Appendix D Cables; Ethernet Twisted Pair Cable; Rj-45 Connector; Cable Pinouts - H3C S7500E Series Installation Manual

Appendix D Cables

This chapter describes the cables used in connecting ports on different switching and routing processing
units (SRPUs) and line processing units (LPUs) of the S7500E series switches.
Table 77 Cable description
Cable

Ethernet twisted pair cable

Optical fiber
SFP+ 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 61 shows the pinouts of an RJ-45 connector.
Figure 61 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.
Port type
RJ-45 Ethernet
interfaces
XFP/SFP+/SFP/EPON
interfaces
SFP+ interfaces
149
Application
Connects RJ-45 Ethernet interfaces to transmit data
Connects the optical interfaces to transmit data
Connects SFP+ interfaces to transmit data