NSTS 21000-IDD-760XD Shuttle/Payload Interface Definition Document for the Payload and General Support Computer (PGSC) Space Shuttle Vehicle Engineering Office Baseline July 1999 NASA National Aeronautics and Space Administration Lyndon B.
NSTS 21000-IDD-760XD Shuttle/Payload Interface Definition Document for the Payload and General Support Computer July 1999 Baseline Approved by Original Signed By: B. J. Watkins Co-Chairman, Portable Onboard Computer Control Board Original Signed By: N. A. Woodbury Co-Chairman, Portable Onboard Computer Control Board NATIONAL AERONAUTICS AND SPACE ADMINISTRATION LYNDON B.
NSTS 21000-IDD-760XD NOTICE--WHEN ANY GOVERNMENT DRAWINGS, SPECIFICATIONS, OR OTHER DATA ARE USED FOR ANY PURPOSE OTHER THAN IN CONNECTION WITH A DEFINITELY RELATED GOVERNMENT PROCUREMENT OPERATION, THE UNITED STATES GOVERNMENT THEREBY INCURS NO RESPONSIBILITY NOR ANY OBLIGATION WHATSOEVER: AND THE FACT THAT THE GOVERNMENT MAY HAVE FORMULATED, FURNISHED, OR IN ANY WAY SUPPLIED THE SAID DRAWINGS, SPECIFICATION, OR OTHER DATA IS NOT TO BE REGARDED BY IMPLICATION OR OTHERWISE AS IN ANY MANNER LICENSING THE HO
NSTS 21000-IDD-760XD INTRODUCTION The Payload and General Support Computer (PGSC) is a service used to support Shuttle and Payload on-orbit operations. The primary functions are command and display of non-critical payloads and additional crew information services. The number of PGSC’s manifested is determined on a flight-by-flight basis. The Space Shuttle Portable Onboard Computer Control Board determines flight-by-flight configurations.
NSTS 21000-IDD-760XD TABLE OF CONTENTS 1.0 1.1 1.2 1.3 1.4 1.5 SCOPE..................................................................................................................................................... 6 PURPOSE ................................................................................................................................................. 6 GENERAL...............................................................................................................................
NSTS 21000-IDD-760XD 6.4 PGSC FLIGHT LAPTOP MEMORY ADDRESS ALLOCATIONS ......................................................................... 33 6.5 CONFIGURATION #1.................................................................................................................................. 34 6.5.1 Configuration #1 - Standalone with Dual Port RS-422 PC-Card (PCMCIA Card)........................... 34 6.5.2 Configuration #1 - Standalone with RS-422 Usage Table .......................................
NSTS 21000-IDD-760XD INDEX OF TABLES TABLE 3-I. - THINKPAD 760XD/PGSC COMPARISON ....................................................................... 17 TABLE 4-I. PGSC COMPONENT WEIGHTS ....................................................................... 28 TABLE 5-I. DC POWER TEST RESULTS ....................................................................... 29 TABLE 5-2 AC POWER TEST RESULTS* ....................................................................... 29 TABLE 7-I.
NSTS 21000-IDD-760XD 1.0 SCOPE 1.1 PURPOSE The purpose of this document is to: a. Define and control the interfaces provided by the PGSC and associated components for use by payloads and crew software, and b. Define and control constraints observed by payload and crew support users. 1.2 GENERAL This document defines all interfaces available to the PGSC assembly and identifies configurations for the government furnished equipment (GFE) communications and power cables supplied with the PGSC assembly.
NSTS 21000-IDD-760XD NASA/Johnson Space Center, mail code DL4 Portable Onboard Computing and Tools Neil Woodbury, (281) 244-5790, Portable Onboard Computer Co-Chairman NASA/Johnson Space Center, mail code DO5 Payload Operations Branch Project Engineer for applicable payload NASA/Johnson Space Center, mail code DL42 Mission Operations Procedures Branch POC Coordinator for applicable flight 7
NSTS 21000-IDD-760XD 2.0 APPLICABLE DOCUMENTS The following documents form a part of this document to the extent specified herein. In the event of conflict between the documents referenced and the contents of this document, the contents of this document shall be considered a superseding requirement. U.S. Government Documents FED STD 1020A Telecommunications Electrical Characteristics of Balanced Voltage Digital Interface Circuits NSTS 1700.
