BIOPAC® Systems, Inc. Logo

Routing TTL pulses out of the STP100C BNC connector

Parts needed:
2 x JUMP100
STP100C
UIM100C

The STP100C receives a digital pulse coming from a stimulus presentation program, either through the 37 pin connector or the 25 pin connector.

To route a digital pulse from a presentation program, for example to drive another device outside of the MP system, take a JUMP100 and insert into the Digital I/O port on the back of the UIM100C (note, the UIM100C is separated and the port strip has a screw to secure the JUMP100C). 

Route the other end of the jumper cable into digital channels 0 – 3 on the UIM100C, this corresponds to the Coaxial outputs on the front of the STP100C 1-4 respectively.

Next route a JUMP100 from GRND D on the UIM100C to channel 4 digital I/O on the UIM100C. This completes the circuit and activates the front relays.

In the software, go to MP150>SHOW MANUAL CONTROL.

In the MANUAL CONTROL dialog box, set the DIGITAL I/O for Channels 0 -7 to INPUT.   Set the DIGITAL I/O for channels 8 – 15 to read INPUT as well.

As an example, you have a digital TTL pulse coming into the back of the STP100C for channel 8.   This channel will be enabled in AcqKnowledge and every time a pulse comes through to that channel, it will route to channel 0.  A pulse will be seen coming out of BNC output #1 on the STP100C.

Associated Applications

Spotlight On
StimTracker Event Marking

StimTracker Stimulus Presentation Marker Interface – USB

StimTracker Duo. StimTracker Quad MARK. SYNC. AUDIT. StimTracker Duo and Quad autonomously  detect the onset of events to avoid operating system delays. The Quad adds direct TTL output, support for vocal response onset (voice key), more light sensors, and the option to install a Raspberry Pi board. Onset of Auditory Stimuli – Pass the audio via StimTracker, set […]

View All
Latest News

New Citations | Stimulation and Mental Processing

Recent developments regarding electric stimulation and mental processing have lead to interesting developments in psychophysiology and physiological sciences. The following studies look at developments in how we potentially care for and understand solutions to issues with mental health, as well as new ways to monitor electrical stimulus on participants. The ventromedial prefrontal cortex (vmPFC) is […]

Alan Macy Honored as Local Hero

“Alan Macy: Scientist, Entrepreneur, and Visionary Community Builder” The Santa Barbara Independent honored Alan Macy as a Local Hero. “What makes Macy a Santa Barbara Independent Local Hero is the combination of vision, generosity, and persistence he has shown in bringing creative people together and in crafting innovative venues for them to collaborate. …For this, and for his […]

Read All
Request a Demonstration
Request a Demonstration