Keysight X Series Installation Notes page 24

Upgrade Instructions
Rear Brace Installation
8. Referring to Figure
screws (1) on each end. Torque the screws to 9 in-lbs.
9. Attach the rear brace to the A21 Wideband Digital IF with the two flathead screws (2). Torque
the screws to 9 in-lbs.
Figure 17 Rear Brace Installation
If the instrument has Option ST1, ST2, or R40 the rear brace installation will also require that the
optical cables also be connected and attached to the rear brace once it is installed, as seen in
Figure
damaged.
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17, install the rear brace (3) and attach it to the chassis with two panhead
18. Be careful not to pinch or bend the optical cables too tight as they can be easily
Installation Note N9042-90012