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Receiving Inspection of Data Bus Couplers

From North Hills Signal Processing
 

 

Checking MIL-STD-1553 data bus couplers at receiving inspection just got simpler. By using the DBT100A, a coupler can be functionally checked in a matter of seconds for continuity, opens, shorts, phasing and cor¬rect operation. It is ideally suited for large or small volume testing. All tests except resistance tests are go/no-go.

To test a coupler simply connect the unit to be tested as shown in Figure 1. With the terminators in place, test the coupler as if it were a multi stub bus network.

1.) Connect the Main Unit DBT100A to a stub of the unit under test.
2.) Depress buttons 1 - 5 and observe results.
Button 1 - go/no-go test. Checks for shorts between stub conductors and shield.
Button 2 - measures the resistance of the stub cable and transformer winding. It should be between 1 and 5 ohm depending on the coupler.
Button 3 - go/no-go test. Checks shorts between bus conductors and shield.
Button 4 - go/no-go test. Checks for shorts and opens on the bus and missing terminators.

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Topics of Interest
To use the tester, there are five press-to-test buttons. Testing only occurs when the appropriate button is depressed. The button should be held down for approximately five seconds to allow the test... (Read More)
Making a test or simulation setup for a MIL STD-1553 data bus system is made easy with North Hills 70 Series" Data Bus Coupler Kit. This "Kit" can be tailored to your specific needs and includes all... (Read More)
As with so many things, the design and manufacture of couplers involves many trade-offs, most having to do with cost. The minimum requirements for data bus couplers (MIL-STD-1553) are quite open and... (Read More)
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