Ethernet Twisted Pair Cable; Cable Pinouts - H3C S7500X Series Installation Manual

Appendix E Cables
This chapter describes the cables used for connecting network ports.
Table 1 Cable description
Cable
Console cable
USB console cable

Ethernet twisted pair cable

Optical fiber
SFP+ DAC cable
QSFP+ DAC cable
QSFP+ to SFP+ DAC cable
Ethernet twisted pair cable
An Ethernet twisted pair cable consists of four pairs of insulated wires twisted together. It mainly
transmits analog signals and is advantageous in transmitting data over shorter distances. The
maximum transmission distance is 100 m (328.08 ft).
RJ-45 connector
An Ethernet twisted pair cable connects network devices through the RJ-45 connectors at the two
ends. Figure 1
Figure 1 RJ-45 connector pinout diagram
PIN #8
PIN #1

Cable pinouts

EIA/TIA cabling specifications define two standards: 568A and 568B for cable pinouts.
Ports connected
Console port at one end and
9-pin serial port at the other
end
USB console port at one end
and USB port at the other end
RJ-45 Ethernet ports
SFP+/SFP/QSFP+/QSFP28
ports
SFP+ ports
QSFP+ ports
QSFP+ port at one end, and
SFP+ port at the other end
shows the pinouts of an RJ-45 connector.
Application
Enables users to perform debugging,
configuration, maintenance, management,
and software loading on the device.
Connects RJ-45 Ethernet ports to transmit
data.
Connects the fiber ports to transmit data.
Connects SFP+ ports to transmit data.
Connects QSFP+ ports to transmit data.
Connects a QSFP+ port to an SFP+ port.
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