13
4. Cables with molded on ends:
Many cables have molded on ends that cannot
be opened up for repair. The entire cable must be
replaced, or the molded on end removed and
replaced with a user serviceable
connector .These types of cables usually fail from
Opens or Shorts. They seldom fail from a
Crossed connection
.
5. Cables with crimped on RJ connectors:
Crimped on RJ connectors cannot be reused or
repaired. New connectors must be installed on
the cable. If the cable being tested has just been
made up or put in service, and it tests as Open or
Crossed, the RJ connectors have probably been
installed incorrectly. Shorts very seldom occur as
the result of a badly crimped RJ connector, so
the user should suspect a problem with the wire
(possibly a staple or mail through the wire, or a
crushed or pinched wire) if the 4 in 1 indicates a
short. A visual examination of the RJ connectors
may reveal the fault---but keep in mind that
what-ever the cause of a connector problem (i.e.
mis-wiring improper stripping of the wire, bad
crimp, etc.) The only solution is to replace the
connector. Consequently, it is not necessary for
the user to know the exact cause of the problem,
simply to make sure that he installs the new
connector correctly!
6.
Conflicting Results:
Sometimes, the test results of the 4 in 1 seem to
conflict with the performance of the cable---i.e.,
the cable tests badly but works OK, or vice versa.
The following items list some of the reasons why.
