TTL Interface Module
16-channel bidirectional TTL interface module for synchronizing operant conditioning chambers with electrophysiology, fiber photometry, calcium imaging, and optogenetics systems.
Louise Corscadden, PhD
Director of Science · ConductScience
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Key Specifications
Full details →- Model fit
- Configured during quote
- SKU family
- ME-OC-TTL
- Sizing
- Model-specific dimensions confirmed from the selected configuration
- Ordering
- Online checkout and quote request available
- Category
- Behavioral Mazes
- Build notes
- Confirm accessories, station layout, and support needs before purchase
TTL Interface Module for Operant Conditioning Chamber
The TTL (Transistor-Transistor Logic) Interface Module enables precise temporal synchronization between the Maze Engineers Operant Conditioning Chamber and external neuroscience recording and stimulation systems. Essential for researchers conducting simultaneous behavioral and neural measurements.
Key Features
- 16 Bidirectional I/O Channels — 8 input + 8 output channels, configurable per experiment
- BNC Connectors — Front-panel BNC ports for direct connection to all major recording equipment
- Dual Voltage Support — Compatible with both 5V TTL and 3.3V LVTTL logic levels
- Configurable Logic Polarity — Jumper-selectable active high or active low per channel
- LED Status Indicators — Per-channel LEDs for real-time visual verification during experiments
- Optical Isolation — Input channels are optically isolated (500V) to protect chamber electronics
- Sub-Microsecond Switching — Rise/fall times under 30 ns for precise event timestamping
- DB-25 Bulk Connector — Rear-panel bulk connector option for single-cable runs to breakout boxes
Compatible Recording Systems
| Application | Compatible Systems |
|---|---|
| Electrophysiology | Neuralynx Digital Lynx SX, Neuropixels, OpenEphys, Plexon OmniPlex |
| Fiber Photometry | TDT RZ processors, Neurophotometrics FP3002, Doric Lenses |
| Calcium Imaging | Inscopix nVista, UCLA Miniscope, custom miniscopes |
| Optogenetics | Laser controllers, LED drivers, closed-loop stimulation systems |
| Video Tracking | ANY-maze, EthoVision XT, DeepLabCut sync |
Applications
- Event Timestamping — Mark lever presses, nose pokes, cue onsets, and reward deliveries in neural recording data with sub-millisecond precision
- Optogenetic Triggering — Trigger laser or LED stimulation at precise behavioral moments for closed-loop paradigms
- Multi-Modal Synchronization — Bind behavioral, neural, and video data streams to a common clock signal
- Fiber Photometry Alignment — Align fluorescence traces (GCaMP, dLight, GRAB sensors) with operant behavioral events
- IV Self-Administration Studies — Synchronize drug infusion events with concurrent electrophysiology or photometry recordings
Specifications
| Parameter | Value |
|---|---|
| Total Channels | 16 (8 input + 8 output) |
| Logic Levels | 5V TTL / 3.3V LVTTL |
| Output High | 2.7V min (5V mode) / 2.4V min (3.3V mode) |
| Output Low | 0.5V max |
| Front Connectors | 16x BNC female |
| Rear Connector | 1x DB-25 female |
| Input Isolation | Optical, 500V rated |
| Switching Time | Less than 30 ns (rise/fall) |
| Indicators | 16x per-channel LEDs |
| Logic Polarity | Jumper-configurable (active high / active low) |
| Power | Supplied via operant chamber interface cable |
Why Choose Maze Engineers TTL
Unlike competitors that sell separate input and output modules — each requiring additional adapters and breakout boxes — the Maze Engineers TTL Interface Module combines bidirectional I/O, BNC connectivity, and configurable logic in a single unit. This reduces cost, cable clutter, and setup complexity.
Included
- TTL Interface Module (16-channel)
- Interface cable for Operant Conditioning Chamber connection
- Wiring diagrams for common recording system configurations
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