Page:Apollo Mission Simulator Instructor Handbook - Volume 1.djvu/68

SM-6T-2-02 APOLLO MISSION SIMULATOR INSTRUCTOR HANDBOOK  The unit provides the instructor with the capability to perform the following functions:


 * 1) Enter or clear simulated malfunctions in the computer program,
 * 2) Display the status of any selected simulated malfunction.
 * 3) Erase any selected simulated malfunction or clear all active malfunctions from the program.

For purposes of discus sion, the MIU is divided into its three major portions: control panels, display panels, and logic circuitry.

MIU Control Panel.

Three control panels, one at each instructor station, are located on the IOS. These panels permit the instructor to initiate instructions regarding simulated malfunctions to the computer via the logic circuitry. Simulated malfunctions are coded alphanumerically. The system designation appears as the lettered portion of the code with eleven systems so identified. This coding identifies the 800 simulated malfunctions presently under consideration plus an expansion capability of up to 1500 computer-stored simulated malfunctions. Figure 1-18 illustrates the MIU control panel. The functions of the controls are described in table 1-17.

MIU Display Panel.

This panel displays information pertaining to simulated malfunction seletion and status. Three panels are provided; one on the T/M console, and the other two are located in the right and left-hand pie sections of the IOS. From these panels, the instructors can determine the status of any simulated malfunction in the computer program or that he has manually entered. Panel arrangement is shown in figure 1-19 and the functions of the indicators are provided in table 1-18.

1.3.1.15 Time Displays.

There are two time display panels located on the IOS, as shown in figure 1-20. Each display contains two digital readouts whose functions are described in table 1-19. These displays are not repeaters of on-board timers. They function to aid the instructor in various applications to the training problem.

In addition to the timers mentioned above, there is a digital time code translator, supplied as GFE, located on top of the central IOS console. This unit is the interface between the AMS Central Timing Equipment and the IMCC/SCATS equipment. In addition to providing a visible readout of real GMT time, that is coordinated within the FCSD simulation complex, it also provides the 1 KC, 1 pps, and the 1 ppm timing signals derived from WWV for the AMS. The Time Code Translator is illustrated in figure 1-21 and each control and display is functionally described in table 1-20. 1-38