Argus 165, Руководство пользователя

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23 Copper tests
260
ARGUS 165
Line scope status display

The line scope can identify a variety of
states or occurrences on the line.

This example shows the ADSL (Annex B)
connection with ISDN-U interface estab-
lished between the modem and DSLAM.

The line scope is located in direct proxim-
ity to the modem, as it is particularly effec-
tive upstream in the spectrum.

If the upstream were significantly less than
the downstream, it would be in direct prox-
imity to DSLAM.
<Menu>

Finding the modem:

In addition to the general state of the line/
connection, a variety of events can be
detected.

In this example, we can see the hand-
shake tones that a modem connected to
the line sends periodically in order to
establish a connection with the DSLAM.
This also reveals whether or not an active
modem is connected to the other end of
the line.

In addition to the wanted signals such as the DSL spectrum or the handshake tones, the
line scope can also detect unwanted signals such as temporary interference sources (real-
time operation) or peculiarities in noise (with respect to background noise).


Connection example without probe:

Opens the graph function, see
page 262