Characterizing MIL-STD 1553 and ARINC 429 Serial Bus Networks
1 Hour | Webcast - enregistré | Où et quand
The most common serial buses used today to interconnect and communicate between aircraft computers, peripheral avionics equipment, and sensors are the MIL-STD 1553 bus (military applications) and the ARINC 429 bus (commercial applications).
Measuring the physical layer (electrical/analog) characteristics of these buses have traditionally been performed using conventional analog or digital storage oscilloscopes (DSO). But due to the complexity of these serial bus signals, isolating measurements at specific terminals/subsystems based on remote terminal addresses (MS-1553) or Labels (ARINC 429) have been difficult, if not impossible, using a conventional oscilloscope.
It is now possible in some of today’s more advanced DSOs to automatically trigger on and decode MIL-STD 1553 and ARINC 429 buses. During this seminar we will begin with a review of the protocol and timing of both the MIL-STD 1553 and ARINC 429 buses. With the DSOX3AERO option, we will show how Agilent’s 3000 X-Series oscilloscope can be setup to trigger on specific input or output words/messages based on remote terminal address (RTA) in the case of MIL-STD 1553, or based on specific Labels in the case of ARINC 429. We will then show how physical layer characteristics, such as minimum & maximum voltage swing, transition times, zero-crossing-distortion, and half bit-widths, can be quickly measured and compared against published electrical specifications.
Also included in the presentation will be a discussion of how eye-diagram mask testing can be used to quickly perform pass/fail testing of these buses. Eye-diagram mask testing on serial bus signals can provide you with a measure of your network’s overall signal quality by overlaying all digitized bits, and then comparing the overlaid bits against a pass/fail mask which is based on published amplitude and timing specifications.
Who should attend?
- R&D engineers that develop avionics equipment
- Aircraft manufacturers that integrate avionics/electronic systems into the aircraft
- Aircraft avionics maintenance technicians
The Presenter: Johnnie Hancock
Johnnie Hancock is a Product Manager at Agilent Technologies Oscilloscope Products Division. He began his career with Hewlett-Packard in 1979 as an embedded hardware designer, and holds a patent for digital oscilloscope amplifier calibration. Johnnie is currently responsible for worldwide application support activities that promote Agilent’s digitizing oscilloscopes and he regularly speaks at technical conferences worldwide. Johnnie graduated from the University of South Florida with a degree in electrical engineering. In his spare time, he enjoys spending time with his four grandchildren and restoring his century-old Victorian home located in Colorado Springs.
Où et quand
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