H3C S7500E Series Ethernet Switches Installation Manual

Installation Manual
H3C S7500E Series Ethernet Switches Chapter 3 Hardware Installation
3-15
Figure 3-15 RJ-45 connector
Table 3-2 RJ-45 MDI interface pinouts
10Base-T/100Base-TX 1000Base-T
Pin
Signal Function Signal Function
1 Tx+ Send data BIDA+ Bi-directional data cable A+
2 Tx- Send data BIDA- Bi-directional data cable A-
3 Rx+ Receive data BIDB+ Bi-directional data cable B+
4 Reserved — BIDC+ Bi-directional data cable C+
5 Reserved — BIDC- Bi-directional data cable C-
6 Rx- Receive data BIDB- Bi-directional data cable B-
7 Reserved — BIDD+ Bi-directional data cable D+
8 Reserved — BIDD- Bi-directional data cable D-
 Note:
Tx = Transmit data
Rx = Receive data
BI = Bi-directional data
Table 3-3 RJ-45 MDI-X interface pinouts
10Base-T/100Base-TX 1000Base-T
Pin
Signal Function Signal Function
1 Rx+ Receive data BIDB+ Bi-directional data cable B+
2 Rx- Receive data BIDB- Bi-directional data cable B-
3 Tx+ Send data BIDA+ Bi-directional data cable A+
4 Reserved — BIDD+ Bi-directional data cable D+