TCPUA Trigger Box - USB to LPT (DB25/DB37)

The TCPUA from Cortech Solutions is a USB to LPT/Parallel Port that allows for sending 24-bit trigger markers from your stimulation presentation computer via USB to your biosignal acquisition system. TCPUA comes with a USB port to connect the stimulation presentation computer as well as DSUB-25 (female) and DSUB-37 (female) ports. The DSUB-25 and DSUB-37 ports can be configured as either output ports ("sending" triggers to a 3rd party system) or input ports ("accepting" triggers from a 3rd party system). This specialized port is directly supported in Presentation, SuperLab and MATLAB DAQ Toolbox.

It has been tested and verified to perform with similar latencies than a standard PCI parallel port on Windows XP and Windows 7 64-bit. Rise time for trigger output (from software command to realization) tested as 0.3-0.5 msec under Presentation, and lag on ports used in input mode is comparable. Total round trip time on a loopback test under Presentation was 0.6 to 1 msec. Driver available from www.neurospec.com/Support

TCPUA Package includes:

• TCPUA Trigger Box
• USB-A to USB-B connection cable
• DSUB-37 to DSUB-37 trigger cable

System Features

• USB connection to stimulation presentation computer
• DSUB-37 female connector with two eight bit ports (16 bits)
• DSUB-25 female connector with one eight bit port (8 bits)
• Ports can be configured as either input or output
• Powered by USB - no need for an external power supply

Specifications

• Driver + Software made by National Instruments (approximately 2GB download file)
• Measured latencies: Rise time for trigger output (from software command to realization) tested as 0.3-0.5 msec under Presentation, and lag on ports used in input mode is comparable.