to meet a class 100 000 clean room environment together with any project specific cleanliness requirements 5 5 Parts amp Materials OEGS 118 CREATED R Corrosion Resistance Metals shall be of a corrosion resistant type or suitably treated to resist corrosive conditions OEGS 119 CREATED R Material compatibility to flight hardware All EGSE to flight hardware interfaces shall be analysed for their material compatibility i e electrolytic and or fretting corrosion shall not occur OEGS 120 CREATED R Forbidden materials The following materials shall not be used e Polyvinyl Chloride PVC for items used on or in close proximity to any flight equipment The use of PVC for other items situated elsewhere in a clean room shall be strongly avoided wherever possible e Cadmium Plating EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS _ LISA Pathfinder Issue 2 ASTRIUM Page 18 of 30 5 6 Maintainability amp Reliability OEGS 123 CREATED R Minimum Maintenance The EGSE shall be designed for minimum scheduled maintenance OEGS 124 CREATED R Easy Accessibility Components requiring scheduled maintena
39. t they are referenced clearly in the text and inserted after and separated from the requirement table and are managed as free text attached to the identifier requirement The trace to the upper level requirements Upper Links shall be managed using the following format AAA NNNN where AAA is a label associated to the upper document and NNNN the requirement identifier of this upper level Or CREATED key word if the requirement has no link with upper level This information is only relevant for verification tracing performed by Astrium and consequently may be ignored by any Sub contractor The requirements established are mainly focussed on functional and performance requirements with the intention that maximum use of existing recurring equipment is possible EADS Astrium Ltd owns the copyright of this document which is supplied in confidence and which shall not be used for any purpose other than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc ASTRIUM S2 ASU RS 5038 LISA Pathfinder Issue 2 Page 6 of 30 1 4 Terms and Definitions Automated Procedure C amp C Message Feedback Data SCOE Script Spacecraft Mission Data Base Stimuli Commands Structure Identifier TC Source Packet Test Environment Test Session TM Source Packet Test program applicatio
40. ther than that for which it is supplied and shall not in whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS _ LISA Pathfinder Issue 2 ASTRIUM Page 22 of 30 OEGS 174 CREATED T Thermal design The equipment shall contain adequate cooling capabilities air in outlets and fans to avoid overheating in the operating environment OEGS 175 CREATED R Rack air outlets Air in outlets shall be on the bottom and top of the rack OEGS 176 CREATED T Temperature regulated Fans Wherever possible the on off operation of cooling fans shall be regulated by temperature sensors OEGS 177 CREATEDI I Connectors physical design Electrical connections within the equipment shall be secured to prevent breakage or changes in the electrical characteristics of outputs as a result of vibration acceleration or shocks encountered under the specified environment OEGS 178 CREATEDI I External connectors must be equipped with locking devices OEGS 179 CREATED R The access to all connectors shall be such that any individual connector can be mated or demated without the need to disconnect any other connector OEGS 180 CREATED R Mismatch of connectors must be physically impossible 5 12 Electrical amp EMC The EGSE shall include a single three phase mains isolation transformer unit according to the capabilities as fo
41. to 27 C e Humidity 30 up to 60 e Cleanliness at least visibly clean OEGS 146 CREATED R Launch pad environment EGSE installed on the launch pad or the umbilical mast shall be compliant with the following conditions e Temperature 10 C to 27 C tbe e Humidity up to 90 RH condensing tbc e Pressure 800 to 1050 mbar tbc e Acoustic Noise up to 138 dB for 10 sec max tbc OEGS 148 CREATED R Storage environment The EGSE shall meet the following storage environment conditions e Temperature 40 C to 60 C e Humidity up to 85 RH e Pressure 800 to 1050 mbar Where the storage environment conditions for the EGSE are in conflict with the build standard of commercially available equipment this requirement may be waived OEGS 151 CREATED R Environmental test conditions EGSE which is required to operate in the vicinity of on board equipment during the environmental test programme and as such is exposed to the same environmental conditions as the item under test shall be designed to withstand these conditions without degradation of performance and without deteriorating the represesentativity of test results 5 10 Ergonomy OEGS 153 CREATED R Equipment to be lifted by hand shall not be heavier than 25 kg OEGS 155 CREATED R The maximum force necessary to operate a control or mechanism by hand shall be 120 N OEGS 156 CREATED R The EGSE design shall provide adequate space and accessibility for the operating perso
42. whole or in part be reproduced copied or communicated to any person without written permission from the owner EGSE Overall Requirements Specification doc 2 ASU RS 5038 EADS LISA Pathfinder Issue 2 ASTRIUM Page 12 of 30 OEGS 57 CREATED T Local command The FEE shall accept a switch local command from the FEE local console or a Transfer local C amp C command from the Core EGSE via LAN This command shall establish a FEE configuration as follows e remote operation inactive ref AD 01 section tbd logical link is not disconnected e nochange to processes running at the time of switching to local operation e the FEE shall assume an operational safe mode not presenting any hazard to the flight hardware e FEE with archiving facility archive subsystem operational mode unchanged remote interface to the Core EGSE ready to receive commands OEGS 59 CREATED T Issue messages The FEE shall issue status and error messages to the Core EGSE in the form of C amp C messages as defined in AD 01 section tbd Keywords and message syntax shall be described in detail in the equipment ICD and user manual The detailed definition of command and status messages shall be defined based on the actual design implementation of the FEE As a minimum messages related to the FEE elements served by the controller shall be processed in accordance with the requirements defined above OEGS 61 CREATED T EGSE internal HK TM Packet F
Download Pdf Manuals
Related Search