Table 13-2 Pc Serial Port Pinout; Error Messages - Keithley 6430 Instruction Manual

Table 13-2
RS-232 connector pinout
Pin number
1
2
3
4
5
6
7
8
9
Note: CTS and RTS are tied together.
Pins 1, 4, and 6 are tied together.
Table 13-3 provides pinout identification for the 9-pin (DB-9) or 25-pin (DB-25) serial port
connector on the computer (PC).
Table 13-3
PC serial port pinout
Signal
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

Error messages

See Appendix B for RS-232 error messages.
Description
Not used
TXD, transmit data
RXD, receive data
Not used
GND, signal ground
Not used
RTS, ready to send
CTS, clear to send
Not used
DB-9 pin
number
1
2
3
4
5
6
7
8
9
Remote Operations
DB-25 pin
number
8
3
2
20
7
6
4
5
22
13-19