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:
Pins not shown are unused.
Table 13. 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
GND
↔
GND
Ground
5
6
Data Terminal Ready
DTR
→
CTS
Clear to Send
8
Содержание 24-Port SHDSL Mini DSLAM SMD2000-24T
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