NSTS 21000-IDD-760XD interface circuits. Industry documents (continued) IBM Select-a-Dock User’s Guide, July 1997 International Business Machines Corporation Armonk, NY. INTEL ProShare™ Personal Conferencing Video System User’s Guide ProShare Video System 150 Intel Corporation, 1995 QUATECH DSP-200/300 User’s manual Dual Channel RS-422/485 PCMCIA Asynchronous Adapter Quatech Incorporated, 1996 SEALEVEL ACB-530 Part #4111 users manual Sealevel Systems Incorporated, 1994 IS0-COMM part no.
NSTS 21000-IDD-760XD 3.0 OVERVIEW The PGSC computer assembly is a ThinkPad 760XD model laptop computer that is IBM ATBus/PCI compatible, and has been modified for use in the Orbiter environment. The PGSC computer assembly and the following hardware items are GFE and are available for use on Space Shuttle missions. This list only represents commonly used GFE items. (Note: Contact B. Watkins at (281) 244-1335 or N.
NSTS 21000-IDD-760XD The figures in this section represent various views of the PGSC Flight Laptop and the Expansion Unit assemblies. Figures 3-1 through 3-8 depict the standard connectors found on the ThinkPad 760XD and Expansion Unit assemblies as described in paragraph 3.1 and 3.2, respectively. Figures 3-9 and 3-10 depict the DC and AC power interface diagrams. Table 3-I is a summary comparison of the ThinkPad 760XD and the PGSC Flight Laptop assembly.
NSTS 21000-IDD-760XD FIGURE 3-2 PGSC FLIGHT LAPTOP (LEFT SIDE) FIGURE 3-3 PGSC FLIGHT LAPTOP (RIGHT SIDE) 12
NSTS 21000-IDD-760XD FIGURE 3-4 PGSC FLIGHT LAPTOP (REAR VIEW) 120V AC/DC Power Input Connector FIGURE 3-5 PGSC FLIGHT LAPTOP WITH EXPANSION UNIT 13
NSTS 21000-IDD-760XD FIGURE 3-6 PGSC FLIGHT LAPTOP WITH EXPANSION UNIT (REAR VIEW) (NO CARD TRAY) FIGURE 3-7 PGSC AND EXPANSION UNIT WITH CARD TRAY (LEFT SIDE) 14
NSTS 21000-IDD-760XD PCMCIA Slots Strain Relief FIGURE 3-8 PGSC AND EXPANSION UNIT WITH CARD TRAY AND TYPICAL PCMCIA CARD INSTALLED (RIGHT SIDE) J1 DC POWER CABLE PGSC-760XD COMPUTER WITHOUT EXPANSION CHASSIS J2 POWER ADAPTER CABLE DC POWER CONVERTER FIGURE 3-9 PGSC FLIGHT LAPTOP DC POWER INTERFACE DIAGRAM 15
NSTS 21000-IDD-760XD PGSC-760XD COMPUTER WITH EXPANSION CHASSIS AC W POWER CABLE FIGURE 3-10 PGSC FLIGHT LAPTOP WITH EXPANSION UNIT AC POWER INTERFACE DIAGRAM 16
NSTS 21000-IDD-760XD TABLE 3-I. - ThinkPad 760XD/PGSC Comparison 32-bit 166 MHz Pentium MMX CPU Floating Point Unit (FPU) System memory (DRAM standard/optional) 2 Mb VRAM for display subsystem 512 kb BIOS Flash ROM XGA Color screen 1024 x 768 x 65536 pixel resolution Bit-mapped graphic display capability External XGA compatible monitor connector 84 keys of standard IBM AT External keyboard/mouse/keypad connector One 3.5 in., 1.
NSTS 21000-IDD-760XD 3.1 PGSC/ThinkPad 760XD UNMODIFIED INTERFACES The PGSC Flight Laptop assembly is equipped with twelve IBM standard interfaces as supplied by the original manufacturer, IBM Corporation. The ThinkPad 760XD 28.8-baud modem was removed for the flight configuration to accommodate power modifications.
