
Stack Installation Guide for AT-2552XS  L2 Data Center Switch
RJ-45  Twisted Pair Port Pinouts
Figure 39 illustrates the pin layout of an RJ-45  connector and port.
Figure 39. RJ-45  Connector and Port Pin Layout
Table 17 lists the pin signals for 10 and 100 Mbps.
Table 17. Pin Signals for 10 and 100 Mbps
Pin | MDI Signal | 
 | 
  | 
  | 
  | 
  | 
  | 
  | 
1  | TX+ | RX+ | 
  | 
  | 
  | 
2  | TX-  | RX-  | 
  | 
  | 
  | 
3  | RX+  | TX+  | 
  | 
  | 
  | 
4  | Not used  | Not used  | 
  | 
  | 
  | 
5  | Not used  | Not used  | 
  | 
  | 
  | 
6  | RX-  | TX-  | 
  | 
  | 
  | 
7  | Not used  | Not used  | 
  | 
  | 
  | 
8  | Not used  | Not used  | 
  | 
  | 
  | 
81