Mhafb CDC 2a051t Vol. 3 B-1, B-2, C-17 Test Equipment

The flow rate of cooling oil from the oil-cooling cart to the LRU being tested is determined by the requirement of the UUT. This means that the flow rate is based on the specific needs and specifications of the unit under test (UUT). The UUT may require a certain amount of cooling oil flow to ensure optimal performance and prevent overheating. Therefore, the flow rate is adjusted according to the UUT's requirements to meet its cooling needs.

Relay box A provides safety interlock control for the high-voltage power supplies in bay 5.

The Digital Integrated Fast Analog/Radio-Frequency Analog Digital System test station has four Hewlett-Packard interface buses, which are identified as A, B, C, and D.

The matrix module in the C-17 ATE station is responsible for providing switching between 48 analog channels and 16 analog backplane lines. This component allows for the routing of signals between different channels and the backplane, enabling communication and testing within the system. The port modules, channel card, and central resource board may have other functions within the ATE station, but the matrix module specifically handles the switching between analog channels and backplane lines.

The facility AC power enters the advanced digital test station through the Primary AC box. This suggests that the Primary AC box is the initial point of connection for the AC power supply to the test station.

The correct answer is Hewlett-Packard Visual Engineering Environment. In the L939 test system, the Digital Integrated Fast Analog/Radio-Frequency Analog Digital System's LRU test software is executed in the Hewlett-Packard Visual Engineering Environment program. This program is specifically designed for engineering tasks and provides a comprehensive set of tools and features for testing and analyzing digital integrated systems.

The power supplies in the digital DAAE power distribution group provide the following voltages to the functional test groups (FTG): 5 VDC, 12 VDC, and +/- 15 VDC.

The cable termination list is a useful tool for troubleshooting and assembly procedures. It helps in identifying and tracing wires, which is crucial for troubleshooting any issues related to cable connections. Additionally, it provides information about the assembly procedures, ensuring that cables are correctly terminated and connected. This helps in avoiding any potential problems or errors during the assembly process. Therefore, the cable termination list is essential for both troubleshooting and assembly procedures.

The advanced digital test station controller uses two removable mass storage drives, each with a size of 80 GB. This means that there are two separate drives, and each drive has a capacity of 80 GB.

The IEE-488 bus signal lines that provide for the process that guarantees information on the bus is sent and received without any transmission errors in the Digital Integrated Fast Analog/Radio-Frequency Analog Digital System are the Handshake lines. Handshake signals are used to establish communication between devices and ensure that data is transmitted accurately. These signals include lines such as Request To Send (RTS), Clear To Send (CTS), Data Terminal Ready (DTR), and Data Set Ready (DSR). By using handshake signals, devices can confirm that they are ready to send or receive data, preventing transmission errors.

The correct answer is HP Versa Modulo Europa extension for instrumentation mainframe. This component contains the 1553 bus module that is used to test the 1553 bus communications of the Unit Under Test (UUT).

The interface connector assembly connector modules are connected to C-17 ATE station Versa Modulo Europa extensions for instrumentation components by interconnect adapters referred to as funnels. Funnels are used to channel or direct the flow of signals or data from one component to another, ensuring proper connectivity and communication between the modules and extensions.

The correct answer is PATTERN-GENERATOR. This construct is peculiar to the RF DAAE only, meaning it is not found in any other systems. The other constructs mentioned in the options, namely DIRECTION-FINDING, INTERFACE-START, and BUS-RESPONSE, are not specific to the RF DAAE and can be found in other systems as well.

The correct answer is MEASURE. MEASURE is the ATLAS command that performs the same function as the VERIFY command, but without the evaluation field. This means that MEASURE is used to gather data or information without performing any calculations or evaluations on it. It is likely used to collect raw data for further analysis or processing.

In the L939 test system, the communication system that connects all of the Digital Integrated Fast Analog/Radio-Frequency Analog Digital System's computer systems together is Ethernet.

The Keithley 237 is the correct answer because it is a digital integrated fast analog/radio-frequency analog digital system's test station power supply that is capable of providing a source voltage while measuring current or providing source current while measuring voltage.

The Avionics Control Unit (ACU) is used to test the Control Interface Unit (CIU) LRU in conjunction with the CIU FTG. The ACU is responsible for controlling and monitoring various avionics systems, including the CIU. Therefore, it makes sense that the ACU would be used in conjunction with the CIU FTG to test the CIU LRU. The other options, such as the Test Module Adapter (TMA), Advanced Tracking Unit (ATU), and Emitter Simulator Processor, do not have a direct relationship with the CIU and are not likely to be used for testing it.

