CableMeter
Checking the Wire Map
17
numbe when the Cable ID is detected but the Cable ID
number cannot be detemined with certainty.
Without a Cable ID Unit connected to the far end of the
cable, the test tool displays “—“ for the ID number.
The following display indicates the near end wiring of a
cable without a Cable ID Unit connected.
abm25f.eps
The IBM data connector contains self-shorting
connections between pins 5 and 6 (TX- and RX-) and 1
and 9 )RX+ and TX+) on the STP connector. Since this is
a normal connection for the IBM data connector, the tst
tool does not display a failure. In the wire map function,
the presence of these shorts are displayed as shown
below:
abm26f.eps
Pins connected to wires comprising twisted pairs are
grouped together in the display.
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