Keysight M9380A, Startup Manual

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Step 4: Install the Modules
M9380A Cable and Module Table
Keysight Part
Number
Connection Cable Description
8121-2063 This cable can be used to direct an External Reference into the M9300A
Ref In connector.
Cable, coaxial, BNC (male) - SMB (female),
1200 mm
8120-5091 M9300A 100 MHz Out 1 to M9301A 100 MHz In Cable, coaxial, SMB (female)-SMB
(female)
8120-5091 M9301A 100 MHz Out to M9310A 100 MHz In Cable, coaxial, SMB (female)-SMB
(female)
W1312-20237 M9301A RF Out 1A to M9310A RF In Cable, semi-rigid (SMA-SMA)
Torque specification for all SMA connectors is 8 Lb-In (0.904 Nm).
Sharing the M9300A Frequency Reference
The M9300A Frequency Reference module can be shared by the up to five configurations of the M9380A CW
Source or the M9381A Vector Signal Generator. If you connect to a hardware configuration that includes a
currently connected M9300A (either independently or as part of another hardware configuration) the latest
instance of the SFP will take control of the M9300A. You will see no warning or error message.
While the M9300A module is being shared, any of the configurations that share this reference can control it
fully, including setting the reference to use an external frequency reference source. If the external frequency
reference setting does not match that of the supplied frequency, the reference will be unlocked, as expected.
However, only the instance of the SFP that creates the reference unlock condition can correct the problem.
This is done by either correcting the frequency or by setting the reference back to internal, so that a sub-
sequent instance will not take control of the reference module unintentionally.
The Reference module can also be shared among multiple measurement applications, such as the Keysight
89600 VSA software. The Reference module must be initialized before use, so including it in all configurations
allows applications to be started in any order. However, when sharing a module the user interface of some
applications may not reflect M9300A settings made by other applications. For example, the Keysight 89600
software can control the Reference module internal/external setting, but the changes made by other applic-
ations will not be reflected in the Keysight 89600.
FPGA updates are not allowed on a Keysight M9300A PXIe Frequency Reference while it is being shared. To per-
form M9300A FPGA updates, reserve the Reference.
Reserving the Reference for a Configuration
Keysight M9380A PXIe CW Source
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