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Insertion Loss Testing Overview
Single Ended Method
• A test launch jumper is connected to a source and a detector as
shown in Figure 1. The detector is “zeroed” to eliminate the effects
of loss through both the launch jumper and the connection between
the launch jumper and source.
Figure 1
NOTE:
V-System kits are configured for Substitu-
tion Method. All other kits are configured
to use the Single Ended Method.
For 50 and 62.5 µm testing only, an ad-
ditional step is required: Wind the launch
jumper around the mandrel (provided with
the 50 and 62.5 µm kit only), ensuring the
cable follows each groove and is clipped
into both ends of the mandrel where pinch
ports are evident. The mandrel should be
wound within approximately a half meter
of the source connector end. (
See photo
at left.
)
Use the gray mandrel for 50 µm.
Use the black mandrel for 62.5 µm.
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