Our digital input/output channels provide a standard TTL-level (3.3 or 5V) signal interface between the recording system and simple switches or annunciators that may form part of experimental apparatus.
If you have specific requirements, such as the control of non-TTL (higher voltage or current) level actuators like solenoids or motors, we can help you interface devices like these  either at a design level only, or all the way through to building the device for you. We may even have a design that meets your requirements already, but which hasn't been added to our standard product line.
We're also able to modify the design of existing products to meet non-standard requirements. For example, we can change the filtering characteristics of our preamplifiers or amplifiers if our default specifications don't meet your needs.
Please contact us to discuss your needs.