SmartEdge 600 Router Hardware Guide
1.18 10/100 Ethernet and Fast Ethernet–Gigabit Ethernet
Cables
The choice of an Ethernet straight or crossover cable for a port on the 10/100
Ethernet card depends on the equipment to which it is being connected.
Table 20 Cable Options for a 10/100 Ethernet Line Card
Configuration Cable Type
Port is connected to a router. Straight
Port is connected to a switch. Crossover
Port is connected to a 10/100 Ethernet port in another SmartEdge router. Crossover
Note: The 10/100 Ethernet line card wiring is cross-connected like a switch or
hub; this condition is denoted with the label “X” by each port.
1.18.1 10/100 Ethernet Crossover Cable Pin Assignments
Both ends of this shielded and grounded cable are terminated in standard
RJ-45 eight-pin modular plugs.
Table 21 10/100 Ethernet Crossover Cable Pin Assignments
Signal Name Pin Notes
Rx (+)
3
–
Rx (–)
6
–
Tx (+)
1
–
––
Termination network
––
Termination network
Tx (–)
2
–
––
Termination network
––
Termination network
1.18.2 10/100 Ethernet Straight Cable Pin Assignments
Both ends of this shielded and grounded cable are terminated in standard
RJ-45 eight-pin modular plugs.
Table 22 10/100 Ethernet Straight Cable Pin Assignments
Signal Name Notes
Rx (+)
–
Rx (–)
–
Tx (+)
–
–
Termination network
18 27/153 30-CRA 119 1170/1 Uen A | 2010-04-09
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