256-channel EEG system

prolonged EEGvideo-monitored EEGwith EEG mapping

Overview
The NCC 256-Channel Fiber-Optic Video EEG System integrates high-density EEG acquisition, fiber-optic isolation and synchronized video recording in a compact clinical platform. It offers 24-bit A/D conversion, wireless (Wi‑Fi) transmission with fiber isolation, DC isolated power, automatic calibration and a lightweight design suitable for routine EEG, long-term monitoring, epilepsy localization and brain mapping.

Key Features

• Clinical versatility: Professional amplifier combining high-channel acquisition, signal amplification and A/D conversion in a compact module for routine and prolonged recordings.
• Enhanced patient safety: Isolated DC power operation reduces electric shock risk and minimizes interference, eliminating the need for grounding leads or additional shielding.
• High-fidelity signals: 24-bit A/D conversion and selectable sampling rates (256 Hz, 512 Hz) — product documentation also references 8 kHz as an additional acquisition metric; wireless transmission via Wi‑Fi with fiber-optic isolation preserves signal integrity.
• Optimized workflow: Built-in impedance testing, automatic calibration and all-in-one electrode cabling plus EEG cap reduce setup time and operational complexity.
• Synchronized video option: Optional video acquisition module enables time-locked video recording, editing and display alongside EEG for improved diagnostic review.

Advantages

• High spatial resolution: 256-channel high-density montage increases spatial sampling versus conventional 32–64 channel systems, improving cortical source localization accuracy.
• Comprehensive head coverage: Dense whole-head electrode distribution enhances sensitivity to deep and basal temporal/interhemispheric activity.
• Improved signal integrity: High-density geometry and advanced referencing strategies reduce widespread artifacts and increase detection of small-scale neurophysiological events.
• Clinical workflow efficiency: Compact amplifier, integrated cabling and automated testing facilitate extended recordings with reduced patient preparation time.

Service & Support
Manufacturer provides lifecycle support including technical assistance, training programs, maintenance services and documentation to maximize system uptime and clinical reliability. Local and global service channels are available through the vendor network.

Technical Specifications

• A/D conversion: 24 bit
• Sampling rate: 256 Hz, 512 Hz (documentation also references 8 kHz as an additional data point)
• Input impedance: ≥3000 MΩ
• CMRR: ≥100 dB
• Noise: ≤0.4 µV RMS
• Low-pass filter: 5–120 Hz (configurable)
• Sensitivity: 10 µV/cm – 1600 µV/cm, 18 levels adjustable
• Amplitude–frequency characteristic: 0.1–100 Hz
• Transmission: Wi‑Fi / wireless (fiber-optic isolation)
• Power: Isolated DC power supply (reduces shock risk; no ground wires required)
• Workflow features: Built-in impedance testing, automatic calibration, all-in-one electrode cables and EEG cap