Hardware Installation and Reference Guide
Appendix
69
6
Appendix
6.1
Connection Modes of Cables Prepared by Users
The following describes the connection modes and signals of cables prepared by users.
When you hold the
RJ-45 connector facing yourself, the signal wires from left to right are numbered 1 to 8.
Figure 6-1
Cable Connection and Signals
Table 6-1
Definition of Pin Signal Concerning the 1000BASE-T Port
Pin
MDI Mode
MDI-X Mode
1
Media Dependent Interface A+
Media Dependent Interface B+
2
Media Dependent Interface A-
Media Dependent Interface B-
3
Media Dependent Interface B+
Media Dependent Interface A+
4
Media Dependent Interface C+
Media Dependent Interface D+
5
Media Dependent Interface C-
Media Dependent Interface D-
6
Media Dependent Interface B-
Media Dependent Interface A-
7
Media Dependent Interface D+
Media Dependent Interface C+
8
Media Dependent Interface D-
Media Dependent Interface C-
The preceding table describes the definition of pin signal concerning the 1000BASE-T port. A 1000BASE-T port
uses four pairs of wires for data transmission, and all of the four pairs of wires must be connected. Figure 7-2
shows the connection of twisted-pair cables used by a 1000BASE-T port.