Cisco Catalyst 2000 Configuration Handbook page 287

Table A-2 RJ-45 Connector Pinouts Based on Media Type
Ethernet UTP
Router
RJ-45 Console
Pin (DTE) 10/100
1 RTS TX+
2 DTR TX–
3 TxD RX+
4 GND –
5 GND –
6 RxD RX–
7 DSR –
8 CTS –
*An RJ-48 connector is actually used in these applications.
Token ISDN
Ring BRIS/
1000 UTP TTE
TP0+ GND –
TP0– GND –
TP1+ TX+ TX+
TP2+ RX+ RX+
TP2– RX– RX–
TP1– TX– TX–
TP3+ GND –
TP3– – –
ISDN CT1/PRI
BRIU CSU CE1/PRI
– Rcv Ring TX Tip
– Rcv Tip TX Ring
– – TX Shld
Tip or Ring RX Tip
Ring
Tip or Tip RX Ring
Ring
– – RX Shld
– – –
– – –
56/64 kbps
DSU/CSU* T1/E1
TX Ring RX
TX Tip RX
– –
– TX
– TX
– –
RX Tip –
RX Ring
*