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Option EXM, External Mixing Upgrade Kit
Add Cables to A13 Front End and A15 Front End Controller, RF/Microwave PXAs
NOTE
This procedure only applies to RF and microwave PXAs (frequency range options
503, 508, 513, and 526). If your PXA has frequency range option 543, 544, or 550,
refer to the "Add Cables to A13 Front End and A15 Front End Controller,
Millimeter Wave PXAs" which follows.
1. Locate the longer of the two flexible coax assemblies in the Opt EXM Cable Kit with Markers.
This is cable W30 and should be labeled "8120-2027" and have the ends labeled "903" and "13".
2. Connect the end of W30 that is labeled "903" to A15J903.
3. Connect the end of W30 that is labeled "13" to A13A1J13. J13 is one of the connectors along the
right side of A13, near the A12 BYFA. Torque the cable nut to 10 inch-pounds.
4. Remove the SMA termination on A13A1J8. A13A1J8 is directly above A13A1J13.
5. Locate semi-rigid coax cable, part number N9020-20132, in the upgrade kit. This is W17. Connect
the end with the SMA male connector A13A1J8, with the SMA female connector pointing towards
where the front panel would be. The long, straight section of W17 should be parallel to the casting
of the A13 Front End and parallel to the side chassis. Refer to
inch-pounds.
Figure 6
Orientation of W17 in an RF/Microwave PXA
14
Figure
7.Torque the cable nut to 10
Installation Note
N9030-90058
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