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Keysight Add 4-Port Capability Upgrade Kit
Upgrade Kit Order Number: N5241AU- 940, N5242AU- 940 and
N5249AU- 940
Installation Note
Description of the Upgrade
This upgrade kit is only for analyzers with serial numbers prefixed
MY/SG/US5150 and below. If the serial number prefix of your analyzer is
above this number, do NOT proceed with the upgrade. Analyzers with
serial numbers prefixed MY/SG/US5150 and below were manufactured
prior to February 2012, and have a older chassis style that requires older
synthesizer boards (included in this kit) without screw tabs. For more
information on part numbers, refer to Chapter 6 in the Service Guide. See
"Downloading the Online PNA Service Guide" on page
In June 2013, the N5241A/AS and N5242A/AS analyzers underwent
significant hardware changes. Some components that have 2.4 mm
connectors (bias tees, couplers, and some semi-rigid cables) were
replaced with components that have 3.5 mm connectors.
Your analyzer was originally shipped with 2.4 mm components. The 2.4
mm couplers and connecting cables in your analyzer must be replaced
with the new 3.5 mm items included in this kit.
This upgrade converts your N5241A or N5242A Option 200 2-port analyzer to
a N5241A or N5242A Option 400 4-port analyzer by adding:
— an additional 26.5 GHz source board
— an additional 13.5 GHz source synthesizer board
— an additional mixer brick
— two additional bridges
— four couplers
— a splitter
— a modified front panel, including 2 new test ports
— many new cables
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