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10-2 Digital I/O Port
Series 2600 System SourceMeters Reference Manual
2600S-901-01 Rev. A / May 2006
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Overview
The documentation in this section provides detailed information on using the
Digital I/O port and includes the following:
•
•
Output Enable (Models 2601/2602)
•
Digital I/O port
The SourceMeter has a digital input/output port that can be used to control external
digital circuitry. For example, a handler that is used to perform binning operations
can be used with a Digital I/O port.
Port configuration
The Digital I/O Port is located on the rear panel and is shown in
. Note
that a standard female DB-25 connector is used with the Digital I/O port.
Connecting cables
Use a cable equipped with a male DB-25 connector (Keithley Instruments part
number CA-126-1), or a Model 2600-TLINK cable to connect the Digital I/O port to
other Keithley instruments equipped with a Trigger Link (TLINK).
Digital I/O lines
The port provides 14 digital I/O lines. Each output is set high (+5V) or low (0V)
and can read high or low logic levels. Each digital I/O line is an open-drain signal.
+5V output
The Digital I/O Port provides a +5V output that is used to drive external logic
circuitry. Maximum current output for this line is 600mA. This line is protected by a
self-resetting fuse (one hour recovery time).
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