16 Installation Guide
E444xAU Options H20, H25 and H70 E444xAU IF Output Options
Installation Procedure
7. Carefully route the cables along the top of the rear frame and between the board
extractors to insure that they will not be damaged when installing the chassis cover.
Refer to Figure 12 on page 13. Connect the cables as follows:
• Connect the new 321.4 MHz IF Output cable (E4440-60411) (W40) in the instrument
from the 321.4 MHz Output connector on the 3rd Converter board to the 321.4 MHz
IF Input (J1) on the Option IF board. Refer to Figure 11 on page 13 and Figure 15 on
page 17.
• Connect the 321.4 MHz IF Output cable (E4440-60412) (W51) on the rear panel to
the 321.4 MHz IF Output connector (J5) on the Option IF board.
• Connect the Option IF Output cable (E4440-60413, W41) on the rear panel to the
Option IF Output connector (J2) on the Option IF board.
8. Attach the appropriate option label (H20, H25 or H70) to the rear panel next to the
existing list of options on the serial number label.
9. Install the chassis cover, instrument cover, side handles, bottom and rear feet in
reverse order of the removal process described in the beginning of this procedure.
10. Install licence key to enable Option H20, H25 or H70. Refer to Option Upgrade
Entitlement Certificate for option license procedure.
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