Second generation ID card reader

technical parameter

A. Basic parameters

1. Antenna resonant frequency: 13.56MHz

2. Usage environment:

Working temperature: 0 ℃ -50 ℃

Relative humidity: 90%

Atmospheric pressure: 60kPa -110kPa

B. Performance indicators

1. Working frequency: 13.56MHz (f)

2. Reader to resident ID card modulation output

Bitrate 106kbit/s (f/128)

The modulation method adopts ASK modulation

Modulation coefficient 8% -14%

Encoding method: NRZ-L

The modulation waveform complies with ISO and IEC 14443-2 regulations

3. Antenna energy output:

Antenna surface electromagnetic field intensity (Hmax) 7.5A/m (r rns)

Electromagnetic field intensity (Hmax) at 5cm in the normal direction of the antenna surface, 1.5A/m (rms)

4. Resident ID card to reader using subcarrier modulation

Subcarrier frequency (f,) 847kHz

Subcarrier modulation method: BPSK.

Executive standard: GB/T18239-2000