Keysight N5241BU-205, Installation Note

Page: 36 / 60

36 Installation Note N5242-90125
Description of the Upgrade
Installation Procedure for the Upgrade
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Step 20. Install the New Bias Tee Combiner’s Semirigid Test Set
Cables and the Blue Cables, and Install Cable Clamps on the Ferrite
Beads
This step contains the following:
— “Install the New Semirigid Test Set Cables” on page 37
— Refer to Figure 19 on page 37 and Figure 20 on page 38 .
— “Install New Blue Bias-Tee Combiner Cables N5240-60097 (x1) and
N5240-60098 (x1) Gray Cables From the A71 and A74 Bias Tees "RF-IN" to
the A75 LFE Board "Port1" and "Port2" Connectors, and Cable Clamps
Onto Ferrite Beads” on page 39
Follow instructions carefully when making cable connections, especially
wire harness connections. Incorrect connections can destroy components,
resulting in additional customer costs.
Be careful not to damage the center pins of the semi-rigid cables. Some
flexing of the cables may be necessary but do not over-bend them.
To avoid damage when connecting and torquing the bias T combiner
semirigid cables, always use a wrench to hold the bias T combiner
connectors.
Use a 5/16-in torque wrench set to 10 in-lbs on all cable connections
except the front and rear panel bulkhead connectors. On these, use a
9 mm nutsetter or open end torque wrench set to 21 in-lb.