H3C S12500X-AF Series, Hardware Reference Manual

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Table 2 Ethernet cable description
Type Description
Category 5 Transmits data at a maximum speed of 100 Mbps, with a bandwidth of 100 MHz.
Category 5e Transmits data at a maximum speed of 1000 Mbps, with a bandwidth of 100 MHz.
Category 6 Transmits data at a speed higher than 1 Gbps, with a bandwidth of 250 MHz.
Category 6A Transmits data at a speed higher than 10 Gbps, with a bandwidth of 500 MHz.
Category 7 Transmits data at a speed higher than 10 Gbps, with a bandwidth of 600 MHz.
NOTE:
Connect 10-Gigabit RJ-45 ports on the switch by using category 6A or category 7 twisted pair
cables. Connect other RJ-45 ports on the switch by using category 5 or above twisted pair cables.
Based on pinouts
Ethernet twisted pair cables can be classified into straight through and crossover cables based on
their pinouts.
•
Straight-through —The pinouts at both ends comply with standard 568B, as shown in Figure 3 .
•
Crossover —The pinouts at one end comply with standard 568B, and those at the other end
comply with standard 568A, as shown in Figure 4 .
Figure 3 Straight-through cable
Straight-through cable
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white/orange
orange
white/green
blue
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green
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