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Author Archives: LV_TS_Test_Engineer_3000_VI
Optical Transceiver Testing
These are some of the instruments required for testing an Optical Transceiver. Instruments DCA (for eye diagram, mask Test, Jitter) Bert[Bit Error Rate tester] for testing Data Bit Error Rates vs time and Random Data Pattern Source, Clock Source. Optical … Continue reading
Hardware IO list important step for Software Programmer
Before a software can implement assignment for AD ,DA , DIO, DMM, Function Generator, etc. you need to know the Hardware IO List. assignment The Hardware Engineer(which may also be the Software Engineer) most likely will have created this list to … Continue reading
Load Resistor and Current Sensing Resistor wiring.
Load Resistor wiring must be must be in a correct order to maintain the best accuracy for monitoring the voltage across the Load Resistor. Sensing wires which are used to monitor the voltage across the resistor should be as close … Continue reading
Test Report – Typical Format
Below is a typical format used in test report. This can be txt or html. LabVIEW has report gen tools. Some Test reports can also in images (ex Scope captures images) If you are using TestStand to create the Test … Continue reading
Signal Quality with DCA , Eye Diagram, and Mask
One of the methods used for checking signal quality is overlapping DATA signal with respect to a clock (clk). Persistence must be ON for the overlapping of the DATA signal. Jitter is the variation of the timing in the signal relative to the trigger (clk) Jitter has many components … Continue reading
Rack Panel Power/Motor wiring
You did a great job of putting your high Power pins AWAY from your small signal (analog and digital). Also: Document on the schematic/assembly drawing where and what type wiring to use. Tell the technican/assembler to keep certain wires harnessed away from the … Continue reading
Self Test Fixture
Some customers request a Self Test Fixture to checkout the Test Station via the interface connection which are normally used by the UUT. In designing the Self Test Fixture you need to keep it simple but complete. Most often outputs are … Continue reading
Test Engineer’s Round Table
Yes, you do have a Round Table- and it is a big support team
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Probing the Test Fixture’s UUT connector
When probing the Test Fixture’s UUT connector use the matching pin that is made for the connector. Not using the correct mating pin or contact will damage the reliability of the connection when the UUT is connected. Most UUT Connectors … Continue reading
Keep your Test Equipment Manager in the loop
It is important to keep your Test Equipment Manager informed of the following: cc Status(once a week). I will have a separate blog on subject. Anytime there is something preventing you from performing your assigned task. Change is scope of … Continue reading
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