2-PORT RS-232/422/485 PCI HOST ADAPTER
Appendix B: Connector Pinouts
B.1 RS-232
Table
Abbreviation | Name | Pin # | Mode |
|
|
|
|
TD | Transmit Data | 3 | Output |
|
|
|
|
RTS | Request To Send | 7 | Output |
|
|
|
|
DTR | Data Term Ready | 4 | Output |
|
|
|
|
GND | Ground | 5 |
|
|
|
|
|
RD | Receive Data | 2 | Input |
|
|
|
|
DCD | Data Carrier Detect | 1 | Input |
|
|
|
|
DSR | Data Set Ready | 6 | Input |
|
|
|
|
CTS | Clear To Send | 8 | Input |
|
|
|
|
RI | Ring Indicator | 9 | Input |
|
|
|
|
NOTE
These pin assignments meet the
26
