Keithley 2601B

Series 2600B
System SourceMeter® Instrument Reference Manual Appendix G:
Model 2400 emulation
2600BS-901-01 Rev. B / May 2013 G-5
Digital I/O mapping
The Models 2604B, 2614B, and 2634B do not have digital input/output lines.
When in Model 2400 emulation mode, digital I/O lines 1 through 9 are used to emulate different
Model 2400 lines through the digital I/O port (see Digital I/O port (on page 3-83
)). The following table
shows the mapping.
Model 2400 line DB-25 connector pin
TLink1
1
TLink2
2
TLink3
3
TLink4
4
Digital output 1
5
Digital output 2
6
Digital output 3
7
Digital output 4 (or EOT, /EOT, BUSY, /BUSY)
8
SOT 9
Ground 15-21*
+5 V
22*
+5 V 23*
Output enable (OE) or Interlock (INT)**
24*
+5 V
25*
* Same as Series 2600B.
** See Port configuration (on page 3-83) for information on pin 24.