Error Messages - Keithley 2750 User Manual

10-22 Remote Operations
Table 10-2
RS-232 connector pinout
Pin number
1
CTS and RTS are not used.
Table 10-3
port connector on the computer (PC).
Table 10-3
PC serial port pinout
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 C
Description
1 No connection
2 TXD, transmit data
3 RXD, receive data
4 No connection
5 GND, signal ground
6 Not used
7 RTS, ready to send
8 CTS, clear to send
9 No connection
provides pinout identification for the 9-pin (DB-9) or 25-pin (DB-25) serial
DB-9 pin
Signal
1
for RS-232 error messages (+800 through +808).
Model 2750 Multimeter/Switch System User's Manual
1
1
DB-25 pin
number number
8
2 3
3 2
4 20
5 7
6 6
7 4
8 5
9 22