H3C Technologies H3C S10500 Series Switches - Manual (Page 111)

101
Figure 71 RJ-45 connector pinout diagram
Cable pinouts
EIA/TIA cabling specifications define two standards: 568A and 568B for cable pinouts.
• Standard 568A—pin 1: white/green stripe, pin 2: green solid, pin 3: white/orange stripe, pin 4:
blue solid, pin 5: white/blue stripe, pin 6: orange solid, pin 7: white/brown stripe, pin 8: brown
solid.
• Standard 568B—pin 1: white/orange stripe, pin 2: orange solid, pin 3: white/green stripe, pin 4:
blue solid, pin 5: white/blue stripe, pin 6: green solid, pin 7: white/brown stripe, pin 8: brown
solid.
Cable type
Based on performance
Ethernet cables can be classified into category 3, category 4, category 5, category 5e, category 6,
category 6A, and category 7 cable based on performance.
Table 69 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.
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 72 .
• Crossover—The pinouts at one end comply with standard 568B, and those at the other end comply
with standard 568A, as shown in
Figure 73 .
PIN #8
PIN #1