S2518PB Hardware Installation Manual
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Figure 3-7 RJ-45 connector of the console port
Because 16 10/100/1000 Base-Base-T ports of S2518PB support the MDI/MDIX
auto-identification of the cable,S2518PB can adopt five classes of direct-through/cross
network cables when it connects other Ethernet terminals.
Figure 3-8 Connecting 10/100/1000Base-T ports and other Ethernet terminal
Table 3- 3 Definition of the pins of the 1000M RJ45 port
No.
Pin name
Symbol
Note
1
Sending the normal phase of the data
TXD1+
Output
2
Sending the paraphase of the data
TXD1-
Output
3
Receiving the normal phase of the
data
RXD1+
Input
4
Sending the normal phase of the data
TXD2+
Output
5
Sending the paraphase of the data
TXD2-
Output
6
Receiving the paraphase of the data
RXD1-
Input
7
Receiving the paraphase of the data
RXD2+
Input
8
Sending the paraphase of the data
RXD1-
Input
The direct-through or cross network cable has the function of auto-identification, so the five
classes of direct-through/cross network cables can be used to connect other Ethernet devices.