NSTS 21000-IDD-760XD 3.1.7 Microphone/Line-in Jack A 1/8-inch (3.5-mm) diameter jack where a stereo microphone or external audio device is connected. 3.1.8 External Bus Connector This is the port used to connect the expansion assembly. 3.1.9 Video In From the video in port you can capture still images or motion video and overlay motion video. 3.1.10 Video Out From the video out port you can export motion video. 3.1.
NSTS 21000-IDD-760XD Configuration 5 • 2, 9-pin Serial RS-422 port- Refer to Sealevel users manual for details. For more detailed information regarding these connectors, see IBM ThinkPad 760XD/XL, 760E/ED/EL User’s Guide, IBM Expansion Unit documentation, Sealevel documentation, Quatech documentation, and OCA documentation. The current expansion assembly configurations 2, 3, 4, and 5 consist of a one-slot expansion unit that supports standard computer cards.
NSTS 21000-IDD-760XD DC Processor Speed = Maximum DC Power Mode = Custom Enter Suspend When Lid is Closed = Disabled Timer set for Suspend Function = Enabled On Low Battery Suspend the Computer = Enabled RediSafe Suspend Mode = Disabled Use Switch for On/Off (Not Hibernation) = Enabled Hibernation from Suspend Timer = Disabled Expansion Unit Suspend = Disabled LCD Battery Brightness = Normal Video Presentation Mode = Enabled Screen = LCD and External Horizontal and Vertical Expansion = Enabled Use
NSTS 21000-IDD-760XD Parallel Port = Enabled Parallel Port Address = LPT1 Parallel Port Type = Bidirectional Disk Drives Floppy Disk Drive = Enabled as External Secondary Hard Disk Drive = Enabled (IRQ 15) Keyboard Key Locked-Down = Disabled Keyboard Type Rate = Normal TrackPoint III = Enabled Miscellaneous PCI IRQ = 11 Joystick Port = Enabled PC CardBus 1 = Disabled PC CardBus 2 = Disabled Display Startup Screen = Enabled 3.4.
NSTS 21000-IDD-760XD 3 - Audio A - Audio - Enabled B - Sound Properties - Check Sound Assignments C - Audio - Playback/Recording = Mwave Wave Audio Driver D - CD Music - CD-ROM drive = D: E - CD Music - Headphones = High 4 - Infrared A - Infrared - Disabled 5 - Accessibility Options A - Fn key lock - Disabled B - Speaker Indicator - Enabled 6 - MIDI/Joystick A - MIDI port - Disabled B - Joystick - Enabled 7 - Docking Station (Not Used for PCS/SSC) 8 - External Display (Settings depend upon software load) A
NSTS 21000-IDD-760XD A - Secondary IDE Device - Enabled 16 - Power Management A - Power Properties Power - Advanced B - Power Properties Power Mode AC - Customized C - Power Properties Power Mode AC Timers - All 0’s D - Power Properties Processor AC - Maximum E - Power Properties Power Mode DC - Customized F - Power Properties Power Mode DC Timers - Suspend 0, Screen 59, HDD 20 G - Power Properties Processor DC - Maximum 17 - Status Bar A - Customized B - LCD+External Display 24
NSTS 21000-IDD-760XD 4.0 MECHANICAL 4.1 PHYSICAL OUTLINE The PGSC Flight Laptop has almost the same footprints as the commercial IBM ThinkPad 760XD. Its dimensions are 2.0 inches high, 11.7 inches wide, and 8.3 inches in depth with display folded down in the stowed position. For the PGSC with expansion assembly the dimensions are 3.5 inches high, 15.5 inches wide, and 16.5 inches in depth. 4.2 THERMAL One fan is located in the rear of the Expansion Unit Assembly for cooling.
10.5 .75 NSTS 21000-IDD-760XD FRONT EDGE 5.5 .8 1.1 0 5.0 8.65 0 0 7.3 .7 FIGURE 4-1 PGSC FLIGHT LAPTOP BOTTOM VELCRO PLACEMENT (INFORMATION ONLY) .4 FRONT EDGE 0 10.