Phase shifting of a pulsed RF input by 0 to 180 degrees defines biphase modulation. Biphase modulation is a type of modulation where the phase of the carrier signal is shifted between two different values to represent the binary data. In this case, the phase shift can be either 0 degrees or 180 degrees, depending on the binary value being transmitted. This modulation technique is commonly used in digital communication systems to transmit data efficiently and reliably.

A spectrum analyzer is used specifically for making measurements of RF modules. It is a device that measures the amplitude of signals in the frequency domain. It provides a graphical representation of signal strength over a range of frequencies, allowing for analysis and measurement of various parameters such as signal power, bandwidth, and distortion. Therefore, a spectrum analyzer is the correct RF module tester replaceable unit (TRU) to be used for making measurements.

The correct answer is that the unused hydraulic circuit is bypassed with a jumper hose assembly. This means that if a hydraulic circuit is not being used, it is redirected and bypassed using a jumper hose assembly. This ensures that the hydraulic system remains efficient and prevents any unnecessary pressure buildup or potential damage to the system.

The facility power enters the C-17 ATE station through the primary alternating current box. This box serves as the main source of alternating current power for the station. It receives the power from the external facility and distributes it to various components and systems within the ATE station.

The Option 01T module works with the slot 0 controller to control the switch assemblies in the instrumentation chassis 2A3.

The correct answer is rear, top. The entry ports for airflow through the station cabinets are located at the rear, allowing air to enter the cabinets from behind. The exit ports, on the other hand, are located at the top of the cabinets, allowing hot air to escape upwards. This configuration helps to ensure proper ventilation and cooling within the cabinets, as the hot air rises and is expelled from the top while fresh air is drawn in from the rear.

The peak-to-peak voltage limit of the output of the Digital Integrated Fast Analog/Radio-Frequency Analog Digital System's AFG 2020 arbitrary function generator in bay 4 is 10V.

The correct answer is the Wavetek 295 wave generator. This component has the ability to download waveforms through the GPIB (General Purpose Interface Bus) and its own front panel floppy drive. This means that it can supply a virtually limitless number of waveforms, as it can easily access and load different waveforms from external sources. The other options mentioned, such as the HP 8110 pulse generator, AFG 2020 arbitrary function generator, and HP 3245A universal source, may have their own capabilities but do not specifically mention the ability to download waveforms or have a front panel floppy drive.

The C-17 ATE's pnematic pressure stimulus cart provides one independent channel for static pressure and one independent channel for pitot pressure.

The correct answer is SETUP because it is the ATLAS command that is used specifically during internal confidence testing when programming the fixed DC power supply. This command is likely used to configure or set up the power supply for testing purposes. APPLY, CLOSE, and OPEN are not specific to internal confidence testing or programming the power supply, so they are not the correct answers.

The ST500 Ethernet transceiver is the component that alerts the operator to problems with the communication system that connects all of the Digital Integrated Fast Analog/Radio-Frequency Analog Digital System's computers together.

The Avionics Control Unit (ACU) is the correct answer because it provides the programmed I/O scenario and direct memory access for the Control Interface Unit (CIU) LRU. The ACU is responsible for controlling and managing various avionics systems and interfaces, including the CIU. It facilitates communication between different LRUs and allows for data transfer and control operations. Therefore, the ACU plays a crucial role in providing the necessary I/O scenario and memory access for the CIU LRU.

The RF synthesizer is responsible for providing the reference frequency for the RF module microwave signal conditioner (MSC) and spectrum analyzer. This reference frequency is crucial for the proper functioning and synchronization of these devices. It ensures that the signals being analyzed and conditioned are accurately measured and processed. Therefore, option 3A1A4 is the correct answer as it states that the RF synthesizer provides the reference frequency.

To make a phase noise measurement, it is necessary to have identical frequencies and constantly changing phase relationships. Phase noise refers to the random fluctuations in the phase of a signal. By having identical frequencies, it ensures that the measurements are being taken on the same frequency signal. Constantly changing phase relationships allow for the measurement of the random phase variations over time. Therefore, this combination is necessary to accurately measure phase noise.

The correct answer is -70 to +35 dBm. This range indicates that the RF modules power meter is capable of measuring RF power from -70 dBm (weakest signal) to +35 dBm (strongest signal). This means that it can accurately measure a wide range of RF power levels, making it suitable for various applications that require power measurement in this range.

The correct answer is service request. In the IEEE-488 bus interface management signal, the service request signal is an interrupt that can be sent by any device on the bus line. This signal is used to request attention from the controller or to indicate that the device has data or a command ready to be transferred. It allows devices to communicate and coordinate their actions on the bus.

The Digital Integrated Fast Analog/Radio-Frequency Analog Digital System's HP 3458A multimeter has limits of 1,000 V for AC/DC voltage, 1 amp for current, and 1 Gohm for resistance.

The frequency range of the HP 8906V audio analyzer is in kilohertz. This means that the analyzer can measure frequencies ranging from 20 Hz to 100 kHz.

