Chassis Ground; Usb Port; User I/O Connector - Gamry Instruments Interface 1010 Operator's Manual

Chassis Ground

The rear panel Chassis Ground banana jack is intended for one use only. When the Interface 1010 is used with
cells isolated from earth ground, connecting the chassis ground to earth ground may lower the noise measured
in the system. Note that the chassis of the Interface 1010 is connected to floating ground. Safety information
concerning this can be found in Chapter 1.
A banana plug is the only way you can connect to the Chassis Ground jack. Use a wire to connect the banana
plug to earth ground.
A black banana-plug-to-banana-plug lead is provided with your Interface 1010. You may find it useful when
making this earth-ground connection.

USB port

USB Port
The USB port on the rear panel of the Interface 1010 is a Type B connector as defined in Revision 1.1 and 2.0
of the USB Specification. Use a standard, shielded, Type A/B cable to connect this port to a computer's USB
port or a USB hub (preferably an externally powered hub). The two ends of a Type A/B cable are different. The
more-rectangular end plugs into the computer and the more-square end plugs into the Interface 1010.
A suitable USB cable was included with your Interface 1010 shipment. If this cable is lost, you can replace it
with a cable from your local computer retailer.
The Interface 1010 is a High Speed USB 2.0 peripheral, capable of data-transfer at 480 Mbits/second. If it is
plugged into a computer port incapable of High Speed operation it will downgrade to USB 1.1 full-speed
operation (12 Mbits/second), causing slower data-transfer. The Interface 1010 USB port is compatible with
Revision 1.1 and 2.0 of the USB specification. It supports the Windows Plug-n-Play mechanism, including
dynamic connect/reconnect.
The front panel USB LED should be green whenever a valid computer to Interface 1010 connection is made
and both the computer and Interface 1010 are fully powered.

User I/O Connector

The User I/O connector contains digital signals used to connect external devices to the Interface 1010. All of its
signals are referenced to earth ground so their connection does not compromise the Interface 1010 ground
isolation.
A full description of this connector is 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 User I/O Connector and their uses:
•
A 12-bit D/A converter used to set "continuously variable" settings such as electrode rotation rate on a
rotating disc electrode.
•
Four digital outputs can be used to turn on external devices under control of an Explain experimental
control script.
Panel Indicators and Connectors – Rear Panel
Chassis Ground jack
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