Specifications

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. There is also a fan

mounted internally on the Video card within the IBM ThinkPad 760XD computer with a small

outlet vent on the rear of the computer. The fan within the computer is not visible or

accessible to the user. The fans in the expansion chassis and computer allow for cooler

operation in the microgravity environment. However, testing performed on the computer

indicated a 7 degree Fahrenheit exceedance of the 113-degree F allowable touch temperature

limit. A waiver for this requirement was applied for and granted (ref. G05149). Do not block

the vent or fan during operation of the units.

4.3 Velcro LOCATIONS AND OUTSIDE DIMENSIONS

The structural interface with habitable modules (Space Shuttle Orbiter, SpaceHab, etc.) is with

Velcro. Refer to drawing SDZ39129262, Computer Assembly, Payload and General Support

Computer (PGSC) and SEZ39131224, Expansion Unit Assembly, for details of Velcro

placement, connectors, and markings. See Figure 4-1 and Figure 4-2 for illustration of

Velcro placement.