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DORIC OTPG 4 User Manual

Optogenetics ttl pulse generator
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Optogenetics TTL Pulse Generator
User Manual
Version 1.2.1

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Summary of Contents for DORIC OTPG 4

  • Page 1 Optogenetics TTL Pulse Generator User Manual Version 1.2.1...

  • Page 2: Table Of Contents

    Contents 1 General Overview 2 Operations Guide 2.1 Channel Con guration ..........2.2 Control and Settings .

  • Page 3: General Overview

    Figure 1.1: Optogenetics TTL Pulse Generator. The Doric Optogenetics TTL Pulse Generator (OTPG) allows the modulation of pulse signal trains as well as their trig- gering. The generator connects to a computer using a USB-B cable, while each channel can be connected to a device using a BNC cable.

  • Page 4: Operations Guide

    Operations Guide The Optogenetics TTL Pulse Generator (OTPG; 4 or 8 channels) are controlled by the Doric Neuroscience Studio. Various pulses train sequences can be designed for any type of experiment. The OTPG user interface (Fig. 2.1) is split into two main sections: the Controls & Settings (Section 2.2) and the Acqui- sition view (Section 2.3).

  • Page 5: Channel Con Guration

    2.1 Channel Con guration 2.1.1 Channel Con guration Window Overview Figure 2.2: Channels Con guration Main Interface. The Channels con guration window is used to con gure each channel. The window can be accessed by using either the Add channel or Edit buttons. This window is separated into multiple sections shown in Figure that are de ned below.
  • Page 6 2.1.2 Channel Options Section Figure 2.3: Channel Options of the Channel Con guration Window. The Channel Option section is separated in 2 sub-section, the OTPG Options section that de nes the channel and its mode and the Trigger Options section that control the trigger method of the selected channel. The Trigger Options are not available when the channel is in Input mode.
  • Page 7 6. The Mode eld de nes how the trigger activates a sequence. Each mode are not compatible with each combi- nation of trigger type and repeatability. Figure shows the di erent available combinations for the di erent Trigger Modes. Four Modes are available and are the following: •...
  • Page 8 (a) Triggered Non-Repeatable Sequence (b) Triggered Repeatable Sequence (c) Gated Non-Repeatable Sequence (d) Gated Repeatable Sequence Figure 2.6: Continue Sequence Mode. stop the sequence and the sequence will restart from the beginning when the next rising edge is received. When the sequence is completed, it will restart with the next input pulse. (a) Triggered Non-Repeatable Sequence (b) Triggered Repeatable Sequence Figure 2.7: Restart Sequence Mode.
  • Page 9 7. The Repeatable sequence checkbox, when selected, allows a sequence to be repeated. Not all modes and trigger types can be repeated. Please refer to the Figure to know the repeatable sequence combinations. 8. The Sequence Visualisation shows a graphical representation of the behavior of the selected Trigger Option Type, Mode and Repeatability.
  • Page 10 Square Mode Figure 2.10: Sequence Options of the Square Channel Mode. The Square channel mode allows the creation of a square TTL pulse sequence. The Sequence Options of this mode are shown in Figure 2.10 and are explained below. 1. The Starting Delay de nes the time between the activation of the pulse sequence and the beginning of the signal.

  • Page 11: Control And Settings

    3. The Stampling Frequency eld de nes the frequency at which the recorded signal (using the Record button) is sampled. Note: In Doric Studio version 6 and later, the record button also saves the con guration of the OTPG (channel parameters, sampling frequency, ...) in the same .doric le. Use the Load con g button (see section 2.2.2) to load this parameters.
  • Page 12 3. The Save Con guration button is used to save the OTPG con guration in a .doric format. 4. The Load Con guration button allows an OTPG con guration in .doric format to be loaded. Recorded data les also contains the con guration used during the experiment and this con guration can be loaded using this button.

  • Page 13: Acquisition View

    2.3 Acquisition View Figure 2.15: Acquisition View Box The Acquisition View box displays all the information concerning active channels. Each channel chosen using the Add Channel button is displayed in this section, occupying a rectangular box. Each Channel box shows the following basic elements shown in Figure 2.15.

  • Page 14: Speci Cations

    Specifications Table 3.1: General Speci cations SPECIFICATIONS VALUES NOTES Maximum On/O Time 5 hours/In nity Maximum Sequence Duration In nity (continuous) or 10 Pulses Minimum Pulse Duration 0.017 ms Time Resolution Accuracy 1 µs*# of channels running Maximum Value of Repeat 4 294 967 296 –5 Maximum/Minimum Pulse Frequency...

  • Page 15: Support

    4.2 Warranty This product is under warranty for a period of 12 months. Contact Doric Lenses for return instructions. This warranty will not be applicable if the unit is damaged or needs to be repaired as a result of improper use or operation outside the conditions stated in this manual.
  • Page 16 © 2022 DORIC LENSES INC 357 rue Franquet - Quebec, (Quebec) G1P 4N7, Canada Phone: 1-418-877-5600 - Fax: 1-418-877-1008 www.doriclenses.com...

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