11-14 Communications Interfaces Series 2600 System SourceMeters Reference Manual
2600S-901-01 Rev. A / May 2006 Return to Section 11 topics
Table 11-4 provides pinout identification for the 9-pin (DB-9) or 25-pin (DB-25)
serial port connector on the computer (PC).
Table 11-4
PC serial port pinout
Signal*
DB-9 pin
number
DB-25 pin
number
DCD, data carrier detect
RXD, receive data
TXD, transmit data
DTR, data terminal ready
GND, signal ground
DSR, data set ready
RTS, request to send
CTS, clear to send
RI, ring indicator
1
2
3
4
5
6
7
8
9
8
3
2
20
7
6
4
5
22
* The Series 2600 does not use all RS-232 signals. See
Table 11-3.
Error messages
See Appendix B for RS-232 error messages.
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