22 Copper tests
ARGUS 152
309
22.4.2 Connecting the Active Probe II
Connect ARGUS to the Active Probe II via the Line socket and the USB-A interface (host).
ARGUS supplies the Active Probe with a voltage of 5 V via the USB host interface.
Connect the Active Probe to the line to be tested (in this example Active Probe II between
modem and DSLAM) using a lead that is as short as possible (< 5 cm).
Connection example:
22.4.3 Starting Active Probe II (example with line scope)
After starting a test (in this example with
Line scope), you can open the Probe
menu using the graph functions or the
number key
.
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The connection cable and adapter supplied with the device have been
designed to be as short as possible. The Active Probe II should be operated
using leads that are as short as possible. To obtain optimum measurement
results, it is important for the Active Probe to be connected in direct proximity
to the line to be tested. Every extension of these connecting leads increases
the input capacitance of the Active Probe, which can falsify the measurement
results. Even the positions of the two leads in relation to each other can falsify
the results as the lengths increase. When the Active Probe is used as
supplied, ARGUS automatically subtracts the additional attenuation from the
measurement results.
