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For residential telephone wiring
the jack to the right only 2
pins or 1 blue pair is being
used. Notice that the colour of
pairs is different than the
above RJ 45 and that the used
pins are also different. Also
notice how the colours match
with the chart
Telephone
Rollover Cable Schematic
You can
identify a telephone rollover
cable by comparing the two
connectors at each end of the
cable. Hold the cable ends
side-by-side,
looking at the bottom where the
pins are exposed
The wire connected to the pin on
the outside of the left
connector should be the same
color as the wire connected to
the pin on the outside of the
right connector. Telephone
rollover cables are not 10Base-T
cross over cables. Refer to the
above chart for 10/100 Base-T
Cross over Cables. |
