Intan I/O Expander - Intan Technologies CLAMP User Manual

Intan CLAMP System

Intan I/O Expander

Intan Technologies offers an optional I/O Expander (sold separately) that provides an additional six analog inputs and outputs and
an additional 14 digital inputs and outputs. This unit is shown below:
Front Panel
The front panel of the Intan I/O Expander provides auxiliary digital and analog inputs, and analog outputs. From left to right:
Analog outputs: Two analog outputs for monitoring measured signals or clamp signals from CLAMP headstages. (Four
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more analog outputs are provided on the rear panel.) These ports have a -10.24V to +10.24V voltage range.
Digital inputs: Six BNC sockets are provided for recording digital signals in synchrony with the headstage signals.
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(Eight more digital inputs are provided on the rear panel.)
Analog inputs: Six BNC sockets are provided for recording analog signals, or for controlling the headstages using
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externally provided analog waveforms. Signals are digitized with 16-bit ADCs over a range of -10.24V to +10.24V.
Power indicator: This red LED is illuminated when the Intan I/O Expander is powered. The I/O Expander receives low-
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voltage DC power over an interface cable from the controller.
Rear Panel
The rear panel of the Intan I/O Expander provides auxiliary input and outputs lines. From left to right:
Interface port: This connector is used to interface with the main controller unit.
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Analog outputs: Four analog outputs for monitoring measured signals or clamp signals from CLAMP headstages. (Two
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more analog outputs are provided on the front panel.) These ports have a -10.24V to +10.24V voltage range.
Digital outputs: Six BNC sockets produce either 3.3V or 5.0V digital signals that can be synchronized with software-
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generated voltage clamp or current clamp waveforms. The CONFIG4 switch on the main Intan controller selects the
voltage level used by these ports.
Digital inputs 9-16: Eight additional digital inputs are provided on screw terminal blocks. System ground connections
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are also provided on the ends of the terminal block.
Digital outputs 9-16: Eight additional digital outputs are provided on screw terminal blocks. System ground connections
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are also provided on the ends of the terminal block. The CONFIG4 switch on the main Intan controller selects the
voltage level used by these ports.
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