Black Box IC187C Manual De Usuario
26
2-PORT RS-232/422/485 PCI HOST ADAPTER
Appendix B: Connector Pinouts
B.1 RS-232
Table B-1. Pinout of Connector Set to RS-232
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 EIA/TIA/ANSI-574 standard for RS-232
DTE pinning on DB9 connectors.
DTE pinning on DB9 connectors.