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Appendix E Cables
This chapter describes the cables used for connecting network ports.
Table 82 Cable description
Cable Port
type
Application
Console cable
Console port at one end and 9-pin
serial port at the other end
Enables users to perform debugging,
configuration, maintenance,
management, and software loading on the
device.
USB console cable
USB console port at one end and
USB port at the other end
RJ-45 Ethernet ports
Connects RJ-45 Ethernet ports to transmit
data
XFP/SFP+/SFP/CFP/QSFP+ ports
Connects the fiber ports to transmit data
SFP+ ports
Connects SFP+ ports to transmit data
QSFP+ ports
Connects QSFP+ ports to transmit data
QSFP+ port at one end, and SFP+
port at the other end
Connects a QSFP+ port to an SFP+ port
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.
shows the pinouts of an RJ-45 connector.
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.
PIN #8
PIN #1