Rj-45 Connector Pinouts - Cisco ASR 902U Hardware Installation Manual

Serial Interface Modules Pinouts
Pin
6
7
8
9
Twisted pairs are 2-5, 6-8, 4-7.
Note
The X.21, V.35, RS-485, EIA-449, EIA-530, and IRIG-B standards are not currently supported by software.
Note

RJ-45 Connector Pinouts

The table below summarizes the pinouts for each serial interface type when using an RJ-45 connector.
Table 26: RJ45 Pinout
Pin
1
2
3
4
5
6
7
8
Note Twisted Pairs are: 1-2, 3-6, 4-5, 7-8.
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
128
Standard DB-9 Direction
DSR Input
RTS Output
CTS Input
NC/GND
Standard DB-9 Direction
RTS Input
DTR Input
TxD Input
GND
GND
RxD Output
DST Output
CTS Output
Description RS-485
DSR RxD
RTS TxD+
CTS RxD+
Unused or Ring NC
Description RS-485
Ready to send RxD+ (RS485)
DTR RxD- (RS485)
Transmit NC
Signal ground Gnd
Signal ground Gnd
Receive data -
DSR TxD-
CTS TxD+
Troubleshooting
IRIG-B
NC
IRIG-B+
NC
NC
IRIG-B
NC
NC
NC
Gnd
Gnd
IRIG-B (RS232)
IRIG-B-
(RS485)
IRIG-B+
(RS485)