Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 1 Notice : This technical data is furnished on the condition that it will be used by and disclosed to the receiving Cooperating agency and its contractors and sub contractors only for the purposes of fulfilling the cooperating agency’s responsibilities under the Space Station Intergovernmental Agreement (IGA) and Memorandum of Understanding (MOU). It shall not be used for any other purpose, nor disclosed or retransferred to any other entity or government without prior written permission of the Japan Aerospace Exploration Agency (JAXA). Payload Laptop Terminal (PLT) Overview Instructor:Yuichi Ito Satoshi Kawaguchi JEM PLT OV 21407

Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 2 Objectives After this lesson trainee will be able to:  Purpose of PLT - Explain the purpose and operational concept of PLT.  PLT Interface and architecture - Identify the JEM C&DH component that communicates with PLT. - Identify the softwares installed in PLT.  Perform following tasks according to ODF without instructor’s assistance - PLT activation/Deactivation - IPU bit rate change for VRU via PLT

Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 3 Lesson Outline Contents: - Purpose of PLT - PLT Interfaces - PLT Architecture - Key points - PLT operations for P/Ls control - Acronyms - Appendix Page:

Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 4 Intentionally Blank

Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 5 Purpose of PLT - PLT is one of the onboard laptop computer (A31p) dedicated to JAXA payload operations. - Ground is responsible for commanding/monitoring JAXA Payloads. - However, there are the cases that ground can not operate the P/Ls. In these cases, crewmember might be requested to command/monitor JAXA Payloads as backup of ground. Purpose of PLT Operational Concept Ground Commanding as primary operation no alternative method for missions success PLT will be used as a backup solution

Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 6 PLT Interfaces C&C MDM JCP PDH PLT JAXA Payload Payload Bus E Control Bus EXT-1, 2 Payload Bus 1A System Local Bus 2 JAXA Payload Payload Bus 1B JAXA Payload Payload Bus 2 JAXA Payload Payload Bus 3 PLT LABJPMJEF PCS SLT PCS PLT can be connected to PDH via Payload Bus E or Payload Bus 3

Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 7 PLT Interfaces (Cont’d) As for the Ports for P/L Bus, 3 ports are used: - Payload Bus 3 (UOP b1 AD2 or UOP a2 FD4) or - Payload Bus E (UOP in US LAB). JPM UOP location for PLT Utility Outlet Panel (UOP) UOP for PL Bus E US Lab UOP location for PLT Starboard PortAft Forward Saibo Rack (JPM1A2) Ryutai Rack (JPM1A3) Workstation rack (JPM1 F4) UOP b1 AD2 UOP a2 FD4 PLT’s location after C/O

Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 8 PLT hardware(A31p) and operating system software (Red hat Linux) are the same as the ISS PCS and SLT. PLT Local Bus Interface Software (PLT LBIS) provides C&DH function. PLT Application Software (PLT ASW) provides unique displays for each payload operations. PLT is set up with the software component for JAXA payload operations. PLT ASW PLT LBIS Red hat Linux PLT Architecture A31p

Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 9 Key points during PLT Operations CategoryKey points Crew Safety N/A Time Critical Operation N/A Dos and Don’ts N/A Difficulty in Ops. N/A Possible Mis-Ops. N/A Emphasis : PLT is not planned to use for any critical operations.

Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 10 PLT operational flow PLT Installation PLT deactivation PLT operations for P/Ls control PLT installation in JPM (common to that of other laptop terminals (PCS, SLT, etc) ). PLT activation Power on PLT Activate PLT LBIS & PLT ASW Deactivate PLT ASW & PLT LBIS Power off PLT Command/monitoring telemetry PLT stowing Perform at hands-on training

Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 11 Acronyms Application Software Built In Test Clean Bench Cell Biology Experiment Facility Command & Control Multiplexer/Demultiplexer Command & Data Handling Data Management System Environment Control and Life Support System Electrical Power System Fluid Physics Experiment Facility Gradient Heating Furnace Greenwich Mean Time Inter-orbit Communication System Image Processing Unit International Standard Payload Rack JEM Control Processor JEM Exposed Facility Japanese Experiment Module JEM Pressurized Module ASW BIT CB CBEF C&C MDM C&DH DMS ECLSS EPS FPEF GHF GMT ICS IPU ISPR JCP JEF JEM JPM LBIS ODF PCRF PCS PDH PLT PPDB RMS SLT SCOF SEDA-AP TCS UOP VRU Local Bus Interface Software Operations Data File Protein Crystallization Research Facility Portable Computer System Payload Data Handling Unit Payload Laptop Terminal Payload Power Distribution Box Remote Manipulator System System Laptop Terminal Solution Crystallization Observation Facility Space Environment Data Acquisition equipment - Attached Payload Thermal Control System Utility Outlet Panel Video Record Unit

Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 12 Appendix

Training Purposes Only JEM PLT OV JMU (Ver. 1.0) 13 ISPR Home Page Payload Status Indication Payload On and Loss of Communication Payload On and In Communication Payload Off and Loss of Communication PPDB In Communication PPDB Loss of Communication No PPDB power on/off status displayed.