GS748T Software User Manual
Category 5 Cable Specifications
Ensure that the fiber cable is crossed over to guarantee link.
Table
Table C-1. Electrical Requirements of Category 5 Cable
Specifications | Category 5 Cable Requirements |
|
|
Number of pairs | Four |
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|
Impedance | 100 ± 15% |
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|
Mutual capacitance at 1 KHz | 5.6 nF per 100 m |
|
|
Maximum attenuation | at 4 MHz: 8.2 |
(dB per 100 m, at 20° C) | at 31 MHz: 11.7 |
| at 100 MHz: 22.0 |
NEXT loss (dB minimum) | at 16 MHz: 44 |
| at 31 MHz: 39 |
| at 100 MHz: 32 |
|
|
Twisted Pair Cables
For two devices to communicate, the transmitter of each device must be connected to the receiver of the other device. The crossover function is usually implemented internally as part of the circuitry in the device. Computers and workstation adapter cards are usually
Figure C-1 illustrates straight-through twisted pair cable.
Network Cabling |