Digital I/O Port; Port Configuration - Keithley 2500 User Manual

12-2 Digital I/O Port, Output Enable, and Output Configuration

Digital I/O port

The Model 2500 has a digital input/output port that can be used to control external digital
circuitry, such as a handler that is used to perform binning operations when testing limits.
Port configuration
The digital I/O port is located on the rear panel and is shown in
standard male DB-9 connector is used for the digital I/O port.
NOTE
Figure 12-1
Output Enable and digital I/O
RATINGS MAX
100V @ 20mA
COMMON
MODE
200V
INPUT INPUT
CHANNEL 1 CHANNEL 2
!
I
CAT
RATINGS MAX
100V @ 20mA
VOLTAGE SOURCE VOLTAGE SOURCE
OUTPUT CHANNEL 1 OUTPUT CHANNEL 2
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The four digital output lines and the SOT line are primarily intended for limit
testing with a device handler. See
forming limit tests and interfacing to handlers and
information on programming the Model 2500 to respond to the start-of-test
(SOT) pulse from a handler.
MADE IN
U.S.A.
DIGITAL I/O
RS-232
TRIGGER LINK
LINE RATING
50, 60Hz
60 VA MAX
FUSE LINE
630 mAT 100 VAC
(SB) 120 VAC
!
315 mAT 220 VAC
(SB) 240 VAC
Model 2500
Models 2500 and 2502 User's Manual
Section 11, "Limit Testing,"
IEEE-488
(CHANGE IEEE ADDRESS
WITH FRONT PANEL MENU)
Figure 12-1. Note that a
for details on per-
Section 10, "Triggering,"
1 5
9
6
1 = Digital Output #1
2 = Digital Output #2
3 = Digital Output #3
4 = Digital Output #4
(EOT, /EOT, BUSY, /BUSY)
5 = Ground
6 = Trigger Input (SOT)
7 = +5V
8 = Output Enable
9 = Ground
for