Paradyne 24-Port SHDSL Mini DSLAM SMD2000-24T Installation Instructions Manual page 25

DB9 to 8-Pin Modular Adapter Pinouts
To connect the COM port to the DB9 serial port of a PC, use an adapter wired as shown:
Table 13. DB9 to 8-Pin Modular Adapter Pinouts
Pin 8-Pin Modular Port
1 Transmit Data
2 Data Set Ready
4 Receive Data
5 Ground
6 Data Terminal Ready
Pins not shown are unused.
Direction PC RS232 Serial Port
→
TxD
←
DSR
←
RxD
↔
GND
→
DTR
25
RxD Receive Data
RTS Request to Send
TxD Transmit Data
GND Ground
CTS Clear to Send
Pin
2
7
3
5
8