TDT FB128 Guide d'application
FB128 Neural Simulator
Hardware Reference
Updated 2022-10-31
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FB128 Neural Simulator | 2
Table of Contents
FB128 Neural Simulator
4Overview
5Hardware Set-up
5ZIF Connectors
6Omnetics Connectors
7Simulation Modes
7NORMAL
8HASH
9LFP ONLY
10TETRODE
12SYNC 100 Hz
12TONE 30 Hz
13TONE 1000 Hz
13TONE REF
13Inhibitory/Excitatory Mode
14Channel Mapping Mode
16Power
16FB128 Technical Specications
Table of Contents | 3
FB128 Neural Simulator
Overview
The FB128 Neural Simulator is a tool for testing experimental paradigms during the design
phase and debugging problems when they arise. The compact, battery operated device
simulates neurological waveforms or sine waves that can be output directly to a ZIF-Clip
headstage. The FB128-OMN version includes connections for a 16 channel and 32 channel
Omnetics headstage as well.
Neurological simulations consist of an LFP component and spike components. Eight unique
spike waveform shapes are used depending on the mode. Up to 128 channels can be output
(up to 96 unique).
FB128 Neural Simulator | 4
32 channels from FB128 - ltered for Spike (top) and LFP (bottom) waveforms
The simulator can operate in eight different modes and includes an inhibitory/excitatory option
for even more output variations. The simulation modes are listed on the face of the module
and LEDs indicate which is active. Operational buttons or switches, a TTL input, and a charger
input are positioned on one end of the module and output connectors for headstage
connection are positioned on the other.
Hardware Set-up
When using the FB128 to test your protocol or recording hardware, set-up the recording part of
your system as you would during your experiment with the FB128 in place of the subject and
electrodes.
ZIF Connectors
Four output connectors are positioned side-by-side at one end of the simulator. One for each
size of ZIF-Clip headstages, including one connector for the ZC16/ZC32/ZD32 and one each
for the ZC64/ZD64, ZC96/ZD96, and ZC128/ZD128.
Connect the headstage to the appropriate connector just as you would connect it to an
electrode or adapter. First, line up the square guide on the headstage with the notch on the
FB128 Neural Simulator | 5
probe connector. Hold it rmly open at the wire end of the connector until it is fully in position
then clamp it rmly in place.
ZC32 and FB128
Omnetics Connectors
The FB128-OMN has 16- and 32-channel Omnetics connectors for LP16CH-Z and LP32CH-Z
style headstages.
Connect the headstage to the appropriate connector just as you would connect it to an
electrode or adapter. Line up the label on the Omnetics connector on the headstage with the
arrow on the probe connector.
Failure to hold the clip open until it is fully in position can cause damage to the headstage connectors.
Caution
FB128 Neural Simulator | 6
LP16CH-Z and FB128-OMN
Simulation Modes
The Mode button, is positioned on the end opposite the output connectors.
To cycle through the operating modes:
Briey press the Mode button. The active mode is indicated by a lit LED on the face of the
module. If you press too long and the LED is blinking, you are in Channel Mapping Mode.
See Channel Mapping Mode.
NORMAL
Neurological waveforms, including spike waveforms and LFP.
•
FB128 Neural Simulator | 7
Pictured waveforms were generated by the FB128 and plotted in Synapse with the following
settings:
Wave Filter Settings: High Pass: 300 Hz, Low Pass: 5000 Hz
LFPx Filter Settings: High Pass: 0 Hz, Low Pass: 300 Hz
HASH
NORMAL mode but with spikes scaled down by a factor of 2.
FB128 Neural Simulator | 8
Pictured waveforms were generated by the FB128 and plotted in Synapse with the following
settings:
Wave Filter Settings: High Pass: 300 Hz, Low Pass: 5000 Hz
LFPx Filter Settings: High Pass: 0 Hz, Low Pass: 300 Hz
LFP ONLY
NORMAL with spikes scaled to zero.
FB128 Neural Simulator | 9
Pictured waveforms were generated by the FB128 and plotted in Synapse with the following
settings:
Wave Filter Settings: High Pass: 300 Hz, Low Pass: 5000 Hz
LFPx Filter Settings: High Pass: 0 Hz, Low Pass: 300 Hz
TETRODE
Neurological LFP waveforms with spikes--where spikes on each group of four channels re
synchronously. Channels 1-4 re together, channels 5-8 re together, and so forth.
FB128 Neural Simulator | 10
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