Which cable to use ?
one should ensure proper cabling of devices while wiring devices together.the following table
shows which cable should be used when wiring the devices together.
IF DEVICE A has a: IF DEVICE B has a: THEN use this cable
computer com port console of router/switch rollover
computer NIC switch straight-through
computer NIC computer NIC crossover
switch port router;s ethernet port straight-through
switch port switch port crossover
router's Ethernet port routee;s ethernet port crossover
computer NIC router;s ethernet port crossover
router;s serial port router;s serial port cisco serial DCE/DTE cable
Pinouts for different Ethernet cables
straight-through cables crossover cable Rollover
pin 1-pin 1 pin 1-pin 3 pin 1-pin 8
pin 2-pin 2 pin 2-pin 6 pin 2-pin 7
pin 3-pin 3 pin 3-pin 1 pin 3-pin 6
pin 4-pin 4 pin 4-pin 4 pin 4-pin 5
pin 5-pin 5 pin 5-pin 5 pin 5-pin 4
pin 6-pin 6 pin 6-pin 2 pin 6-pin 3
pin 7-pin 7 pin 7-pin 7 pin 7-pin 2
pin 8-pin8 pin 8-pin 8 pin 8-pin 1
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