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Misc. I/O Connector
The Misc. (Miscellaneous) I/O connector is a
multipurpose connector. It contains both digital and
analog signals used to connect external devices to
the Reference 600+.
All of its signals are isolated from both earth ground
and the Reference 600+’s Floating Ground. The
device connected to this connector establishes a
ground reference. This isolation allows the Misc. I/O
connector to be connected to earth-grounded
apparatus, without compromising the Reference
600+’s ground isolation.
A full description of this connector can be found in
Appendix C of this manual. This appendix includes
details such as connector pin-out, output and input
voltage levels, and full signal descriptions.
The following list is a short description of the signals
in the Misc. I/O Connector and their uses:
• Sync Out and Sync In signal allow two or more
Reference 600+ potentiostats to use one data-
acquisition clock.
• Four digital outputs can be used to turn on
external devices under control of an Explain
experimental control script.
• Some of Gamry applications assign three of the
digital outputs to control stirring, flow of de-
aeration gas, and formation of mercury drops on
a mercury-drop electrode.
• Four digital inputs that can be read in an Explain
experimental control script.
• A 12-bit D/A converter used to set “continuously variable” settings, such as electrode-rotation rate on a
rotating-disk electrode.
• A 5 V isolated power supply that can provide up to 50 mA of current for external circuitry.
I Monitor BNC
The I Monitor BNC connector is the output of the Reference 600+’s current measurement circuit. With
the exception of the filtering described below, it is the raw signal. It is high bandwidth on the less-sensitive
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