H3C Technologies H3C S12500-X Series Switches - Manual (Page 126)

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RJ-45 connector
An Ethernet twisted pair cable connects network devices through the RJ-45 connectors at the two
ends. Figure 67 shows the pinouts of an RJ-45 connector.
Figure 67 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 67 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 S12500-X switch by using category 6A or category 7 twisted
pair cables.
• Connect other RJ-45 ports on the S12500-X switch by using category 5 or above twisted pair cables.
PIN #8
PIN #1