Cisco ASR 902 Troubleshooting Manual page 7

Troubleshooting
Table 10: G.703 RJ48C Pinout
Pin
1
2
3
4
5
6, 7, 8
Serial Interface Modules Pinouts
The following sections summarize the pinouts on the 14-port serial interface module when used with the cable
types specified in Connecting Serial Cables .
DB-9 Connector Pinouts
The table below summarizes the pinouts for each serial interface type when using a DB-9 connector.
Table 11: DB-9 Pinouts
Pi n
1
2
3
4
5
6
7
8
9
Signal Name
Rx_Tip
Rx_Ring
NC
Tx_Tip
Tx_Ring
NC
Standard Direction Description
DB-9
NC Output Unused
RxD Input Receive
TxD Output Transmit
DTR Output DTR
GND - GND
DSR Input DSR
RTS Output RTS
CTS Input CTS
NC/GND Unused or Ring
Direction Description
Input G.703 64 Kbps Co-Directional receive
tip signal
Input G.703 64 Kbps Co-Directional receive
ring signal
- -
Output G.703 64 Kbps Co-Directional transmit
tip signal
Output G.703 64 Kbps Co-Directional transmit
ring signal
- -
RS-485 IRIG-B
NC NC
NC NC
- IRIG-B-
(RS232)
TxD- IRIG-B-
(RS485)
GND GND
RxD NC
TxD+ IRIG-B+
RxD+ NC
NC NC
Serial Interface Modules Pinouts
Troubleshooting
7