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Ethernet Network Cabling Guidelines
Table 1
RJ-45 Pin
1
2
3
6
1. Pins 4, 5, 7, and 8 are not used for signaling but to reduce radiated cable emissions.
Ethernet Network Cabling Guidelines
Table 2 describes some guidelines for creating Ethernet networks. Figures might
vary, depending on the manufacturer of the network equipment.
Table 2
Specification
Maximum
segment length
Maximum number
of segments per
network
Cisco 1750 Router Hardware Installation Guide
ii
Straight-Through Ethernet Cable (RJ-45-to-RJ-45) Pinouts
1
Signal
TX+
TX–
RX+
RX–
Ethernet Cabling Guidelines
10BaseT
100 meters
5
Direction
RJ-45 Pin
—>
1
—>
2
<—
3
<—
6
100BaseTX
100 meters
With Class I
•
repeaters:
1
With Class II
•
repeaters:
2
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Troubleshooting
