Communications:

• Interface: RS-232 port (25 pin female)
• Speed: 9600 baud
• Isolation: optically isolated to 130 volts (continuous) or 1500 V (1 sec)

 EEG Amplifiers:

• Gain: 20,000
• Input Impedance: 1000 GOhms
• Input Noise: <1 micro volts (peak to peak)
• Operating Bandwidth: 1.0-45 Hz
• Common-mode rejection: > 110 dB

Digitizer

• Type: successive approximation
• Maximum Sampling rate: 256 samples/sec (2-channels), 800 samples/sec (1-channel)
• Conversion Rate: 16 msec
• Channels: 1 or 2
• Resolution: 8 bits
• Accuracy 0.4 microvolts

Batteries

• Internal, rechargable (NiCad)
• Optional 9 volt battery adapter available
• Normal daily operating cycle: 8 hours on, 16 hours off