Keysight E4980A/AL User’s Guide -475
Handler Interface
Setting Up the Handler Interface Board
Follow these steps to properly set up the jumpers and bit switch as well as the
pull-up resistor.
Setting up the jumpers, bit switch, and pull-up resistor
Step 1. Turn off the power to the E4980A/AL, unplug the power cable, and wait for a
few minutes until the internal capacitors are completely discharged.
Step 2. Remove the two screws that secure the handler interface board to the
E4980A/AL’s rear panel.
Step 3. Draw out the handler interface board and unplug the flat cable that is
connected to it.
Step 4. Remove the handler interface board.
Step 5. Go through the following flow chart to determine the jumper and bit switch
settings for the test result output signals:
The handler interface board has a label “S1” that indicates where bit
switch S1 is located.
Only one of bits 1 through 4 can be ON at a time. You cannot turn ON any
more than one bit at a time.
When you use the +5-V output of the handler interface connector (pins 16
to 18), set up the circuit common line by turning ON bit 5 or 6 of bit switch
S1 and use COM1 or COM 2 connected with the instrument's circuit
common line as a +5-V common line.
Do not disconnect the handler interface board from the instrument
immediately after turning on or off the power to the E4980A/AL. Doing so
could damage the handler interface board and the E4980A/AL itself.
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