-462                                                                                           Keysight E4980A/AL User’s Guide
Bias Current Interface
Preparation
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40 A System
Connect the E4980A to the 42841A and the 42842B as shown in Figure D-2 on 
page 463 using the following procedure.
1. Connect the UNKNOWN terminal of the E4980A to the TO UNKNOWN 
terminal of the 42842B using the 16048A test lead.
2. Connect the 42842B test fixture directly to the front panel of the 42841A.
3. Connect the DC Bias Current Output Connector of the 42841A (that is not 
connected to the 42842B and DC Bias Current Input Connector of the 
42842B side panel) using a 42843A Bias Current Cable.
4. Connect the E4980A Bias Current Interface connector to the Bias Current 
Control Input A connector of the 42841A using the furnished Bias Current 
Interface Cable (1) and the adapter. The cable is furnished with the 
42841A and the adapter is furnished with the E4980A.
5. Connect the 42841A Bias Current Control Input B connector connected to 
the 42842B to the Bias Current Control Input A connector of the other 
42841A using the furnished Bias Current Interface Cable (2).