NSTS 21000-IDD-760XD 4.4 MOUNTING CONSIDERATIONS Velcro strips are attached to the PGSC to aid in mounting the unit securely in a microgravity environment. When securing the unit, the following should be observed: a) b) c) d) e) f) 4.
NSTS 21000-IDD-760XD TABLE 4-I. - PGSC COMPONENT WEIGHTS PGSC 760XD Computer Removable hard drive 3GB Removable 8X CD-ROM Removable floppy drive External floppy drive case Floppy drive bezel SelectaDock I Expansion Unit with base and card cover Expansion Unit Base PCMCIA 260MB Hard Drive PCMMU PC board RS-422 Iso Com PC board RS-422 PC (Quatech) card/cable assembly 422 Adapter AC “W” Cable (15 ft) (SED46117063) AC “W” Cable (1.
NSTS 21000-IDD-760XD 5.0 POWER REQUIREMENTS 5.1 ELECTRICAL POWER CHARACTERISTICS 5.1.1 DC Power Electrical power characteristics were determined by high fidelity testing at the Electrical Power Systems Laboratory using a STS power bus to power a PGSC SED39126010-305 power supply that provided the necessary operating power to the PGSC.
NSTS 21000-IDD-760XD FIGURE 5-1 POWER ON AC CURRENT REQUIREMENT 5.2.
NSTS 21000-IDD-760XD 5.3 EXTERNAL POWER SUPPLY An external DC to DC power supply is required for the PGSC computer without Expansion Assembly configuration. Figure 5-3 below shows a sketch of an external power supply. FIGURE 5.3 EXTERNAL 2.6 AMP DC POWER SUPPLY 5.4 PAYLOAD-SUPPLIED POWER Power may be provided to the PGSC through a middeck payload. The unique payload to the PGSC DC interface cable must be equivalent to the PGSC DC power cable (SED331033334).
NSTS 21000-IDD-760XD 6.0 PGSC-Flight Laptop Configuration Overview Five configurations have been defined for the PGSC Flight Laptop (all configurations can use the 3Com Ethernet PCMCIA card): • Standalone with RS-422 PCMCIA Card • Docked with PC-Decom AT-Bus and RS-422 PCMCIA Cards • Docked with OCA AT-Bus Card (Ku and PADM) • Docked with Proshare AT-Bus and RS-422 PCMCIA Cards • Docked with RS-422 Sealevel AT-Bus Card All Serial Devices use either IRQ4 or IRQ3.
NSTS 21000-IDD-760XD 6.2 PGSC Flight Laptop I/O Address Table The following table lists the I/O Address allocations for all configurations. The addresses are arranged numerically (devices which use non-contiguous address will appear multiple times): Timer Keyboard Mouse RTC Secondary IDE HDD/CD OCA/PADM Proshare PC-Decom Proshare OCA/Ku COM4(422) COM2(422) 3Com Ethernet Secondary IDE Video LPT1(Prt) Video PCMCIA PCMCIA Dock COM3 FDD CD COM1(232) Video Video Video Mwave Video SD-I SCSI II 6.
NSTS 21000-IDD-760XD The following table lists the memory addresses that should be excluded for DOS applications when using an upper memory manager (such as EMM386). In addition to the address shows, memory used by a PCMCIA adapter card should also be excluded. This restriction does not apply to Windows 95 users. Memory Addresses: A0000-BFFFF Video C0000-C7FFF Video 6.5 Configuration #1 6.5.
NSTS 21000-IDD-760XD 6.6 Configuration #2 6.6.1 Configuration #2 - SelectaDock I with PC-Decom (AT-Bus) Card and Dual Port RS-422 PC-Card (PCMCIA Card) Com Port Description Internal RS-232D PC-Card #1 RS-422 #1 PC-Card #1 RS-422 #2 PC-Decom AT-Bus SCSI-II Adapter PC-Card #2 3Com Ethernet 6.6.
