Keysight N5247-60103 Installation Note page 19

Step 14. Install the Step Attenuators
Refer to Figure 5 for this step of the procedure. New parts are listed in Table 1 on page 7. Use a T-10 TORX driver
to tighten all screws.
Figure 5 Port 1 and Port 4 Step Attenuators Installation
18 Installation Note N5247-90103