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7.1 Line Test
The ARGUS tests the terminating resistors for the cabling of
a four-wire bus. Additionally, the test also detects errors in
the cabling e.g. any broken wires, short-circuits and crossed
wires.
Unplug the NT and all terminal equipment from the
bus, before performing a line test!
If the ARGUS detects an operator error (Line test on a fed
bus), it will emit a continuous acoustic signal. In this case, to
prevent the destruction of the ARGUS, the line test will not
be started.
Test sequence:
To perform a thorough test of the lines, the test must be
done in 2 steps.
First step:
Use the test adapter to connect the ARGUS to the lines to
be tested. In this step, the ARGUS will determine whether or
not there is a short circuit or a terminating resistor and
whether there is a fault between the terminating resistor – if
there is one – and the test adapter.
3
6
4
5
Socket 1
ARGUS 3u plus/3u NT
7 Setting the type of access
Unplug the NT!
BRI
Last
socket
NT
U Interface
L-Test jack
27
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