150
Cable type
Based on performance
Ethernet cables can be classified into category 3, category 4, category 5, category 5e, category 6, and
category 7 cable based on performance. In LANs, category 5, category 5e, and category 6 are
commonly used.
Table 78 Description on commonly used Ethernet cables
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 maximum speed of 10 Gbps, with a bandwidth of 250 MHz.
NOTE:
The RJ-45 Ethernet interfaces of the S7500E
her Ethernet twisted pair cables
for connection.
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 62.
• Cr
ossover: The pinouts at one end comply with standard 568B, and those at the other end comply
with standard 568A, as shown in Figure 63.
Figure 62 Straight-through cable
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