Connecting To A Line Passive - Arcom Digital Quiver XT User Manual

Connecting to a line passive

From a simplicity perspective, the most desirable point
to connect the TDR to the network is at the first line passive
in a span of cable (from amplifier to the next amplifier).
Connection is made by using a QTP 20 resistive test probe
that attaches directly to the center connector seizure screw
via the seizure screw access port on
the line passive. The Tx and Rx cables
can be connected to either of the QTP
20 output ports.
When connecting with a probe,
depending upon signal levels it might
be necessary to use an external return
amplifier to boost signal levels. The
Arcom Digital Q-AMP is designed for
this purpose. Since we need to amplify
the very low level Received (Rx) signal,
the Q-AMP must be placed on the Rx
port, and the user needs to pay
attention that the input to the Q-AMP
is on the probe side and the output is
on the meter side. An illustration of
the connection is shown to the right.
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