Multichannel Systems MEA-System Manual - Manual (Page 11)

Appendix
11
2.4 Add-ons for Stimulation
In MEA2100-Systems the stimulation unit is already integrated. For all other systems MCS
provides general purpose stimulators like the advanced 4000 series with 2, 4 or 8 channels.
The flexible MC_Stimulus II software enables complex stimulus waveforms in current and
voltage mode. Waveforms designed in the program or imported from an external file are
converted by the STG into pulses, which are sent to the amplifier to stimulate electrodes.
The operating of the STG 4000 series is possible in download and streaming mode that
means continuous down streaming of pulses from connected computer.
Stimulus isolation units are integrated in the STG for each channel. Thus, no additional
stimulus isolations units are required.
Trigger in- and outputs are available for an exact timing of stimulation and for controlling
other instruments by TTL pulses. For example, stimulation and recording can be synchronized
with a digital trigger signal (TTL) sent from the Sync Out output of the stimulus generator to
the USB devices via digital inputs.
With the advanced MEA preamplifier with blanking circuit (BC), you will be able to ground
electrodes or select electrodes for recording and stimulation by software control MEA_Select
from the data acquisition computer. Stimulus artifacts and amplifier saturation are effectively
prevented with a blanking circuit.