Keysight Technologies N4373D, User Manual

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Getting Started
34
Keysight
N4373D Lightwave Component Analyzer, User’s Guide
Using the correct connectors
The optical input and output of the
Keysight
N4373D Lightwave
Component Analyzer use
angled connectors. Depending on the
option you ordered, you will also have received two patchcords.
• option 021 includes patchcords with an angled and a straight
connector
• option 022 includes patchcords with two angled connectors
Using the patchcord ensures the best “ripple” performance
(lowest ripple) for your measurements. Two or more, straight
connector interfaces in the optical measurement path can cause
optical cavities. These result in frequency dependent
interference effects (ripple), which may significantly degrade
the performance of the LCA. This may impact user calibrations
in OE and OO measurements. We recommend you use the
patchcords supplied to minimize the number of straight
connections.
Using the patchcords also keeps service costs down, as the
adaptor patchcord can be exchanged easily.
C A U T I O N
Always use patchcords to connect to your DUT. This protects the
connectors of the optical test set, by minimizing the number of
connector changes.
C A U T I O N
The contact connector on the optical test set is angled. If you are
using a patchcord with straight (red) and angled (green)
connectors, make sure you connect the angled connector to the
optical test set.

Connecting to the optical test set with a straight connector will
damage it.
C A U T I O N
Before you connect any fiber-optic cable to the Lightwave
Component Analyzer, please ensure it has been properly cleaned.

Fiber-optic connectors are easily damaged when connected to
dirty or damaged cables and accessories. When you use improper
cleaning and handling techniques, you risk expensive instrument
repairs, damaged cables, and compromised measurements.