HT instruments М75 - Manual (Page 25)

M72 - M73 - M74 - M75
EN - 23
4.11.3. Cabling errors detected by the instrument
Cabling errors Description Visualization Mapping
OPEN PAIR
One or both conductors
of the pair are interrupted
(open)
1
2
4
3
5
6
S
8
7
1
2
4
3
5
6
S
8
7
REVERSED PAIR
The conductors of the
same pair are reversed
1
2
4
3
5
6
S
8
7
1
2
4
3
5
6
S
8
7
SHORTED CABLES
Two conductors are in
short circuit between
each other
1
2
4
3
5
6
S
8
7
1
2
4
3
5
6
S
8
7
TRANSPOSED
(CROSSED) PAIRS
Two pairs are crossed
1
2
4
3
5
6
S
8
7
1
2
4
3
5
6
S
8
7
MISWIRE
Generic cabling error,
such as for example two
conductors belonging to
different pairs are
exchanged
1
2
4
3
5
6
S
8
7
1
2
4
3
5
6
S
8
7
SPLIT PAIRS
The pin to pin
correspondence is hold,
but physically the
conductors of two pairs
are crossed
1
2
4
3
5
6
S
8
7
1
2
4
3
5
6
S
8
7
Table 2: Possible cabling errors detected by the instrument