The correct answer is "deskew measurement". A time domain reflectometer circuit is typically used in deskew measurements to measure and correct for any timing differences or skew between different components or signals in a digital integrated fast analog/radio-frequency analog digital system. This circuit helps ensure that signals are synchronized and aligned properly, improving the overall performance of the system.

The uninterruptible power supply in the C-17 ATE station provides power backup and protection for the computer and peripherals. This ensures that in case of a power outage or fluctuation, the computer and its connected devices will continue to receive a stable power supply, preventing any data loss or damage to the equipment.

A double-entry wire listing includes columns labeled LEVEL1 GOES TO and LEVEL 2 GOES TO. This type of wire list is used to document the connections between different levels or layers of a circuit or system. Each entry in the list specifies the source and destination of a wire connection, allowing for easy identification and troubleshooting of wiring issues.

The microwave signal conditioner (MSC) in the RF module is capable of measuring the rise/fall time, pulse repetition frequency (PRF), and modulation frequency of the signal. These characteristics are important in evaluating the performance and quality of the microwave signal. The rise/fall time indicates the speed at which the signal transitions from low to high or high to low, which is crucial in digital communication systems. The PRF represents the number of pulses transmitted per unit of time, providing information about the signal's timing and synchronization. The modulation frequency reveals the frequency at which the signal is modulated, indicating the information-carrying capability of the signal.

ATLAS statements peculiar to radar/electronic warfare (R/EW) test stations are used for various purposes, such as controlling RF synthesizers, spectrum analyzers, and fixed DC power supplies. However, the statement "5.6 kHz power sourced" does not fit into this category. It is not a type of equipment or function that would typically be controlled or managed by ATLAS statements in R/EW test stations. Therefore, it is the exception among the given options.

The RF DAAE (Digital Acquisition and Analysis Equipment) provides the digital signal processing and control in response to the IATE (Integrated Avionics Test Equipment) program during the testing of the RF source (RFS) band 4 through 8 LRU. It is responsible for acquiring and analyzing the digital signals, as well as controlling and monitoring the RF source.

The C-17 ATE station uses 4 Versa Modulo Europa extensions for instrumentation (VXI) controller cards. These cards do not occupy any slot in the VXI chassis.

The correct answer is DLM60-10. This power supply in the C-17 ATE station is actually four units set up as two master slave pairs.

The C-17 ATE station's avionics interface controllers support RS-232, RS-422, RS-429, and ARINC-573 communication. This means that the controllers are capable of facilitating data exchange and communication using these specific protocols. RS-232 and RS-422 are serial communication standards commonly used in computer systems and industrial applications. RS-429 is a recommended standard for serial data communication between avionics systems. ARINC-573 is a standard for aircraft data loading. Having support for these communication types allows the avionics interface controllers to effectively interface with various systems and devices in the C-17 ATE station.

The SIGNAL NUMBER column of the double-entry wire list is used to cross-reference with the signal family list. This allows for easy identification and tracking of signals based on their assigned numbers and their corresponding signal families. The signal family list provides additional information about the characteristics and properties of each signal, helping to ensure proper wiring and connectivity within a system.

VXI (VME eXtensions for Instrumentation) is an interface that uses the Resource Manager (ResMan) communication utility program to establish a bus communication path on the advanced digital test station. ResMan helps manage and control the resources, such as devices and instruments, connected to the VXI interface. It facilitates communication between the test station and the devices, allowing for data acquisition and control. Therefore, VXI is the correct answer for this question.

The components that must be removed and replaced as a set because of factory calibration are the VM2164 2 channel TIC, 2 VM2601 14-bit digitizers, and the SMP1200-S-11267 attenuator. This means that all three of these components need to be replaced together in order to maintain the factory calibration of the advanced digital test station.

The correct answer is LO1, LO2, and LRU 50 MHz REF. This is because the microwave signal conditioner (MSC) requires three signals for making a biphase measurement: LO1, LO2, and LRU 50 MHz REF. These signals are necessary for the modulation and referencing of the microwave signal to accurately measure the biphase modulation. The other options do not include all three required signals or include signals that are not necessary for biphase measurement.

The driver/detector card of the Digital Integrated Fast Analog/Radio-Frequency Analog Digital System is connected to the memory test/signature analyzer hardware by the digital matrix CCA.

The low-level photopic high-speed photomultiplier tube is the component that is specifically used to test the C-17's head's-up display LRU. This component is designed to accurately measure and detect low levels of light, which is necessary for testing the display. The other options mentioned, such as the high-resolution telescope and intelligent radiometer, triple-photomultiplier tube assembly and supplementary lens, and multifunction display holding fixture and supplementary lens, are not specifically designed for testing the head's-up display LRU of the C-17.