Specifications

18
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 5. DB9 to 8-Pin Modular Adapter Pinouts
Pin
8-Pin Modular Port
Direction
PC RS232 Serial Port
Pin
1 Transmit Data TxD RxD Receive Data 2
2 Data Set Ready DSR RTS Request to Send 7
4 Receive Data RxD TxD Transmit Data 3
5 Ground GN
D
GND Ground 5
6 Data Terminal Ready DTR CTS Clear to Send 8
Pins not shown are unused.