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Circuit Schematic of HP 16442A Test Fixture
Figure 1-1 shows the circuit schematic of HP 16442A.
Figure 1-1. Circuit Schematic of HP 16442A Test Fixture
HP 16442A is equipped with an interlock (Intlk) terminal, which prevents the user from
getting an electric shock during operation.
If more than 40 V will be forced to HP 16442A, be sure to connect Intlk terminal of HP
16442A to Interlock terminal of measurement instrument using an Interlock/LED cable (HP
16493J option 001 for 1.5 m, HP 16493J option 002 for 3.0 m).
When the lid of HP 16442A is open, two switches of the Intlk terminal are open. The
instrument recognizes that the lid of HP 16442A is not closed and does not output high
voltage (more than ±40 V).
HP 16442A User's Gude 5
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