Series 2600B System SourceMeter® Instrument Reference Manual
Appendix G: Model 2400 emulation
2600BS-901-01 Rev. C / August 2016
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
(on page 3-82)). 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 for information on pin 24.
