USB interface:
1. USB 1.1, type a connector.
2. Signal: VCC, DATA+, DATA-, GND, FG.
1. Size: 55 x 36 x 18 mm. 2. Support windows 98/2000/XP. 3. Operation temperature: -20-75℃. 4. Operation humidity: 5% ~ 95% RH. 5. Surge protection: 15KV ESD for all signals. 6. Power suppl: USB 30mA @DC5V.