Keysight X Series Installation Notes page 22

Upgrade Instructions
A21 Wideband Digital IF
6. Referring to Figure
the instrument, being careful not to damage any of the coax cables that attach to it.
7. Reconnect the coax cables to their corresponding connectors on the A21 Wideband Digital IF.
Figure 15 A21 Wideband Digital IF Installation
If the instrument has Option R40, the A22 Ultra-Wideband Analog IF will also need to be
installed, as seen in
22
15, use the extractors (2) to insert the A21 Wideband Digital IF back into
Figure 16.
Installation Note N9042-90012