Dry EEG Wireless TriggerHub

Dry EEG Wireless TriggerHub

The wireless trigger hub enables interfacing between Wearable Sensing’s Dry Sensor Interface (DSI) EEG headsets and other systems, facilitating device synchronization and third-party system integration. The hub allows you to acquire triggers from and transmit triggers to many sources. consolidating up to 8 trigger sources into a single multi-channel output that inputs directly into DSI systems. The use of standardized input connectors and cables allows the user to connect and synchronize a wide range of third-party devices with the hub and with DSI systems. Triggers from the input parallel port are distributed across the connections on the output panel. The
trigger output voltage is 0 – 5 V, which is sufficient to drive the trigger inputs of standard devices.

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Description

Inputs/Outputs

  • 1 parallel port (DB-25 connector, 8 channels)
  • 4 analog inputs
  • 2 via BNC connectors
  • 2 via 3.5 mm stereo connector
  • 1 line-level audio input (3.5 mm stereo connector)
  • 2 switch inputs (3.5 mm stereo connectors)
  • 1 auto-trigger function (output on all ports)

Hub Outputs to DSI Systems

  • 8-bit wireless trigger
  • 8-bit wired (DB-25) trigger

Wireless

  • Transmission range: 10 m
  • Repeater eliminates transmission shadow effect
  • Increases fidelity of transmission to 99.999%

Uses Standard Input Connectors

  • Digital (parallel port (DB-25)
  • Analog (BNC connectors; 3.5 mm jack)
  • Line-level audio (3.5 mm jack)
  • Switch inputs (3.5 mm jack)

Analog/Parallel Port

  • Input voltage range: 0-20 V

Audio Input

  • Input voltage range: line-level, 2 Vpp
  • Min. audio signal level (1 kHz): 40 mVpp
  • Bandwidth: 40 Hz – 20 kHz (-3 dB)

AutoTrigger

  • Distributes a 1 Hz square wave to all outputs
  • Enables synchronization across multiple systems

Output Triggers

  • Voltage: 0-5 V
  • Current: 100 mA continuous/200 mA impulse
  • Min. pulse width: 20 ms
  • Min. Inter-trigger interval (rising edge): 40 ms
  • Latency: <100 micro s (digital/analog/switch inputs); <0.5 ms (audio input); 12 ms wireless with <400 micro s jitter
  • AutoTrigger: 1 Hz

Threshold

  • Number of settings: 10
  • Range: 0.63-5.8 V
  • Adjustable thresholding circuit on every input
  • Resulting triggers are consolidated and transmitted to DSI systems

Power

  • Micro-USB 1.x/2.0 receptacle

Accessories

  • Photodetector
  • Push-button trigger
  • Stereo cable
  • Wired trigger cable
  • Wireless dongle
  • Wireless repeater

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