NSTS 21000-IDD-760XD Com Port Description Internal RS-232D OCA/PADM AT-Bus OCA/KuBand AT-Bus SCSI-II Adapter PC-Card #1 3Com Ethernet 6.7.
NSTS 21000-IDD-760XD Internal RS-232D PC-Card #1 RS-422 #1 PC-Card #1 RS-422 #2 Proshare AT-Bus SCSI-II Adapter PC-Card #2 3Com Ethernet 6.8.
NSTS 21000-IDD-760XD Sealevel ATBus RS-422 #1 Sealevel ATBus RS-422 #2 PC-Card #2 3Com Ethernet SCSI II Adapter 6.9.
NSTS 21000-IDD-760XD 6.10 RS-232C COMMUNICATIONS The PGSC contains one RS-232C asynchronous serial I/O port that provides a communication link between the PGSC and an external device. This is a standard serial port as defined in EIA STD RS232C. This port is a 9-pin version compatible with an IBM PC-AT 9-pin serial port. For RS-232C cable pin outs and description, see paragraph 7.2.1. 6.10.
NSTS 21000-IDD-760XD FIGURE 6-1 WIRING DIAGRAM, RS-422 ADAPTER 6.12 Ethernet Communications 6.12.1 3Com Etherlink III LAN PC Card The 3Com Etherlink III LAN PC Card is a COTS standard Type II PCMCIA Ethernet communications card that is PC Card 2.1 compliant. The 3Com 3C589D-COMBO card is 10BASE-2 and 10BASE-T compatible. A combo cable is attached to the card which allows the use of either a coaxial cable connection via a BNC Connector or a Level 3 twisted pair connection via a RJ-45 Connector.
NSTS 21000-IDD-760XD 7.0 INTERFACE CABLES 7.1 POWER CABLES The PGSC Flight Laptop configurations use Space Shuttle 28-Vdc power supplied only through a PGSC DC power cable. If the PGSC is powered through the payload, then the proper connector mates are the following: dc Cable connector = MS3475L-8-33S dc Mating connector = MS3470L-8-33P 7.1.
NSTS 21000-IDD-760XD 7.1.2 PGSC 28V DC Power Cable (6 feet) The dc power cable, part number SED39122875, connects the 28V DC Power Supply with the 28-Vdc Space Shuttle power or experiment dc power. For details, see Figure 7-2. FIGURE 7-2. - 28V DC POWER CABLE (6 FEET) 7.1.3 16-20V DC Power Supply Cable (25 feet) The dc power supply cable SED39126013 is required with the 28V DC power cable and 28V DC power supply to supply 16-20V DC Power to the PGSC computer configuration only.
NSTS 21000-IDD-760XD 7.1.4 AC Power W-Cables AC W cable part numbers SED46117063-301 and SEG46117140-301 connect the PGSC Expansion Unit with the 115V AC 400Hz Space Shuttle power. Use of the SEG46117140-302 through -305 cables allows for customized cable lengths when used with the SEG46117140301 W cable. Either cable permits the connection of multiple expansion units (up to a maximum of 3) from a single AC power source. For details, see Figure 7-4, Figure 7-5, and Figure 7-6.
NSTS 21000-IDD-760XD FIGURE 7-5 AC POWER W-CABLE - SED46117140-301 44
NSTS 21000-IDD-760XD FIGURE 7-6 AC POWER W-CABLE EXTENSIONS- SED46117140-302 THROUGH -305 7.2 COMMUNICATION CABLES Communication with payloads is accomplished via cables provided for the RS-232C port (for cabin payloads), and the two RS-422A ports (for payload bay payloads). 7.2.1 RS-232C Cables Two 14-foot RS-232C cables are provided for experiments located in the orbiter cabin. The first cable, a DB9 (female) to DB25 (male) part number SED33103335, is fully compatible with an IBM AT serial cable.
NSTS 21000-IDD-760XD FIGURE 7-7 DB9F TO DB25M RS-232C CABLE SCHEMATIC.
NSTS 21000-IDD-760XD FIGURE 7-8 DB9F TO DB9M RS-232C CABLE SCHEMATIC.
NSTS 21000-IDD-760XD 7.2.2 RS-422A Cables One RS-422A cable provides a communication link between the PGSC and payload in the payload bay. This cable connects the PDIP or CIP to the PGSC. The PDIP/CIP connector has a part number of NLS6GT12-35P and is a male connector. The CIP and PDIP are shown in Figures 7-9 and 7-10. A DB9-S female connector mates with an RS-422 adapter to the PCMCIA RS-422 card/cable assembly.
NSTS 21000-IDD-760XD FIGURE 7-11 RS-422A/CHANNEL 1 CABLE SCHEMATIC 49
NSTS 21000-IDD-760XD FIGURE 7-12 RS-422A Y/CABLE SCHEMATIC 50
NSTS 21000-IDD-760XD FIGURE 7-13 SED39126972 51 - PDIP RS-422 Y CABLE
NSTS 21000-IDD-760XD 8.0 MISCELLANEOUS 8.1 APPROVED FLOPPY DISKS The Customer is responsible for providing floppy disks needed to support their payload. The following floppy disks have been tested and approved for flight: • • 3M Micro Diskettes, 3.5” double-sided, high density, 2.0 MB, manual part number 05111112513 Dysan Micro Floppy Disks, 3.5” double-sided, high density, 2.0 MB manual part number 814937-01 Approved labels are as follows: • Avery Diskette Laser Labels, 3.
NSTS 21000-IDD-760XD APPENDIX A - ACRONYMS AND ABBREVIATIONS A/G ac ASCII ATU air-to-ground alternating current American Standard Code for Information Interchange audio terminal unit BIOS bps basic input/output services bits per second CGA CIP CMOS COM COTS CPU CTS color graphics adapter Computer Interface Panel Complementary Metal Oxide Silicon communication commercial off the shelf central processing unit clear to send dB dBM dc DPSK DRAM decibel(s) decibel(s) referred to 1 milliwatt direct curren
NSTS 21000-IDD-760XD I/O in.
NSTS 21000-IDD-760XD PWR power RAM RGB ROM RS RTS random access memory red/green/blue read only memory recommended standard request to send SCSI SIP SpOC SSP SVGA small computer system interface System Integration Plan Space Operations Computing Space Shuttle Program Super Video Graphics Array TSR Terminate/Stay Resident Vac Vdc VGA volts, alternating current volts, direct current Video Graphics Array W WIGSD watt(s) Windows Interface Guidelines for Software Design XGA XMS extended graphics ar
NSTS 21000-IDD-760XD ANNEX 1 Standard PGSC Flight Configurations PGSC Flight Computer Configuration 1 - Standalone In this configuration, the PGSC is an IBM ThinkPad 760XD laptop computer, modified for flight, with no Expansion Assembly. The external DC Power Supply is required with this configuration. The ThinkPad computer comes with a Pentium 166 MHz CPU.
NSTS 21000-IDD-760XD PGSC Expansion Assembly Configuration 2 - PCMMU In this configuration, the PGSC is an IBM ThinkPad 760XD laptop computer and an IBM SelectaDock Expansion Unit that contains a Sealevel ACB-530 advanced communication board for PCMMU. All units have been modified for flight.
NSTS 21000-IDD-760XD PGSC Expansion Assembly Configuration 3 - OCA In this configuration, the PGSC is an IBM ThinkPad 760XD laptop computer and an IBM SelectaDock Expansion Unit that contains an OCA PC board for Ku-band and Modem interfaces. All units have been modified for flight.
NSTS 21000-IDD-760XD PGSC Expansion Assembly Configuration 4 - ProShare In this configuration, the PGSC is an IBM ThinkPad 760XD laptop computer and an IBM SelectaDock Expansion Unit that contains a ProShare PC Board to allow for video communication on the network when OCA Router is running. All units have been modified for flight.
NSTS 21000-IDD-760XD PGSC Expansion Assembly Configuration 5 - RS-422 In this configuration, the PGSC is an IBM ThinkPad 760XD laptop computer and an IBM SelectaDock Expansion Unit that contains a Sealevel ISO-COM 3417 dual RS-422 PC Card. All units have been modified for flight.